<div class="htmlview paragraph">For many different reasons there is a great potential for a system capable of storing and using waste motor heat of cars to provide heating or cooling. If such a system has a high storage density application in electrical and hybrid vehicles may be interesting.</div> <div class="htmlview paragraph">The SWEAT system, in which SWEAT stands for Salt Water Energy Accumulation and Transformation, has led to a new heat storage and cooling system for automotive applications. The system can best be discribed as a thermochemical heat storage system which stores low temperature heat for instance waste heat from car motors. At a later stage heat or cold can be produced by using the thermochemical heat pump function.</div> <div class="htmlview paragraph">The basic problems with comparable systems in the past were:</div> <div class="htmlview paragraph"> <ul class="list disc"> <li class="list-item"><div class="htmlview paragraph">Poor stability and side reactions of the materials used.</div></li> <li class="list-item"><div class="htmlview paragraph">Low power output per kg</div></li> <li class="list-item"><div class="htmlview paragraph">Low storage capacity</div></li> <li class="list-item"><div class="htmlview paragraph">Low efficiency</div></li> </ul> </div> <div class="htmlview paragraph">Research conducted by a team of De Beijer RTB B.V. in cooperation with the Delft University of technology in the Netherlands and some industrial companies improved the system considerably.</div> <div class="htmlview paragraph">The possibility of using waste motor heat of motor vehicles for cooling and heating of the passengers' compartment is being investigated in cooperation with a German automotive supplying company. A research project and a prototype for testing purposes have already been completed of which the results are promising.</div>