Micro-Coolers

Yeom, Junghoon; Shannon, Mark A.; Singh, Tarlochan

doi:10.1016/b978-0-12-803581-8.00568-3

Cited by 5 publications

(9 citation statements)

References 274 publications

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“…In this manner, the cost of the idling voltage control system would be less than that of the on/off control system over time due to the savings from decreased electric power consumption. [37][38][39]…”

Section: Improvement Of the Insulated Compartment's Internal Temperat...mentioning

confidence: 99%

“…The thermal resistance of the thermal grease must be considered in addition to the heat resistance of the heat sink to make a proper thermal connection between the TEC and the heat sink. Reference [39] provides a description of the heat sink design and uses specifics (such as fin thickness and position) to establish the appropriate heat sink shape. The hot side of the TEC may occasionally be replaced by thermal storage using PCMs or an HP heat exchanger to reduce the TEC temperature T c (cold side temperature degree).…”

Section: Thermoelectric Coolermentioning

confidence: 99%

“…This system achieves a COP growth of 64% and 32% reduction 38 compared with the standard on/off temperature control method. In this manner, the cost of the idling voltage control system would be less than that of the on/off control system over time due to the savings from decreased electric power consumption 37‐39 …”

Section: Thermoelectric Coolermentioning

confidence: 99%

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Thermoelectric cooler performance enhancement using thermoelectric generators and their use as a single model to improve the performance of thermal battery management systems for electric vehicles

et al. 2022

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Conventional automobiles that operate on fossil fuels have recently been recognized as one of the significant contributors to environmental pollution, particularly given their increasing numbers in relation to the global population. Electric vehicle (EV) is considered as an excellent solution to this problem. The most difficult challenge is increasing the production of EVs using efficient and affordable batteries. All types of batteries used in EV have a power loss occurs in the form of temperature. The development of a battery thermal management system (BTMS) is a formidable obstacle. The new concept aims to improve the thermoelectric cooler (TEC) efficiency by integrating it with a thermoelectric generator (TEG), which is accomplished by fabricating a TEC‐TEG model. The goal of combining a TEG and a TEC is to utilize waste heat generated on the TEC hot side and convert it into a stream that can be used to feed the TEC and increase its efficiency. Finally, the objectives of this paper are: To investigate the working principle of TEC‐TEG model to regulate EV battery's temperature. To design a hybrid air‐forced TEC‐TEG model for EV batteries. To assess and verify the efficiency of a hybrid TEC‐TEG model in regulating an EV battery temperature.

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Section: Improvement Of the Insulated Compartment's Internal Temperat...mentioning

confidence: 99%

Section: Thermoelectric Coolermentioning

confidence: 99%

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Thermoelectric cooler performance enhancement using thermoelectric generators and their use as a single model to improve the performance of thermal battery management systems for electric vehicles

et al. 2022

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“…Furthermore, they are also suitable for the civil market (e.g., portable refrigeration, car-seat cooler, high-quality beverage conservators). For these applications, the thermoelectric elements have the advantages that do not suffer vibrations and shocks [21,[40][41][42].…”

Section: Development Of Thermoelectric Materials With High Performancementioning

confidence: 99%

Thermoelectric Refrigeration Principles

Enescu¹

2018

Bringing Thermoelectricity Into Reality

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This chapter recalls the general principles and main formulations useful in the study of thermoelectric coolers. Starting from the general heat diffusion equation, analytical expressions are introduced for the determination of cooling capacity and rate of heat rejection in steady-state conditions. When dealing with the whole refrigeration system, the limits of the steady-state analysis of the individual thermoelectric elements are pointed out, indicating the need for transient analysis supported by experimental evaluations. Then, the energy indicators are illustrated by considering the electrical power consumption, the thermal performance described by the dimensionless figure of merit, as well as the coefficient of performance. Furthermore, the main methods to enhance the thermoelectric cooler performance in refrigeration units are highlighted, with reference to highperformance materials, design aspects and temperature control systems. Finally, indications are reported on some applications of various thermoelectric refrigeration solutions, considering the technical aspects of the performance of these systems.

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“…Remarkably, this prediction held true for over five decades. However, recent advances in the field have encountered two major challenges: managing thermal issues and confronting physical limitations in devices that are only a few nanometres in size [2,3]. Conventional air-cooling heat sinks with extended surfaces and fans, water cooling and heat pipes will become inadequate of dissipating ever increasing generated heat.…”

Section: Introductionmentioning

confidence: 99%

State of the art of micro vapour-compression systems

Blatnik,

Klinar,

Kitanovski

2024

J. Phys.: Conf. Ser.

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Thermal management is becoming more challenging due to the increasing compactness and computational power of appliances. Affordable and efficient solutions include active liquid cooling methods, thermoelectric cooling, and the use of heat pipes. From these, vapour-compression technologies achieve the highest power density. However, the downscaling of vapour-compression for cooling of personal computers or workstations is rather problematic from several different reasons. The first problem concerns the low second law efficiency of miniature vapour-compression systems. The second problem concerns the available space occupation of such a cooling system. Moreover, miniature and high-power density condensers and evaporators have not yet been adequately researched and developed to date. In this review, we present several vapour-compression refrigeration systems that are based in some way on the miniaturisation of systems or individual components – evaporators, condensers, and compressors. These are presented and compared in terms of cooling power, COP, and the second law efficiency. At the end of the manuscript, guidelines for future improvements and the implementation of miniature vapour-compression systems are presented.

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Micro-Coolers

Cited by 5 publications

References 274 publications

Thermoelectric cooler performance enhancement using thermoelectric generators and their use as a single model to improve the performance of thermal battery management systems for electric vehicles

Thermoelectric cooler performance enhancement using thermoelectric generators and their use as a single model to improve the performance of thermal battery management systems for electric vehicles

Thermoelectric Refrigeration Principles

State of the art of micro vapour-compression systems

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