A novel Kalina power-cooling cycle with an ejector absorption refrigeration cycle: Thermodynamic modelling and pinch analysis

Rashidi, Jouan

doi:10.1016/j.enconman.2018.02.040

Cited by 41 publications

(9 citation statements)

References 27 publications

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“…Rostamzadeh et al 29 applied an ejector refrigeration cycle and heat pump in order to recover the output heat dissipation of micro‐turbine of Kalina and Rankine cycles and generated cooling and heating capacity at the microscale. Rashidi and Yoo 30 performed energy and economic study on Kalina power‐cooling cycle with an ejector absorption refrigeration cycle and applied multi‐objective optimization to their suggested system, which led to enhancing the cooling and power production by about 13.6%. Khaliq et al 31 studied power and absorption cooling systems based on solar energy from the energy and exergetic perspectives.…”

Section: Introductionmentioning

confidence: 99%

Proposal and evaluation of a solar‐based polygeneration system: Development, exergoeconomic analysis, and multi‐objective optimization

Azizi

Nedaei

Yari

2022

Intl J of Energy Research

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This article reviews a novel poly-generation system based on a solar power tower for power generation, cooling capacity, freshwater creation, and hydrogen production. Comprehensive thermodynamic assessments are conducted to determine the performance of the proposed model. At basic operating circumstances, the simulation results in the generation of 7.871 MW of electricity, 10.05 kg/s of drinking water, 8.788 MW cooling capacity, and hydrogen at a rate of 0.2445 kg/h accompanied by 41.18% energy efficiency and a sum unit cost of products of 6.583 $/GJ. Then, parametric research is going to determine the influence of the proposed system's primary parameters on its performance.Additionally, the gray wolf optimization technique is used to optimize the exergetic efficiency with sum unit cost products and freshwater rate of production under various multi-objective optimization situations. The first optimization scenario's results indicate that the 53.06% exergetic efficiency and 5.44 $/GJ sum unit cost products are the optimum point, and in the second optimization scenario, the optimum point is 47.64% exergetic efficiency and 9.61 kg/s freshwater production rate. Finally, the performance of the suggested method is demonstrated using a case study of New York, United States of America, and represented the maximum performance in July with 5.2 MW net power and 39.6% exergetic efficiency.

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Section: Introductionmentioning

confidence: 99%

Proposal and evaluation of a solar‐based polygeneration system: Development, exergoeconomic analysis, and multi‐objective optimization

Azizi

Nedaei

Yari

2022

Intl J of Energy Research

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“…Rashidi and Yoo [12] proposed a new combination of Kalina power cycle and the ejector absorption refrigeration cycle with an NH3-H2O pair as a working fluid. A comparison between Kalina power cooling cycle (KPCC) and Kalina power cooling with ejector (KPCE) under same condition in terms of cycle efficiency, and refrigeration output was performed.…”

Section: Introductionmentioning

confidence: 99%

Effect of Operating Conditions on Modified Kalina Cycle Performance

Nassir¹,

Shahad²

2022

IJHT

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Simple Kalina cycle system (SKCS) is used for low temperature, intermediate temperature and high temperature heat recoveries. However, its efficiency is rather low. Therefore, a modification is suggested to improve its efficiency. In this work a computer program is developed to predict the energy-exergy performance of a modified Kalina Cycle System (MKCS) using aqua ammonia solution. It consists of heat recovery vapor generator (HRVG), condenser, heat exchanger, separator, turbine, throttling valve, absorber and pump. The modification is implemented by introducing a heat exchanger (HE) between the separator and expansion valve. This HE is used to reheat the work solution which comes from the pump by the high temperature hot weak solution which comes from the separator. The effect of many operating conditions such as dryness fraction (DF) at separator inlet, low pressure and ammonia (NH3) mass fraction with constant high pressure on cycle performance is studied. The results show that the modified cycle efficiency is higher than the simple cycle efficiency by about 33.6% while the net power by about 27.8%. The highest efficiency and highest net output power are 14.7% and 0.5641 kW respectively. The exergy efficiencies for modified Kalina and simple Kalina are 24.8% and 11.7% respectively.

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“…Hua et al [29] proposed and investigated a modified KPCCC driven by medium and low-temperature waste heat and adding an evaporator and a subcooler. Ghaebi et al [30] and Rashidi and Yoo [31] proposed and analyzed KPCCCs incorporated ejector cooling and a KC. Shokati et al [32] investigated three configurations of absorption refrigeration/Kalina cogeneration cycles employing double effects, single effect with four pressure levels and single effect with two absorbers and a rectifier.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Analysis of Kalina Based Power and Cooling Cogeneration Cycle Employed Once Through Configuration

Kim

2019

Energies

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The Kalina cycle (KC) has been considered one of the most efficient systems for harvesting low grade heat since its proposal and various modifications have been proposed. Recently, Kalina based power and cooling cogeneration cycles (KPCCCs) have attracted much attention and many studies have been conducted. In this paper, a cogeneration cycle of power and absorption refrigeration based on the Kalina cycle system 11 (KCS-11) is proposed. The cycle combines a KC and aqua-ammonia absorption refrigeration cycle (ABR) with once through configuration. Compared to the stand-alone KC, the proposed cycle showed significantly higher energy efficiency—as high as 60%—without the use of rectifier, superheater or subcooler. Parametric analysis showed that the ammonia fraction, separator pressure and source temperature have a significant impact on the system performance including mass flow rates, heat transfers, power generation, cooling capacity, energy efficiencies and optimum ammonia fraction for the maximum energy efficiency.

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A novel Kalina power-cooling cycle with an ejector absorption refrigeration cycle: Thermodynamic modelling and pinch analysis

Cited by 41 publications

References 27 publications

Proposal and evaluation of a solar‐based polygeneration system: Development, exergoeconomic analysis, and multi‐objective optimization

Proposal and evaluation of a solar‐based polygeneration system: Development, exergoeconomic analysis, and multi‐objective optimization

Effect of Operating Conditions on Modified Kalina Cycle Performance

Thermodynamic Analysis of Kalina Based Power and Cooling Cogeneration Cycle Employed Once Through Configuration

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