Description

The idea on which this project is based is to install thermochemical storages in ovens for heat recuperation and control. For the temperature range of this application, thermochemical material for the low-temperature range is used. Due to the high storage density of thermochemical storage materials, very compact systems can be built that can be easily integrated into ovens.

Thermal storage concepts for an oven are currently mostly based either on the conversion into latent heat or on the conversion into electrical energy. Latent heat conversion is designed for short-term use during the cooking process. In particular, the energy present in the (possibly water-laden) exhaust air should be transferred to the supply air. The conversion into electrical energy by means of a thermal generator requires a battery or something similar to store the energy.

To heat the food in the oven, not only the air in the oven but also the oven is heated. This requires a corresponding amount of energy, which is given off as heat to the environment, especially after the cooking process has ended.

The aim of this research project is to develop a functional model for thermochemical heat recuperation in an oven using different thermochemical substances and to carry out extensive investigations into the limitations of the system, the optimal process control, the applicability for the end customer, the practical potential, and the challenges in the real system to perform.

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