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All-Electric Heat Pump.--The glamorous, luxury-equipped S.S. United States may be queen of the seas, but she has to bow to a lowly barge on one score.
The blunt-nosed Blind Pass, out of the Gulf of Mexico, is fitted with science's latest answer to indoor temperature control--an all-electric heat pump developed by General Electric engineers. The ship's builder, Levingston Shipbuilding Corporation, of Orange, Texas, says she is the only ship afloat so equipped.
The heat pump's only fuel is electricity. The pump automatically extracts heat from cold winter air for warming the barge. Summertime cooling is accomplished by reversing the process. With one mythical blue-ribbon to its credit, the Blind Pass is willing to rest on its laurels. At present, the ship's builders have no plans for challenging the S.S. United States' speed record.
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results of the cycle modeling show that the blends HFC-134a/HFC-152a and HC-600a/HFC-152a have some advantages relative to HFC-134a. These blends can be used as effective alternative refrigerants.