{"id":7888,"date":"2025-03-18T11:23:28","date_gmt":"2025-03-18T02:23:28","guid":{"rendered":"https:\/\/www.dry-fog.com\/en\/?post_type=cases&#038;p=7888"},"modified":"2025-12-11T12:17:07","modified_gmt":"2025-12-11T03:17:07","slug":"nozzle-ind-cool-004","status":"publish","type":"cases","link":"https:\/\/www.dry-fog.com\/en\/projects-technology\/cases\/nozzle-ind-cool-004\/","title":{"rendered":"Cooling Data Centers with Fine Fog: Preventing Short Circuits for Stable Summer Operations"},"content":{"rendered":"<section>\n<p><!-- \u30b7\u30e7\u30fc\u30c8\u52d5\u753b\u30ea\u30f3\u30af --><\/p>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<p style=\"font-size: 1.2rem;line-height:1.6rem\"><a href=\"https:\/\/www.youtube.com\/shorts\/j0o3kx8FBqg\" style=\"color: #E60023\" target=\"_blank\" rel=\"noopener\">\u25b6 Watch this case in a short video<\/a><\/p>\n<\/div>\n<p><!-- Key Reasons for Implementation \u2605\u7b87\u6761\u66f8\u304d --><\/p>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">Key Reasons for Implementation<\/h3>\n<\/div>\n<ul style=\"list-style-type: disc;margin-left:2.8rem;font-size: 1rem;line-height:1.6rem\">\n<div style=\"margin-bottom:0.8rem\">\n<li>Our proposal provided a retrofit solution, efficiently <span style=\"font-weight:bold;font-size: 1rem\">cooling outdoor air-conditioning units<\/span> without requiring major modifications to the existing air conditioning system.<\/li>\n<\/div>\n<\/ul>\n<\/div>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-top:5rem;margin-bottom:3rem;width:100%;border-bottom:1px solid #E9E9E9\"><\/div>\n<\/div>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"float: left;padding-top:1.5rem;padding-left: 2rem\">\n<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/call-1.jpg\" alt=\"\" width=\"330\" height=\"296\" class=\"alignleft size-medium wp-image-5969\" \/>\n<\/div>\n<div style=\"float: right;margin-top: 4rem;margin-right: 3%\">\n<ul style=\"list-style-type: none;margin-left:0rem;font-size: 1.2rem;font-weight: bold;line-height:1.6rem\">\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/check.svg) no-repeat 0 0;background-size:auto 20px;padding-left: 30px\">\n<li>Not sure which product is right for you?<\/li>\n<\/div>\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/check.svg) no-repeat 0 0;background-size:auto 20px;padding-left: 30px\">\n<li>Curious about the total cost?<\/li>\n<\/div>\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/check.svg) no-repeat 0 0;background-size:auto 20px;padding-left: 30px\">\n<li>Wondering where to start?<\/li>\n<\/div>\n<div style=\"margin-bottom:0.8rem;font-size: 0.8rem;font-weight: bold;padding-left: 30px\">\n<li>We\u2019re here to help \u2013 reach out with any questions.<\/li>\n<\/div>\n<\/ul>\n<div style=\"text-align:center;margin-top:2rem;margin-bottom: 2rem\">\n<a style=\"margin-bottom:1rem;margin-left:2rem;justify-content: center;align-items: center;padding: 0.5rem 4rem;color: #fff;font-weight: 500;font-size:1.2rem;width:auto;background: #0C9B6F;border-radius: 30px\" href=\"https:\/\/www.dry-fog.com\/en\/contact\/\" target=\"_blank\" rel=\"noopener\">Contact Us<\/a>\n<\/div>\n<\/div>\n<div style=\"clear:both\"><\/div>\n<\/div>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-top:0rem;margin-bottom:3rem;width:100%;border-bottom:1px solid #E9E9E9\"><\/div>\n<\/div>\n<p><!-- Challenges Faced by the Customer\u3000\u2605p\uff5e\/p\u3067\u6bb5\u843d\u533a\u5207\u308a --><\/p>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">Challenges Faced by the Customer<\/h3>\n<\/div>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">A data center was managing indoor air conditioning, including the server rooms, with over 200 rooftop outdoor units. <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2025\/03\/sol-cool-save-datacenter-image_01.jpg\" alt=\"\" width=\"1200\" height=\"655\" class=\"alignleft size-full wp-image-5972\" \/><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2025\/03\/sol-cool-save-datacenter-image_02.jpg\" alt=\"\" width=\"1200\" height=\"655\" class=\"alignleft size-full wp-image-5972\" \/><\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">However, in recent years, rising summer temperatures caused the air conditioning system to struggle, particularly on extremely hot days when outdoor temperatures exceeded the design specifications. Under these conditions, the outdoor units, packed closely together, experienced problems such as <span style=\"font-weight:bold;font-size: 1rem\">short circuits<\/span><sup style=\"vertical-align: super;font-size: smaller;line-height: 1\">*1<\/sup>, <span style=\"font-weight:bold;font-size: 1rem\">thermal trips<\/span><sup style=\"vertical-align: super;font-size: smaller;line-height: 1\">*2<\/sup>, and <span style=\"font-weight:bold;font-size: 1rem\">high-pressure cuts<\/span><sup style=\"vertical-align: super;font-size: smaller;line-height: 1\">*3<\/sup>.\n<\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">\n*1 Short circuit:<br \/>\nThis phenomenon occurs when the hot air discharged from the outdoor units is recirculated into the intake, reducing cooling efficiency and leading to overheating and increased mechanical load.<br \/>\n*2 Thermal trip:<br \/>\nWhen excessive heat builds up around the outdoor units, motors and compressors overheat, triggering thermal relays\u2014a protective mechanism that shuts down operations to prevent damage.<br \/>\n*3 High-pressure cut:<br \/>\nThis phenomenon occurs when the refrigerant inside the units cannot be sufficiently cooled due to short circuits or high temperatures, causing pressure to rise and, when it reaches its limit, forcibly stopping the operation.\n<\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\"><span style=\"font-weight:bold;font-size: 1rem\">When the heat exchange efficiency of the outdoor units declined, ambient conditions in the server rooms exceeded the set temperatures, placing excessive stress on the servers and affecting their processing speed.<\/span><br \/>\nIn emergency situations caused by short circuits or thermal trips, the data center staff had to <span style=\"font-weight:bold;font-size: 1rem\">manually spray water onto all the outdoor units using hoses to cool them down<\/span>. These issues made it increasingly difficult to maintain stable operations in the server rooms, where strict temperature and humidity control is crucial.<\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">Additionally, users of the data center began to strongly demand improvements, raising concerns that the situation could escalate into compensation issues.\n<\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">At this data center, which was already in operation, making significant modifications to the existing air conditioning system was challenging. Seeking an effective cooling system that could be retrofitted, the customer approached us for a solution.<\/p>\n<\/div>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-top:5rem;margin-bottom:3rem;width:100%;border-bottom:1px solid #E9E9E9\"><\/div>\n<\/div>\n<p><!-- Proposals from IKEUCHI\u3000\u2605p\uff5e\/p\u3067\u6bb5\u843d\u533a\u5207\u308a \u2605\u753b\u50cfURL\u3092\u201d\u3053\u3053\u306bURL\"\u306e\u4f4d\u7f6e\u306b\u5165\u308c\u308b\u3002\u753b\u50cf\u30b5\u30a4\u30ba\u306f\u5143\u548c\u6587HTML\u53c2\u8003\u3000--><\/p>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">Proposals from IKEUCHI<\/h3>\n<\/div>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">\nWe proposed our COOLKIT for cooling A\/C outdoor units.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2025\/03\/sol-cool-save-datacenter-image_03.jpg\" alt=\"\" width=\"1200\" height=\"655\" class=\"alignleft size-full wp-image-5972\" \/><\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">This unit utilizes multiple specialized spray nozzles installed at the air intake of the outdoor units to <span style=\"font-weight:bold;font-size: 1rem\">cool the intake air by leveraging the heat of vaporization from the fine mist sprayed<\/span>.<\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">The spray droplets are extremely fine, allowing for efficient cooling while significantly reducing water consumption compared to conventional watering nozzles. The minimal drainage also prevents the surrounding area from becoming excessively wet.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.dry-fog.com\/en\/wp-content\/uploads\/sites\/3\/2025\/03\/sol-cool-save-datacenter-image_05.jpg\" alt=\"\" width=\"1200\" height=\"655\" class=\"alignleft size-full wp-image-5972\" \/><\/p>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">Additionally, the system contributes to improving PUE<sup style=\"vertical-align: super;font-size: smaller;line-height: 1\">*4<\/sup> (Power Usage Effectiveness), a key metric for evaluating energy efficiency, and is expected to enhance the overall assessment of the data center.<br \/>\n    <br \/>\n*4 PUE: A ratio of IT equipment energy consumption to total facility energy usage. A lower value indicates greater efficiency.<\/small>\n<\/p>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-top:5rem;margin-bottom:3rem;width:100%;border-bottom:1px solid #E9E9E9\"><\/div>\n<\/div>\n<p><!-- Benefits Achieved\u3000\u2605\u672c\u6587\u6bb5\u843d\u3068\u7b87\u6761\u66f8\u304d\u3000--><\/p>\n<div style=\"max-width:824px;margin-left:auto;margin-right:auto\">\n<div style=\"margin-bottom:0.8rem;background:url(https:\/\/www.dry-fog.com\/jp\/wp-content\/uploads\/sites\/2\/2024\/10\/10px-45px.svg) no-repeat 0 0;background-size:auto 30px;padding-left: 20px\">\n<h3 style=\"font-size: 1.5rem\">Benefits Achieved<\/h3>\n<\/div>\n<p style=\"list-style-type: disc;margin-left:1.2rem;font-size: 1rem;line-height:1.6rem\">\n<ul style=\"list-style-type: disc;margin-left:2.8rem;font-size: 1rem;line-height:1.6rem\">\n<div style=\"margin-bottom:0.8rem\">\n<li>Prevented short circuits and thermal trips in outdoor units during summer, ensuring stable and reliable operation.<\/li>\n<\/div>\n<div style=\"margin-bottom:0.8rem\">\n<li>Reduced the cooling energy load of the data center.<\/li>\n<\/div>\n<\/ul>\n<\/div>\n<\/section>\n","protected":false},"featured_media":0,"template":"","cat_cases":[541],"tag_cases":[407,542,533],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/cases\/7888"}],"collection":[{"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/cases"}],"about":[{"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/types\/cases"}],"wp:attachment":[{"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/media?parent=7888"}],"wp:term":[{"taxonomy":"cat_cases","embeddable":true,"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/cat_cases?post=7888"},{"taxonomy":"tag_cases","embeddable":true,"href":"https:\/\/www.dry-fog.com\/en\/wp-json\/wp\/v2\/tag_cases?post=7888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}