Re: [Biofuel] was WVO-Water Separation: coalescer media, now electric resistance heat efficiency

2006-04-28 Thread Mike McGinness
Joe, Not sure, I would need to think hard on it and do some modeling but I suspect there are several problems, one of which may be temperature difference limits, i.e. the driving forces needed to move the heat through your proposed system to reach those efficiencies. What is the upper temperature

Re: [Biofuel] was WVO-Water Separation: coalescer media, now electric resistance heat efficiency

2006-04-28 Thread David Miller
Joe Street wrote: > Hey I just thought of something. If I used your heatpump and > connected the output heat exchanger to a sterling motor generator set > with an overall efficiency of lets say 50%, I could get 1.5 KW of > electrical power from the 3 KW heat energy coming out of the > heatpum

Re: [Biofuel] was WVO-Water Separation: coalescer media, now electric resistance heat efficiency

2006-04-28 Thread Joe Street
Hey I just thought of something.  If I used your heatpump and connected the output heat exchanger to a sterling motor generator set with an overall efficiency of lets say 50%,  I could get 1.5 KW of electrical power from the 3 KW heat energy coming out of the heatpump.  Since the heatpump has a

Re: [Biofuel] was WVO-Water Separation: coalescer media, now electric resistance heat efficiency

2006-04-28 Thread Joe Street
Well Mike if you have been following the discussion, we've already established that my country is the largest producer of hydroelectricity and gets 70% of its needs from that renewable source.  The heatpump CP is cool for sure but if I wanted to pump heat from my roof to a storage tank I would

Re: [Biofuel] was WVO-Water Separation: coalescer media, now electric resistance heat efficiency

2006-04-27 Thread Mike McGinness
Joe, Your claim that Electric resistance heating converts nearly 100% of the energy in the electricity to heat is right but: I found the following at a US DOE site: "Electric Resistance Heating: Electric resistance heating converts nearly 100% of the energy in the electricity to heat. However, m