OPTIMISED DESIGN METHOD FOR COMBINING SOLAR ENERGY AND ORIGINAL HEAT SOURCE FOR HEATING IN CAPACITY INCREASING TOWNS

Hou Shenglei; Wang Dengjia; Chen Ran; Zhou Yong; Liu Yanfeng; Liu Jiaping

doi:10.19912/j.0254-0096.tynxb.2024-0658

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (8) : 537-544. DOI: 10.19912/j.0254-0096.tynxb.2024-0658

OPTIMISED DESIGN METHOD FOR COMBINING SOLAR ENERGY AND ORIGINAL HEAT SOURCE FOR HEATING IN CAPACITY INCREASING TOWNS

Hou Shenglei^1,2, Wang Dengjia^1,2, Chen Ran³, Zhou Yong¹, Liu Yanfeng^1,2, Liu Jiaping¹

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Abstract

A new combined heating method integrating a solar heating system with the original gas boiler and other heat sources is proposed in this paper, in response to the issue that the heating system cannot satisfy the demand generated by the capacity increase of the towns in West China. The goal of the capacity matching optimization for the combination solar and gas boiler heating system is to minimize annual cost while accounting for the capacity matching issue between the two systems. The TRNSYS platform is employed for simulation, and the Hooke-Jeeves function is used for calculation. A suggested connection scheme for the combined heating system of solar energy and the existing heat source is provided through the case study calculation. The system optimization configuration methods are proposed, and the value ranges of the scale of the solar collection system and the capacity of the heat storage system are given under various conditions of capacity increase rate. In terms of system energy efficiency, the total energy consumption and the natural gas consumption of the combined heating system are 45.9% to 81.5% and 46.9% to 83.1%, respectively, lower than that of the gas boiler system.

Key words

solar heating / gas fired boilers / system design / capacity increasing towns / combined heating system

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Hou Shenglei, Wang Dengjia, Chen Ran, Zhou Yong, Liu Yanfeng, Liu Jiaping. OPTIMISED DESIGN METHOD FOR COMBINING SOLAR ENERGY AND ORIGINAL HEAT SOURCE FOR HEATING IN CAPACITY INCREASING TOWNS[J]. Acta Energiae Solaris Sinica. 2025, 46(8): 537-544 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0658

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