Exergoeconomic analysis and optimization of a solar driven dual-evaporator vapor compression-absorption cascade refrigeration system using water/CuO nanofluid

Boyaghchi, Fateme Ahmadi; Mahmoodnezhad, Motahare; Sabeti, Vajiheh

doi:10.1016/j.jclepro.2016.08.125

Cited by 70 publications

(12 citation statements)

References 42 publications

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“…The equations used to calculate the Purchase Equipment Costs (PEC) for the components of the ARS were: heat exchangers (Equation (12)), pump (Equation (13)), motor (Equation 14), where the sub-index "0" represents the reference of the studied component [35][36][37].…”

Section: Thermo-economic Analysismentioning

confidence: 99%

Thermo-Economic Assessment of a Gas Microturbine-Absorption Chiller Trigeneration System under Different Compressor Inlet Air Temperatures

2019

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This manuscript presents a thermo-economic analysis for a trigeneration system integrated by an absorption refrigeration chiller, a gas microturbine, and the heat recovery steam generation subsystem. The effect of the compressor inlet air temperature on the thermo-economic performance of the trigeneration system was studied and analyzed in detail based on a validated model. Then, we determined the critical operating conditions for which the trigeneration system presents the greatest exergy destruction, producing an increase in the costs associated with loss of exergy, relative costs, and operation and maintenance costs. The results also show that the combustion chamber of the gas microturbine is the component with the greatest exergy destruction (29.24%), followed by the generator of the absorption refrigeration chiller (26.25%). In addition, the compressor inlet air temperature increases from 305.15 K to 315.15 K, causing a decrease in the relative cost difference of the evaporator (21.63%). Likewise, the exergo-economic factor in the heat exchanger and generator presented an increase of 6.53% and 2.84%, respectively.

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Section: Thermo-economic Analysismentioning

confidence: 99%

Thermo-Economic Assessment of a Gas Microturbine-Absorption Chiller Trigeneration System under Different Compressor Inlet Air Temperatures

2019

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“…This leads to an increase in the COP value [ 22 , 23 ]. There are many publications addressing exergy and exergoeconomic analyses of combined VCR–VAR systems that use different mixtures for the absorption cycle (e.g., H 2 O-LiBr and NH 3 -H 2 O) and different working fluids for the compression cycle (e.g., R22, R134a, R717, and R1234yf) [ 20 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ]. Agarwal et al [ 20 ] analyzed an absorption-compression cascade refrigeration system (ACCRS) by combining a series flow triple-effect H 2 O-LiBr VARS with a single VCRS operated with R1234yf.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the designer’s interpretation plays an important role in obtaining improved process designs [ 32 ]. Several authors have applied genetic algorithms (GAs) to optimize ACCRS [ 24 , 33 ]. By using the NSGA-II technique, Jain et al [ 33 ] solved a MOO problem for a single-effect H 2 O-LiBr VARS coupled to a VCRS operated with R410A, for a specified cooling capacity of 170 kW.…”

Section: Introductionmentioning

confidence: 99%

Superstructure-Based Optimization of Vapor Compression-Absorption Cascade Refrigeration Systems

Mussati

Morosuk

Mussati

2020

Entropy

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A system that combines a vapor compression refrigeration system (VCRS) with a vapor absorption refrigeration system (VARS) merges the advantages of both processes, resulting in a more cost-effective system. In such a cascade system, the electrical power for VCRS and the heat energy for VARS can be significantly reduced, resulting in a coefficient of performance (COP) value higher than the value of each system operating in standalone mode. A previously developed optimization model of a series flow double-effect H2O-LiBr VARS is extended to a superstructure-based optimization model to embed several possible configurations. This model is coupled to an R134a VCRS model. The problem consists in finding the optimal configuration of the cascade system and the sizes and operating conditions of all system components that minimize the total heat transfer area of the system, while satisfying given design specifications (evaporator temperature and refrigeration capacity of −17.0 °C and 50.0 kW, respectively), and using steam at 130 °C, by applying mathematical programming methods. The obtained configuration is different from those reported for combinations of double-effect H2O-LiBr VAR and VCR systems. The obtained optimal configuration is compared to the available data. The obtained total heat transfer area is around 7.3% smaller than that of the reference case.

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“…This work presents a summary of literature of the main advances in compression-absorption systems for refrigeration, assuming the cascade configuration. A summary is shown in Table 1; the compressive review considers the period from 2006 through 2020 and the contributions of the articles [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. As can be seen, the research line on cascade configuration involving the absorption cycle and compression cycle has been growing over time, and mainly carried out in the theoretical and thermodynamic field.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of a Compression–Absorption Cascade System Operating with NH3-LiNO3, NH3-NaSCN, NH3-H2O, and R134a as Working Fluids

Herrera-Romero

Colorado-Garrido

2020

Processes

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This research presents a comprehensive bibliographic review from 2006 through 2020 about the state of the art of the compression–absorption cascade systems for refrigeration. In consequence of this review, this research identifies the significant development of systems that consider lithium bromide as a working fluid; however, the use of other working fluids has not been developed. This study is motivated toward the development of a parametric analysis of the cascade system using NH3-LiNO3, NH3-NaSCN and NH3-H2O in the absorption cycle and R134a in the compression cycle. In this study, the effect of the heat source temperature, condensation temperature in the compression cycle, the use of heat exchangers in the system (also known as economizers) and their contribution to the coefficient of performance is deepened numerically. The economizers evaluated are the following: an internal heat exchanger, a refrigerant heat exchanger, a solution refrigerant heat exchanger, and a solution heat exchanger. Mass and energy balance equations—appropriate equations to estimate the thermophysical properties of several refrigerant–absorbent pairs—were used to develop a thermodynamic model. The studied heat source temperature range was from 355 to 380 K, and the studied condensation temperature range in the compression cycle was from 281 to –291 K; additionally, the importance of each economizer on the coefficient of performance was numerically estimated. In this way, NH3-NaSCN solution in the absorption cycle and R134a in the compression cycle provided promising numerical results with the highest COPs (coefficient of performance).

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Exergoeconomic analysis and optimization of a solar driven dual-evaporator vapor compression-absorption cascade refrigeration system using water/CuO nanofluid

Cited by 70 publications

References 42 publications

Thermo-Economic Assessment of a Gas Microturbine-Absorption Chiller Trigeneration System under Different Compressor Inlet Air Temperatures

Thermo-Economic Assessment of a Gas Microturbine-Absorption Chiller Trigeneration System under Different Compressor Inlet Air Temperatures

Superstructure-Based Optimization of Vapor Compression-Absorption Cascade Refrigeration Systems

Comparative Study of a Compression–Absorption Cascade System Operating with NH3-LiNO3, NH3-NaSCN, NH3-H2O, and R134a as Working Fluids

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