Experimental research on geothermal heat pump system with non-azeotropic working fluids

被引：17

作者：

Zhao, PC ^{[1
]}

Zhao, L ^{[1
]}

Ding, GL ^{[1
]}

Zhang, CL ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen Engn, Shanghai 200030, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2002年 / 22卷 / 15期

关键词：

experimental research; performance analysis; GHPS; new working condition; new non-azeotropic working fluids;

D O I：

10.1016/S1359-4311(02)00086-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The subject of the paper is how to solve the problem of heating in some areas and making the best of geothermal waste water through heat pump. Now the biggest barrier is to find proper working fluids, which can work in the condition of 80-100 degreesC as condensation temperature and 25-35 degreesC as evaporation temperature, and at the same time keep the highest pressure in the system under 2500 kPa. Experimental results show that new working fluids R123/R290 (50/50 by mass %) and R123/R290/R600a (40/50/10 by mass %) will meet the requirement of the new working condition. The coefficient of performance of the geothermal heat pump system using the working fluids is above 3.0 with condensation temperature above 80 degreesC and condensation pressures below 2500 kPa. In the end of the paper, some improvements are proposed for the purpose of better performance. In the paper, the thermodynamic properties of mixtures are calculated with REFPROP 6.1. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1749 / 1761

页数：13

共 11 条

[1] The potential of district heating using geothermal energy. A case study, Greece [J].

Agioutantis, Z ;

Bekas, A .

GEOTHERMICS, 2000, 29 (01) :51-64

[2]

*ASHRAE, 1992, 341992 ASHRAE, P1

[3]

CHEN J, 1995, HVAC R RES, V1

[4]

CLAM JM, 1998, INT J REFRIG, V21, P308

[5]

CORR S, 1994, P IIR C PAD 1994 09, P25

[6]

JENS T, 2000, GEOTHERMICS, V29, P723

[7]

JOHN WL, 2001, GEOTHERMICS, V30, P29

[8]

OMER C, 1999, ENERGY CONVERSION MA, V40, P193

[9] Environmental protection of geothermal waters and travertines at Pamukkale, Turkey [J].

Simsek, S ;

Günay, G ;

Elhatip, H ;

Ekmekçi, M .

GEOTHERMICS, 2000, 29 (4-5) :557-572

[10]

*THERM DIV NAT I S, 1998, NIST REFPROP STAND R, V23

← 1 2 →