基于灰箱模型的自循环散热器与空气源热泵耦合特性研究  

Coupling Characteristics of Self-driven Radiator and Air-source Heat Pump Based on Gray-box Model

作　　者：冯伟[1] 贾捷 田琦 尹丽媛 李风雷 LEE W L Feng Wei;Jia Jie;Tian Qi;Yin Liyuan;Li Fenglei;LEE W L(College of Civil Engineering,Taiyuan University of Technology,Taiyuan,030024,China;Nucleus Industry No.7 Research Design Institute,Taiyuan,030012,China;Department of Building Services Engineering,The Hong Kong Polytechnic University,Hong Kong,999077,China)

机构地区：[1]太原理工大学土木工程学院,太原030024 [2]中核第七研究设计院有限公司,太原030012 [3]香港理工大学屋宇设备工程学系,中国香港999077

出　　处：《制冷学报》2023年第6期43-51,共9页Journal of Refrigeration

基　　金：国家自然科学基金(51808372)资助项目。

摘　　要：为兼顾热泵供暖的舒适性与节能性,本文提出一种新型自循环散热器作为空气源热泵的室内末端。通过分析关键部件的运行特性,建立系统热力学灰箱模型,并对其可靠性进行验证。在此基础上,研究自循环散热器与空气源热泵的耦合特性,并利用EES与TRNSYS联合仿真的方法,分析该系统在典型建筑中应用的逐时运行规律和全年运行性能。结果表明:系统性能受多个因素的共同影响,且对压缩机运行频率的改变较为敏感;系统具有较快的热响应速度,能够营造稳定的室内温度环境;在太原市气象条件下,系统全年平均性能系数为2.67,典型工况的性能系数高于常规散热器系统50.28%,具有显著的节能效益。A novel self-driven radiator was developed to serve as the indoor terminal of an air-source heat pump system to improve the indoor comfort level and energy efficiency for space heating.By analyzing the operating characteristics of the most important system components,a thermodynamic gray-box model was established for the system,and its reliability was verified.On this basis,the coupling characteristics of the self-driven radiator and air-source heat pump were studied.Furthermore,the hourly operation and annual performance of the system in a typical building were analyzed using EES and TRNSYS.It was found that the system performance was affected by several factors and was more sensitive to changes in the compressor operating frequency.The system had a fast thermal response,which facilitated a stable indoor temperature environment.Under the typical meteorological conditions of Taiyuan,the annual coefficient of performance of the system was 2.67.The coefficient of performance under typical conditions was found to be 50.28%higher than that of the conventional radiator system,demonstrating evident energy-saving benefits.

关 键 词：空气源热泵 散热器 灰箱 仿真 能效 

分 类 号：TU832.23[建筑科学—供热、供燃气、通风及空调工程] TP391.9[自动化与计算机技术—计算机应用技术]