Performance investigation of advanced adsorption desalination cycle with condenser–evaporator heat recovery scheme

Abstract Energy or heat recovery schemes are keys for the performance improvement of any heat-activated cycles such as the absorption and adsorption cycles. We present two innovative heat recovery schemes between the condensing and evaporating units of an adsorption desalination (AD) cycle. By recovering the latent heat of condenser and dumping it into the evaporative process of the evaporator, it elevates the evaporating temperature and hence the adsorption pressure seen by the adsorbent. From isotherms, this has an effect of increasing the vapour uptake. In the proposed configurations, one approach is simply to have a run-about water circuit between the condenser and the evaporator and a pump is used to achieve the water circulation. This run-around circuit is a practical method for retrofitting purposes. The second method is targeted towards a new AD cycle where an encapsulated condenser–evaporator unit is employed. The heat transfer between the condensing and evaporative vapour is almost immediate and...

[1]  Kyaw Thu,et al.  Study on an advanced adsorption desalination cycle with evaporator–condenser heat recovery circuit , 2011 .

[2]  A. Chakraborty,et al.  New pool boiling data for water with copper-foam metal at sub-atmospheric pressures: Experiments and correlation , 2006 .

[3]  James E. Miller,et al.  Review of Water Resources and Desalination Technologies , 2003 .

[4]  Chi Tien,et al.  Adsorption calculations and modeling , 1994 .

[5]  Kim Choon Ng,et al.  Experimental investigation of an adsorption desalination plant using low-temperature waste heat , 2005 .

[6]  Kim Choon Ng,et al.  Adsorption Desalination Quenches Global Thirst , 2008 .

[7]  M. Al-Shammiri,et al.  Maximum recovery from seawater reverse osmosis plants in Kuwait , 1997 .

[8]  K. Leong,et al.  Theoretical insight of adsorption cooling , 2011 .

[9]  K. Ng,et al.  Specific heat capacity of a single component adsorbent-adsorbate system , 2007 .

[10]  K. Ng,et al.  Experimental investigation of the silica gel–water adsorption isotherm characteristics , 2001 .

[11]  J. Wallace,et al.  Water resources and their use in food production systems , 2002, Aquatic Sciences.

[12]  Akili D. Khawaji,et al.  Advances in seawater desalination technologies , 2008 .

[13]  C. Tien.  8 – FIXED-BED ADSORPTION CALCULATIONS , 1994 .

[14]  Takao Kashiwagi,et al.  Experimental investigation of an advanced adsorption refrigeration cycle , 1997 .

[15]  M. Murakami.  Managing Water for Peace in the Middle East: Alternative Strategies , 1995 .

[16]  John MacHarg,et al.  ADC baseline tests reveal trends in membrane performance , 2008 .

[17]  N. M. Al-Najem,et al.  Energy consumption by multi-stage flash and reverse osmosis desalters , 2000 .

[18]  Hideharu Yanagi,et al.  Performance analysis of a low-temperature waste heat-driven adsorption desalination prototype , 2013 .

[19]  Mark W. Rosegrant,et al.  The world food situation: Recent developments, emerging issues, and long-term prospects , 1997 .

[20]  K. S. Speigler,et al.  A Desalination Primer , 1994 .

[21]  Kyaw Thu,et al.  Operational strategy of adsorption desalination systems , 2009 .