Share

HEAT ABSTRACTION WITH BOTTOM-ANCHORED COOLING COILS IN STATIONARY WATER. LABORATORY TRIALS.

[In Swedish. / En suédois.]

Author(s) : SVENSSON T., SORMAN L. O.

Type of article: Periodical article

Summary

THE OBJECTIVE OF THIS PROJECT HAS BEEN TO STUDY THE MECHANISMS OF HEAT ABSORPTION AND FREEZING AROUND A 40/32.6 MM DIAMETER PIPE LYING ON THE BOTTOM OF A STATIONARY BODY OF WATER, OR POSSIBLY PARTLY COVERED BY THE BOTTOM SEDIMENT. MEASUREMENTS HAVE BEEN MADE IN A 0.8 M DEEP POOL, WITH WATER TEMPERATURES VARYING BETWEEN 273.5 AND 278 K (0.5 AND 5 DEG C), AND WITH A HEAT FLUX FROM THE BOTTOM EQUIVALENT TO THAT NORMALLY ENCOUNTERED IN LAKES UNDER WINTER CONDITIONS. IF THE WATER TEMPERATURE EXCEEDS 274 K (1 DEG C), THE PIPE CAN ABSORB 40 W/M OR MORE (ABOUT 7 W/MILLIK). IF THE WATER TEMPERATURE DROPS TO 273.5 K, THE GROWTH OF ICE ON THE PIPE TENDS TO LIMIT THE MAXIMUM RATE OF HEAT ABSTRACTION TO 20-25 W/M. IF THE PIPE IS JUST BURIED FLUSH WITH THE SAND, THE RATE OF HEAT ABSORPTION FALLS (TO 4.5 W/MILLIK). (SYNOP. SWED. BUILD. RES., SE., N.7, 1983/12, 26.

Details

  • Original title: [In Swedish. / En suédois.]
  • Record ID : 1984-1683
  • Languages: Swedish
  • Source: Swed. Counc. Build. Res. - R41:1983; 60 p.
  • Publication date: 1983
  • Document available for consultation in the library of the IIR headquarters only.

Links


See the source

Indexing