Thermo-economic analysis of a low-cost greenhouse thermal solar plant with seasonal energy storage

被引:21
作者
Tafuni, A. [1 ]
Giannotta, A. [1 ]
Mersch, M. [2 ]
Pantaleo, A. M. [2 ]
Amirante, R. [1 ]
Markides, C. N. [2 ]
De Palma, P. [1 ]
机构
[1] Politecn Bari, Dept Mech Math & Management, Via Re David,200, I-70125 Bari, Italy
[2] Imperial Coll, Dept Chem Engn, Clean Energy Proc CEP Lab, South Kensington Campus, London SW7 2AZ, England
关键词
Thermal storage; Dual-media; Greenhouse; HEAT-STORAGE; PERFORMANCE EVALUATION; SYSTEM;
D O I
10.1016/j.enconman.2023.117123
中图分类号
O414.1 [热力学];
学科分类号
摘要
Reduction of greenhouse gas emissions is today mandatory to limit the increase of ambient temperature. This paper provides a numerical study of a thermal solar plant using a seasonal dual-media sensible heat thermal energy storage system for supplying the total energy demand of a greenhouse located in the South of Italy, avoiding the use of the gas boiler. The aim of the work is to assess the technical and economic performance of a low-cost pit storage system, made of gravel and water, placed under the greenhouse to save surface. The study provides an original analysis of the charging and discharging phases during one year of operation on the basis of the real hourly heating demand and on real weather data. A sensitivity analysis of the levelized cost of heat is carried on with respect to the solar-collector area and to the storage-pit volume. The analysis shows that a minimum-cost design solution exists to cover 100% of the heat demand with an estimated levelized cost of heat of 153.3 EUR/MWh. The results demonstrate that dual-media thermal energy storage systems with solar thermal collectors represent a viable solution for reducing the environmental impact of greenhouses.
引用
收藏
页数:11
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