HEAT STORAGE-TYPE FLOOR HEATING-SYSTEM WITH HEAT-PUMP DRIVEN BY DISCOUNT ELECTRICITY SUPPLIED AT NIGHT

被引：0

作者：

YAMAGUCHI, M

SAYAMA, S

YONEDA, H

IWAMOTO, KY

HARADA, M

WATANABE, S

FUKAI, K

机构：

[1] MYCOM CO LTD,MORIYA 30201,JAPAN

[2] HOKKAIDO SNOW MELTING INST,SAPPORO,HOKKAIDO 005,JAPAN

[3] SUMITOMO CHEM IND CO LTD,TOKYO 103,JAPAN

[4] BAKELITE COMMERCIAL CO LTD,TOKYO 111,JAPAN

[5] YOKOHAMA NATL UNIV,DEPT CHEM ENGN,YOKOHAMA,KANAGAWA 240,JAPAN

来源：

KAGAKU KOGAKU RONBUNSHU | 1995年 / 21卷 / 05期

关键词：

FLOOR HEATING; HEAT STORAGE; HEAT PUMP;

D O I：

10.1252/kakoronbunshu.21.853

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Heat storage-type floor heating by hot water from a heat pump driven 8 hrs by night electricity was studied. The phase change material (PCM) used for heat storage was Na2SO4 . 10H(2)O package. Properties of the PCM are; melting point 32 degrees C, solidification point 30 degrees C, heat storage 43.0 W . h/kg (Delta T=10 degrees C). The floor heating room was a 40 m(2), and without window, Na2SO4 . 10H(2)O package was used as a phase change material for heat storage. Hot water panels laid under PCM packages (26 m(2)) were placed on a stage 1.2 m above the floor. The total heat storage was 28.5 kW. The heat pump was operated in an 8 hrs ON-16 hrs OFF cycle so that three times the heat extraction was needed as compared with continuous operation. For this reason, a Net film type vertical tube with a CFC flashing pump at the bottom was developed. From experimental results, the thermal balance of the system was calculated and the applicability for practical use was discussed.

引用

页码：853 / 858

页数：6

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