Explorations of Integrated Multi-Energy Strategy under Energy Simulation by DeST 3.0: A Case Study of College Dining Hall

Yu Niu, Yingying Xiong (), Lin Chai, Zhiqian Wang, Linbin Li, Congxiu Guo, Qiulin Wang, Xuhui Wang and Yuqi Wang
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Yu Niu: School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, China
Yingying Xiong: School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, China
Lin Chai: Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
Zhiqian Wang: School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, China
Linbin Li: School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, China
Congxiu Guo: School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, China
Qiulin Wang: School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, China
Xuhui Wang: School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, China
Yuqi Wang: School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, China

Sustainability, 2024, vol. 16, issue 14, 1-18

Abstract: Buildings characterized by high energy consumption necessitate the implementation of efficient multi-energy complementary systems to achieve energy conservation and emission reduction objectives. College dining halls use a lot more electricity than typical residential buildings, despite their relatively small size. The dining hall at the Dongshan Campus of Shanxi University is employed as a representative case study in this research. By utilizing DeST 3.0 software, a comprehensive dynamic load analysis is conducted to estimate the annual energy consumption of the dining hall, with the ultimate goal of an energy-saving system being proposed based on the analysis results. Leveraging DeST 3.0 software, dynamic load characteristics were assessed, revealing an annual energy consumption of 2.39 × 10 6 kWh for the dining hall. Cooling accounted for 0.91 × 10 6 kWh, while heating requirements amounted to 0.24 × 10 6 kWh. These findings illustrate peak power consumption trends, seasonal variations, and potential avenues for energy conservation. To satisfy the heating, cooling, and electricity demands of the dining hall, an integrated energy system incorporating solar and wind energy, as well as utilizing restaurant kitchen garbage as a biomass source, was proposed. This study compares two solar energy utilization systems: photothermal and photovoltaic, with total capacities of 2.375 × 10 6 kWh and 2.52 × 10 6 kWh, respectively. The research outcomes underscore that Strategy 2, which integrates a photovoltaic system with wind and biomass energy, emerges as the optimal approach for load management. Ultimately, this investigation demonstrates the feasibility and promise of constructing a hybrid renewable energy system within a college dining hall setting, aligning with sustainability objectives and global trends toward environmentally responsible energy solutions.

Keywords: DeST 3.0; renewable energy hybrid system; solar energy; biomass energy; photovoltaics; photothermal (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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