STUDY ON HEAT EXCHANGED IN SOIL BY CIRCULATING WATER IN A STEEL PILE

被引：82

作者：

MORINO, K

OKA, T

机构：

[1] Institute of Technology, Shimizu Corporation, Tokyo, 135, 3-4-17, Etchujima

[2] Faculty of Engineering, Utsunomiya University, Utsunomiya City, Tochigi, 321

来源：

ENERGY AND BUILDINGS | 1994年 / 21卷 / 01期

关键词：

Computational methods - Finite difference method - Flow of water - Pile foundations - Soils;

D O I：

10.1016/0378-7788(94)90017-5

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

For the purpose of using soil as a heat sink and heat source, we conducted a heat exchange experiment employing a steel pile used for building foundations as a heat exchanger with the soil. The steel pile had a 400-mm external diameter and was installed vertically to a depth of 20 m. The quantity of heat exchanged with the soil and variations in the water temperature in a steel pile were investigated. The heat exchanged with the soil per day was 210 MJ as a heat sink, and 113-150 MJ as a heat source during a short-term experiment. Numerical calculations were performed by using a three-dimensional finite difference equation to predict the water temperature and the quantity of heat exchanged with the soil. The calculation results agreed well with the experimental results, which showed that the calculation method could predict variations in the water temperature and the quantity of heat exchanged with the soil. Then the quantity of heat collected with the steel pile in a long-term operation was estimated by using a calculation method based on the short-term experiment. It was estimated to be about one-third of the amount of heat collected in the short-term experiment.

引用

页码：65 / 78

页数：14

共 29 条

[1]

Nakajima, Et al., Experimental study on thermal core type ground thermal energy storage using a heat pump, Proc. Soc. Heating, Air-Conditioning and Sanitary Engineers Tech. Conf. B-19, pp. 273-276, (1983)

[2]

Nakajima, Et al., Study on effective utilization of ground heat storage system (Part 1–3), Summaries of Technical Papers of Ann. Meet. Architectural Institute of Japan (Environ. Eng.), (1987)

[3]

Nakajima, Et al., Investigation analysis on thermal properties of soil as heat storage media (Part 1–6), Summaries of Technical Papers of Ann. Meet. Architectural Institute of Japan (Environ. Eng.), (1983)

[4]

Nakajima, Et al., Study on thermal properties of soil relation with passage of time, Proc. Soc. Heating, Air-Conditioning and Sanitary Engineers Tech. Conf., C-27, pp. 441-444, (1986)

[5]

Ochifuji, Et al., Study on seasonal ground heat storage of solar energy using a vertical pipe system (Part 1), Trans. Soc. Heating, Air-Conditioning and Sanitary Engineers of Japan, No. 27, pp. 13-24, (1985)

[6]

Ochifuji, Et al., Study on seasonal ground heat storage of solar energy using a vertical pipe system (Part 2), Trans. Soc. Heating, Air-Conditioning and Sanitary Engineers of Japan, No. 27, pp. 25-35, (1985)

[7]

Ochifuji, Et al., Study on seasonal ground heat storage of solar energy using a vertical pipe system (Part 3), Trans. Soc. Heating, Air-Conditioning and Sanitary Engineers of Japan, No. 32, pp. 45-55, (1986)

[8]

Ochifuji, Et al., Study on seasonal ground heat storage of solar energy using a vertical pipe system (Part 4), Trans. Soc. Heating, Air-Conditioning and Sanitary Engineers of Japan, No. 32, pp. 57-67, (1986)

[9]

Ochifuji, Kim, Theoretical analysis of heat conduction of long term heat storage and extraction by buried vertical pipe system, Trans. Soc. Heating, Air-Conditioning and Sanitary Engineers of Japan, No. 36, pp. 1-9, (1988)

[10]

Tanaka, Yasue, Study on long-term ground heat storage with vertical coil (Part 2), Proc. Soc. Heating, Air-Conditioning and Sanitary Engineers Tech. Conf., B-11, pp. 237-240, (1982)

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