Energy and exergy analyses of a combined desalination and CCHP system driven by geothermal energy

Abstract Renewable energy sources are gain more attention due to their advantages over the fossil fuels. In this paper, a modified Kalina cycle is coupled to a reverse osmosis system to provide heating, cooling and power and potable water. Hot geothermal water is used as heat source of the system. Energy and exergy analyses are used to analyze the system and evaluate its performance. Effect of key thermodynamic parameters on the system performance is studied using sensitivity analysis. The results show that the system can provide 46.77 kW power, 451 kW heating, 52 kW cooling and 0.79 kg/s potable water. Also, the sensitivity analysis shows that there is an optimum value for the flash pressure and inlet pressure to the first separator which should be selected wisely. It is concluded that the parameters related to the steam cycle are dominant ones because they can affect both the steam cycle and the Kalina cycle.

[1]  D. Y. Goswami,et al.  Effectiveness of cooling production with a combined power and cooling thermodynamic cycle , 2006 .

[2]  Elysia J. Sheu,et al.  Hybrid solar-geothermal power generation: Optimal retrofitting , 2014 .

[3]  Xu Cao,et al.  Theoretical analysis of a reverse osmosis desalination system driven by solar-powered organic Rankine cycle and wind energy , 2014 .

[4]  Xiao Xiao Xu,et al.  Energy and exergy analyses of a modified combined cooling, heating, and power system using supercritical CO2 , 2015 .

[5]  Fathollah Pourfayaz,et al.  Exergoeconomic analysis and multi objective optimization of performance of a Carbon dioxide power cycle driven by geothermal energy with liquefied natural gas as its heat sink , 2016 .

[6]  M. Mehrpooya,et al.  Energy and exergy analysis and optimal design of the hybrid molten carbonate fuel cell power plant and carbon dioxide capturing process , 2015 .

[7]  Yiping Dai,et al.  Parametric analysis and optimization for a combined power and refrigeration cycle , 2008 .

[8]  I. Dincer,et al.  Energy and exergy analyses of a new geothermal–solar energy based system , 2016 .

[9]  M. McLinden,et al.  NIST Standard Reference Database 23 - NIST Thermodynamic and Transport Properties REFPROP, Version 7.0 , 2002 .

[10]  T. J. Kotas,et al.  The Exergy Method of Thermal Plant Analysis , 2012 .

[11]  Jiangfeng Wang,et al.  Thermodynamic analysis of a new combined cooling and power system using ammonia–water mixture , 2016 .

[12]  A. Hasan,et al.  Exergy analysis of a combined power and refrigeration thermodynamic cycle driven by a solar heat source , 2003 .

[13]  Mehdi Mehrpooya,et al.  Optimization of performance of Combined Solar Collector-Geothermal Heat Pump Systems to supply thermal load needed for heating greenhouses , 2015 .

[14]  Vajiheh Sabeti,et al.  Optimization of a novel combined cooling, heating and power cycle driven by geothermal and solar energies using the water/CuO (copper oxide) nanofluid , 2015 .

[15]  Pedro J. Mago,et al.  Combined cooling, heating and power: A review of performance improvement and optimization , 2014 .

[16]  Gunnar Tamm,et al.  Theoretical and experimental investigation of an ammonia–water power and refrigeration thermodynamic cycle , 2004 .

[17]  V. Zare,et al.  A comparative thermodynamic analysis of two tri-generation systems utilizing low-grade geothermal energy , 2016 .

[18]  Mortaza Yari,et al.  Exergetic analysis of various types of geothermal power plants , 2010 .

[19]  Hilmi Yazici,et al.  Energy and exergy based evaluation of the renovated Afyon geothermal district heating system , 2016 .

[20]  Mehdi Mehrpooya,et al.  Techno-economic assessment of a Kalina cycle driven by a parabolic Trough solar collector , 2015 .

[21]  D. Yogi Goswami,et al.  Analysis of power and cooling cogeneration using ammonia-water mixture , 2010 .

[22]  Mehdi Mehrpooya,et al.  A novel process configuration for co-production of NGL and LNG with low energy requirement , 2013 .

[23]  Jialing Zhu,et al.  A review of geothermal energy resources, development, and applications in China: Current status and prospects , 2015 .

[24]  Mortaza Yari,et al.  Exergoeconomic analysis and optimization of basic, dual-pressure and dual-fluid ORCs and Kalina geothermal power plants: A comparative study , 2015 .

[25]  H. Ettouney,et al.  Fundamentals of Salt Water Desalination , 2002 .

[26]  Mehmet Kanoglu,et al.  Geothermal energy use in absorption precooling for Claude hydrogen liquefaction cycle , 2016 .

[27]  Mehdi Mehrpooya,et al.  Prediction of standard chemical exergy by a three descriptors QSPR model , 2007 .

[28]  Marc A. Rosen,et al.  Exergoeconomic comparison of TLC (trilateral Rankine cycle), ORC (organic Rankine cycle) and Kalina cycle using a low grade heat source , 2015 .

[29]  Danxing Zheng,et al.  Effect of cycle coupling-configuration on energy cascade utilization for a new power and cooling cogeneration cycle , 2014 .

[30]  D. Y. Goswami,et al.  On Evaluating Efficiency of a Combined Power and Cooling Cycle , 2003 .

[31]  D. Y. Goswami,et al.  Optimum operating conditions for a combined power and cooling thermodynamic cycle , 2007 .

[32]  D. Yogi Goswami,et al.  On Evaluating Efficiency of a Combined Power and Cooling Cycle , 2003 .

[33]  Fredrik Haglind,et al.  Thermoeconomic optimization of a Kalina cycle for a central receiver concentrating solar power plant , 2016 .

[34]  D. Yogi Goswami,et al.  Solar Thermal Power Technology: Present Status and Ideas for the Future , 1998, Successfully Managing the Risk and Development of Your Business and Technology.

[35]  Alexander Mitsos,et al.  Thermo-economic analysis of a hybrid solar-binary geothermal power plant , 2015 .

[36]  J. Lienhard,et al.  Erratum to Thermophysical properties of seawater: A review of existing correlations and data , 2010 .