{"id":964,"date":"2021-01-05T12:53:25","date_gmt":"2021-01-05T12:53:25","guid":{"rendered":"https:\/\/oversluizen.com\/hr-motorwater\/"},"modified":"2021-07-15T13:03:04","modified_gmt":"2021-07-15T13:03:04","slug":"hr-motorwater","status":"publish","type":"post","link":"https:\/\/oversluizen.com\/en\/hr-motorwater\/","title":{"rendered":"HR motorwater"},"content":{"rendered":"<h2>Project: Heat recovery out of engine coolant<\/h2>\n<p>On board ships and superyachts it is common practice to dump all generated heat that is released into the seawater, despite the great need for heat on board. Oversluizen has very compact exchangers that offer a wide variety of applications, without having to compromise on back pressure in the cooling water flow.<\/p>\n<h2>Project: Central heating on board<\/h2>\n<p>The design question for this project was to calculate a heat exchanger that can be used for a wide range of engines and is suitable for preheating the internal central heating system on board.<\/p>\n<p>Data:<\/p>\n<ul>\n<li>Engine: John Deere 6135AFM85 @1500 rpm and 1800 rpm.<\/li>\n<li>Request: Best heat performance \u2013 size ratio.<\/li>\n<li>Conditions:\n<ul>\n<li>Central heating temperatures varying between 40 and 50 degrees.<\/li>\n<li>Volume flow between 40 and 160 l\/min.<\/li>\n<li>Central heating system: 100% water.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Scope Oversluizen:<\/p>\n<ul>\n<li>Heat recovery heat exchanger<\/li>\n<li>Special welded couplings<\/li>\n<\/ul>\n<p><strong>Engine data @ 1500 rpm 275kW:<\/strong><br \/>\n\n<table id=\"tablepress-7\" class=\"tablepress tablepress-id-7\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Engine coolant<\/th><th class=\"column-2\">&nbsp;<\/th><th class=\"column-3\">Central heating circuit<\/th><th class=\"column-4\">&nbsp;<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Heat generation at 100% load<\/td><td class=\"column-2\">277 kW<\/td><td class=\"column-3\">Volume flow<\/td><td class=\"column-4\">40 l\/min<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Volume flow (50\/50)<\/td><td class=\"column-2\">267 l\/min<\/td><td class=\"column-3\"><\/td><td class=\"column-4\">80 l\/min<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Maximum allowed pressure drop<\/td><td class=\"column-2\">< 0.05 bar<\/td><td class=\"column-3\"><\/td><td class=\"column-4\">120 l\/min<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Thermostat start to open<\/td><td class=\"column-2\">72 \u00b0C<\/td><td class=\"column-3\"><\/td><td class=\"column-4\">160 l\/min<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">Thermostat fully opened<\/td><td class=\"column-2\">92 \u00b0C<\/td><td class=\"column-3\">Maximum allowed pressure drop<\/td><td class=\"column-4\">Tbd<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">Calculation temperature <\/td><td class=\"column-2\">90 \u00b0C<\/td><td class=\"column-3\">CH temperature exchanger IN<\/td><td class=\"column-4\">40 \u00b0C \/ 50 \u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/p>\n<h2>Very small size<\/h2>\n<p>The most optimal cooler, given the size and efficiency, is the GLH cooler. It has been developed for very low resistances with high efficiency. The resistance in the engine water circuit remains below 0.05 bar at all times, despite the fact that up to 180 kW can be extracted during operation.<\/p>\n<p>sizes GLH40-20:<\/p>\n<ul>\n<li>height: 278mm<\/li>\n<li>width: 123mm<\/li>\n<li>thickness: 83mm (excl. connections)<\/li>\n<li>weight: 3,4 kg<\/li>\n<\/ul>\n\n<table id=\"tablepress-8\" class=\"tablepress tablepress-id-8\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Central heating temperature = 40\u00b0C<\/th><th class=\"column-2\">&nbsp;<\/th><th class=\"column-3\">Central heating temperature = 50\u00b0C<\/th><th class=\"column-4\">&nbsp;<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"row-2\">\n\t<td class=\"column-1\">40 l\/min<\/td><td class=\"column-2\">78\u00b0C (98 kW)<\/td><td class=\"column-3\">40 l\/min<\/td><td class=\"column-4\">78\u00b0C (80 kW)<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">80 l\/min<\/td><td class=\"column-2\">65\u00b0C (141 kW)<\/td><td class=\"column-3\">80 l\/min<\/td><td class=\"column-4\">70\u00b0C (114 kW)<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">120 l\/min<\/td><td class=\"column-2\">59\u00b0C (164 kW)<\/td><td class=\"column-3\">120 l\/min<\/td><td class=\"column-4\">66\u00b0C (134 kW)<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">160 l\/min<\/td><td class=\"column-2\">56\u00b0C (180 kW)<\/td><td class=\"column-3\">160 l\/min<\/td><td class=\"column-4\">63\u00b0C (145 kW)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n<h2>Additional thermostat<\/h2>\n<p>To prevent that the cooling water is always pressed through the box cooler, an extra thermostat is essential for proper operation. The thermostat must be interpreted to match the engine water thermostat. In this way it will only open when the central heating system does not decrease sufficiently.<\/p>\n<p><strong>Schema<\/strong><\/p>\n<p><img data-aspectratio=\"1000\/1018\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" class=\"img-responsive alignnone wp-image-951 size-full lazyload\" data-src=\"https:\/\/oversluizen.com\/wp-content\/uploads\/2021\/01\/OTE_Heat-recovery.jpg\" alt=\"Hr warmte\" width=\"1000\" height=\"1018\" data-srcset=\"https:\/\/oversluizen.com\/wp-content\/uploads\/2021\/01\/OTE_Heat-recovery.jpg 1000w, https:\/\/oversluizen.com\/wp-content\/uploads\/2021\/01\/OTE_Heat-recovery-295x300.jpg 295w, https:\/\/oversluizen.com\/wp-content\/uploads\/2021\/01\/OTE_Heat-recovery-768x782.jpg 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><noscript><img class=\"img-responsive alignnone wp-image-951 size-full\" src=\"https:\/\/oversluizen.com\/wp-content\/uploads\/2021\/01\/OTE_Heat-recovery.jpg\" alt=\"Hr warmte\" width=\"1000\" height=\"1018\" srcset=\"https:\/\/oversluizen.com\/wp-content\/uploads\/2021\/01\/OTE_Heat-recovery.jpg 1000w, https:\/\/oversluizen.com\/wp-content\/uploads\/2021\/01\/OTE_Heat-recovery-295x300.jpg 295w, https:\/\/oversluizen.com\/wp-content\/uploads\/2021\/01\/OTE_Heat-recovery-768x782.jpg 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/noscript><\/p>\n<p><strong>Brand Independent<\/strong><br \/>\nE.g.: Deutz, Volvo, Caterpillar, Mitsubishi, Baudouin, John Deere, Cummins, Iveco, MTU<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Project: Heat recovery out of engine coolant On board ships &#8230;<\/p>\n<p><a class=\"webinweb-read-more-link\" href=\"https:\/\/oversluizen.com\/en\/hr-motorwater\/\">Lees meer<\/a><\/p>\n","protected":false},"author":1,"featured_media":1339,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.3 - 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