EXPERIMENTAL-VERIFICATION OF A HEAT-PUMP ASSISTED CONTINUOUS DRYER SIMULATION-MODEL

被引：40

作者：

CLEMENTS, S

JIA, XG

JOLLY, P

机构：

[1] Energy Laboratory, University of Queensland, 4072, Walcott Street

来源：

INTERNATIONAL JOURNAL OF ENERGY RESEARCH | 1993年 / 17卷 / 01期

关键词：

HEAT PUMPS; DRYING;

D O I：

10.1002/er.4440170104

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The experimental and predicted performance of a prototype heat pump assisted continuous dryer is reported. The dryer was shown to be capable of specific moisture extraction rates (SMERs) of between 1.5 and 2.5 kg/kWh using wetted foam rubber as the test material being dried. The results highlight the importance of maintaining conditions of high relative humidity within the air stream entering the evaporator; an increase in the relative humidity from 30 to 80% was shown to give a two-fold increase in the SMER. An optimum evaporator bypass air ratio of between 60 and 70% was observed for this dryer. The effects on performance of deviations from this optimum condition were found to be less significant than had been indicated by earlier models. The predicted performance of the dryer using a simulation model developed previously by the authors was in good agreement with the corresponding measured values.

引用

页码：19 / 28

页数：10

共 8 条

[1]

Baines P., Carrington C., Analysis of Rankine cycle heat pump dryers, Int. J. Energy Res., 12, pp. 495-510, (1988)

[2]

Clements S., (1991)

[3]

Geeraert B., Air drying by heat pumps with special reference to timber drying, Heat pumps and their contribution to energy conservation, pp. 219-246, (1976)

[4]

Hodgett D.L., Efficient drying using heat pumps, Chemical Engineers, 311, pp. 510-512, (1976)

[5]

Jia X., Jolly P., Clements S., Heat pump assisted continuous drying. Part 2: Simulation results, Int. J. Energy Res., 14, pp. 771-782, (1990)

[6]

Jolly P., Jia X., Clements S., Heat pump assisted continuous drying. Part 1: Simulation model, Int. J. Energy Res., 14, pp. 757-770, (1990)

[7]

Oliver T., pp. 73-88, (1982)

[8]

Tai K.W., Zylla R., Devotta S., Diggory P.J., Watson F.A., Holland F.A., The potential for heat pumps in drying and dehumidification systems. II: An experimental assessment of the heat pump characteristics of a heat pump dehumidification system using R114, Int. J. Energy Res., 6, pp. 323-331, (1982)

← 1 →