Natural ventilation with heat recovery and cooling

The aim of the project is to examine the possibility for combining heat recovery and cooling with natural ventilation. The project is based on a concept, where an air-to-fluid heat exchanger, with a low pressure loss on the air side, extracts heat from the discharge air. The extracted heat is, with a heat pump, used for room and/or water heating or heating of the intake air. Moreover, the intake air can on hot summer days be cooled and the heat used for water heating. The project is currently in the start-up phase. The concept mentioned will be modelled for optimizing the process and examining the economy. Then a test model will be built in a laboratory for evaluating the model and further optimization of the concept. The results will ideally be used for a full scale demonstration, but that step is not included in this project