Thermodynamic performance analysis and optimization of a solar-assisted combined cooling, heating and power system

Wang, Jiangjiang; Lu, Yilong; Yang, Ying; Mao, Tianzhi

doi:10.1016/j.energy.2016.08.102

Cited by 109 publications

(30 citation statements)

References 32 publications

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“…Solar thermal energy is always serving as a heat source for ORC, ABC or direct heating in CCHP. Wang et al (2016) show that the solar thermal integrated CCHP system is more energy efficient but less exergy efficiency than the solar PV integrated system. However, due to the intermittent and daytime-occur-only characteristics, CCHP systems powered by solar energy are sensitive to weather variation in its performance and cost change in its payback.…”

Section: Renewable Energy Sourcesmentioning

confidence: 98%

A review of microgrid energy systems

Gao¹,

Hwang²,

Radermacher³

2018

Healthy, Intelligent and Resilient Buildings and Urban Environments

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Microgrid combined cooling, heating and power energy systems are under intensive investigation owing to expansion of renewable energy generation and development of advanced technologies in distributed energy generation. Multi-generation systems serve as one of the core parts in any microgrid energy systems. This review paper presents the summary of state-of-the-art technologies in these multi-generation systems. The first part introduces the energy structure based on energy sources and the latest renewable energy harvesting technologies for solar, biomass and geothermal energy. In the second part, prime movers, including small-scale ones used in a microgrid energy system, are summarized. The third part shows the expanded microgrid system configurations mainly for desalination. The fourth part describes the control and operation strategies for complex multi-generation systems. In the first three parts, insufficient investigation or research gaps are also pointed out. Overall, this paper systematically summaries recent progress in microgrid multigeneration system, and suggest future researches for designing and optimizing a microgrid energy system.

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Section: Renewable Energy Sourcesmentioning

confidence: 98%

A review of microgrid energy systems

Gao¹,

Hwang²,

Radermacher³

2018

Healthy, Intelligent and Resilient Buildings and Urban Environments

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“…Compared with traditional absorption systems, the ejector–absorption system has better performance from numerous aspects. Wang et al designed, optimized, and analyzed a combined heating, cooling, and electricity system integrated with a PV and photothermal collector for thermodynamic performance. The experiment results demonstrated that photothermal collectors have better integration performance.…”

Section: Introductionmentioning

confidence: 99%

A High‐Efficiency, Portable, Solar‐Powered Cooling System Based on a Foldable‐Flower Mechanism and Wireless Power Transfer Technology for Vehicle Cabins

Zhang

Feng

et al. 2020

Energy Tech

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In summer, the high temperature inside vehicles is a problem, because cooling a vehicle parked under the scorching sun is both time and energy consuming. Herein, a portable solar‐powered cooling system (SPCS) is proposed based on a foldable‐flower mechanism and wireless power transfer (WPT) technology. The proposed system consists of three main parts: a solar foldable‐flower module (SFFM), an energy transfer module, and a temperature control module. The SFFM is a novel foldable mechanism that achieves a high space utilization through a rotating process and a folding process, like a flower opening its petals. The SFFM, equipped with photovoltaic (PV) cells, collects solar energy and converts it into electricity. The energy transfer module stores electricity from the SFFM in a supercapacitor via a WPT unit. The temperature control module achieves automatic temperature regulation using a cooling device. Experimental results show that output power reaches up to 7.571 W with a load resistor of 5 Ω, whereas the efficiency of the WPT reaches up to 73.6% with a load resistor of 15 Ω. Moreover, thermal simulation results illustrate that the proposed system achieves an average temperature reduction of 27.45 °C, making it feasible and effective to cool a hot vehicle cabin.

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“…At present, primary energy accounts for 40% of the global energy used for power generation, and renewable energy only accounts for 3.6% [1]. The massive exploitation of fossil energy such as oil, coal and natural gas will not only affect the reserves of non-renewable energy [2], but also cause an increase in carbon dioxide emissions, which will lead to an increase in sea level and disturbances in the global climate system [3]. In response to environmental climate changes, countries have developed new energy development strategies.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Driving Factors of Photovoltaic Power Generation Efficiency: A Case Study in China

et al. 2019

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With the increasing consumption of fossil energy and changes in the ecological environment, meeting the energy demands required for industrial and economic development with clean and efficient power generation is a major challenge of our society. Solar energy is considered to be one of the most renewable and sustainable energy sources, and photovoltaic power generation has become an important research topic. This study combines data envelopment analysis (DEA) with Tobit regression analysis to assess the efficiency of photovoltaic power generation in China and analyze factors affecting efficiency to improve the efficiency of photovoltaic power generation. The results show that there are obvious regional differences in photovoltaic power generation efficiency in China. The phenomenon of focusing on economic development at the expense of the use of solar power generation still exists. The establishment of photovoltaic demonstration projects, the implementation of differential electricity price policies, and the promotion of photovoltaic precision poverty alleviation can alleviate economic pressure and effectively improve the efficiency of photovoltaic power generation.

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Thermodynamic performance analysis and optimization of a solar-assisted combined cooling, heating and power system

Cited by 109 publications

References 32 publications

A review of microgrid energy systems

A review of microgrid energy systems

A High‐Efficiency, Portable, Solar‐Powered Cooling System Based on a Foldable‐Flower Mechanism and Wireless Power Transfer Technology for Vehicle Cabins

Analysis of Driving Factors of Photovoltaic Power Generation Efficiency: A Case Study in China

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