{"id":3414,"date":"2021-04-12T11:38:48","date_gmt":"2021-04-12T04:38:48","guid":{"rendered":"https:\/\/dbm.com.vn\/product\/uncategorized\/water-to-air-heat-exchanger\/"},"modified":"2021-06-11T13:47:16","modified_gmt":"2021-06-11T06:47:16","slug":"water-to-air-heat-exchanger","status":"publish","type":"product","link":"https:\/\/dbm.com.vn\/en\/product\/water-to-air-heat-exchanger\/","title":{"rendered":"Water to Air Heat Exchangers"},"content":{"rendered":"<p>(Water to Air Heat Exchangers)<\/p>\n<p><em><span style=\"text-decoration: underline;\"> <span class=\"fontstyle0\">Key features:<\/span><\/span><\/em><\/p>\n<ul>\n<li>\u00a0<span class=\"fontstyle0\">A self-contained bench-top unit for demonstration heat exchangers \u2013 designed for teaching<\/span><\/li>\n<li><span class=\"fontstyle0\">Includes one heat exchanger as standard for a full range of experiments<\/span><\/li>\n<li><span class=\"fontstyle0\">Two additional heat exchangers available for extended experiments<\/span><\/li>\n<li><span class=\"fontstyle0\">Heat exchangers have schematic diagrams to help students understand how they work and how to connect them<\/span><\/li>\n<li><span class=\"fontstyle0\">Simple and safe to use \u2013 quick release and self-sealing fittings allow students to connect and change the heat exchangers quickly and easily \u2013 needs no tools <\/span><\/li>\n<li><span class=\"fontstyle0\">Clear digital displays of all readings \u2013 you do not need a computer to work it or take readings<\/span><\/li>\n<\/ul>\n<p><em><span style=\"text-decoration: underline;\">Description:\u00a0<\/span><\/em><\/p>\n<ul>\n<li>\u00a0<span class=\"fontstyle0\">The TecQuipment Water to Air Heat Exchanger mirrors air heating and water cooling applications. It fits on a bench top and includes a hot water supply, a cooling air duct<br \/>\nand all instruments needed for tests on cross-flow heat exchangers. The heat output of the design produces good results without greatly affecting the temperature of a reasonable size classroom or laboratory<\/span><\/li>\n<li><span class=\"fontstyle0\">Its hot water system includes a tank with a PID controlled electric heater for stable temperatures, a pump and tank level indicators. An electrically operated valve opens to let water in to fill the tank. The tank has protection in<br \/>\ncase of over temperature, low water level and overfilling. A precision needle valve and flow meter control and measure the water flow rate<\/span><\/li>\n<li><span class=\"fontstyle0\">The cooling air passes down a vertical duct containing an orifice plate which connects to a differential pressure transducer. The air then passes through a fixed speed centrifugal fan and along a horizontal duct containing the heat exchanger. The air exits the duct through a handoperated slide-valve. Students use the orifice and valve to measure and control the air flow.<\/span><\/li>\n<li><span class=\"fontstyle0\">Thermocouples at the water connectors and in the air duct measure hot and cold inlet and outlet fluid stream temperatures. Clear, multiline digital displays show the temperatures, water flow rate and orifice pressure.<\/span><\/li>\n<li><span class=\"fontstyle0\">For safety and simplicity, the heat exchangers have self-sealing quick connectors for their water supply. Quick release clamps and locating dowels hold the heat exchanger in the air duct. Students need no tools to fit and<br \/>\nchange the heat exchangers.<\/span><\/li>\n<li><span class=\"fontstyle0\">Each heat exchanger includes a mimic diagram that attaches to a space on the main unit panel. The diagram gives useful information to the student, including how to connect the heat exchanger. All the heat exchangers have been tested to 20 bar to ensure there is no risk of leaks.<\/span><\/li>\n<\/ul>\n<p><em><span style=\"text-decoration: underline;\">Learning Outcomes:<\/span><\/em><\/p>\n<ul>\n<li>\u00a0<span class=\"fontstyle0\">Heat transfer between fluids through a solid wall<\/span><\/li>\n<li><span class=\"fontstyle0\">Energy balance and efficiency <\/span><\/li>\n<li><span class=\"fontstyle0\">Finding the heat transfer coefficient and Log Mean Temperature Difference (LMTD)<\/span><\/li>\n<li><span class=\"fontstyle0\">Effect of water temperature (the \u2018driving force\u2019)<\/span><\/li>\n<li><span class=\"fontstyle0\">Comparing actual midpoint water temperature with the average based on overall inlet and outlet temperatures<\/span><\/li>\n<li><span class=\"fontstyle0\">Comparing temperature change between upstream and downstream tube banks<\/span><\/li>\n<li><span class=\"fontstyle0\">Comparison of heat exchangers of different construction and heat transfer area (needs optional TD1007a and TD1007b)<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Product Code: TD1007<\/p>\n","protected":false},"featured_media":3196,"template":"","meta":[],"product_cat":[31,884],"product_tag":[],"_links":{"self":[{"href":"https:\/\/dbm.com.vn\/en\/wp-json\/wp\/v2\/product\/3414"}],"collection":[{"href":"https:\/\/dbm.com.vn\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/dbm.com.vn\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dbm.com.vn\/en\/wp-json\/wp\/v2\/media\/3196"}],"wp:attachment":[{"href":"https:\/\/dbm.com.vn\/en\/wp-json\/wp\/v2\/media?parent=3414"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/dbm.com.vn\/en\/wp-json\/wp\/v2\/product_cat?post=3414"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/dbm.com.vn\/en\/wp-json\/wp\/v2\/product_tag?post=3414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}