New combination of solar chimney for power generation and seawater desalination

AbstractIn this article, a new combination of solar chimney and Humidification–Dehumidification desalination process is introduced. In this system, the air is humidified by injection of water drops into the air flow. Then, the partial of vapors contained in the air is condensed on the outer surface of the cold water tubes. Two mathematical models have been developed for a one-dimensional flow in the solo solar chimney and the integrated system. The performance of the integrated system including power and potable water production is estimated and the results are discussed. Furthermore, it has been demonstrated that increasing in the temperature and mass flow rate of humidifier inlet water would improve the performance of the integrated system. It is found that the increase in water production would cause the decrease in power output. Also, to produce more fresh water, the number of dehumidifier tubes should be increased.

[1]  Bo Xiao,et al.  Comparison of classical solar chimney power system and combined solar chimney system for power generation and seawater desalination , 2010 .

[2]  A. Koşar,et al.  Laminar Flow Across a Bank of Low Aspect Ratio Micro Pin Fins , 2005 .

[3]  Clever Ketlogetswe,et al.  Solar chimney power generation project--The case for Botswana , 2008 .

[4]  Mohammed M. Farid,et al.  Solar desalination based on humidification process—II. Computer simulation , 1999 .

[5]  Theodor W. von Backström,et al.  Solar Chimney cycle analysis with system loss and solar collector performance. , 2000 .

[6]  Majid Amidpour,et al.  Derivation of optimal geometry of a multi-effect humidification–dehumidification desalination unit: A constructal design , 2011 .

[7]  Lu Zuo,et al.  Solar chimneys integrated with sea water desalination , 2011 .

[8]  Noreddine Ghaffour,et al.  Assessment of wind energy to power solar brackish water greenhouse desalination units: A case study from Algeria , 2009 .

[9]  H. Tabor,et al.  Solar energy research: Program in the new desert research institute in Beersheba☆ , 1958 .

[10]  Alibakhsh Kasaeian,et al.  Experimental investigation of climatic effects on the efficiency of a solar chimney pilot power plant , 2011 .

[11]  B. Dawoud,et al.  On the possible techniques to cool the condenser of seawater greenhouses , 2006 .

[12]  Sandro Nizetic,et al.  Analysis and feasibility of implementing solar chimney power plants in the Mediterranean region , 2008 .

[13]  A. Abdel-azim.  Fundamentals of Heat and Mass Transfer , 2011 .

[14]  Ramon Molina Valle,et al.  Theoretical evaluation of the influence of geometric parameters and materials on the behavior of the airflow in a solar chimney , 2009 .

[15]  Majed M. Alhazmy.  Minimum work requirement for water production in humidification—dehumidification desalination cycle , 2007 .

[16]  P. L. Dhar,et al.  Heat and mass transfer processes between a water spray and ambient air -II. Simulations , 2008 .

[17]  Majid Amidpour,et al.  Performance optimization of the humidification–dehumidification desalination process using mathematical programming , 2009 .

[18]  Yunhan Xiao,et al.  Experimental and theoretical studies on air humidification by a water spray at elevated pressure , 2007 .

[19]  B. A. Kashiwa,et al.  The solar cyclone: A solar chimney for harvesting atmospheric water , 2008 .

[20]  Habib Ben Bacha,et al.  Perspectives of solar-powered desalination with the “SMCEC” technique , 1999 .

[21]  Mohammed M. Farid,et al.  A simulation study to improve the performance of a solar humidification-dehumidification desalination unit constructed in Jordan , 1997 .

[22]  Bo Xiao,et al.  Simulation of a pilot solar chimney thermal power generating equipment , 2007 .

[23]  Hisham Ettouney,et al.  Humidification dehumidification desalination process: Design and performance evaluation , 2008 .

[24]  J. Schlaich,et al.  Solar Chimneys Part I: Principle and Construction of the Pilot Plant in Manzanares , 1983 .

[25]  Majid Amidpour,et al.  Modeling and numerical simulation of solar chimney power plants , 2011 .

[26]  W. Haaf,et al.  Solar Chimneys: Part II: Preliminary Test Results from the Manzanares Pilot Plant , 1984 .

[27]  Liu Wei,et al.  Numerical simulation of the solar chimney power plant systems coupled with turbine , 2008 .

[28]  M. Engelhardt,et al.  Small-scale thermal seawater desalination simulation and optimization of system design , 1999 .

[29]  Soteris A. Kalogirou,et al.  Seawater desalination using renewable energy sources , 2005 .

[30]  Ephraim M Sparrow,et al.  Longitudinally-finned cross-flow tube banks and their heat transfer and pressure drop characteristics , 1985 .

[31]  Mohammed M. Farid,et al.  Solar desalination based on humidification process—I. Evaluating the heat and mass transfer coefficients , 1999 .

[32]  A. A. Hassan.  Effect of tube arrangement and condensate flow rate on the pressure loss for cross flow of steam in small tube bundle , 2010 .

[33]  Tord Karlsson,et al.  Reasons for drop in shell-and-tube condenser performance when replacing R22 with zeotropic mixtures. Part 1. Analysis of experimental findings , 2004 .

[34]  Lu Zuo,et al.  Experimental research on solar chimneys integrated with seawater desalination under practical weather condition , 2012 .

[35]  P. L. Dhar,et al.  Experimental studies and numerical simulation of evaporative cooling of air with a water spray—I. Horizontal parallel flow , 1998 .

[36]  Aliakbar Akbarzadeh,et al.  Examining potential benefits of combining a chimney with a salinity gradient solar pond for production of power in salt affected areas , 2009 .

[37]  M. A. dos S. Bernardes,et al.  Thermal and technical analyses of solar chimneys , 2003 .