谷电储能供暖系统优化设计方法  

Optimization design method of valley power energy storage heating system

作　　者：孙婉玉 蒋天茁 付强 王昌龙 SUN Wanyu;JIANG Tianzhuo;FU Qiang;WANG Changlong(School of Civil Engineering and Architecture,Anhui University of Technology,Ma'anshan 243002,China;Key Laboratory of Shallow Geothermal Energy,Ministry of Natural Resources,Beijing,100195 China)

机构地区：[1]安徽工业大学建筑工程学院,安徽马鞍山243002 [2]自然资源部浅层地热能重点实验室,北京100195

出　　处：《电力科技与环保》2024年第3期286-295,共10页Electric Power Technology and Environmental Protection

基　　金：自然资源部浅层地热能重点实验室开放课题(KLSGE202401-15)。

摘　　要：为应对北方清洁供暖,本文提出了一种谷电储能供暖系统,旨在充分利用地热能和储能技术的优势,满足冬季清洁供暖。首先,对该系统进行了介绍。然后,针对该系统提出了一种优化设计方法,在系统满足建筑在典型年的逐时热负荷要求的基础上,以典型年的年化总成本(包括年化初始成本和年化运行成本)为目标函数,进而通过求解最小目标函数对各设备容量进行优化设计。其中,在典型年的年化运行成本计算中,将所采用的系统运行策略进行了详细介绍。最后,以北方地区某多层办公建筑冬季供暖为例进行计算。在未采用优化设计方法前,系统所需的年化总成本为84.26万元,而采用该方法后,该系统所需的最小年化总成本为61.90万元。经过优化设计后,地源热泵机组额定制热量、蓄热水箱体积以及电锅炉额定制热量的最佳容量分别为1276369 W、1022 m^(3)和2604791 W。本文提出的综合能源复合系统及其优化设计方法为北方地区提供了清洁供暖的选择,对我国能源转型具有重要意义。In order to cope with the clean heating in the north,this paper proposes a valley power energy storage heating system,which aims to make full use of the advantages of geothermal energy and energy storage technology to meet the clean heating in winter.Firstly,the system is introduced.Then,an optimization design method is proposed for the system.On the basis that the system meets the hourly heat load requirements of the building in the typical year,the annual total cost of the typical year(including annual initial cost and annual operating cost)is taken as the objective function,and then the capacity of each equipment is optimized by solving the minimum objective function.Among them,in the annual operation cost calculation of the typical year,the system operation strategy adopted is introduced in detail.Finally,taking the winter heating of a multi-storey office building in the northern region as an example.Before the optimization design method is adopted,the total annual cost of the system is 842600 yuan,while after the optimization design method is adopted,the minimum annual cost of the system is 619000 yuan.After optimization design,the optimal capacity of the rated heating capacity of the ground source heat pump unit,the volume of the heat storage tank and the rated heating capacity of the electric boiler in the heating system are 1276369 W,1022 m^(3) and 2604791 W,respectively,and the corresponding minimum annual total cost is 619035 yuan.The integrated energy composite system and its optimization design method proposed in this paper provide a choice of clean heating for the northern region,which is of great significance to China's energy transformation.

关 键 词：储能 地源热泵 电锅炉 蓄热水箱 系统优化设计 

分 类 号：TK02[动力工程及工程热物理] TU833[建筑科学—供热、供燃气、通风及空调工程]