Article
Thermodynamics
Aixiang Xu, Yizhang Wang, Tingting Song, Nan Xie, Zhiqiang Liu, Sheng Yang
Summary: In this paper, an innovative system that combines liquid dehumidification with absorption refrigeration driven by solar energy is proposed to improve the utilization of solar energy in hot summer and cold winter areas of China. The system's energy, exergy, and dehumidification performances in three typical seasons are analyzed and compared. The results show that the system has excellent dehumidification performance in rainy season and higher refrigeration performance in cooling season.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Thermodynamics
Yuhao Xu, Xiaobing Luo, Zhengkai Tu, Siew Hwa Chan
Summary: This paper presents the performance and multi-criteria assessment of a combined cooling, heating, and power system applied to a residence. The study investigates the system efficiency, economic performance, and environmental impact of the system under different control strategies. The results show that the system can provide stable energy supply and reduce energy consumption and environmental pollution.
Article
Chemistry, Physical
Armin Abdollahipour, Hoseyn Sayyaadi
Summary: This study proposes combining a fuel cell and an electrolyzer to create an electrochemical cooling system. By replacing the slow oxygen reaction with chlorine and bromine, the coefficient of performance (COP) of the cooling system is significantly improved. The effects of various operating parameters on the system's performance are evaluated, and the recommended cooling system shows a COP that is significantly higher than other cooling technologies.
JOURNAL OF POWER SOURCES
(2023)
Article
Green & Sustainable Science & Technology
Like Zhong, Erren Yao, Hansen Zou, Guang Xi
Summary: A novel combined cooling and power system integrating SOFC, SCO2 partial heating cycle, and ejector refrigeration cycle is proposed, with a multi-objective optimization required to balance conflicting system performance among thermodynamic, exergoeconomic, and environmental aspects.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Energy & Fuels
Haesung Jo, Jaemin Park, Insu Kim
Summary: With the increasing focus on the environment and safety, reducing reliance on coal-fired power generation and improving the environmental friendliness of power generation have become increasingly important. Using CCHP systems instead of coal-fired systems may face challenges, but purchasing power from external grids is essential in areas where CCHP systems are built. Optimizing the control algorithm for CCHP systems can improve energy efficiency, reduce costs, and minimize emissions.
Article
Energy & Fuels
Leyla Khani, Mahsa Mohammadpour, Mousa Mohammadpourfard, Saeed Zeinali Heris, Gulden Gokcen Akkurt
Summary: This article presents a quadruple-generation system combining a solid oxide fuel cell system, a generator absorber heat exchanger absorption refrigeration cycle, and a proton exchange membrane electrolyzer unit. The system is capable of utilizing most of the fuel energy while recovering waste heat and material. Comprehensive studies on the thermodynamic and environmental performances of the system reveal the impacts of key operating parameters. The optimization results demonstrate the potential to achieve a high exergy efficiency of 0.6443.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Thermodynamics
Jiangjiang Wang, Zhiheng Cui, Wenqi Yao, Shuojie Huo
Summary: This paper proposes a solid oxide fuel cell combined cooling, heating, and power system that integrates biomass gasification. The system can be divided into different configurations by adjusting the valve opening to change the waste heat mode. The performance of the system is evaluated under design conditions, and the influences of crucial parameters on syngas composition and system performance are investigated. The results show that the system has high power efficiency, energy and exergy efficiency, and relatively low total cost rate and CO2 emission rate. By implementing different configuration strategies, the system's exergy efficiency, heating to power ratio, and cooling to power ratio can be adjusted.
Article
Thermodynamics
Saman Khalilzadeh, Alireza Hossein Nezhad, Alessandro Romagnoli, Bakytzhan Akhmetov
Summary: This study examines the integration of an absorption heat transformer cycle in CCHP systems, demonstrating through comparisons of different configurations and system performance parameters the advantages of the proposed hybrid system in terms of energy consumption, environmental impact, and economic benefits.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Thermodynamics
Luzhi Tan, Changnian Chen, Zhiqiang Gong, Lijiang Xia
Summary: This study aims to present a comprehensive CCP/CHP system based on the integration of a modified SOFC-GT plant and a novel solar-assisted LiBr absorption unit. The system can achieve a balanced electricity and heat/cool output, and is suitable for microgrids that incorporate renewable energies.
Article
Physics, Multidisciplinary
Zhiheng Cui, Jiangjiang Wang, Noam Lior
Summary: A novel cooling, heating, and power system integrated with a solid oxide fuel cell and biomass gasification was proposed and analyzed, showing good energy and exergy efficiencies. However, adjustments to key parameters can have significant impacts on the system's performance.
Article
Thermodynamics
Yan Cao, Mohammad Zoghi, Hamed Habibi, Amir Raise
Summary: A novel multi-generation system is proposed to recover waste heat from a solid oxide fuel cell - gas turbine system, using five different subsystems to enhance energy efficiency and exergy efficiency, with the use of waste heat for hydrogen production. Despite contributing to increased total cost rate and total exergy destruction, the subsystems also lead to improved environmental performance and payback period of the entire system.
APPLIED THERMAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
K. Harby, K. M. Almohammadi
Summary: A novel solar-powered combined absorption-adsorption cooling system is proposed and investigated in this study, demonstrating higher cooling capacity and system efficiency compared to standalone absorption and adsorption chillers through simulation and experimental validation.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Article
Thermodynamics
Xinyue Hao, Shiquan Shan, Neng Gao, Guangming Chen, Qin Wang, Tangtang Gu
Summary: A novel combined cooling, heating and power system with solar energy spectral beam splitting was developed to improve the efficiency of solar energy utilization. By dividing the solar spectrum into high-frequency spectrum for power generation and low-frequency spectrum for thermal energy harvesting, it achieved a high-efficiency combined supply of cooling, heating and electricity.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Thermodynamics
Gao Yuefen, Yao Wenqi, Wang Jiangjiang, Cui Zhiheng
Summary: This study proposes a new method to use solar energy to generate syn gas fuel and supplies energy products for users. It analyzes the energetic and exergetic performances of the system and finds that increasing the working temperature and pressure of the solid oxide fuel cell can improve efficiency.
JOURNAL OF THERMAL SCIENCE
(2023)
Article
Thermodynamics
M. Hassan, Ibrahim I. El-Sharkawy, K. Harby
Summary: This paper theoretically investigates the performance of innovative combined absorption and adsorption cooling (ABC-ADC) systems using the same evaporating and condensing units. The proposed system is compared with other integrated systems and separate ABC-ADC systems. Results show that the proposed system has higher cooling capacity and COP compared to separate systems and significantly higher performance than a single-stage ADC system. The proposed system also has lower outlet chilled water temperature fluctuation compared to separate ABC-ADC system.
CASE STUDIES IN THERMAL ENGINEERING
(2023)