A thermodynamic model of integrated liquid-to-liquid thermoelectric heat pump systems

Wan, Hanlong; Gluesenkamp, Kyle R.; Shen, Bo; Li, Zhenning; Patel, Viral K.; Kumar, Navin

doi:10.1016/j.ijrefrig.2023.01.024

Cited by 3 publications

(1 citation statement)

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“…is the temperature difference between the hot side and the cold side; and R, I, and K are the electrical resistance, operating current, and thermal conductance of the thermoelectric module, respectively. It should be noted that S, R, and K are temperature-dependent parameters, while previous studies demonstrate that at the TeHP system level, using constant thermoelectric material properties will only lower the precision of the numerical results slightly [28,29]; hence, the three thermoelectric module material properties are treated as constants for simplicity [14].…”

Section: Thermoelectric Heat Pumpmentioning

confidence: 99%

Modelling and Experimental Characterisation of a Water-to-Air Thermoelectric Heat Pump with Thermal Energy Storage

Zhou,

Zhu,

Wang

et al. 2024

Energies

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Nowadays, increasing the penetration of renewable heat technologies is an important approach to minimise global primary energy use and reduce CO2 emissions for a sustainable future. Thermoelectric heat pumps, which have some unique characteristics in comparison with conventional vapour compression heat pumps, can be integrated with solar thermal energy storage to form a promising renewable heat technology. However, currently, a reliable numerical model for TeHPs suitable for building energy simulation is lacking and the benefits achievable for a TeHP thanks to the integration with heat storage are unclear. To solve these issues, in this work, an experimental apparatus consisting of a water-to-air TeHP unit with a heat storage tank is modelled and tested for the first time, under the scenarios with thermal energy storage and without thermal energy storage, respectively. The results found that the developed numerical model could well predict the output performance of the TeHP unit, with deviations within 12%. Additionally, the output performance of the TeHP unit when combined with a heat storage tank is better than that of the TeHP unit without heat storage, in terms of the maximum temperature achieved in the testing box, the temperature response speed of the testing box, and the coefficient of performance (COP) of the TeHP unit. This work not only paves the way for the following building-integrated simulations of TeHP units, but also provides guidance for the design of the integrated systems that include TeHPs and thermal energy storage.

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Section: Thermoelectric Heat Pumpmentioning

confidence: 99%