{"id":3436,"date":"2010-07-27T10:59:00","date_gmt":"2010-07-27T09:59:00","guid":{"rendered":"https:\/\/worldfishing.nfdtesting.uk\/icefish-conference\/2010\/07\/27\/industrial-flow-ice-generators-for-russian-trawler\/"},"modified":"2026-08-26T23:42:20","modified_gmt":"2026-08-26T22:42:20","slug":"industrial-flow-ice-generators-for-russian-trawler","status":"publish","type":"post","link":"https:\/\/www.worldfishing.net\/icefish-conference\/news\/industry-news\/industrial-flow-ice-generators-for-russian-trawler\/","title":{"rendered":"Industrial flow-ice generators for Russian trawler"},"content":{"rendered":"<p>The vessel <em>Desert Diamond<\/em> discharges its cargo either in Port Elizabeth or Cape Town, depending on the fishing.<\/p>\n<p>Each of the packages, designed and built by South African-headquartered PAM Refrigeration in Killarney Gardens, produces six tonnes of flow ice of 20% concentration per hour, to pre-chill and hold the freshly landed fish before being frozen in on-board plate freezers.<span> <\/span><\/p>\n<p>The trawler has the capacity to freeze 170 tonnes of fresh fish every 24 hours and previously used a refrigerated sea water (RSW) system to pre-chill the fresh fish, but this proved inadequate and the owners opted to install the Pam Flow Ice Generators to increase production.<\/p>\n<p>The packages are fitted with Grasso G series screw compressors, directly coupled to 75kw motors, operating at 2800 rpm and have a sea water shell and tube condenser. The screw compressor is done with thermo siphon oil cooling, adding to reliability and low maintenance.<\/p>\n<p>The refrigeration capacity of each screw package is 225kW at -10\/+35\u00b0C.<\/p>\n<p>Liquid ammonia is fed through a low pressure receiver system (LPR), specifically designed by PAM for the application, to pre-cool sea water to -1\u00b0C before entering the six Flow Ice generators.<span> <\/span> The internal scrappers of the horizontally mounted ice generators are each driven by a 0.5kw motor.<\/p>\n<p>A single pump on each package, driven by a 2.2kw motor, sucks sea water from a header which also supplies the condenser and pumps the flow ice slurry to the pre-chilling tanks, which are located on the rear end of the trawler.<\/p>\n<p>The compact package measures 2.4 x 2.4 x 2.4m and has a small charge of only 60kg of ammonia.<span> <\/span> The packages are installed in an enclosure at mid ship on deck.<\/p>\n<p>Over the past 24 months, PAM claims to have delivered about 10 similar design systems to different Russian trawlers operation in Mauritania, Namibia and South Africa.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PAM Refrigeration recently delivered two unique packaged, ammonia, ice generators to Cape Town harbour for installation on a Russian trawler, fishing in South African waters for horse mackerel.<\/p>\n","protected":false},"author":2,"featured_media":3437,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9],"tags":[],"sponsor":[],"class_list":["post-3436","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.worldfishing.net\/icefish-conference\/wp-json\/wp\/v2\/posts\/3436","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.worldfishing.net\/icefish-conference\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.worldfishing.net\/icefish-conference\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.worldfishing.net\/icefish-conference\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.worldfishing.net\/icefish-conference\/wp-json\/wp\/v2\/comments?post=3436"}],"version-history":[{"count":1,"href":"https:\/\/www.worldfishing.net\/icefish-conference\/wp-json\/wp\/v2\/posts\/3436\/revisions"}],"predecessor-version":[{"id":3438,"href":"https:\/\/www.worldfishing.net\/icefish-conference\/wp-json\/wp\/v2\/posts\/3436\/revisions\/3438"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.worldfishing.net\/icefish-conference\/wp-json\/wp\/v2\/media\/3437"}],"wp:attachment":[{"href":"https:\/\/www.worldfishing.net\/icefish-conference\/wp-json\/wp\/v2\/media?parent=3436"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.worldfishing.net\/icefish-conference\/wp-json\/wp\/v2\/categories?post=3436"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.worldfishing.net\/icefish-conference\/wp-json\/wp\/v2\/tags?post=3436"},{"taxonomy":"sponsor","embeddable":true,"href":"https:\/\/www.worldfishing.net\/icefish-conference\/wp-json\/wp\/v2\/sponsor?post=3436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}