Heating Characteristics and Economic Analysis of a Controllable On-Demand Heating System Based on Off-Peak Electricity Energy Storage

作     者：YIN Shaowu SHI Yongle TONG Lige LIU Chuanping WANG Li DING Yulong YIN Shaowu;SHI Yongle;TONG Lige;LIU Chuanping;WANG Li;DING Yulong

作者机构：School of Energy and Environmental EngineeringUniversity of Science and Technology BeijingBeijing 100083China Beijing Key Laboratory of Energy Saving and Emission Reduction in Metallurgical IndustryUniversity of Science and Technology BeijingBeijing 100083China College of Chemical EngineeringUniversity of BirminghamBirmingham B152TTUK 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2020年第29卷第2期

页      面：343-351页

核心收录：

学科分类：080802[工学-电力系统及其自动化] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 081404[工学-供热、供燃气、通风及空调工程] 0814[工学-土木工程] 0702[理学-物理学] 

基　　金：The author gratefully acknowledges the financial support from the National Key Research and Development Plan of China(No.2018YFB0605901) 

主　　题：energy storage on-demand heating off-peak electricity heating characteristics heat storage characteristics 

摘      要：The working principle of a controllable on-demand heating system based on off-peak electricity energy storage(COHSBOEES) is as follows: the cheap off-peak electricity energy is converted into heat energy for storage in the evening, and the heat energy can be extracted on demand for heating during daytime peak or flat electricity periods. This technology can promote the smooth operation of the power grid, solve the problem of peak regulation for the electrical network, and promote renewable energy consumption. Based on the controllable on-demand heating strategy, a COHSBOEES for a heating area of 1000 m^2 was designed and built. Variations in the energy consumption and operating cost of the COHSBOEES in different heating situations were analyzed. The results showed that, off-peak electricity energy storage for heating was energy saving in comparison with central heating when the heating intensity of the COHSBOEES was 70 W/m^2 and the on-demand heating rate was less than 73.0%, and the off-peak electricity energy storage for heating was energy saving at any on-demand heating rate when the COHSBOEES had a heating intensity of 50 W/m^2. After the COHSBOEES has been running for three complete heating seasons, when the off-peak electricity price was 0.25 yuan/kW·h, the energy consumption cost of the COHSBOEES can be saved by 77.6% in comparison with central heating.