{"id":85,"date":"2007-10-21T04:31:14","date_gmt":"2007-10-21T08:31:14","guid":{"rendered":"http:\/\/www.etotheipiplusone.net\/?p=85"},"modified":"2007-10-28T22:53:03","modified_gmt":"2007-10-29T02:53:03","slug":"the-next-mutant-implement-is","status":"publish","type":"post","link":"https:\/\/www.etotheipiplusone.net\/?p=85","title":{"rendered":"The next mutant implement is&#8230;"},"content":{"rendered":"<p>Like most small, bushy-tailed rodents, I&#8217;m stocking up on things to prepare for the winter. Since I don&#8217;t intend to go outside frequently in liquid helium temperatures to go food gathering, I bought a Haier cube fridge at Best Buy as a provisions capacitor.<\/p>\n<p style=\"text-align: center\"><a href=\"\/pics\/fridge.jpg\"><img decoding=\"async\" src=\"\/pics\/tnfridge.jpg\" alt=\"TB4.5 makes a great decorative piece.\" \/><\/a><\/p>\n<p>Getting it back <em>from<\/em> said Best Buy on foot was an adventure by itself, but it could have been worse. What caught my eye as I was browsing the appliance section was the fact that it was thermoelectric &#8211; it doesn&#8217;t have a compressor or coolant, but uses <a href=\"http:\/\/en.wikipedia.org\/wiki\/Peltier_cooler\" target=\"_blank\">Peltier coolers<\/a>. As usual, a mass of ideas and thoughts emanated from my head and began congealing upon it. Since this was impolite to do in public, I went ahead and bought the unit. It also happened to be the least expensive.<\/p>\n<p>Thermoelectric refrigerators aren&#8217;t known to be high-performance units, nor particularly efficient (the average Peltier device is about 10% efficient thermally), and most are used as drink coolers and such. A noble use indeed, but I, in love with severely mutated and overpowered devices (think Snuffles), could have fun with it.<\/p>\n<p>The first thing I did when I got back was take the back cover off. I must not be used to appliance construction techniques, but this thing is rickety beyond anything I&#8217;ve seen. The sheet metal forming the case was on the order of&#8230; mid-20s gauge?<\/p>\n<p><a href=\"\/pics\/fridge2.jpg\"><img decoding=\"async\" src=\"\/pics\/tnfridge2.jpg\" title=\"What? WHAT? A 80mm fan on a nearly 5 inch square heat sink? What is this bullshit?\" \/><\/a> The operating mechanics are&#8230; well, simple. An additional heatsink and fan on the inside of the cabinet act as the &#8220;coldsink&#8221; for the Peltier device.<\/p>\n<p><a href=\"\/pics\/fridge3.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"\/pics\/tnfridge3.jpg\" title=\"The most obvious thing to do is slam 240 volts into it.\" height=\"96\" width=\"128\" \/><\/a> One board to control them all. On the right is a switch-mode power supply, and on the left the control electronics, which I assume throttle the fan and limit the Peltier device current according to needs (I haven&#8217;t taken the board out yet). Output on the fans and Peltier appear to be 12 volts.<\/p>\n<p>Because of the control electronics, simple overvolting isn&#8217;t an option. Besides, that wouldn&#8217;t be completely above and beyond what the boundary of genius and insanity dictates.<br \/>\nThe board also cannot be overdriven without mods &#8211; the power transistors get extremely hot as they are, and probably wouldn&#8217;t appreciate more loading. The fans seem to be mediocre and the heatsink fin area sparse.<\/p>\n<p>Therefore, the inaugural project to adorn the new <strong>Future Projects<\/strong> page is the as-of-yet unnamed mutant minifridge. Don&#8217;t bother looking, as there&#8217;s nothing really worth looking at.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Like most small, bushy-tailed rodents, I&#8217;m stocking up on things to prepare for the winter. Since I don&#8217;t intend to go outside frequently in liquid helium temperatures to go food gathering, I bought a Haier cube fridge at Best Buy as a provisions capacitor. Getting it back from said Best Buy on foot was an [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,1],"tags":[22,20],"class_list":["post-85","post","type-post","status-publish","format-standard","hentry","category-project-build-reports","category-stuff","tag-refrigerator","tag-thermoelectric"],"_links":{"self":[{"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=\/wp\/v2\/posts\/85","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=85"}],"version-history":[{"count":0,"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=\/wp\/v2\/posts\/85\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=85"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=85"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=85"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}