LOCOSTO: improving industrial energy efficiency by storage of heat

Wednesday April 1, 2015 14:59

Storing heat to use this heat at a later time is a good way to save energy. Industrial batch processes for example can benefit from heat storage by heating a new batch with the waste heat of the previous batch. Although heat storage technology is known for a very long time, industrial applications are limited due to the lack of suitable storage materials and/or high costs involved.

The LOCOSTO project aims to develop solutions for industrial heat storage applications in the temperature range of 100-250°C that are both technically and economically attractive. The project is coordinated by ECN and carried out in a consortium consisting of end-users DOW and Emmtec, engineering consultant DWA, system supplier Bronswerk Heat Transfer, materials suppliers Nedmag, Perstorp, Salca and Croda, and knowledge institute TNO.

Most industrial processes require heat storage at higher temperatures and with high thermal capacities. As yet there are no solutions to this problem, although the use of Phase Change Materials (PCM) for heat storage at higher temperatures does offer good prospects, both technical and economic, for finding suitable heat storage solutions. The LOCOSTO project focusses on the application of new PCMs with a substantial heat storage density at temperatures between 100-250°C.

Source image on the right: Martin Helm et. Al. Energy Procedia 48(2014)

New methods of integrating PCMs into heat exchangers are being applied to generate storage systems with high thermal capacities. An additional challenge will be to design these systems in such a way that the costs are low and payback time attractive.

Moreover, the development of industrial heat storage will also add more flexibility to the energy system, which enables the introduction and use of more renewable energy in this system.

The LOCOSTO project started recently and will run for 2 years. The project is partially subsidized by the industrial energy savings program of the Topsector Energy. The Netherlands Enterprise Agency (RVO.nl) is executing this program for the Institute for Sustainable Process Technology (TKI-ISPT).

For more information please contact Robert de Boer through our general contactform for Energy Effciency.

Category: Corporate, Energy efficiency