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uber31416 (December 31, 1969 at 6:59 pm)
My engine is less sensitive than the P-19 Stirling engine of Dr. Senft and requires 3° C or 4 ° C between the two plates. It run only during the summer days!... :-)
uber31416 (December 31, 1969 at 6:59 pm)
"The engine was set up with two cloth pads covering most of its top plate. The pads were kept moistened by wicks which fed water from two cups on the table beside the engine. Evaporation of the water from the cloth pads kept the engine top plate between 3° and 4°F cooler than the bottom plate. On this temperature difference the engine ran non-stop for 16 days"
uber31416 (December 31, 1969 at 6:59 pm)
It's exactly that ! This Nineties idea comes from Dr JR Senft which P-19 Stirling engine has been operated on the cooling effect of evaporating water. In his book "An Introduction to Low Temperature Differential Stirling Engines" - Moriya Press 1995 - it wrote :
fuzzymonkey777 (December 31, 1969 at 6:59 pm)
Could somone translate the subtitles into English? What little french I know seems to suggest the only source of energy is the evaporation of water on the top plate? Sweet concept if that's how it works. |
