Simulation of a rotating drum heat exchanger for latent heat storage using a quasistationary analytical approach and a numerical transient finite difference scheme

A Review on Active Heat Transfer Enhancement Techniques within Latent Heat Thermal Energy Storage Systems

“…The studies focusing on scraped surface enhancement of LHTES systems are summarized in Table 3. The following are suggestions for future enhancements of scraped surface Tombrink and Bauer [53] numerically confirmed the results of the previous experimental study. The results show only an 8% deviation in the heat transfer rate from the experiments for the transient numerical simulations above 4 rpm.…”

“…By changing the rotational speed, the thermal output is able to be controlled, but the increase of heat transfer flattens out at higher rotational speeds. Tombrink and Bauer [53] numerically confirmed the results of the previous experimental study. The results show only an 8% deviation in the heat transfer rate from the experiments for the transient numerical simulations above 4 rpm.…”

Accelerated testing methods to analyse long term stability of a Phase Change Material under the combined effect of shear stress and thermal cycling

“…The experiments showed an increase of six times in the heat release rate compared to no rotation mode. Tombrink et al studied numerical [36] and experimentally [37] a rotating drum heat exchanger for LTES where the heat transfer walls were continuously scraped in order to minimize the layer thickness of the solidified PCM and maximize heat transfer. In that way, the authors were also able to easily manage the thermal power output.…”