A compact refrigeration system based on multijet sprays for electronics thermal management

Carneiro, Marcus Vinícius P.; Oliveira, Pablo A. de; Barbosa, Jader R.

doi:10.1016/j.expthermflusci.2018.03.005

Cited by 12 publications

(4 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, in order to extend the life of the power battery and improve its electrochemical performance, a reasonable battery heat management system must be designed to keep the battery at an optimal range of operating temperature and maximize temperature uniformity. At present, a large number of research studies have been conducted on various thermal management systems, mainly air cooling, , liquid cooling, , and phase change material (PCM) cooling . Among the above thermal management methods, PCM cooling is a passive thermal management method, which is different from traditional air cooling and liquid cooling.…”

Section: Introductionmentioning

confidence: 99%

Effect Analysis on Thermal Management of Power Batteries Utilizing a Form-Stable Silicone Grease/Composite Phase Change Material

Liu

et al. 2021

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

Battery thermal management technology based on a phase change material (PCM) demonstrates outstanding performance. However, the low thermal conductivity and leakage of the PCM limit the application for battery thermal management. This paper proposes a polyethylene glycol/boron nitride/expanded graphite composite phase change material (CPCM). In view of the large contact resistance caused by the uneven surface of the CPCM, silicone grease was applied to the CPCM to prepare a silicone grease/composite phase change material (SCPCM). The SCPCM exhibits high shape stability and low contact thermal resistance in comparison with the CPCM. Furthermore, an active PCM thermal management system was designed to optimize the thermal management performance of the battery module. The experiment results indicated that the SCPCM thermal management showed a good thermal management performance at low discharge rates (1C and 2C), and the maximum temperature and temperature difference in the module were kept within 50 and 5 °C, respectively. However, at a discharge rate of 3C, the heat storage capacity of the SCPCM reaches saturation, and the heat dissipation capacity decreases. In addition, the water cooling coupled with PCM cooling (W-PCM) battery module always showed the best thermal performance. The W-PCM thermal management method can still effectively improve the thermal saturation problem of the PCM thermal management system after 10 charge and discharge cycles at 4C discharge rates.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect Analysis on Thermal Management of Power Batteries Utilizing a Form-Stable Silicone Grease/Composite Phase Change Material

Liu

et al. 2021

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

show abstract

“…The heat generated by the PCBs must be removed from each of these levels via an appropriate cooling strategy. There are several cooling strategies (liquid cooling [1,2], two-phase cooling [3] and spray cooling [4,5], among others), but the most commonly employed technique is air cooling using an axial fan to produce air movement for reasons of safety and availability. Problems arise as the axial fan is usually placed together with an electromagnetic compatibility (EMC) screen, which mainly plays the role of reducing electromagnetic interferences in the device but it also keeps dust from entering.…”

Section: Introductionmentioning

confidence: 99%

Compact Model of a Screen under Fan-Induced Swirl Conditions Using a Porous Media Approach

et al. 2021

View full text Add to dashboard Cite

A perforated plate in an electronic device is typically placed downstream of an axial fan (push cooling) in order to avoid electromagnetic interferences. Because of the swirling component in the flow approaching the screen, determining how the screen affects the flow pattern downstream of the screen is a challenge. It is important to understand this interaction, as the correct location of the electronic components will depend on the flow pattern (the components that dissipate more heat will be located where the maximum magnitude of the velocity is located). This work aims to present an approach of the flow pattern via a compact model based on three directional pressure loss coefficients. The values for the pressure loss coefficients are obtained through different correlations depending on the flow and geometric characteristics for the case that is being modeled. These correlations are obtained through an iterative process that compares different flow patterns obtained through different modeling strategies: the compact one that is presented in this paper and another detailed one, which was validated in previous works. Results show that if this compact model is used, an approximation of the flow pattern could be obtained with a huge decrease in the amount of time invested.

show abstract

“…The meter is widely used in industrial applications in the oil and gas, food and beverage, chemical and pharmaceutical sectors. It also provides reference measurement data in experimental research domains, including combustion engines, heat exchangers, and thermal management [3][4][5][6][7][8][9]. Although CMFM has been called the "almost perfect" flow meter [10], two-phase (gas/liquid) conditions present challenges at two levels.…”

Section: Introductionmentioning

confidence: 99%

Two-phase flow experiments with Coriolis Mass Flow Metering using complex signal processing

Henry

Zhou

et al. 2019

Flow Measurement and Instrumentation

View full text Add to dashboard Cite

Two-phase (gas/liquid) flow is common in many industrial applications but its measurement remains challenging for Coriolis mass flow meters (CMFM), especially for high Gas Void Fraction (GVF). In this paper, we present experimental results applying previously developed complex signal processing techniques for tracking the rapidly changing sensor signals generated by two-phase flow. The techniques are implemented in a new System-on-Chip (SOC) prototype transmitter connected to a commercial Coriolis flow tube. Experiments have been carried out over a range of single phase and two-phase (water/air) flows. The signal tracking as well as mass flow rate and density measurement performance is compared with that of a laboratory version of a commercial Coriolis transmitter with two-phase flow capability. The results show that the complex bandpass algorithms, coupled with flowtube control algorithms, reduce the standard deviation of the mass flow measurement by a factor of 3 or more in 50% of the experiments undertaken. For the density measurement, the corresponding reduction in standard deviation is by a factor of 6.

show abstract

A compact refrigeration system based on multijet sprays for electronics thermal management

Cited by 12 publications

References 33 publications

Effect Analysis on Thermal Management of Power Batteries Utilizing a Form-Stable Silicone Grease/Composite Phase Change Material

Effect Analysis on Thermal Management of Power Batteries Utilizing a Form-Stable Silicone Grease/Composite Phase Change Material

Compact Model of a Screen under Fan-Induced Swirl Conditions Using a Porous Media Approach

Two-phase flow experiments with Coriolis Mass Flow Metering using complex signal processing

Contact Info

Product

Resources

About