Techno-economic Assessment of Dual and Tri-generation of Cooling and Desalination for Small and Medium Scale Decentralized Systems

Project: Research

Project Details


Due to the increased global demand of fresh water and air conditioning as a result of many factors including increased population, living standards, and raising demand in agricultural and industrial sectors, a growing problem of scarcity of available water resources is evident. Coincidently, the regions of the world where a dire situation of water scarcity is faced have the hottest climates throughout most of the year. Arabian gulf countries consume a large portion of their electricity production on air conditioning as a result of the hot climate faced. The abundance of air-conditioning units due to elevated ambient temperature and scarcity of available water resources of these countries provides a path for integrating water desalination and cooling systems. The proposed research is aimed at studying a novel hybrid system that integrates desalination and cooling in dual and tri-generation configurations. The tri-generation system aims at enhancing the desalinated water production by integrating the refrigeration cycle to two desalination units that handle different seawater salinities. The proposed research will start by conducting a comprehensive literature survey of the previous investigations of hybridizing desalination and cooling. The proposed systems utilize the concept of cascading the heat rejection process and mechanical vapor compression desalination system, where the heat rejected by the refrigeration cycle is gained by the evaporator of the desalination unit to vaporize the seawater. This research aims at modeling the proposed systems and study its performance and design features such as the productivity, brine rejection, sizing, and power consumption. Furthermore, an economic model will be developed to estimate the installation cost and cost of produced water. The developed thermo-economic models will be solved via computer code the will be developed using Engineering Equations Solver (EES).
Effective start/end date1/09/201/10/21


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