一种回热回质循环吸附式制冷系统的仿真

doi:10.11949/j.issn.0438-1157.20161413

化工学报 ›› 2016, Vol. 67 ›› Issue (S2): 262-268.DOI: 10.11949/j.issn.0438-1157.20161413

一种回热回质循环吸附式制冷系统的仿真

潘权稳, 王如竹

上海交通大学机械与动力工程学院, 上海 200240

收稿日期:2016-10-08 修回日期:2016-10-10 出版日期:2016-12-30 发布日期:2016-12-30
通讯作者: 潘权稳(1987-),男,博士后。
基金资助:
上海市科委科研计划项目（15DZ1201802）。

Simulation of an adsorption refrigeration system with heat and mass recovery processes

PAN Quanwen, WANG Ruzhu

School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2016-10-08 Revised:2016-10-10 Online:2016-12-30 Published:2016-12-30
Supported by:
supported by the Scientific Research Project of Shanghai Municipal Science and Technology Commission (15DZ1201802).

摘要/Abstract

摘要：

吸附式制冷常采用回热回质循环来提升系统性能。研究了一种采用串联回热和类回质方式的回热回质循环吸附式制冷系统，并对其进行仿真。系统的主要部件（含作为储液器的蒸发器）采用3层换热法建立数学模型。仿真结果表明，随着制冷时间的延长，系统性能系数（COP）单调增大，单位质量制冷量（SCP）单调减小。随着回热时间的延长，COP和SCP是先增大后减小，最佳的回热时间为10 s。随着回质时间的延长，COP和SCP波动性下降，回质过程未提高系统性能。COP和SCP随着热水、冷冻水温度的升高以及冷却水温度的下降而增大。热水温度对SCP以及冷冻水、冷却水温度对COP和SCP的影响，呈现线性变化，而热水温度对COP的影响呈现二次变化。

关键词: 回热回质, 吸附, 制冷, 动态仿真, 3层换热, 模型

Abstract:

Using heat and mass recovery processes is a common way to improve system performance in the field of adsorption refrigeration.In this paper, an adsorption refrigeration system with serial heat recovery and mass recovery-like processes has been numerical studied and its dynamic simulation was made.Mathematical models of main components (including the evaporator which works as reservoir)are built, based on the characteristics of heat transfer in three layers.Simulation results indicate that when cooling time increases, coefficient of performance (COP) monotonically increases but specific cooling power (SCP) monotonically decreases.When heat time increases, both COP and SCP increase first and then drop and the optimal heat recovery time is 10 s.Both COP and SCP reduce while mass recovery time enlarges, meaning that the mass recovery does not make any improvement on system performance.When temperatures of hot water and chilled water increase and temperature of cooling water decreases, both COP and SCP rise.The curves of SCP vs hot water temperature, COP vs cooling water temperature and SCP vs cooling water temperature are nearly linear.The curve of COP vs hot water temperature is quadric.

Key words: heat and mass recovery, adsorption, refrigeration, dynamic simulation, heat transfer in three layers, model

中图分类号:

TB61

潘权稳, 王如竹. 一种回热回质循环吸附式制冷系统的仿真[J]. 化工学报, 2016, 67(S2): 262-268.

PAN Quanwen, WANG Ruzhu. Simulation of an adsorption refrigeration system with heat and mass recovery processes[J]. CIESC Journal, 2016, 67(S2): 262-268.

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一种回热回质循环吸附式制冷系统的仿真

Simulation of an adsorption refrigeration system with heat and mass recovery processes

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