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Measuring and evaluation of heat storage tank in Hoerby; Maalinger og evaluering af varmeakkumuleringstank i Hoerby

Technical Report:

Abstract

The aim was to build a prototype concrete tank which was suitable for the seasonal storage of solar heat. The building material was watertight concrete (``Densit``) of the type used for constructing floors and the tank was to be integrated in a district heating plant. Problems arose concerning leaks and cracks in the concrete construction. It was thought that these were caused by an accumulation of water resulting from the use of two kinds of membrane, one of which was more open to diffusion than the other. Measurements were taken during 4 periods from September 20th 1990 until January 3rd 1991. The current of energy and the temperatures in 5 layers of the storage facility were measured. Heat losses were registered as 328 kWh per 24 hours. The fact that this was more than expected was thought to be due to leakage and surface evaporation. The testing confirmed the general suspicion that no usable cheap membranes are currently available. It is suggested that clay-sealing could help to solve the problem of leakage. (AB).
Authors:
Vejsig Pedersen, P; Kofod, P [1] 
  1. Cenergia (Denmark)
Publication Date:
Mar 01, 1992
Product Type:
Technical Report
Report Number:
DTH-LV-92-10
Reference Number:
SCA: 142000; PA: DK-92:001880; SN: 93000918282
Resource Relation:
Other Information: DN: Contract ENS-UVE-89.0246; PBD: Mar 1992
Subject:
14 SOLAR ENERGY; SOLAR ENERGY; SEASONAL THERMAL ENERGY STORAGE; DISTRICT HEATING; CONCRETES; LEAKS; HEAT LOSSES; PERMEABILITY; ACCUMULATORS; 142000; HEAT STORAGE
OSTI ID:
10112763
Research Organizations:
Cenergia ApS, Ballerup (Denmark); Danmarks Tekniske Hoejskole, Lyngby (Denmark). Lab. for Varmeisolering; Nordvestjysk Folkecenter for Vedvarende Energi, Hurup (Denmark)
Country of Origin:
Denmark
Language:
Danish
Other Identifying Numbers:
Other: ON: DE93752971; TRN: DK9201880
Availability:
OSTI; NTIS
Submitting Site:
DK
Size:
34 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Vejsig Pedersen, P, and Kofod, P. Measuring and evaluation of heat storage tank in Hoerby; Maalinger og evaluering af varmeakkumuleringstank i Hoerby. Denmark: N. p., 1992. Web.
Vejsig Pedersen, P, & Kofod, P. Measuring and evaluation of heat storage tank in Hoerby; Maalinger og evaluering af varmeakkumuleringstank i Hoerby. Denmark.
Vejsig Pedersen, P, and Kofod, P. 1992. "Measuring and evaluation of heat storage tank in Hoerby; Maalinger og evaluering af varmeakkumuleringstank i Hoerby." Denmark.
@misc{etde_10112763,
title = {Measuring and evaluation of heat storage tank in Hoerby; Maalinger og evaluering af varmeakkumuleringstank i Hoerby}
author = {Vejsig Pedersen, P, and Kofod, P}
abstractNote = {The aim was to build a prototype concrete tank which was suitable for the seasonal storage of solar heat. The building material was watertight concrete (``Densit``) of the type used for constructing floors and the tank was to be integrated in a district heating plant. Problems arose concerning leaks and cracks in the concrete construction. It was thought that these were caused by an accumulation of water resulting from the use of two kinds of membrane, one of which was more open to diffusion than the other. Measurements were taken during 4 periods from September 20th 1990 until January 3rd 1991. The current of energy and the temperatures in 5 layers of the storage facility were measured. Heat losses were registered as 328 kWh per 24 hours. The fact that this was more than expected was thought to be due to leakage and surface evaporation. The testing confirmed the general suspicion that no usable cheap membranes are currently available. It is suggested that clay-sealing could help to solve the problem of leakage. (AB).}
place = {Denmark}
year = {1992}
month = {Mar}
}