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Comparison of performance between a parallel and a series solar-heat pump system; Solar heat pump system ni okeru heiretsu setsuzoku no seino hikaku

Abstract

In a solar heat pump system, a single-tank system was fabricated, in which a heat pump is installed in series between a heat collecting tank and a heat storage tank. At the same time, a double-tank system was also fabricated, in which two tanks are assembled into one to which a solar system and a heat pump are connected in parallel. Performance of both systems was analyzed by using measured values and estimated values. Heat collecting efficiency in the double-tank system is higher by about 13 points than in the single-tank system. Nevertheless, the coefficient of performance for the single-tank system is 1.03 to 1.51 times greater than that of the double-tank system. Dependency of the single-tank system on natural energy is higher by 0.3 to 3 points than the double-tank system. Putting the above facts together, it may be said that the single-tank system connecting the solar system and the heat pump in parallel is superior in performance to the double-tank system of the series connection. 3 refs., 5 figs., 2 tabs.
Authors:
Kanayama, K; Zhao, J; Baba, H; Endo, N [1] 
  1. Kitami Institute of Technology, Hokkaido (Japan)
Publication Date:
Nov 25, 1997
Product Type:
Conference
Report Number:
ETDE/JP-98753622; CONF-9711143-
Reference Number:
SCA: 320106; 140900; 142000; PA: JP-98:0G1089; SN: 98001983492
Resource Relation:
Conference: 1997 JSES/JWEA joint conference, Taiyo/furyoku energy koen, Aichi (Japan), 28-29 Nov 1997; Other Information: PBD: 25 Nov 1997; Related Information: Is Part Of Proceedings of JSES/JWEA Joint Conference (1997); PB: 454 p.; Taiyo/Furyoku energy koen ronbunshu (1997)
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 14 SOLAR ENERGY; SOLAR-ASSISTED HEAT PUMPS; SOLAR COLLECTORS; THERMAL ENERGY STORAGE EQUIPMENT; TANKS; HEAT RECOVERY; EFFICIENCY; COEFFICIENT OF PERFORMANCE; ENERGY DEPENDENCE; SOLAR ENERGY; TOTAL ENERGY SYSTEMS
OSTI ID:
366070
Research Organizations:
Japan Solar Energy Society, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE98753622; TRN: JN98G1089
Availability:
Available from Japan Solar Energy Society, 44-14, Yoyogi 2-chome, Shibuya-ku, Tokyo, Japan; OSTI as DE98753622
Submitting Site:
NEDO
Size:
pp. 293-296
Announcement Date:
Sep 02, 1999

Citation Formats

Kanayama, K, Zhao, J, Baba, H, and Endo, N. Comparison of performance between a parallel and a series solar-heat pump system; Solar heat pump system ni okeru heiretsu setsuzoku no seino hikaku. Japan: N. p., 1997. Web.
Kanayama, K, Zhao, J, Baba, H, & Endo, N. Comparison of performance between a parallel and a series solar-heat pump system; Solar heat pump system ni okeru heiretsu setsuzoku no seino hikaku. Japan.
Kanayama, K, Zhao, J, Baba, H, and Endo, N. 1997. "Comparison of performance between a parallel and a series solar-heat pump system; Solar heat pump system ni okeru heiretsu setsuzoku no seino hikaku." Japan.
@misc{etde_366070,
title = {Comparison of performance between a parallel and a series solar-heat pump system; Solar heat pump system ni okeru heiretsu setsuzoku no seino hikaku}
author = {Kanayama, K, Zhao, J, Baba, H, and Endo, N}
abstractNote = {In a solar heat pump system, a single-tank system was fabricated, in which a heat pump is installed in series between a heat collecting tank and a heat storage tank. At the same time, a double-tank system was also fabricated, in which two tanks are assembled into one to which a solar system and a heat pump are connected in parallel. Performance of both systems was analyzed by using measured values and estimated values. Heat collecting efficiency in the double-tank system is higher by about 13 points than in the single-tank system. Nevertheless, the coefficient of performance for the single-tank system is 1.03 to 1.51 times greater than that of the double-tank system. Dependency of the single-tank system on natural energy is higher by 0.3 to 3 points than the double-tank system. Putting the above facts together, it may be said that the single-tank system connecting the solar system and the heat pump in parallel is superior in performance to the double-tank system of the series connection. 3 refs., 5 figs., 2 tabs.}
place = {Japan}
year = {1997}
month = {Nov}
}