Investigation on a time-sharing heating system using a high-density composite phase change heat storage material-an electric boiler

doi:10.19799/j.cnki.2095-4239.2022.0214

Abstract

Abstract:

This study explores a time-sharing heating system using an electric boiler, which is a high-density composite phase change material. By combining the variation law of the load coefficient of heating in winter with outdoor ambient temperature, the optimization design of the heat storage device of the time-sharing heating system was performed, and the optimization principle of the time-sharing heating system was proposed. Considering the demonstration project of urban heating as an example, the time-sharing and proportion heating system could save the boiler room's space by 31%, initial investment by 33%, and operating cost by 46%. Furthermore, the power load of the boiler room can be reduced and pressure of power capacity can be increased, compared with the traditional direct-heat electric boiler. The heating load analysis revealed that the time-sharing heating system could heat peak regulation and equipment reserve function in extremely cold weather.

Key words: composite phase change heat storage materials, time-sharing heating system, operating costs, heating support

CLC Number:

TK 02

Hao YIN, Zhiwei TANG, Hao WANG, Yi JIN, Yulong DING. Investigation on a time-sharing heating system using a high-density composite phase change heat storage material-an electric boiler[J]. Energy Storage Science and Technology, 2022, 11(9): 3003-3010.

Figures/Tables 9

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序号	项目		直热式电锅炉	分时配比供热系统	全蓄热式供热系统
1	循环水泵 /kWh	峰电	28800	28800	28800
		平电	28800	28800	28800
		低谷电	28800	28800	28800
2	循环水泵运行费用 /(元/季度)		67979.52	67979.52	67979.52
3	供热设备 /kWh	峰电	384960	0	0
		平电	384960	235200	85440
		低谷电	384960	919680	1069440
4	供热设备运行费用 /(元/季度)		908659.58	459052.70	389054.88
5	年运行费用 /(元/季度)		976639.10	527032.22	457034.40

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