Exergy, exergo-economic, and exergy-pinch analyses (EXPA) of the kalina power-cooling cycle with an ejector

Abstract This paper intends to optimize a new power and cooling cogeneration system, Kalina power-cooling with an ejector cycle (KPCE). The cycle combines the Kalina power cycle and the ejector absorption refrigeration cycle, with an ammonia-water mixture as the working fluid. To this aim, given the thermodynamic model, the potential improvements to the KPCE components are identified by performing exergy and exergo-economic analyses. Then, the system is optimized through a combination of exergy and pinch analyses (EXPA) to find out the direction of improvement and modifications of the system. This system operates with a thermal efficiency of 12.9% and power-cooling efficiency of 25%, providing 459 kW of power and 439.5 kW of cooling. KPCE showed a total exergy efficiency and exergy destruction of 69.8% and 1076 kW, respectively. Components with the highest exergy destruction and lowest exergy efficiency and unit cost rate are identified. According to EXPA, the system achieved a 5% lower overall cost rate and higher cooling generation, which resulted in higher thermodynamic efficiencies. The modified KPCE showed increases of 32%, 36%, and 32% in thermal, power-cooling, and exergy efficiencies, respectively. Compared with other Kalina power-cooling cycles, the optimized KPCE is introduced as a high-performance power-cooling cogeneration system.

[1]  Marc A. Rosen,et al.  Exergoeconomic comparison of double effect and combined ejector-double effect absorption refrigeration systems , 2013 .

[2]  W. Gu,et al.  Theoretical and experimental investigation of an organic Rankine cycle for a waste heat recovery system , 2009 .

[3]  E. Stefanakos,et al.  A REVIEW OF THERMODYNAMIC CYCLES AND WORKING FLUIDS FOR THE CONVERSION OF LOW-GRADE HEAT , 2010 .

[4]  Anthony Paul Roskilly,et al.  Thermodynamic modelling and parameter determination of ejector for ejection refrigeration systems , 2017 .

[5]  ChangKyoo Yoo,et al.  Thermoeconomic and environmental analyses of a low water consumption combined steam power plant and refrigeration chillers – Part 1: Energy and economic modelling and analysis , 2016 .

[6]  Mortaza Yari,et al.  On the exergoeconomic assessment of employing Kalina cycle for GT-MHR waste heat utilization , 2015 .

[7]  M Ouzzane,et al.  Model development and numerical procedure for detailed ejector analysis and design , 2003 .

[8]  Iman Janghorban Esfahani,et al.  Thermodynamic and economic studies of two new high efficient power-cooling cogeneration systems based on Kalina and absorption refrigeration cycles , 2016 .

[9]  ChangKyoo Yoo,et al.  Exergetic and exergoeconomic studies of two highly efficient power-cooling cogeneration systems based on the Kalina and absorption refrigeration cycles , 2017 .

[10]  M. J. Moran,et al.  Thermal design and optimization , 1995 .

[11]  Robin Smith,et al.  Chemical Process: Design and Integration , 2005 .

[12]  A. Hasan,et al.  First and second law analysis of a new power and refrigeration thermodynamic cycle using a solar heat source , 2002 .

[13]  Mohammad Mehdi Rashidi,et al.  Analysis of a combined power and ejector-refrigeration cycle using low temperature heat , 2013 .

[14]  Ibrahim Dincer,et al.  Thermodynamic and exergoenvironmental analyses, and multi-objective optimization of a gas turbine power plant , 2011 .

[15]  P. Nag,et al.  Exergy analysis of the Kalina cycle , 1998 .

[16]  Ibrahim Dincer,et al.  Exergy: Energy, Environment and Sustainable Development , 2007 .

[17]  Xinguo Li,et al.  A Kalina cycle with ejector , 2013 .

[18]  Kun Zhang,et al.  Evaluation of ejector performance for an organic Rankine cycle combined power and cooling system , 2016 .

[19]  Yasuyuki Ikegami,et al.  Performance Analysis of the Low Temperature Solar-Boosted Power Generation System—Part II: Thermodynamic Characteristics of the Kalina Solar System , 2013 .

[20]  ChangKyoo Yoo,et al.  Combined pinch and exergy analysis for energy efficiency optimization in a steam power plant , 2010 .

[21]  M. Balistrou,et al.  Experimental study of a low grade heat driven ejector cooling system using the working fluid R245fa , 2017 .

[22]  Abdelkader Mami,et al.  Solutions based on renewable energy and technology to improve the performance of refrigeration systems , 2016 .

[23]  Yiping Dai,et al.  Exergy analysis, parametric analysis and optimization for a novel combined power and ejector refrigeration cycle , 2009 .

[24]  I. J. Esfahani,et al.  Efficient thermal desalination technologies with renewable energy systems: A state-of-the-art review , 2016, Korean Journal of Chemical Engineering.

[25]  Hadi Rostamzadeh,et al.  Thermodynamic and thermoeconomic analysis and optimization of a novel combined cooling and power (CCP) cycle by integrating of ejector refrigeration and Kalina cycles , 2017 .

[26]  Bodo Linnhoff,et al.  Overall design of low temperature processes , 1994 .

[27]  B. Linnhoff,et al.  Integration of a New Process Into an Existing Site: A Case Study in the Application of Pinch Technology , 1991 .

[28]  J. Keenan,et al.  An Investigation of Ejector Design by Analysis and Experiment , 1950 .

[29]  G. K. Alexis,et al.  Performance parameters for the design of a combined refrigeration and electrical power cogeneration system , 2007 .

[30]  A. Behbahaninia,et al.  A novel ammonia-water combined power and refrigeration cycle with two different cooling temperature levels , 2017 .

[31]  Noam Lior,et al.  Thermoeconomic analysis of a low-temperature multi-effect thermal desalination system coupled with a , 2011 .

[32]  Bin-Juine Huang,et al.  A 1-D analysis of ejector performance , 1999 .

[33]  X. X. Zhu,et al.  Combining pinch and exergy analysis for process modifications , 1997 .

[34]  Yiping Dai,et al.  Parametric analysis for a new combined power and ejector–absorption refrigeration cycle , 2009 .

[35]  S. De,et al.  Ejector based organic flash combined power and refrigeration cycle (EBOFCP&RC) - A scheme for low grade waste heat recovery , 2017 .

[36]  Sadegh Sadeghi,et al.  Thermodynamic analysis and optimization of a geothermal Kalina cycle system using Artificial Bee Colony algorithm , 2016 .

[37]  C. Yoo,et al.  A novel Kalina power-cooling cycle with an ejector absorption refrigeration cycle: Thermodynamic modelling and pinch analysis , 2018 .