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HEAT EXCHANGER FOR HEAT RECOVERY FROM UNTREATED SEWAGE WATER.

[In Norwegian. / En norvégien.]

Author(s) : HAUKAS H. T.

Type of article: Article

Summary

TWO DIFFERENT TYPES OF HEAT EXCHANGERS FOR HEAT RECOVERY FROM UNTREATED SEWAGE WATER ARE INVESTIGATED, PLATE HEAT EXCHANGER (LIQUID/LIQUID) AND PLATE EVAPORATOR WITH WATER FILM FLOW. THE FORMER WAS SOON BLOCKED BY BACTERIAL GROWTH ON THE SURFACE AND FOUND UNSUITABLE. PLATE EVAPORATOR WITH AUTOMATIC CLEANING SYSTEM INSTALLED SEEMS TO BE A SAFE SOLUTION. THIS EVAPORATOR CAN ALSO BE USED FOR LOW TEMPERATURE WATER, DOWN TO APPROXIMATELY 2 K ABOVE FREEZING POINT AT THE INLET. HIGH K-VALUES ARE REACHED, EG 1,200-1,400 W/M2K WITH REFRIGERANT R22 AND 1,000-1,200 W/M2 K WITH R12.

Details

  • Original title: [In Norwegian. / En norvĂ©gien.]
  • Record ID : 1983-2350
  • Languages: Norwegian
  • Source: Scand. Refrig. - vol. 12 - n. 1
  • Publication date: 1983/02
  • Document available for consultation in the library of the IIR headquarters only.

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