Exergoeconomic optimization and environmental analysis of a novel solar-trigeneration system for heating, cooling and power production purpose

Baghernejad, A.; Yaghoubi, M.; Jafarpur, Khosrow

doi:10.1016/j.solener.2016.04.046

Cited by 88 publications

(24 citation statements)

References 29 publications

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“…7 On the other hand, the exergy efficiency of the present system is not so high, and it is around 21%. This value is characterized as an intermediate value because there are studies with higher exergy efficiencies, 4,7,10,15 while there are studies with lower or similar exergy efficiency. 9,11,12 The reason for the higher exergy efficiency in other studies is the use of fossil fuel combined with solar energy, as well as the production of hydrogen as a useful output with high exergy factor.…”

Section: Resultsmentioning

confidence: 99%

“…This system presents exergy efficiency up to 50% in the heating mode and up to 20% in the cooling mode, while it has a payback period of 5 years. Baghernejad et al examined the combination of PTC with gas turbine, and they found the maximum system exergy efficiency at 56%. Bellos and Tzivanidis investigated a trigeneration system based on an ORC with an ejector device, which presents 87% energy efficiency, 12% exergy efficiency, and a payback period of 5 years.…”

Section: Introductionmentioning

confidence: 99%

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Parametric analysis and yearly performance of a trigeneration system driven by solar‐dish collectors

et al. 2019

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Summary Solar‐driven polygeneration systems are promising technologies for covering many energy demands with a renewable and sustainable way. The objective of the present work is the investigation of a trigeneration system, which is driven by solar‐dish collectors. The examined trigeneration system includes an organic Rankine cycle (ORC), which operates with toluene, and an absorption heat pump, which operates with LiBr/H2O. The absorption heat pump is fed with heat by the condenser of the ORC, which operates at medium temperature levels (120°C to 150°C). The absorption heat pump produces both useful heat at 55°C and cooling at 12°C. The ORC produces electricity, and it is fed by the solar dishes. The examined ORC is a regenerative cycle with superheating. The total analysis is performed with a developed model in Engineering Equation Solver (EES). The system is investigated parametrically for different ORC heat‐rejection temperatures, different superheating levels in the turbine inlet, and various solar‐beam irradiation levels. Furthermore, the system is investigated on a yearly basis for the climate conditions of Athens (Greece) and for Belgrade (Serbia). It is found that the yearly system energy and exergy efficiencies are 108.39% and 20.92%, respectively, for Athens, while 111.38% and 21.50%, respectively, for Belgrade. The values over 100% for the energy efficiency are explained by the existence of a heat pump in the examined configuration. For both locations, the payback period is found close to 10 years and the internal rate of return close to 10%. The final results indicate that the examined configuration is a highly efficient and viable system, which operates only with a renewable energy source.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Parametric analysis and yearly performance of a trigeneration system driven by solar‐dish collectors

et al. 2019

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“…Moreover, the exergy and energy efficiencies of the plant were 45.6 and 46.17%, respectively. In another research, a combined cooling, heating, and power generation plant was optimized and the cost of fuel, exergy destruction, and environmental effects were reduced by 24.17, 38.87 and 24.17%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Exergetic, economic, and environmental analyses of combined cooling and power plants with parabolic solar collector

Javadi

Ahmadi

Khalaji

2019

Env Prog and Sustain Energy

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Due to the necessity of achieving the energy systems with improved efficiency, combined power plants are developing in recent decades. Moreover, employing renewable energy sources in the power generation and heating/cooling purposes is an attractive idea to obtain more environmentally benign energy systems. In the current study, a combined cooling and power (CCP) plant is analyzed based on exergy and economic concepts. Afterward, by adding lithium‐bromide refrigeration cycle and parabolic solar collectors, the plant is investigated. The exergy efficiency, carbon dioxide emission, and cost of generated electricity are evaluated on the basis of SPECO model. The results of the study show that thermal and exergy efficiencies of the CCP plant with the solar collector depend on various parameters and can be affected significantly. The efficiency of the plant after applying lithium‐bromide refrigeration cycle and the solar collector increased from 50.33 to 51.73%, while the exergy efficiency enhanced from 47.48 to 48.22%. In addition, it was concluded that adding the collector and absorption chiller leads to 1.5% reduction in environmental pollutants.

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“…The simultaneous operation and planning of the MCE system is, therefore, required [1,8]. In order to find the optimal size of CHP and CCHP, a united optimization problem of planning and operation strategy is presented in [36][37][38]. Furthermore, operation and planning is carried out simultaneously in an EH system along with reliability constraints [16].…”

Section: Introductionmentioning

confidence: 99%

Optimal Design of a Multi-Carrier Microgrid (MCMG) Considering Net Zero Emission

2017

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Abstract:In this paper, a two-stage optimum planning and design method for a multi-carrier microgrid (MCMG) is presented in the targeted operation period considering energy purchasing and the component's maintenance costs. An MCMG is most likely owned by a community or small group of public and private sectors comprising loads and distributed energy resources (DERs) with the ability of self-supply to regulate the flows of various energies to local consumers. The operation cost is undoubtedly reduced by selecting the proper components. In the proposed model, the investment and operation and maintenance costs of MCMG are simultaneously carried out in order to choose the right component and its size in the given period. Moreover, in this innovative model, net zero emission (NZE) is regarded as an environmental constraint. The genetic algorithm of MATLAB and the mixed-integer nonlinear programming (MINLP) technique of GAMS (general algebraic modeling system) software are used to solve the optimization problem. Illustrative examples show the efficiency of the proposed model.

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Exergoeconomic optimization and environmental analysis of a novel solar-trigeneration system for heating, cooling and power production purpose

Cited by 88 publications

References 29 publications

Parametric analysis and yearly performance of a trigeneration system driven by solar‐dish collectors

Parametric analysis and yearly performance of a trigeneration system driven by solar‐dish collectors

Exergetic, economic, and environmental analyses of combined cooling and power plants with parabolic solar collector

Optimal Design of a Multi-Carrier Microgrid (MCMG) Considering Net Zero Emission

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