tag:blogger.com,1999:blog-7588328928227524790.post4997047692618939228..comments2023-07-09T19:59:16.047+01:00Comments on Journeys of heart and mind: Improving car efficiencyChris Jefferieshttp://www.blogger.com/profile/07024046243018838005noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7588328928227524790.post-2099743504063833282008-07-23T09:30:00.000+01:002008-07-23T09:30:00.000+01:00Thanks Gavin,I envisage a network of quite narrow ...Thanks Gavin,<br><br>I envisage a network of quite narrow bore tubing so the total quantities of coolant in the roof space would be small. The circuit would also be closed when the engine is hotter than the roof network (which would be normal while using the vehicle) so there'd be no pressure and no flow.<br><br>But safety is important and you raised a good point. I'll leave it as an exercise for the manufacturers :-)<br><br>In haven't sent the idea off to manufacturers, I thought a good first move would be to get some comment from readers. Yours is first - thanks! If there are any potential prototypers out there, go ahead, be my guest, and let me know how it works out.<br><br>ChrisChrishttp://www.blogger.com/profile/07024046243018838005noreply@blogger.comtag:blogger.com,1999:blog-7588328928227524790.post-76133469988164123722008-07-23T04:46:00.000+01:002008-07-23T04:46:00.000+01:00Hi Chris,I like this idea of trying to somewhat wa...Hi Chris,<br><br>I like this idea of trying to somewhat warm a cold engine by this method, but my first thought is that of safety. Would a network of piping that contains coolant and extends up the front of the vehicle and across the roof be sufficiently secure in an accident?<br><br>I wonder if a better approach may be to arrange the necessary piping just under the bonnet of the car (perhaps along the sides to avoid complication with the hinged bonnet itself). Not only would the piping be kept further from the occupants of the vehicle, but it would be less far from the engine compartment, allowing for more efficient temperature transfer from the warm outside air and potentially lower design costs.<br><br>Still, it's a neat idea! Are you hawking it out to anyone else who may be interested in prototyping such an arrangement?<br><br>GavinGavinnoreply@blogger.com