Abstract
Improved performance of modified binder-free zeolite Y in mobile sorption heat storage for low-temperature industrial waste heat recovery.
Highlights
Thermal energy storage (TES) plays a key role in the more rational use of energy because it allows the decoupling of the production and demand for thermal energy
We have studied the effect of HCl and H4EDTA treatments, as well as the impact of sequential ion-exchange acid treatment on the material storage performance, i.e. on the desorption temperature and energy storage density
We demonstrated that the commercial granulated binder-free NaY zeolite can be used as the adsorbent in a mobile sorption storage system to recover industrial waste heat at a temperature level below 140 C
Summary
Thermal energy storage (TES) plays a key role in the more rational use of energy because it allows the decoupling of the production and demand for thermal energy. Recent research activities have been focused on the development of heat storage systems that would enable the efficient utilization of lowtemperature solar or waste heat for heating, cooling or drying applications. There are three main types of thermal energy storage systems: latent, sensible and thermochemical heat storage technologies.[1,2] Latent heat storage uses the phase change enthalpy of phase-change materials for storage. Sensible heat storage is based on increasing or decreasing the temperature of a high heat capacity storage medium, storing and releasing heat. Thermochemical heat storage utilizes the reversible chemical reaction and/or sorption processes of gases in solids or liquids.[2] This process usually consists of two phases. Under the in uence of a heat supply, water is desorbed from the material and is stored separately (closed system) or is dissipated into the environment (open system).
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