一种回热回质循环吸附式制冷系统的仿真

发布时间：2018-03-23 04:21

本文选题：回热回质　切入点：吸附　出处：《化工学报》2016年S2期 　论文类型：期刊论文

【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10s。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。
[Abstract]:Adsorption refrigeration often uses regenerative regenerative cycle to improve the performance of the system. A series regenerative and similar regenerative cycle adsorption refrigeration system is studied. The main components of the system (including the evaporator used as a liquid-storage unit) are modeled by a three-layer heat transfer method. The simulation results show that the system performance coefficient increases monotonously with the increase of the refrigeration time. The cop and SCP increased first and then decreased with the increase of the regenerative time, and the optimal regenerative time was 10 s. The volatility of cop and SCP decreased with the prolongation of the regenerative time. The performance of the system. Cop and SCP increased with the increase of hot water, the increase of chilled water temperature and the decrease of cooling water temperature. The effects of hot water temperature on SCP and chilled water, cooling water temperature on COP and SCP showed linear change. The influence of hot water temperature on COP showed a secondary change.
【作者单位】：上海交通大学机械与动力工程学院;
【基金】：上海市科委科研计划项目(15DZ1201802)~~
【分类号】：TB657

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