{"id":5832,"date":"2010-07-30T17:14:41","date_gmt":"2010-07-30T17:14:41","guid":{"rendered":"http:\/\/prairieswine.com\/rsc\/?p=5832"},"modified":"2011-12-02T15:12:49","modified_gmt":"2011-12-02T21:12:49","slug":"characterization-of-an-experimental-water-cooled-cover-for-sows","status":"publish","type":"post","link":"http:\/\/prairieswine.com\/rsc\/characterization-of-an-experimental-water-cooled-cover-for-sows\/","title":{"rendered":"Characterization of an experimental water-cooled cover for sows"},"content":{"rendered":"<p>Heat stress relief for sows in hot and humid climates remains a challenge. This study investigates a cooling method that is intended to enhance heat dissipation from sows. The experimental device was an aluminium cover (1.5\u00a0m long by 0.65\u00a0m wide and either 0.8\u00a0m or 0.95\u00a0m high) fitted with water-cooled pipes (25\u00a0mm diameter, spaced at 100\u00a0mm, 150\u00a0mm or 200\u00a0mm) and attached to the frame of the gestation sow crate. Performance was evaluated for cooling water temperatures of 15 or 20\u00a0\u00b0C under ambient summer conditions. Results showed the black-globe temperature (BGT) in the simulated sow-occupied zone (SOZ) was reduced by the addition of the aluminium canopy by 3\u00a0\u00b0C at 200\u00a0mm tube spacing and 37\u00a0\u00b0C ambient temperatures. The narrower the tube spacing the greater the cooling potential, with the 100\u00a0mm tube spacing yielding a SOZ BGT reduction of 6.1\u00a0\u00b0C at 39\u00a0\u00b0C ambient temperatures. The results demonstrated that the larger temperature difference between ambient air and inlet water the greater the effect of the heat exchange, and that water of 20\u00a0\u00b0C or cooler could be used as the cooling water supply. The cooling potential with a 0.8\u00a0m high canopy was greater than that at 0.95\u00a0m. It was concluded that the cooling efficiency of the water-cooled cover was affected by the inlet water, the surrounding environment, and the structure and size of the canopy.<\/p>\n<p>For more information the full article can be found at \u00a0<a href=\"http:\/\/www.sciencedirect.com\/science\/journal\/15375110\">http:\/\/www.sciencedirect.com\/science\/journal\/15375110<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Heat stress relief for sows in hot and humid climates remains a challenge. This study investigates a cooling method that is intended to enhance heat dissipation from sows. The experimental device was an aluminium cover (1.5\u00a0m long by 0.65\u00a0m wide and either 0.8\u00a0m or 0.95\u00a0m high) fitted with water-cooled pipes (25\u00a0mm diameter, spaced at 100\u00a0mm, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[8882,10100,1972,332,231,19644,23694,527,102,20007,14804,269,2318,2771,63,16262,23437,1533,104,96,51,15463,110,4644,20911,99,69,7749,12848,22151,2285],"class_list":["post-5832","post","type-post","status-publish","format-standard","hentry","category-environment","tag-al","tag-characterisation-of-an-experimental-water-cooled-cover-for-sows","tag-condition","tag-cooling","tag-cover","tag-dd","tag-dir","tag-efficiency","tag-gestation","tag-gh","tag-hal","tag-heat","tag-heat-stress","tag-iron","tag-performance","tag-pl","tag-science","tag-size","tag-sow","tag-sows","tag-space","tag-spacing","tag-stress","tag-summer","tag-t","tag-temperature","tag-water","tag-water-cooled","tag-water-cooled-sows","tag-water-supply","tag-yield"],"_links":{"self":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/5832","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/comments?post=5832"}],"version-history":[{"count":4,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/5832\/revisions"}],"predecessor-version":[{"id":10710,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/5832\/revisions\/10710"}],"wp:attachment":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/media?parent=5832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/categories?post=5832"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/tags?post=5832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}