Research on the Optimization Design of Solar Energy-Gas-Fired Boiler Systems for Decentralized Heating

Ming Tao, Yanzhe Yu, Huan Zhang, Tianzhen Ye, Shijun You and Mengting Zhang
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Ming Tao: School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
Yanzhe Yu: School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
Huan Zhang: School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
Tianzhen Ye: School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
Shijun You: School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
Mengting Zhang: School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China

Energies, 2021, vol. 14, issue 11, 1-27

Abstract: Solar energy-gas-fired boiler heating systems attract widespread attention due to their eco-friendly technologies and reasonable prices. In order to promote the application of a solar energy-gas-fired boiler system for decentralized heating, this study proposed a holistic method to optimize the combination of equipment specifications and control strategies of the system. A detailed mathematical model of the hybrid energy system was developed and validated by experiments to simulate various operating conditions and evaluate the optimal design results. A case study was conducted in Tianjin, China, and optimal schemes were obtained. The influence of different factors on the system’s annual comprehensive energy efficiency ratio (AEER) and annual cost (AC) were studied by sensitivity analysis; the results showed that the solar collector area was extremely valuable for the optimization of AEER and AC. The results of this study provide a reference for the optimization design of the solar energy-gas-fired boiler system, which is beneficial to the promotion of the utilization of solar energy.

Keywords: solar energy; gas-fired boilers; mathematical models; optimization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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