{"id":2001,"date":"2025-07-10T16:40:40","date_gmt":"2025-07-10T08:40:40","guid":{"rendered":"https:\/\/www.dhtchamber.com\/?p=2001"},"modified":"2025-07-10T16:43:43","modified_gmt":"2025-07-10T08:43:43","slug":"energy-efficiency-guide-for-environmental-testing-chambers-how-to-reduce-long-term-operational-costs","status":"publish","type":"post","link":"https:\/\/www.dhtchamber.com\/fr\/energy-efficiency-guide-for-environmental-testing-chambers-how-to-reduce-long-term-operational-costs\/","title":{"rendered":"Guide de l'efficacit\u00e9 \u00e9nerg\u00e9tique pour les chambres d'essai environnemental : Comment r\u00e9duire les co\u00fbts op\u00e9rationnels \u00e0 long terme"},"content":{"rendered":"<div data-page-id=\"NqDPdHlaCoyLqYxBk3hchhGGnNg\" data-lark-html-role=\"root\" data-docx-has-block-data=\"true\">\n<div>\n<div>\n<div style=\"text-align: center;\" data-zone-id=\"0\" data-line-index=\"0\" data-line=\"true\"><strong>\u00c9crit par Robin<\/strong><\/div>\n<div data-zone-id=\"0\" data-line-index=\"0\" data-line=\"true\">\n<div>\n<div style=\"text-align: center;\" data-zone-id=\"0\" data-line-index=\"0\" data-line=\"true\"><strong>Ing\u00e9nieur principal, Doaho Test (DHT\u00ae)<\/strong><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"ace-line ace-line old-record-id-FoiedbCq5ovmNzxoKzKca0dYnSb\">According to ISO 50001 energy audit data, approximately 30% of laboratory electricity consumption is attributed to environmental testing equipment, with inefficient operation accounting for up to 45% of unnecessary energy usage (Source: T\u00dcV S\u00fcd 2024 Energy Efficiency Report). This not only increases operational costs but also impacts the long-term stability of equipment and the repeatability of test results.<\/div>\n<div class=\"ace-line ace-line old-record-id-HO1bdYCaNokwyfxefzJc2yGJnNh\">In modern reliability validation systems, <a href=\"https:\/\/www.dhtchamber.com\/fr\/category\/products\/\">the environmental testing chamber<\/a> plays a critical role in ensuring product quality and regulatory compliance by accurately simulating multi-dimensional environmental stresses such as temperature, humidity, vibration, and low pressure. However, as testing durations extend and test conditions become more complex, energy consumption is emerging as a significant concern.<\/div>\n<div class=\"ace-line ace-line old-record-id-Rx2TdM44MoXcBIxQevtcDPxUnxb\">This article explores how to effectively reduce energy usage and control testing costs without compromising test accuracy and reliability\u2014focusing on equipment selection, test program design, preventive maintenance, and system-level energy management.<\/div>\n<h3 class=\"heading-4\">Equipment Selection: Energy Savings Begin with Precise Technical Matching<\/h3>\n<div class=\"ace-line ace-line old-record-id-VGDDddjv4oW5ARxpgApcW6jPnbf\">Energy efficiency starts with selecting the right equipment. Over-specification and mismatched parameters are key contributors to unnecessary energy waste.<\/div>\n<h4 class=\"heading-5 ace-line old-record-id-NFp8d2YZpog32Dxq5enctoKZnxu\">The Real Value of Energy Efficiency Certifications<\/h4>\n<div class=\"ace-line ace-line old-record-id-Euuzd1ALwoEtxGx1zr9cnr06n8g\">Prioritize equipment that meets ISO 50001 Energy Management System and Superior Energy Performance (SEP) certifications\u2014not just basic CE or RoHS compliance. For example, a system with a Coefficient of Performance (COP) \u2265 3.2 can reduce energy consumption by 18%\u201325% compared to conventional units, resulting in significant long-term savings.<\/div>\n<h4 class=\"heading-5 ace-line old-record-id-Lpm6dn0y5oW8u2xEZZDcOjGRn3f\">Volume Matching Based on Engineering Calculations<\/h4>\n<div class=\"ace-line ace-line old-record-id-NA31dZsc8ocOXPxOTBlcbRC5nZe\">Many users select equipment based on the maximum specimen size, leading to excessive chamber volume and wasted air-conditioning energy. According to IEC 60068-2-1 \/ 2-38, the recommended formula is:<\/div>\n<blockquote class=\"old-record-id-RghhdTvvdoN92cxw8aIcRZOgngj\" data-type=\"quote_container\">\n<div class=\"ace-line ace-line old-record-id-CUXFdO9LooT2vixeRe5c5jeunEh\"><strong>Test chamber volume \u2265 3\u20135 \u00d7 total specimen volume<\/strong><\/div>\n<\/blockquote>\n<div class=\"ace-line ace-line old-record-id-P5jgdpIdkorrOdxEVSZclWWBnAm\">This ensures proper airflow circulation, uniform temperature and humidity distribution, and prevents energy loss due to over-conditioning.<\/div>\n<h4 class=\"heading-5 ace-line old-record-id-IHpVdZnWGoNScOxCe5Pc9eKPnAb\">Technological Optimization of Core Components<\/h4>\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-WEw2dhmJ5oCbzOxMOTWcdHiknhg\" data-list=\"bullet\">\n<div><strong>Variable-frequency <\/strong><strong>R\u00e9partir uniform\u00e9ment les charges thermiques : Optimiser le placement des \u00e9chantillons sur les \u00e9tag\u00e8res pour r\u00e9partir la chaleur plus uniform\u00e9ment, \u00e9vitant les pics thermiques soudains qui stressent le compresseur.<\/strong><strong> system<\/strong>: Equipped with a PID control algorithm to dynamically regulate refrigerant flow, reducing start-stop losses by over 40% and supporting energy-saving operation modes.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-V1fPdNNtxoL4qkxALeUcu2qwnkc\" data-list=\"bullet\">\n<div><strong>Double-layer vacuum-coated viewing windows<\/strong>: Offer over 70% lower thermal conductivity than single-pane glass, effectively minimizing heat transfer loss.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-Z54Fd06nJozwuxxI91lc8dxpnbg\" data-list=\"bullet\">\n<div><strong>Intelligent <\/strong><strong>standby<\/strong><strong> mode<\/strong>: Enables deep sleep mode when idle, with power consumption below 0.5W (compliant with IEC 62301:2011 Class A), ideal for overnight or intermittent test pauses.<\/div>\n<\/li>\n<\/ul>\n<h3 class=\"heading-4\">Testing Operation: Identifying Energy Control Points in Program Design<\/h3>\n<div class=\"ace-line ace-line old-record-id-Ld5LdWzqNourasxktIncc3D2njc\">In addition to hardware efficiency, the scientific design of test programs directly affects energy consumption.<\/div>\n<h4 class=\"heading-5 ace-line old-record-id-FNXWdhvC1oGS9sxoe0JcV7Dqntd\">Optimized Temperature Profile Design<\/h4>\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-YMl5dxbHyonWjPxIU8TcE8qBnRb\" data-list=\"bullet\">\n<div><strong>Staged temperature transitions<\/strong>: For large fluctuations (e.g., -40\u00b0C \u2194 80\u00b0C), split the profile into stages (e.g., -40\u00b0C \u2192 25\u00b0C \u2192 80\u00b0C) to reduce compressor load and avoid system overload.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-PamjdFyPXo3ZSsxy7KkcDtm2nCg\" data-list=\"bullet\">\n<div><strong>Rate control guidelines<\/strong>: Only use &gt;10\u00b0C\/min fast ramp rates when required by standards such as JESD22-A104B. For general reliability testing, ramp rates of 3\u20135\u00b0C\/min balance efficiency with performance.<\/div>\n<\/li>\n<\/ul>\n<h4 class=\"heading-5 ace-line old-record-id-TG42dnvIvoxBjdx5C37cpGwqnqe\">Practical Measures to Reduce Thermal Loss<\/h4>\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-E3ttdJIzKokG5oxfbyrcRQpzngP\" data-list=\"bullet\">\n<div><strong>Remote thermal monitoring<\/strong>: Use infrared thermal imaging tools (e.g., FLIR T540) instead of opening the chamber door to inspect samples. This avoids temperature spikes and reduces system compensation cycles.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-KtMldB3HToipsaxWxSKc9X7Fn3g\" data-list=\"bullet\">\n<div><strong>Air curtain<\/strong><strong> system<\/strong>: A 0.3 m\/s vertical airflow shield prevents ambient air intrusion when the door is opened, minimizing temperature and humidity disturbances.<\/div>\n<\/li>\n<\/ul>\n<h4 class=\"heading-5 ace-line old-record-id-ZGSJdTCS6oddjtxck0KcfXsgnoc\">Energy-Saving Humidity Control Techniques<\/h4>\n<div class=\"ace-line ace-line old-record-id-DaDudzUUsoxnAsxsNPxc82BLnAd\">Humidity regulation is often overlooked as a major energy drain. Traditional continuous humidification consumes both water and electricity and can lead to scale buildup and clogging.<\/div>\n<blockquote class=\"old-record-id-IGjbdpAsnoNSznxTXDCcYwMYn7b\" data-type=\"quote_container\">\n<div class=\"ace-line ace-line old-record-id-GiyzdczRwooY0yxY0EucKxk8ngg\">Replace with saturated steam injection, which activates only when humidity drops beyond \u00b13%RH of the setpoint. This method saves up to 50% water compared to mist systems and provides faster, more stable humidity control.<\/div>\n<\/blockquote>\n<h3 class=\"heading-4\">Preventive Maintenance: Ensuring Ongoing Energy Efficiency<\/h3>\n<div class=\"ace-line ace-line old-record-id-IAlbdK7T4oaXRtxo3KzcrqwAnpj\">Energy efficiency is not a one-time effort but relies on a well-maintained system throughout its lifecycle.<\/div>\n<h4 class=\"heading-5 ace-line old-record-id-Z7a0d3DVDoWvrixY1DfcIUtCnrg\">Monthly Checks<\/h4>\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-LJZZdwR7Hog3bAx5xL7cqm5Rneh\" data-list=\"bullet\">\n<div><strong>Condenser<\/strong><strong> fin cleaning<\/strong>: Ensure dust buildup is under 0.5mm to maintain efficient heat exchange.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-JuvwdshsdoHFEExlQ2wcyzrln6f\" data-list=\"bullet\">\n<div><strong>Door seal integrity test<\/strong>: Use a 0.1mm feeler gauge to check airtightness, preventing thermal leakage.<\/div>\n<\/li>\n<\/ul>\n<h4 class=\"heading-5 ace-line old-record-id-KhzRd5IO8o5uVYxpSDzcF1Rlnxh\">Quarterly Maintenance<\/h4>\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-E3nMdPeNuo66jExtJaEcLeKwnqc\" data-list=\"bullet\">\n<div><strong>Calibration of <\/strong><strong>Pt100<\/strong><strong> temperature sensors<\/strong>: Replace any with deviations exceeding \u00b10.3\u00b0C to prevent overcompensation and energy waste.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-NvZTdCYT7oZ6sxxzu35ckRx3nuc\" data-list=\"bullet\">\n<div><strong>Compresseur<\/strong><strong> lubricant replacement<\/strong>: Use high-performance oil with a viscosity index (VI) \u2265 160 to reduce mechanical wear and energy consumption.<\/div>\n<\/li>\n<\/ul>\n<h4 class=\"heading-5 ace-line old-record-id-RiOvdP5xBo3uIZxO5blct2FOnmc\">Structural Optimization Opportunities<\/h4>\n<div class=\"ace-line ace-line old-record-id-RmhGduOSGoWJbixkJawc3etIncd\">For large <a href=\"https:\/\/www.dhtchamber.com\/fr\/category\/products\/environmental-chamber\/walk-in-test-chamber\/\">Walk-in Chambers<\/a>, consider replacing conventional polyurethane insulation with VIP (Vacuum Insulated Panels). This reduces the thermal conductivity from 0.022 W\/(m\u00b7K) to 0.007 W\/(m\u00b7K)\u2014a 300% improvement in insulation performance, substantially lowering heat loss.<\/div>\n<h3 class=\"heading-4\">System-Level Energy Management: Building a Digital Efficiency Framework<\/h3>\n<div class=\"ace-line ace-line old-record-id-FmfrdOGcMop11MxWNFfcI21bnVb\">Advanced energy-saving strategies extend beyond individual equipment, requiring system-level optimization and intelligent energy orchestration.<\/div>\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-Gq5TdWMU8o7x1SxePfPcTrupnIg\" data-list=\"bullet\">\n<div><strong>Sub-metering systems<\/strong>: Monitor energy consumption by subsystem (cooling, humidification, lighting, fans) to identify high-consumption areas.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-NdMgdu2PNoE9jyx8XfWcpunmnue\" data-list=\"bullet\">\n<div><strong>EMS (Energy Management System) integration<\/strong>: Connect with MES\/LIMS platforms to link testing schedules with real-time energy data, enabling predictive energy planning and load optimization.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-EmELdoKm2otqOexiBrQcTX8ZnSe\" data-list=\"bullet\">\n<div><strong>AI-driven adaptive load control:<\/strong> Use machine learning algorithms to forecast test loads and dynamically adjust power output for on-demand energy delivery.<\/div>\n<\/li>\n<\/ul>\n<h3 class=\"heading-4 ace-line old-record-id-Tnqmdn2CHoh9JcxzidRc0EAXnwf\">Conclusion: Energy Efficiency Is an Extension of Precision Environmental Control<\/h3>\n<div class=\"ace-line ace-line old-record-id-ImqbdisY0onwsNxB4LmcIJNenoe\">True energy savings should never come at the cost of test accuracy. Rather, they represent a deeper command of environmental simulation technology and holistic system design.<\/div>\n<div class=\"ace-line ace-line old-record-id-SRFYdPfezowa9mxzHBVchJn8nEc\">When companies incorporate energy consumption metrics of <a href=\"https:\/\/www.dhtchamber.com\/fr\/category\/products\/environmental-chamber\/\">environmental testing chambers<\/a> into their Life Cycle Cost (LCC) models, they will realize:<\/div>\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-NJisdtXkBotKj0xspr2cQpQ0npf\" data-list=\"bullet\">\n<div>Reducing energy usage by 1 kWh can improve test data confidence by 0.2% due to increased system stability.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-EahuddHVPolA2axDH9zc5EEnn9e\" data-list=\"bullet\">\n<div>Cutting 1 ton of CO\u2082 emissions can decrease equipment failure rates by 3.7%, thanks to better thermal stress control.<\/div>\n<\/li>\n<\/ul>\n<div class=\"ace-line ace-line old-record-id-HMPdd2nTgochlDx0R0Jc9hjfnof\">Energy efficiency is not just about cost savings\u2014it\u2019s a professional commitment to precise environmental replication and sustainable, reliable testing.<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Written by Robin Senior Engineer, Doaho Test (DHT\u00ae) According to ISO 50001 energy audit data, approximately 30% of laboratory electricity consumption is attributed to environmental testing equipment, with inefficient operation accounting for up to 45% of unnecessary energy usage (Source: T\u00dcV S\u00fcd 2024 Energy Efficiency Report). This not only increases operational costs but also impacts [&hellip;]<\/p>","protected":false},"author":1,"featured_media":1988,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6,11],"tags":[],"class_list":["post-2001","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-industry-solutions"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dhtchamber.com\/fr\/wp-json\/wp\/v2\/posts\/2001","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dhtchamber.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dhtchamber.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dhtchamber.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dhtchamber.com\/fr\/wp-json\/wp\/v2\/comments?post=2001"}],"version-history":[{"count":0,"href":"https:\/\/www.dhtchamber.com\/fr\/wp-json\/wp\/v2\/posts\/2001\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dhtchamber.com\/fr\/wp-json\/wp\/v2\/media\/1988"}],"wp:attachment":[{"href":"https:\/\/www.dhtchamber.com\/fr\/wp-json\/wp\/v2\/media?parent=2001"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dhtchamber.com\/fr\/wp-json\/wp\/v2\/categories?post=2001"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dhtchamber.com\/fr\/wp-json\/wp\/v2\/tags?post=2001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}