Transient supercooling behaviors of a novel two-stage Peltier cooler

Gao, Yan; Meng, Jing; Liu, Hai Bo; Chen, Wei‐Hsin; Wang, Xiao‐Dong

doi:10.1016/j.applthermaleng.2018.07.100

Cited by 15 publications

(4 citation statements)

References 38 publications

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“…However there are novel thermoelectric applications such as the thermoelectric water dispenser unit which is able to supply cold and hot drinking water simultaneously [30] or the efficient thermoelectric distillation system developed for production of drinkable water [31]. On the other hand, significant improvements on thermoelectric cooling have been achieved studying variable leg cross-sectional areas introduced into twostage thermoelectric coolers [32] or combining two-stage design with transient supercooling effect [33]. A great solution studied was the development of a hybrid refrigerator, combining both the thermoelectric and the vapour compression system [34][35][36] where better efficiency values were obtained thanks to the cascade configuration of the thermoelectric modules (TEM) and the vapour compression part.…”

Section: Introductionmentioning

confidence: 99%

Improvements in the cooling capacity and the COP of a transcritical CO2 refrigeration plant operating with a thermoelectric subcooling system

Astrain

Merino

Aranguren

et al. 2019

Applied Thermal Engineering

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Restrictive environmental regulations are driving the use of CO2 as working fluid in commercial vapour compression plants due to its ultra-low global warming potential (GWP100 = 1) and its natural condition. However, at high ambient temperatures transcritical operating conditions are commonly achieved causing low energy efficiencies in refrigeration facilities. To solve this issue, several improvements have been implemented, especially in large centralized plants where ejectors, parallel compressors or subcooler systems, among others, are frequently used. Despite their good results, these measures are not suitable for small-capacity systems due mainly to the cost and the complexity of the system. Accordingly, this work presents a new subcooling system equipped with thermoelectric modules (TESC), which thanks to its simplicity, low cost and easy control, results very suitable for medium and small capacity plants. The developed methodology finds the gas-cooler pressure and the electric voltage supplied to the TESC system that maximizes the overall COP of the plant taking into account the ambient temperature, the number of thermoelectric modules used and the thermal resistance of the heat exchangers included in the TESC. The obtained results reveal that, with 20 thermoelectric modules, an improvement of 20% in terms of COP and of 25.6% regarding the cooling capacity can be obtained compared to the base cycle of CO2 of a small cooling plant refrigerated by air. Compared to a cycle that uses an internal heat exchanger IHX, the improvements reach 12.2% and 19.5% respectively.

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Section: Introductionmentioning

confidence: 99%

Improvements in the cooling capacity and the COP of a transcritical CO2 refrigeration plant operating with a thermoelectric subcooling system

Astrain

Merino

Aranguren

et al. 2019

Applied Thermal Engineering

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“…3-/4redox pair and solid Prussian blue particles as active materials for the two electrodes [43] , (b) a graphene oxide/platinum nanoparticles cathode and a polyaniline anode in Fe 2+ /Fe 3+ redox electrolyte [44] 3 应用在超级电容器服役过程中，不可避免会出现发热状况，这在许多情况下是有害的，而利用其反过程来进行热电转换具有很大的发展前景 [46][47][48] 。经过几十年的研究和发展，基于热电转换的超级电容器的制作工艺逐渐成熟，应用领域逐渐扩大，涉足各大行业，比如可穿戴电子产品、电子元器件冷却、动力电池等等。…”

Section: 无温差下无外加电源的热电转换unclassified

Progress on the performances and applications of supercapacitors for thermoelectric conversion

Lian¹,

Dong²,

Gao³

et al. 2022

Chin. Sci. Bull.

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“…The purpose was to maintain the CPU temperature in the rational range. Gao et al [9] investigate nine different crosssectional combinations of hot and cold ends. The transient performance of the nine design solutions was compared for different pulse amplitudes and widths.…”

Section: Introductionmentioning

confidence: 99%

Analysis on transient characteristics of air-cooled thermoelectric cooler in confined space with internal heat source

Meng

Sun

2023

IOP Conf. Ser.: Earth Environ. Sci.

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A transient model of the thermoelectric refrigerator working in a cooling space with an internal heat source is established. The influence of key parameters on the transient performance of the thermoelectric refrigerator under different working conditions is analyzed. The changes of the minimum cooling temperature and the cooling coefficient is analyzed, which were compared with different internal heat source power, input current and filling factor. The results show that the power of internal heat source has a significant impact on the cooling temperature and the time required for temperature stabilization. There are optimal working current and optimal filling coefficient which can make the cooling rate reach the maximum and the cooling space temperature reach the minimum respectively. The optimal filling factor increases with the power of the internal heat source.

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Transient supercooling behaviors of a novel two-stage Peltier cooler

Cited by 15 publications

References 38 publications

Improvements in the cooling capacity and the COP of a transcritical CO2 refrigeration plant operating with a thermoelectric subcooling system

Improvements in the cooling capacity and the COP of a transcritical CO2 refrigeration plant operating with a thermoelectric subcooling system

Progress on the performances and applications of supercapacitors for thermoelectric conversion

Analysis on transient characteristics of air-cooled thermoelectric cooler in confined space with internal heat source

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