Cyclic mechanical stability of thermal energy storage media

Transient Two-Dimensional (r-z) Cyclic Charging/Discharging Analysis of Space Thermal Energy Storage Systems (RESEARCH NOTE)

A two-dimensional transient axi-symmetric model was developed to study the effects of various thermal and geometric parameters on cyclic heating and cooling modes of a phase-change thermal energy storage system. The high-temperature thermal energy storage device utilizes LiH for heat sink applications to store the waste heat generated during power-burst periods. The stored heat is then discharg...

Testing of High Thermal Cycling Stability of Low Strength Concrete as a Thermal Energy Storage Material

Concrete has the potential to become a solution for thermal energy storage (TES) integrated in concentrating solar power (CSP) systems due to its good thermal and mechanical properties and low cost of material. In this study, a low strength concrete (C20) is tested at high temperatures up to 600 ◦C. Specimens are thermally cycled at temperatures in the range of 400–300 ◦C, 500–300 ◦C, and 600–3...

Short term thermal energy storage

2014 The present paper reviews the problem of short term thermal energy storage for low temperature solar heating applications. The techniques of sensible and latent heat storage are discussed, with particular emphasis on the latter. Requirements for hot water storage subsystems are provided and the importance of stratification in hot water storage tanks is described. Concerning latent heat sto...

Energy efficiency in a building complex through seasonal storage of thermal energy in a confined aquifer

Confined aquifers are formations surrounded by impermeable layers called cap rocks and bed rocks. These aquifers are suitable for the seasonal storage of thermal energy. A confined aquifer was designed to meet the cooling and heating energy needs of a residential building complex located in Tehran, Iran. The annual cooling and heating energy needs of the buildings were estimated to be 8.7...

Cyclic Operation of Molten-Salt Thermal Energy Storage in Thermoclines for Solar Power Plants