STUDY ON OPTIMAL CONFIGURATION OF PV/T ASSISTED GROUND SOURCE HEAT PUMP DEFATTED HEATING SYSTEM

Shi Guohua; Li Haoran; Lei Xu; Fang Yuhan

doi:10.19912/j.0254-0096.tynxb.2025-0116

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (6) : 533-543. DOI: 10.19912/j.0254-0096.tynxb.2025-0116

STUDY ON OPTIMAL CONFIGURATION OF PV/T ASSISTED GROUND SOURCE HEAT PUMP DEFATTED HEATING SYSTEM

Shi Guohua¹, Li Haoran¹, Lei Xu¹, Fang Yuhan²

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Abstract

To address the high energy consumption and significant carbon reduction challenges in steel plate degreasing for industrial equipment manufacturing, this study proposes a novel PV/T-coupled ground-source heat pump heating system for degreasing （PV/T-GSHPHD） and its corresponding operational strategy. A comprehensive energy conversion model was established for system components, and an optimization configuration model was developed to enhance economic efficiency while ensuring soil thermal balance through typical scenario clustering analysis. The optimal system components and their respective capacities were determined based on these models. Results show that the optimal PV/T-GSHPHD system configuration consists of a PV/T module, a ground-source heat pump, a heat collection tank, and a thermal storage tank, with soil heat supplementation achieved via the PV/T module. Compared to a conventional electric boiler heating system, the PV/T-GSHPHD achieves 69.1% reduction in annual heating costs and 83.3% reduction in environmental costs, demonstrating significant economic and environmental advantages. The analysis of operating characteristics of the system on typical days indicates that the PV/T-GSHPHD effectively reduces grid peak loads year-round, with only 13% of its equivalent electricity sourced from the grid during summer, thereby alleviating regional electricity supply pressures. This study highlights the technical and economic viability of PV/T-GSHPHD as a sustainable alternative for industrial degreasing heating applications.

Key words

industrial heating / clean heating / photovoltaic/thermal / ground source heat pump / configuration optimization / scene clustering

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Shi Guohua, Li Haoran, Lei Xu, Fang Yuhan. STUDY ON OPTIMAL CONFIGURATION OF PV/T ASSISTED GROUND SOURCE HEAT PUMP DEFATTED HEATING SYSTEM[J]. Acta Energiae Solaris Sinica. 2026, 47(6): 533-543 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0116

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