tag:blogger.com,1999:blog-6580507995910853692.post1701426012689144899..comments2023-10-31T15:53:59.443+00:00Comments on WB Pippin: Solar Electric Dreams......John Wittshttp://www.blogger.com/profile/14291220958329864659noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-6580507995910853692.post-59678018860447621242010-07-01T15:03:23.600+01:002010-07-01T15:03:23.600+01:00Look at Bones' blog - she got your tiller pin!...Look at Bones' blog - she got your tiller pin!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6580507995910853692.post-57223910527586314012010-07-01T10:49:46.827+01:002010-07-01T10:49:46.827+01:00In fact, having done the maths, a 500W element sho...In fact, having done the maths, a 500W element should take about 3 hours to bring 30 litres of water (guessing your calorifier size) to 60C from 20C, so probably quite feasible...<br /><br />Immersion heater here: http://www.orionairsales.co.uk/wind-or-solar-immersion-water-heater-element-12v24v36v48v-1473-p.aspMike P-Jhttp://www.randominformation.co.uknoreply@blogger.comtag:blogger.com,1999:blog-6580507995910853692.post-3517082668463459872010-07-01T10:44:00.596+01:002010-07-01T10:44:00.596+01:00John: in the words of Montgomery Scott, you cannae...John: in the words of Montgomery Scott, you cannae break the laws of physics, Captain!<br /><br />Reducing the air pressure won't help you - the water will just boil at a lower temperature, which is why cups of tea made on Mt Everest are disgusting!<br /><br />What you need is a 12v immersion heater with lots of grunt. A typical domestic 240V one outputs 3kW, the same as a kettle. The biggest 12V one I can find is 500W, but I reckon that would do you fine - as that's more than the total output of your solar panels and wind generator combined.<br /><br />Then you need a voltage-sensitive relay circuit (which I could make for you fairly easily) to engage the immersion heater only when the battery bank is nearly fully charged, and to disconnect it when the battery level drops below a given threshold. Bob's your uncle. Give me a ring if you want more details.<br /><br />Mike PJMike P-Jhttp://www.randominformation.co.uknoreply@blogger.comtag:blogger.com,1999:blog-6580507995910853692.post-41854048491443538382010-06-30T23:48:12.616+01:002010-06-30T23:48:12.616+01:00John,
If it boils at a lower temperature under pr...John,<br /><br />If it boils at a lower temperature under pressure what would happen when you release that pressure?<br /><br />Mark C.Unknownhttps://www.blogger.com/profile/12314878690503236503noreply@blogger.com