Thermal Energy Storage (TES), is a technology which allows to bridge the gap between any given energy source and a time-shifted heat demand. Heat is stored in a controlled manner so that it can be provided later for industrial processes.
In times of rising energy prices, volatile electricity markets and increasing sustainability requirements, this technology is becoming increasingly important. Industrial companies typically generate or procure heat in sync with their demand.
As an alternative, heat, for example from
can be stored and released when needed. AURA develops customized solutions for integrating thermal energy storage systems into existing process heat systems. Due to the wide variety of TES technologies, there is a suitable solution for almost every customer process.
In Thermal Energy Storage (TES), heat is absorbed by a storage medium and released again at a later point in time.
There are many types of TES, which can be classified according to the storage material (e.g. steel, concrete, water), the physical behavior of the storage medium (sensible, latent), or other criteria.
In addition to the storage system itself, the heat transfer between the heat source, the storage medium, and the consumer must also be considered.
This is handled by the balance of plant (BoP), which includes the necessary heat exchangers, pumps, control units and other components.
A typical application of TES can be found in hydraulic press operations, which usually have a cyclical load profile with heating and cooling phases. For these applications, we have implemented systems with a direct hot oil buffer storage, which is charged during the cooling phase and discharged during heating.
For CST systems, we were involved in projects with different approaches, such as a solid-state TES for a thermal oil system up to 400 °C or a liquid-state TES for a pressurized water system with a design temperature of 240 °C.
Other typical applications:
