Multi-dimensions analysis of solar hybrid CCHP systems with redundant design

Yang, Xiaohui; Liu, Kang; Leng, Zhengyang; Liu, Tao; Zhang, Liufang; Mei, Linghao

doi:10.1016/j.energy.2022.124003

Cited by 38 publications

(2 citation statements)

References 29 publications

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“…A heat exchanger is often used to heat a low-temperature fluid or cool a hightemperature fluid in chemical and other industrial production. Its output can be expressed as [23]:…”

Section: Heat Exchanger (Hex)mentioning

confidence: 99%

Evaluation Study on a Novel Structure CCHP System with a New Comprehensive Index Using Improved ALO Algorithm

Wang

Zhou

et al. 2022

Sustainability

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The CCHP system is a reasonable and effective method to improve the current situation of energy use. Capacity allocation is of great significance in improving the performance of the CCHP system. Due to the particularity of chemical enterprises’ production process, the demand for cooling, heating, and power load is also relatively particular, which makes the dynamic loads challenging to be satisfied. Because of the above problems, the structure of the typical CCHP system is improved, embodied in the collocation of multi-stage lithium bromide chiller, and the use of various energy storage devices. Based on the improved ant lion intelligent optimization (ALO) algorithm, the comprehensive evaluation index coupled with energy benefit, economic benefit, and environmental benefit, is taken as the objective function, and the equipment capacity configuration of the CCHP system for chemical enterprises is studied. Considering winter, summer, and transition seasons, the results show that the system is better than the typical CCHP system. The annual cost savings of the new structural system are up to 13%, and the carbon dioxide emissions of the new structural system are reduced by up to 36.39%. The primary energy utilization rate of the new structure system is increased by 18%, and the comprehensive evaluation index also performs better. The optimal index can reach 0.814.

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“…A heat exchanger is often used to heat a low-temperature fluid or cool a hightemperature fluid in chemical and other industrial production. Its output can be expressed as [23]:…”

Section: Heat Exchanger (Hex)mentioning

confidence: 99%

Evaluation Study on a Novel Structure CCHP System with a New Comprehensive Index Using Improved ALO Algorithm

Wang

Zhou

et al. 2022

Sustainability

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show abstract

“…Chu et al [7] analyzed the performance of the PV-T/CCHP coupling system under the two strategies of FEL and thermal load following (FTL) from the aspects of energy, economy, and environment. Yang et al [8] used the advantages of redundant design to optimize the PV-T/CCHP coupling system and analyzed the performance of the system of multiple energy coupling. Wen et al [9] established a model of the PV/GSHP/CCHP coupling system in TRNSYS software, and compared the energy-saving, environmental protection, and economy of the PV/GSHP/CCHP coupling system under two different operation strategies (FTL and FEL).…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization study of CCHP-GSHP-PV-ST system under different climatic zone conditions

Zeng,

Long

2023

J. Phys.: Conf. Ser.

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In this research, a system with multiple energy sources of combined cooling, heating, and power (CCHP)/ground source heat pump (GSHP)/photovoltaic (PV)/solar thermal collector (ST) (CCHP-GSHP-PV-ST system) is constructed. And this system is combined with the operation strategy of following total electric demand, that is, giving priority to meeting the electrical load of the building, the additional power of the coupling system, and the power of driving the GSHP. Therefore, a model for multi-objective optimization of the CCHP-GSHP-PV-ST system based on energy, environment, and economic indicators is established, and the optimization model is resolved using the genetic algorithm. The load simulation of office buildings in representative cities of five climate zones in China (Harbin (severe cold climate), Beijing (cold climate), Kunming (mild climate), Guangzhou (hot summer and warm winter climate), Changsha (hot summer and cold winter climate)) was selected as the basis for coupling system optimization, and the multi-objective optimization study of CCHP-GSHP-PV-ST system under different climate zone conditions was carried out. The findings indicate: (1) Under various climatic zone conditions, the coupling system’s optimized composition varies a little; (2) The multi-energy coupled system of office buildings in Beijing (cold climate) has primary energy saving rates, carbon dioxide emission reduction rates, annual total cost saving rates, and comprehensive performance that are respectively 46.06%, 60.43%, 44.05%, and 50.18% better than the split-production system when compared to other climate zones.

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Objective Optimization for Combined Cooling Heating and Power System Operation Based on GA-PSO Algorithm

Zhou,

Wang,

et al. 2024

Communications in Computer and Information Science

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Multi-dimensions analysis of solar hybrid CCHP systems with redundant design

Cited by 38 publications

References 29 publications

Evaluation Study on a Novel Structure CCHP System with a New Comprehensive Index Using Improved ALO Algorithm

Evaluation Study on a Novel Structure CCHP System with a New Comprehensive Index Using Improved ALO Algorithm

Multi-objective optimization study of CCHP-GSHP-PV-ST system under different climatic zone conditions

Objective Optimization for Combined Cooling Heating and Power System Operation Based on GA-PSO Algorithm

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