05-03-2008 дата публикации
Номер: GB0002441343A
Принадлежит:
A solar heat engine comprises a solar heat collector, a radiator, an insulator, and a turbine driving a compressor. The solar heat collector comprises a thin walled copper tube AB and the radiator comprises a thin walled copper tube CD. Each of the tubes includes a number of heating or cooling fins made from thin copper sheet. An insulator is provided between the solar heat collector and the radiator so as to place the radiator's cooling fins in a region of shadow or shade. A working fluid, such as ammonia gas, is heated in the solar heat collector between points A and B. The warmed working fluid then passes through the turbine (B-C, fig.2) and into the radiator where low grade heat is rejected between points C and D. The cooled working fluid then passes through the compressor (D-A, fig.2) before returning to the solar heat collector at point A. In operation, the solar heat collector is heated by the sun as it arcs overhead during the day whilst the radiator's shaded cooling fins dissipate ...
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