{"id":7039,"date":"2020-05-05T10:49:12","date_gmt":"2020-05-05T10:49:12","guid":{"rendered":"https:\/\/symphonyventicool.com\/blogs\/?p=7039"},"modified":"2026-05-08T13:46:31","modified_gmt":"2026-05-08T13:46:31","slug":"how-evaporative-air-cooler-efficiency-changes-with-wet-bulb-temperature","status":"publish","type":"post","link":"https:\/\/symphonyventicool.com\/blogs\/how-evaporative-air-cooler-efficiency-changes-with-wet-bulb-temperature\/","title":{"rendered":"How Evaporative Air Cooler Efficiency Changes with Wet Bulb Temperature: A Practical Guide for India"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"7039\" class=\"elementor elementor-7039\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6616d99 e-flex e-con-boxed e-con e-parent\" data-id=\"6616d99\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6aa113b elementor-widget elementor-widget-text-editor\" data-id=\"6aa113b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The most common question about evaporative air coolers &#8211; from facility managers evaluating purchases to engineers designing industrial cooling systems is: how much will it actually cool? The answer depends on one environmental variable that most buyers have never heard of: the wet bulb temperature.<\/span><\/p><p><span style=\"font-weight: 400;\">Wet bulb temperature is the single most important factor determining evaporative air cooler efficiency. Understanding it is the difference between a buyer who installs a system that delivers exactly what was specified and one who is disappointed because they were sold a cooling number that applied to different conditions than their facility.<\/span><\/p><p><span style=\"font-weight: 400;\">This is a technical guide to wet bulb temperature and its practical implications for industrial evaporative air cooler performance across India&#8217;s diverse climatic zones.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-96c1b4a e-flex e-con-boxed e-con e-parent\" data-id=\"96c1b4a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-3778ab4 e-con-full cta_container e-flex e-con e-child\" data-id=\"3778ab4\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a3d77df cta_text elementor-widget elementor-widget-heading\" data-id=\"a3d77df\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\">We are Available on Chat, Call, Email! <\/span>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-95a0df9 elementor-align-center elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"95a0df9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"mailto:industrial@symphonylimited.com\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Email Now!<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a065557 e-flex e-con-boxed e-con e-parent\" data-id=\"a065557\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e9cb45d elementor-widget elementor-widget-heading\" data-id=\"e9cb45d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/symphonyventicool.com\/blogs\/how-evaporative-air-cooler-efficiency-changes-with-wet-bulb-temperature\/#What_Is_Wet_Bulb_Temperature_and_Why_Does_It_Matter\" >What Is Wet Bulb Temperature and Why Does It Matter?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/symphonyventicool.com\/blogs\/how-evaporative-air-cooler-efficiency-changes-with-wet-bulb-temperature\/#Wet_Bulb_Temperature_Across_India_A_Zone-by-Zone_Guide\" >Wet Bulb Temperature Across India: A Zone-by-Zone Guide<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/symphonyventicool.com\/blogs\/how-evaporative-air-cooler-efficiency-changes-with-wet-bulb-temperature\/#How_Saturation_Efficiency_Affects_Performance\" >How Saturation Efficiency Affects Performance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/symphonyventicool.com\/blogs\/how-evaporative-air-cooler-efficiency-changes-with-wet-bulb-temperature\/#Evaporative_Cooling_vs_HVAC_System_The_Humidity_Threshold\" >Evaporative Cooling vs HVAC System: The Humidity Threshold<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/symphonyventicool.com\/blogs\/how-evaporative-air-cooler-efficiency-changes-with-wet-bulb-temperature\/#Frequently_Asked_Questions\" >Frequently Asked Questions<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"What_Is_Wet_Bulb_Temperature_and_Why_Does_It_Matter\"><\/span>What Is Wet Bulb Temperature and Why Does It Matter?<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7bc4fde elementor-widget elementor-widget-text-editor\" data-id=\"7bc4fde\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Dry bulb temperature is the standard air temperature measured by a thermometer in the shade. Wet bulb temperature is the temperature measured by a thermometer whose bulb is wrapped in a water-saturated wick &#8211; it measures the cooling effect of evaporation under current air conditions.<\/span><\/p><p><span style=\"font-weight: 400;\">An evaporative air cooler works by evaporating water into the airstream. The maximum possible cooling effect &#8211; the theoretical limit &#8211; is the difference between the dry bulb temperature and the wet bulb temperature. This difference is called the wet bulb depression.<\/span><\/p><p><span style=\"font-weight: 400;\">If the outdoor dry bulb temperature is 44\u00b0C and the wet bulb temperature is 24\u00b0C, the wet bulb depression is 20\u00b0C. An evaporative air cooler operating at 80% saturation efficiency will deliver approximately 0.8 \u00d7 20 = 16\u00b0C of cooling. Discharge air temperature would be approximately 28\u00b0C.<\/span><\/p><p><span style=\"font-weight: 400;\">If the same 44\u00b0C outdoor temperature occurs at 70% humidity, the wet bulb temperature rises to approximately 38\u00b0C, and the wet bulb depression falls to 6\u00b0C. The same evaporative air cooler now delivers only 0.8 \u00d7 6 = 4.8\u00b0C of cooling &#8211; discharge air of approximately 39\u00b0C, which is essentially no cooling at all.<\/span><\/p><p><span style=\"font-weight: 400;\">This is why humidity is not just a comfort factor &#8211; it is a fundamental technical parameter that determines whether an evaporative air cooler will perform.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bd0b4ed e-flex e-con-boxed e-con e-parent\" data-id=\"bd0b4ed\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3fdab8b elementor-widget elementor-widget-heading\" data-id=\"3fdab8b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Wet_Bulb_Temperature_Across_India_A_Zone-by-Zone_Guide\"><\/span>Wet Bulb Temperature Across India: A Zone-by-Zone Guide\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e5f8064 e-flex e-con-boxed e-con e-parent\" data-id=\"e5f8064\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-1de44e4 e-con-full e-flex e-con e-child\" data-id=\"1de44e4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e6e0869 elementor-widget elementor-widget-text-editor\" data-id=\"e6e0869\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">India&#8217;s climatic diversity means evaporative air cooler performance varies significantly by geography:<\/span><\/p><p><span style=\"font-weight: 400;\">Rajasthan (Jaisalmer, Jodhpur, Bikaner, Barmer): Average summer wet bulb temperatures of 18\u201324\u00b0C with dry bulb temperatures reaching 44\u201348\u00b0C. Wet bulb depressions of 20\u201328\u00b0C. Among the best conditions for evaporative cooling in the world. Industrial evaporative air coolers deliver 15\u201318\u00b0C temperature drops routinely.<\/span><\/p><p><span style=\"font-weight: 400;\">Gujarat and western Madhya Pradesh (Ahmedabad, Surat, Indore, Bhopal): Summer wet bulb temperatures of 22\u201327\u00b0C with dry bulb temperatures of 40\u201344\u00b0C. Wet bulb depressions of 15\u201320\u00b0C. Excellent evaporative cooling conditions. 12\u201316\u00b0C temperature drops achievable.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bc35ef0 e-con-full e-flex e-con e-child\" data-id=\"bc35ef0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-66088b4 elementor-widget elementor-widget-image\" data-id=\"66088b4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"825\" height=\"688\" src=\"https:\/\/symphonyventicool.com\/blogs\/wp-content\/uploads\/2026\/05\/Wet-Bulb-Temperature-India-Regional-Cooling-cInsigh.jpg\" class=\"attachment-large size-large wp-image-7047\" alt=\"\" srcset=\"https:\/\/symphonyventicool.com\/blogs\/wp-content\/uploads\/2026\/05\/Wet-Bulb-Temperature-India-Regional-Cooling-cInsigh.jpg 825w, https:\/\/symphonyventicool.com\/blogs\/wp-content\/uploads\/2026\/05\/Wet-Bulb-Temperature-India-Regional-Cooling-cInsigh-768x640.jpg 768w, https:\/\/symphonyventicool.com\/blogs\/wp-content\/uploads\/2026\/05\/Wet-Bulb-Temperature-India-Regional-Cooling-cInsigh-150x125.jpg 150w\" sizes=\"(max-width: 825px) 100vw, 825px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-996f0ce e-flex e-con-boxed e-con e-parent\" data-id=\"996f0ce\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7827d2e elementor-widget elementor-widget-text-editor\" data-id=\"7827d2e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Punjab, Haryana, western UP (Ludhiana, Ambala, Kanpur, Agra): Wet bulb temperatures of 24\u201328\u00b0C with dry bulb of 42\u201346\u00b0C. Wet bulb depressions of 15\u201320\u00b0C. Very effective evaporative cooling conditions.<\/span><\/p><p><span style=\"font-weight: 400;\">Maharashtra interior and Andhra Pradesh (Pune, Nashik, Nagpur, Nanded): Wet bulb temperatures of 24\u201328\u00b0C. Good cooling conditions with 10\u201314\u00b0C achievable temperature drops.<\/span><\/p><p><span style=\"font-weight: 400;\">Coastal regions (Mumbai, Chennai, Kochi, Kolkata): Wet bulb temperatures of 28\u201334\u00b0C with moderate dry bulb temperatures of 32\u201336\u00b0C. Wet bulb depressions of only 4\u20138\u00b0C. Evaporative cooling is marginally effective and may require supplementary ventilation to provide meaningful comfort improvement.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c5c20c5 e-flex e-con-boxed e-con e-parent\" data-id=\"c5c20c5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8da8dac elementor-widget elementor-widget-heading\" data-id=\"8da8dac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"How_Saturation_Efficiency_Affects_Performance\"><\/span>How Saturation Efficiency Affects Performance<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3d751f8 elementor-widget elementor-widget-text-editor\" data-id=\"3d751f8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Not all evaporative air coolers achieve the same proportion of the theoretical maximum cooling. Saturation efficiency &#8211; the percentage of the wet bulb depression that the cooler actually delivers &#8211; depends on CELdek pad thickness, air velocity through the pads, and water distribution uniformity.<\/span><\/p><p><span style=\"font-weight: 400;\">Symphony Venti-Cool&#8217;s industrial LSV systems achieve saturation efficiencies of 80\u201390% using 100mm and 150mm CELdek pads with precision water distribution systems. Thinner pads at higher velocities may achieve only 60\u201370% saturation efficiency &#8211; delivering significantly less cooling than the theoretical maximum for the same conditions.<\/span><\/p><p><span style=\"font-weight: 400;\">When comparing evaporative air cooler specifications from different manufacturers, always ask for the saturation efficiency rating at the specified airflow. A unit with higher CFM but lower saturation efficiency may deliver similar or less cooling than a unit with lower CFM and higher saturation efficiency.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6dd0616 e-flex e-con-boxed e-con e-parent\" data-id=\"6dd0616\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-ff9e6ce e-con-full cta_container e-flex e-con e-child\" data-id=\"ff9e6ce\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-877a2c0 cta_text elementor-widget elementor-widget-heading\" data-id=\"877a2c0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\">We\u2019re Just a Call Away<\/span>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a3feb1a elementor-align-center elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"a3feb1a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"tel:+916354914487\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Call Now !<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3d8dca4 e-flex e-con-boxed e-con e-parent\" data-id=\"3d8dca4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d904582 elementor-widget elementor-widget-heading\" data-id=\"d904582\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Evaporative_Cooling_vs_HVAC_System_The_Humidity_Threshold\"><\/span>Evaporative Cooling vs HVAC System: The Humidity Threshold<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ecaafaa elementor-widget elementor-widget-text-editor\" data-id=\"ecaafaa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">The decision between an industrial evaporative air cooler and a HVAC system for a given location depends primarily on the wet bulb temperature during the critical cooling months.<\/span><\/p><p><span style=\"font-weight: 400;\">As a practical rule: if the wet bulb temperature during peak summer months stays below 24\u00b0C, evaporative cooling is highly effective and should be the first choice. If wet bulb temperature ranges from 24\u201328\u00b0C, evaporative cooling is effective and significantly more cost-efficient than HVAC for the achievable cooling. If wet bulb temperature consistently exceeds 28\u00b0C (typical of coastal India during monsoon), supplementary mechanical cooling or ventilation-only mode is required.<\/span><\/p><p><span style=\"font-weight: 400;\">For most of inland India during the critical April-to-June cooling season, wet bulb temperatures are below 26\u00b0C &#8211; making evaporative cooling the effective and economical choice over HVAC systems.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-848d149 e-flex e-con-boxed e-con e-parent\" data-id=\"848d149\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-01597db elementor-widget elementor-widget-heading\" data-id=\"01597db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions\n\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5507651 elementor-widget elementor-widget-shortcode\" data-id=\"5507651\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">        <style type=\"text\/css\">\n        \t        \t.thfaqf-tab h3.thfaqf-tablinks-7041.active {\n\t\t\t    background-color: #f5f5f5!important;\n\t\t\t    color: #f5f5f5!important;\n\t\t\t}\n\t\t\t.thfaqf-tab h3.thfaqf-tablinks-7041:hover {\n\t\t\t  \tbackground-color: #f5f5f5!important;\n\t\t\t}\n\t\t    .thfaqf-faq-item-7041.thfaqf-active .thfaqf-title-text{\n\t\t\t\tcolor: #ffffff!important;\n\t\t\t}\n          \n        <\/style>\n       \t\t<div class=\"thfaqf-faq-list thfaqf-theme-wrapper-hello-elementor\">\n            <h3 class=\"thfaqf-faq-list-title\">How Evaporative Air Cooler Efficiency Changes with Wet Bulb Temperature: A Practical Guide for India<\/h3><div class=\"faq-item-wrapper\">\t\t<div id=\"thfaqf-faq-item-7041_0\" class=\"thfaqf-faq-item  thfaqf-faq-item-7041    thfaqf-active thfaqf-post-id-7041 thfaqf-count-dsply-setngs\" style=\"border-radius: 6px;\" >\n\t\t\t<div data-active_color=\"#ffffff\" class=\"thfaqf-faq-item-title\" style=\"border-width: 1px; border-style: solid; margin-bottom: -1px; background-color: #f3f3f3; border-color: #f3f3f3;\">\n \t\t\t\t<h4>\n \t\t\t\t\t \t\t\t\t<span class=\"thfaq-marker thfaqf-toggle-icon\" style=\" color: #007dcc;\"><\/span>\n \t\t\t\t\t<span class=\"thfaqf-title-text \" style=\" color: #000000;\" >Where can I find wet bulb temperature data for my city?<\/span>\n \t\t\t\t<\/h4>\t\n\t\t\t<\/div>\n\t\t\t<div class=\"thfaqf-faq-item-content\" style=\"border-width: 1px; border-style: solid; background-color: #ffffff; border-color: #ffffff; color: #000000;\" >\n\t\t\t\t<p><span style=\"font-weight: 400\">Wet bulb temperature data for Indian cities is available from the India Meteorological Department (IMD) and in ASHRAE's climatic design data. For specific industrial sites, a psychrometric weather station can measure wet bulb temperature directly. Symphony Venti-Cool's technical team uses IMD climate data in their system design calculations for every location.<\/span><\/p>\n\t\t\t\t<div class=\"thfaq-enable-comment-box thfaqf-hide\"> <p>\t\t<div class=\"thfaqf-comment-wrapper\">\n\t\t\t<form form method=\"post\" class=\"thfaqf-post-comment\">\n\t\t\t\t<p><input class=\"thfaqf-comment-box thfaqf-uname\" type=\"text\" placeholder=\"Name...\"name=\"user_name\"\/><\/p>\n\t\t\t\t<p class=\"threq-name\"><\/p>\n\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"thfaqf_comment\">\n\t\t\t\t<input type=\"hidden\" name=\"faq_id\" value=\"7041\">\n\t\t\t\t<input type=\"hidden\" name=\"faq_index\"value=\"0\">\n\t\t\t\t<p><textarea placeholder=\"Add a Comment...\"name=\"user_msg\" class=\"thfaqf-comment-box thfaqf-ucomment\"><\/textarea><\/p>\n\t\t\t\t<p class=\"threq-comment\"><\/p>\n\t\t\t\t<input type=\"hidden\" name=\"wp_thfaqc_nonce\" value=\"ff1d91cc99\"\/>\n\t\t    \t<p><button type=\"submit\" name=\"thfaqf_comment_submt\" class=\"thfaqf-submt-cmmt button primary is-xsmall\" onclick=\"submitFaqfComment(this)\">Send<\/button><\/p><p class=\"thfaqf-comment-validetion\"><\/p>\n\t\t    <\/form>\t\n\n\t\t    \t\t<\/div>\n\t\t <\/p><\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"log\"><\/div>\n\t\t<\/div>\n \t\t\t\t<div id=\"thfaqf-faq-item-7041_1\" class=\"thfaqf-faq-item  thfaqf-faq-item-7041    thfaqf-post-id-7041 thfaqf-count-dsply-setngs\" style=\"border-radius: 6px;\" >\n\t\t\t<div data-active_color=\"#ffffff\" class=\"thfaqf-faq-item-title\" style=\"border-width: 1px; border-style: solid; margin-bottom: -1px; background-color: #f3f3f3; border-color: #f3f3f3;\">\n \t\t\t\t<h4>\n \t\t\t\t\t \t\t\t\t<span class=\"thfaq-marker thfaqf-toggle-icon\" style=\" color: #007dcc;\"><\/span>\n \t\t\t\t\t<span class=\"thfaqf-title-text \" style=\" color: #000000;\" >Does wet bulb temperature vary seasonally in Indian cities?<\/span>\n \t\t\t\t<\/h4>\t\n\t\t\t<\/div>\n\t\t\t<div class=\"thfaqf-faq-item-content\" style=\"border-width: 1px; border-style: solid; background-color: #ffffff; border-color: #ffffff; color: #000000;\" >\n\t\t\t\t<p><span style=\"font-weight: 400\">Yes, significantly. In most inland Indian cities, wet bulb temperatures are lowest - and evaporative cooling most effective - in March, April, and May before monsoon arrives. During monsoon (July\u2013August), wet bulb temperatures rise sharply as humidity increases. The cooling season for evaporative systems effectively runs from February to June and from September to November in most inland locations.<\/span><\/p>\n\t\t\t\t<div class=\"thfaq-enable-comment-box thfaqf-hide\"> <p>\t\t<div class=\"thfaqf-comment-wrapper\">\n\t\t\t<form form method=\"post\" class=\"thfaqf-post-comment\">\n\t\t\t\t<p><input class=\"thfaqf-comment-box thfaqf-uname\" type=\"text\" placeholder=\"Name...\"name=\"user_name\"\/><\/p>\n\t\t\t\t<p class=\"threq-name\"><\/p>\n\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"thfaqf_comment\">\n\t\t\t\t<input type=\"hidden\" name=\"faq_id\" value=\"7041\">\n\t\t\t\t<input type=\"hidden\" name=\"faq_index\"value=\"1\">\n\t\t\t\t<p><textarea placeholder=\"Add a Comment...\"name=\"user_msg\" class=\"thfaqf-comment-box thfaqf-ucomment\"><\/textarea><\/p>\n\t\t\t\t<p class=\"threq-comment\"><\/p>\n\t\t\t\t<input type=\"hidden\" name=\"wp_thfaqc_nonce\" value=\"ff1d91cc99\"\/>\n\t\t    \t<p><button type=\"submit\" name=\"thfaqf_comment_submt\" class=\"thfaqf-submt-cmmt button primary is-xsmall\" onclick=\"submitFaqfComment(this)\">Send<\/button><\/p><p class=\"thfaqf-comment-validetion\"><\/p>\n\t\t    <\/form>\t\n\n\t\t    \t\t<\/div>\n\t\t <\/p><\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"log\"><\/div>\n\t\t<\/div>\n \t\t\t\t<div id=\"thfaqf-faq-item-7041_2\" class=\"thfaqf-faq-item  thfaqf-faq-item-7041    thfaqf-post-id-7041 thfaqf-count-dsply-setngs\" style=\"border-radius: 6px;\" >\n\t\t\t<div data-active_color=\"#ffffff\" class=\"thfaqf-faq-item-title\" style=\"border-width: 1px; border-style: solid; margin-bottom: -1px; background-color: #f3f3f3; border-color: #f3f3f3;\">\n \t\t\t\t<h4>\n \t\t\t\t\t \t\t\t\t<span class=\"thfaq-marker thfaqf-toggle-icon\" style=\" color: #007dcc;\"><\/span>\n \t\t\t\t\t<span class=\"thfaqf-title-text \" style=\" color: #000000;\" >If I am in a coastal city, does an evaporative air cooler have any benefit?<\/span>\n \t\t\t\t<\/h4>\t\n\t\t\t<\/div>\n\t\t\t<div class=\"thfaqf-faq-item-content\" style=\"border-width: 1px; border-style: solid; background-color: #ffffff; border-color: #ffffff; color: #000000;\" >\n\t\t\t\t<p><span style=\"font-weight: 400\">In coastal cities during monsoon months, evaporative cooling provides minimal temperature reduction. However, these systems still provide valuable benefits year-round: significant fresh air ventilation that improves air quality and dilutes contaminants, air movement that increases the felt temperature reduction through convective cooling, and in the pre-monsoon and post-monsoon months (February\u2013May and October\u2013December), evaporative cooling is effective even in coastal locations.<\/span><\/p>\n\t\t\t\t<div class=\"thfaq-enable-comment-box thfaqf-hide\"> <p>\t\t<div class=\"thfaqf-comment-wrapper\">\n\t\t\t<form form method=\"post\" class=\"thfaqf-post-comment\">\n\t\t\t\t<p><input class=\"thfaqf-comment-box thfaqf-uname\" type=\"text\" placeholder=\"Name...\"name=\"user_name\"\/><\/p>\n\t\t\t\t<p class=\"threq-name\"><\/p>\n\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"thfaqf_comment\">\n\t\t\t\t<input type=\"hidden\" name=\"faq_id\" value=\"7041\">\n\t\t\t\t<input type=\"hidden\" name=\"faq_index\"value=\"2\">\n\t\t\t\t<p><textarea placeholder=\"Add a Comment...\"name=\"user_msg\" class=\"thfaqf-comment-box thfaqf-ucomment\"><\/textarea><\/p>\n\t\t\t\t<p class=\"threq-comment\"><\/p>\n\t\t\t\t<input type=\"hidden\" name=\"wp_thfaqc_nonce\" value=\"ff1d91cc99\"\/>\n\t\t    \t<p><button type=\"submit\" name=\"thfaqf_comment_submt\" class=\"thfaqf-submt-cmmt button primary is-xsmall\" onclick=\"submitFaqfComment(this)\">Send<\/button><\/p><p class=\"thfaqf-comment-validetion\"><\/p>\n\t\t    <\/form>\t\n\n\t\t    \t\t<\/div>\n\t\t <\/p><\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"log\"><\/div>\n\t\t<\/div>\n \t\t\t\t<div id=\"thfaqf-faq-item-7041_3\" class=\"thfaqf-faq-item  thfaqf-faq-item-7041    thfaqf-post-id-7041 thfaqf-count-dsply-setngs\" style=\"border-radius: 6px;\" >\n\t\t\t<div data-active_color=\"#ffffff\" class=\"thfaqf-faq-item-title\" style=\"border-width: 1px; border-style: solid; margin-bottom: -1px; background-color: #f3f3f3; border-color: #f3f3f3;\">\n \t\t\t\t<h4>\n \t\t\t\t\t \t\t\t\t<span class=\"thfaq-marker thfaqf-toggle-icon\" style=\" color: #007dcc;\"><\/span>\n \t\t\t\t\t<span class=\"thfaqf-title-text \" style=\" color: #000000;\" >What is the saturation efficiency of Symphony Venti-Cool&#039;s industrial evaporative air coolers?<\/span>\n \t\t\t\t<\/h4>\t\n\t\t\t<\/div>\n\t\t\t<div class=\"thfaqf-faq-item-content\" style=\"border-width: 1px; border-style: solid; background-color: #ffffff; border-color: #ffffff; color: #000000;\" >\n\t\t\t\t<p><span style=\"font-weight: 400\">Symphony Venti-Cool's LSV industrial systems achieve saturation efficiencies of 80\u201390% depending on the model and operating conditions. This high efficiency is a result of the thick CELdek pad specifications (100mm\u2013150mm) and precision water distribution systems used in the LSV range.<\/span><\/p>\n\t\t\t\t<div class=\"thfaq-enable-comment-box thfaqf-hide\"> <p>\t\t<div class=\"thfaqf-comment-wrapper\">\n\t\t\t<form form method=\"post\" class=\"thfaqf-post-comment\">\n\t\t\t\t<p><input class=\"thfaqf-comment-box thfaqf-uname\" type=\"text\" placeholder=\"Name...\"name=\"user_name\"\/><\/p>\n\t\t\t\t<p class=\"threq-name\"><\/p>\n\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"thfaqf_comment\">\n\t\t\t\t<input type=\"hidden\" name=\"faq_id\" value=\"7041\">\n\t\t\t\t<input type=\"hidden\" name=\"faq_index\"value=\"3\">\n\t\t\t\t<p><textarea placeholder=\"Add a Comment...\"name=\"user_msg\" class=\"thfaqf-comment-box thfaqf-ucomment\"><\/textarea><\/p>\n\t\t\t\t<p class=\"threq-comment\"><\/p>\n\t\t\t\t<input type=\"hidden\" name=\"wp_thfaqc_nonce\" value=\"ff1d91cc99\"\/>\n\t\t    \t<p><button type=\"submit\" name=\"thfaqf_comment_submt\" class=\"thfaqf-submt-cmmt button primary is-xsmall\" onclick=\"submitFaqfComment(this)\">Send<\/button><\/p><p class=\"thfaqf-comment-validetion\"><\/p>\n\t\t    <\/form>\t\n\n\t\t    \t\t<\/div>\n\t\t <\/p><\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"log\"><\/div>\n\t\t<\/div>\n \t\t\t\t<div id=\"thfaqf-faq-item-7041_4\" class=\"thfaqf-faq-item  thfaqf-faq-item-7041    thfaqf-post-id-7041 thfaqf-count-dsply-setngs\" style=\"border-radius: 6px;\" >\n\t\t\t<div data-active_color=\"#ffffff\" class=\"thfaqf-faq-item-title\" style=\"border-width: 1px; border-style: solid; margin-bottom: -1px; background-color: #f3f3f3; border-color: #f3f3f3;\">\n \t\t\t\t<h4>\n \t\t\t\t\t \t\t\t\t<span class=\"thfaq-marker thfaqf-toggle-icon\" style=\" color: #007dcc;\"><\/span>\n \t\t\t\t\t<span class=\"thfaqf-title-text \" style=\" color: #000000;\" >How does a HVAC system compare to evaporative cooling in locations with wet bulb temperatures above 28\u00b0C?<\/span>\n \t\t\t\t<\/h4>\t\n\t\t\t<\/div>\n\t\t\t<div class=\"thfaqf-faq-item-content\" style=\"border-width: 1px; border-style: solid; background-color: #ffffff; border-color: #ffffff; color: #000000;\" >\n\t\t\t\t<p><span style=\"font-weight: 400\">In locations where wet bulb temperatures consistently exceed 28\u00b0C during the cooling season - coastal Maharashtra, Kerala, coastal Tamil Nadu, West Bengal - a HVAC system provides more reliable temperature control because its performance is independent of outdoor humidity. However, HVAC systems cost significantly more to operate. Many facilities in these locations use evaporative cooling for the majority of the year and supplement with HVAC only during peak monsoon months.<\/span><\/p>\n\t\t\t\t<div class=\"thfaq-enable-comment-box thfaqf-hide\"> <p>\t\t<div class=\"thfaqf-comment-wrapper\">\n\t\t\t<form form method=\"post\" class=\"thfaqf-post-comment\">\n\t\t\t\t<p><input class=\"thfaqf-comment-box thfaqf-uname\" type=\"text\" placeholder=\"Name...\"name=\"user_name\"\/><\/p>\n\t\t\t\t<p class=\"threq-name\"><\/p>\n\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"thfaqf_comment\">\n\t\t\t\t<input type=\"hidden\" name=\"faq_id\" value=\"7041\">\n\t\t\t\t<input type=\"hidden\" name=\"faq_index\"value=\"4\">\n\t\t\t\t<p><textarea placeholder=\"Add a Comment...\"name=\"user_msg\" class=\"thfaqf-comment-box thfaqf-ucomment\"><\/textarea><\/p>\n\t\t\t\t<p class=\"threq-comment\"><\/p>\n\t\t\t\t<input type=\"hidden\" name=\"wp_thfaqc_nonce\" value=\"ff1d91cc99\"\/>\n\t\t    \t<p><button type=\"submit\" name=\"thfaqf_comment_submt\" class=\"thfaqf-submt-cmmt button primary is-xsmall\" onclick=\"submitFaqfComment(this)\">Send<\/button><\/p><p class=\"thfaqf-comment-validetion\"><\/p>\n\t\t    <\/form>\t\n\n\t\t    \t\t<\/div>\n\t\t <\/p><\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"log\"><\/div>\n\t\t<\/div>\n \t\t\t\t<div id=\"thfaqf-faq-item-7041_5\" class=\"thfaqf-faq-item  thfaqf-faq-item-7041    thfaqf-post-id-7041 thfaqf-count-dsply-setngs\" style=\"border-radius: 6px;\" >\n\t\t\t<div data-active_color=\"#ffffff\" class=\"thfaqf-faq-item-title\" style=\"border-width: 1px; border-style: solid; margin-bottom: -1px; background-color: #f3f3f3; border-color: #f3f3f3;\">\n \t\t\t\t<h4>\n \t\t\t\t\t \t\t\t\t<span class=\"thfaq-marker thfaqf-toggle-icon\" style=\" color: #007dcc;\"><\/span>\n \t\t\t\t\t<span class=\"thfaqf-title-text \" style=\" color: #000000;\" >Can Symphony Venti-Cool provide a site-specific performance estimate for my location?<\/span>\n \t\t\t\t<\/h4>\t\n\t\t\t<\/div>\n\t\t\t<div class=\"thfaqf-faq-item-content\" style=\"border-width: 1px; border-style: solid; background-color: #ffffff; border-color: #ffffff; color: #000000;\" >\n\t\t\t\t<p><span style=\"font-weight: 400\">Yes. Symphony Venti-Cool's technical team uses your city's IMD climate data to calculate expected evaporative cooling performance for your specific location and facility configuration. This analysis is included in the system design and quotation process and provides realistic temperature performance expectations based on actual climate data for your location.<\/span><\/p>\n\t\t\t\t<div class=\"thfaq-enable-comment-box thfaqf-hide\"> <p>\t\t<div class=\"thfaqf-comment-wrapper\">\n\t\t\t<form form method=\"post\" class=\"thfaqf-post-comment\">\n\t\t\t\t<p><input class=\"thfaqf-comment-box thfaqf-uname\" type=\"text\" placeholder=\"Name...\"name=\"user_name\"\/><\/p>\n\t\t\t\t<p class=\"threq-name\"><\/p>\n\t\t\t\t<input type=\"hidden\" name=\"action\" value=\"thfaqf_comment\">\n\t\t\t\t<input type=\"hidden\" name=\"faq_id\" value=\"7041\">\n\t\t\t\t<input type=\"hidden\" name=\"faq_index\"value=\"5\">\n\t\t\t\t<p><textarea placeholder=\"Add a Comment...\"name=\"user_msg\" class=\"thfaqf-comment-box thfaqf-ucomment\"><\/textarea><\/p>\n\t\t\t\t<p class=\"threq-comment\"><\/p>\n\t\t\t\t<input type=\"hidden\" name=\"wp_thfaqc_nonce\" value=\"ff1d91cc99\"\/>\n\t\t    \t<p><button type=\"submit\" name=\"thfaqf_comment_submt\" class=\"thfaqf-submt-cmmt button primary is-xsmall\" onclick=\"submitFaqfComment(this)\">Send<\/button><\/p><p class=\"thfaqf-comment-validetion\"><\/p>\n\t\t    <\/form>\t\n\n\t\t    \t\t<\/div>\n\t\t <\/p><\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"log\"><\/div>\n\t\t<\/div>\n \t\t<\/div>\t        <p class=\"thfaqf-display-faq-setngs hide-faqf-group\">\n\t\t\t\t<span class=\"thfaqf-pagination\">\n\t\t\t\t\t<span onclick=\"ThfaqPagination(this,'prev_page')\" ><a class=\"thfaqf-prev-page thfaqf-div-none\"  href=\"#\"><<<\/a><\/span>\t\n\t\t\t\t\t\t\t\t            <span class=\"thfaqf-page-no \" data-number=\"1\">\n\t\t\t           \t<a class=\"thfaqf-pnumber thfaq-ft current\"href=\"#\" onclick=\"ThfaqEachPage(this)\" >1<\/a>\n\t\t\t            <\/span>\n\t\t\t             \n\t\t        \t<span onclick=\"ThfaqPagination(this,'next_page')\" data-page_count=\"1\"><a class=\"thfaqf-next-page thfaqf-div-none\" href=\"#\">>><\/a><\/span>\t\n\t\t\t\t<\/span>\n\t\t\t\t<input type=\"hidden\" class=\"thfaqf-count-faq-number\"name=\"count_faq\" value=\"6\"\/>\n\t\t\t<\/p><br>\n            \t    <\/div>\n\t    <\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>The most common question about evaporative air coolers &#8211; from facility managers evaluating purchases to engineers designing industrial cooling systems is: how much will it actually cool? The answer depends on one environmental variable that most buyers have never heard of: the wet bulb temperature. Wet bulb temperature is the single most important factor determining [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7076,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[10],"tags":[],"class_list":["post-7039","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-cooler"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How Evaporative Air Cooler Efficiency Changes with Wet Bulb Temperature: A Practical Guide for India<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/symphonyventicool.com\/blogs\/how-evaporative-air-cooler-efficiency-changes-with-wet-bulb-temperature\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How Evaporative Air Cooler Efficiency Changes with Wet Bulb Temperature: A Practical Guide for India\" \/>\n<meta property=\"og:description\" content=\"The most common question about evaporative air coolers &#8211; from facility managers evaluating purchases to engineers designing industrial cooling systems is: how much will it actually cool? The answer depends on one environmental variable that most buyers have never heard of: the wet bulb temperature. 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