A high-temperature heat pump for compressed heat energy storage applications: Design, modeling, and performance

Is waste heat recovery a promising avenue for the Carnot battery? Techno-economic optimisation of an electric booster-assisted Carnot battery integrated into different data centres

“…It should be mentioned again that, in practice, this type of compression would be carried out in several machines, but for a techno-economic study, it can be modelled as a single transformation. Therefore, an isentropic efficiency of 0.65 has been selected to model the compressor [37]. Please note that the sensitivity of the results to this value is tested in the uncertainty analysis (Section 4.2)…”

A Review of Super-High-Temperature Heat Pumps over 100 °C

“…Based on the design of highly matching heat storage in the thermal storage bucket and room heat load, the influence of the law of solar irradiance on the compressor power and heat production of heat pump was explored, and it was concluded that there was a highly linear matching relationship between solar irradiance and heat production. Hassan [85] introduced the design and performance of a high-temperature heat pump (HTHP) integrated in a sensible and latent heat storage system, discussed the size and selection of major components, and developed parameter studies and performance maps under different operating conditions. The results showed that heat production was achieved in the form of latent heat (7.4 to 21.59 kW) and sensible heat (from 6.35 to 17.94 kW) with a heating COP of around 4 when the HTHP consumed was from 3.23 to 9.88 kW.…”