Highly dynamic recycling of waste heat
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high- performance heat storage unit which is based on a thermochemical reaction
recycling of waste heat of 120-400 °C (and of 400-815 °C) – efficient, cost-effective and robust
- one module contains: heat exchanger, fine granules of cost-effective solid material, and industrial reaction gas
- offers high energy density
- highly dynamic heat release, reaches peak temperature in less than a minute
- delivers heat at high temperature levels of up to over 300 °C (575 °F)
- charging process with waste heat between 120-400 °C (250-750 °F)
- enables local and temporal decoupling of waste heat accumulation and heat utilization
- uniquely cost-effective combinations of materials
- robust system with high cycle stability
- easy to handle
- also suitable for long-term storage- practically no losses for many months
Level of innovation
- unique storage system based on thermo-chemical reaction
- patent protection available
- unique combination of required know-how and equipment at the TU Wien: latest material analysis and synthesis techniques as well as highly accurate determination of heat storage capacity, paired with latest know-how in engineering, process technology and production
Target groups and applications
- heat recycling for the manufacturing industry in various sectors - from basic industries to foodstuffs
- storage of solar energy for later use for electricity production or heat supply
- avoidance of cold starts through rapid preheating of equipment and operating material - e.g. oil and catalytic converter for combustion engines in construction machinery, tractors, ships
- operators of heating networks
- plant manufacturers
- mechanical engineering and motor industry
- municipal energy suppliers
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Module for highly dynamic recycling of waste heat
Typical temperature curves of the reaction of CuSO4 with NH3 - depending on size and geometry of the heat accumulator
Typical temperature curve during hydration of MgO to Mg(OH)2, depending on storage dimension
