基于TRNSYS的太阳能和电磁能联合供暖系统优化研究  

Optimization of Solar Coupled Electromagnetic Energy Heating System Based on TRNSYS

作　　者：冯国会(指导)[1] 王刚[1] 赫娜[1] 李奇岩 常莎莎[1] 曹也 FENG Guo-hui;WANG Gang;HE Na;LI Qi-yan;CHANG Sha-sha;CAO Ye(Municipal and Environmental Engineering Institute,Shenyang Jianzhu University,Shenyang 110168,China)

机构地区：[1]沈阳建筑大学市政与环境工程学院,沈阳110168

出　　处：《建筑节能（中英文）》2022年第11期72-79,共8页Building Energy Efficiency

基　　金：“十三五”国家重点研发计划资助项目:村镇建筑多能互补系统和模块化高效供热热源及用热末端装备研发(2018YFD1100705-02)。

摘　　要：针对沈阳地区一典型农宅设计了一套太阳能真空管集热器和电磁能联合供暖系统。为了实现系统关键参数的优化匹配,研究以费用年值为目标函数,基于TRNSYS动态模拟平台建立仿真模型,选择集热器面积、水箱体积及电磁能功率作为优化变量,在整个供暖季工况下,对满足室内热负荷情况下的配置采用费用年值法进行对比,并对最优配置下系统的性能进行了分析,比较了相同水箱容积下耦合系统相对于电供暖系统的节能率。结果表明:在供暖面积为97.74 m^(2)、供暖末端为地暖盘管、满足室内主要房间供暖温度14℃的条件下,太阳能真空管集热器面积取15 m^(2),水箱体积为2 m^(3),电磁能功率为12 kW时系统的经济效益最优,初投资较设计值可节省24.36%,供暖季的太阳能保证率为50.79%,该方案相对于电供暖系统可节省电能2344 kW·h。A set of solar vacuum tube collector and electromagnetic energy combined heating system was designed for a typical detached building in Shenyang. In order to realize the optimal matching of key parameters, a simulation model was established based on the dynamic simulation platform of TRNSYS. The annual cost was selected as the objective function, and the collector area, storage tank volume and electromagnetic energy unit power were selected as the optimization variables. The annual cost method is adopted to compare the configurations that meet the indoor thermal load in the heating period operating conditions. The performance under the optimal configuration was analyzed, and the energy saving rate of the coupled system relative to the electric heating system under the same water tank volume was compared. The results show that the economic benefits of the system are optimal when the collector area is 15 m^(2), storage tank volume is 2 m^(3) and the electromagnetic energy unit power is 12 kW under the condition of heating a detached house whose main rooms’ temperature is set to 14 ℃, with a heating area of 97.74 m^(2) and a floor heating system as the terminal. The initial investment can be saved by 24.36% compared with the design value. The solar fraction in the heating season is 50.79%. Compared with the electric heating system, this scheme can save 2344 kW·h of electricity.

关 键 词：联合供暖 太阳能 电磁能 系统优化 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程] TK519[动力工程及工程热物理—热能工程]