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Energetic and economic cost of nuclear heat impact on the cost of desalination

In the context of this work, simplified models have been developed to describe the thermodynamics of power conversion, the energetics of multi-effect evaporation (MED), and the costs of electricity and heat cogenerated by the dual-purpose power plant. | Energetic and economic cost of nuclear heat impact on the cost of desalination EPJ Nuclear Sci. Technol. 3 1 2017 Nuclear Sciences S. Dardour and H. Safa published by EDP Sciences 2017 amp Technologies DOI 10.1051 epjn 2016037 Available online at http www.epj-n.org REGULAR ARTICLE Energetic and economic cost of nuclear heat impact on the cost of desalination Saied Dardour1 2 and Henri Safa1 3 1 Commissariat à l Énergie Atomique et aux Énergies Alternatives 13108 Saint-Paul-lez-Durance Cedex France 2 DEN DER SESI CEA Cadarache Bât.1222 13108 Saint-Paul-lez-Durance Cedex France 3 International Institute of Nuclear Energy 91191 Gif-sur-Yvette Cedex France Received 5 April 2016 Received in final form 8 November 2016 Accepted 8 November 2016 Abstract. An exploratory study has been carried out to evaluate the cost of heat supplied by a pressurized water reactor type of nuclear reactors to thermal desalination processes. In the context of this work simplified models have been developed to describe the thermodynamics of power conversion the energetics of multi-effect evaporation MED and the costs of electricity and heat cogenerated by the dual-purpose power plant. Application of these models show that contrary to widespread belief nuclear-powered MED and seawater reverse osmosis are comparable in terms of energy effectiveness. Process heat can be produced in fact by a relatively small increase in the core power. As fuel represents just a fraction of the cost of nuclear electricity the increase in fuel-related expenses is expected to have limited impact on power generation economics. 1 Introduction higher than MED s because of pressure drops in flashing chambers and the possible presence of brine With almost 75 million cubic meter per day of worldwide recirculation loops 6 . MSF s pumping power varies installed capacity 1 desalination is the main technology between 2.5 and 5 kWhe m 3 7 . MED manufacturers used to meet water scarcity. About two third of this claim specific .