Modernising the cold transport industry

The refrigerated transportation sector is seeking energy-saving solutions to remain competitive. As soaring fuel prices drive operating costs, companies are taking their refrigerated vehicles off the roads and either renovating or replacing them. About 8 % of a van or truck's total fuel consumption is used up by its refrigeration system.

Overall, the 'Metal hydride heat pump for waste heat recovery in vans refrigeration systems' (HP-ACS) project aims to introduce an innovative heat pump that will lead to considerable fuel and energy savings over conventional systems, boost vehicle efficiency and reduce greenhouse gas emissions.

The majority of refrigeration systems use a compressor that consumes a lot of energy. Project partners estimated that compressors drive vehicle consumption by about 15 % when in operation.

Researchers are developing a heat pump that will work by taking advantage of the available waste heat produced by the engine. In this way, cold is generated by the engine waste heat without expending energy, thus completely avoiding refrigeration operating costs. This technology has the potential to save companies up to 8 000 litres of fuel per year for each van or truck.

The team is designing, piloting and characterising materials that are applicable to the heat pump's hydrogen adsorption beds. It is also looking into optimising the heat pump design for easy assembly and with lightweight features.

HP-ACS is leading the revolution towards a cutting edge, heat-driven air conditioning system. Tomorrow's vehicles will be energy and cost efficient, enabling the refrigerated transportation market to remain competitive.