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SOLAR WATER HEATER USING A DIRECT EXPANSION COLLECTOR HEAT PUMP.

[In Japanese. / En japonais.]

Author(s) : NOGUCHI M.

Type of article: Article

Summary

A FORCED-CIRCULATION SOLAR SYSTEM HAS BEEN DEVELOPED WHICH EMPLOYS A NEW HYBRID HEAT-COLLECTING TECHNIQUE TO OBTAIN HOT WATER BY COLLECTING ENERGY FROM BOTH SOLAR INSOLATION AND ATMOSPHERIC TEMPERATURE. THIS IS REALIZED BY THE DEVELOPMENT OF A NEW TYPE OF COLLECTOR USING NO GLASS OR ADIABATIC MATERIAL DUE TO NO HEAT LOSS AND BY THE DEVELOPMENT OF A FORCED-CIRCULATION FLOW-CONTROL TECHNIQUE. USING THESE DEVICES, THE SOLAR ENERGY-COLLECTING EFFICIENCY IS AS HIGH AS 91% AND THE COLLECTING ENERGY INCREASES. CONSEQUENTLY, A STABLE SUPPLY OF HOT WATER: 318-338 K (45-65 DEG C), 300 L/DAY, IS POSSIBLE EVEN ON CLOUDY OR RAINY DAYS DURING THE 4 SEASONS. THE NEWLY DEVELOPED COLLECTOR IS 1/5TH OF THE SIZE AND 1/11TH OF THE WEIGHT OF A CONVENTIONAL MODEL, THUS PROVIDING SIMPLE AND EASY INSTALLATION.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1987-1566
  • Languages: Japanese
  • Subject: General information
  • Source: Refrigeration - vol. 61 - n. 706
  • Publication date: 1986
  • Document available for consultation in the library of the IIR headquarters only.

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