2011 Volume 65 Issue 6 Pages 555-559
Typical application of Vapor Compression Refrigerating and Heat Pump cycle is the package air conditioners, which the demands for performance improvement have been increasingly extending to many aspects as economy and environment.
In order to respond to these demands, Sinryo Denki Hoan Association advocate an “advance cycle”, based upon thermo-fluid dynamic point of view. Considering that Refrigerating and Heat Pump Cycles has been consider as “reverse CARNOT cycle” “advance cycle”, was started to review in view points of “reverse RANKINE cycle”, to offer less sensitive cycle to the irreversibility bound to occur in an actual plant. “Nobita-kun” is a heat exchange promoting device installed in to energy efficient coils”, which at the same time reduces compressor power the viewpoint of fluid dynamics. Test shows improve cycle performance either in static states or in dynamic states, and test with a simple form demonstrates cycle COP improvement that has demonstrated to give useful for daily operation.
