Integrated solar heating and cooling unit based on a novel zeolite chiller and heat pump
The overall objective of this project is to develop a new advanced solar cooling and heating product, using advanced heat
exchanger technology and integrating a heat pump for covering peak demand. This new product is based on the further
improvement and integration of the products already commercialized by Fahren and Akotec. It uses synergies between the
technologies of thermal chillers (heat to cooling technology) and heat pump (electricity to cooling technology) and combines
know-how on design and manufacturing of adsorption chillers and solar thermal collectors in Germany, with the know-how in
heat pump and dry cooling systems of CNR and NTUA.
The main innovation of the project is the adsorption chiller unit based on Fahren’s patented zeolite coating technology,
reducing the unit’s volume and cost by about two times. This new product is expected to become cost-effective and with high
flexibility for providing both cooling (during summer) and heating (during winter) from the same compact product, being more
competitive than existing mainstream solution, reducing energy costs of the end-users and leading to short ROI. The main
target market is the heating, ventilation and air-conditioning (HVAC) market, with the ambition to become front-runners and
provide the first cost-effective product, with low maintenance requirements. The target cost is to reach just 2000 €/kW (with
solar field and cooling, heating and thermal storage included) and secure a short return on investment.
The new product will be commercialized by a new joint venture established between Fahren and Akotec with Diadikasia
being a strategic partner for promotion and sales in south Europe. The initial target markets are in Greece, Italy and
Germany, while further expansion steps will follow once sales increase.