Thermal numerical model of a high temperature heat pipe heat exchanger under radiation

Jung, Eui Guk; Boo, Joon Hong

doi:10.1016/j.apenergy.2014.08.092

Cited by 39 publications

(10 citation statements)

References 11 publications

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“…The fins were made of copper with a thermal conductivity of 400 W/(m.K)). The thermal conductivity (k e = 57, 129.8 W/(m.K) k c = 30, 343.21 W/(m.k)) of the HP was obtained by calculating the thermal resistance [17,46]. The dimensions of the aluminum plates, fins, and HP are shown in Table 2, and the entire cooling system diagram is shown in Figure 3.…”

Section: Cooling Systemmentioning

confidence: 99%

Heat Pipe Thermal Management Based on High-Rate Discharge and Pulse Cycle Tests for Lithium-Ion Batteries

Deng

Xie

et al. 2019

Energies

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A battery thermal management system (BTMS) ensures that batteries operate efficiently within a suitable temperature range and maintains the temperature uniformity across the battery. A strict requirement of the BTMS is that increases in the battery discharge rate necessitate an increased battery heat dissipation. The advantages of heat pipes (HPs) include a high thermal conductivity, flexibility, and small size, which can be utilized in BTMSs. This paper experimentally examines a BTMS using HPs in combination with an aluminum plate to increase the uniformity in the surface temperature of the battery. The examined system with high discharge rates of 50, 75, and 100 A is used to determine its effects on the system temperature. The results are compared with those for HPs without fins and in ambient conditions. At a 100 A discharge current, the increase in battery temperature using the heat pipe with fins (HPWF) method is 4.8 °C lower than for natural convection, and the maximum temperature difference between the battery surfaces is 1.7 °C and 6.0 °C. The pulse circulation experiment was designed considering that the battery operates with a pulse discharge and temperature hysteresis. The depth of discharge is also considered, and the states-of-charge (SOC) values were 0.2, 0.5, and 0.8. The results of the two heat dissipation methods are compared, and the optimal heat dissipation structure is obtained by analyzing the experimental results. The results show that when the ambient temperature is 37 °C, differences in the SOC do not affect the battery temperature. In addition, the HPWF, HP, and natural convection methods reached stable temperatures of 40.8, 44.3, and the 48.1 °C, respectively the high temperature exceeded the battery operating temperature range.

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Section: Cooling Systemmentioning

confidence: 99%

Heat Pipe Thermal Management Based on High-Rate Discharge and Pulse Cycle Tests for Lithium-Ion Batteries

Deng

Xie

et al. 2019

Energies

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“…They found that the heat transfer rate increases by using a channel fully filled with the porous insert. Radiation heat transfer analysis in the high-temperature heat pipe heat exchanger has been investigated by Jung and Boo [9]. It is found that the heat transfer rate increases and the temperature distribution becomes more uniform by considering radiant heat transfer.…”

Section: Introductionmentioning

confidence: 99%

Heat transfer enhancement and pressure drop penalty in porous solar heat exchangers: A sensitivity analysis

Rashidi

Bovand

Esfahani

2015

Energy Conversion and Management

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“…6 Söylemez 7 introduced for extreme high-temperature utilizations exceeding 500°C, liquid metals like sodium, lithium, potassium, and cesium are commonly employed as WF. The container materials in such cases must possess chemical inertness, 8 resistance to corrosion. [9][10][11] While numerous studies have investigated a variety of temperatures with HPHEXs, there has been limited research focused on HPHEXs with high-temperature variations.…”

Section: Introductionmentioning

confidence: 99%

Opportunities, challenges, and state of the art of flexible heat‐pipe heat exchangers: A comprehensive review

V. K.

2023

Heat Trans

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Heat pipes (HPs) play a pivotal role in efficiently managing the thermal challenges posed by high heat flux devices. To facilitate their operation at extremely low temperatures, specialized working fluids with low‐boiling points are a necessity. HPs serve as efficient heat exchanger (HEX) in diverse applications, such as heat pumps and heat‐transfer components. In the realm of space applications, HP is indispensable for cooling electronic components within two‐phase thermal control systems. Notably, the recent significant reduction in HP production costs has paved the way for synergizing HP with HEX, promising substantial energy savings. This comprehensive review centers its focus on the advancements in HEX‐based flexible HP systems. It critically evaluates various performance models and investigates key findings from a multitude of literature papers that pertain to HEX applications. The review encompasses a wide spectrum of innovations, including conventional, pulsating, and thermosyphons (gravity‐assisted) in HEX. It further explores studies on recuperative and regenerative HEX configurations. The surveyed literature underscores the critical role played by the choice of operating fluid and heat load in significantly influencing HP performance. This study offers a comprehensive understanding of key outcomes, strengths, limitations, and specific applications of HP and HEX. The review also highlights the significance of operating fluid selection and considerations related to heat load while outlining exciting opportunities for future research in this domain. Moreover, it introduces several novel concepts for future studies in pertinent domains, offering promising directions for further exploration within this field.

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Thermal numerical model of a high temperature heat pipe heat exchanger under radiation

Cited by 39 publications

References 11 publications

Heat Pipe Thermal Management Based on High-Rate Discharge and Pulse Cycle Tests for Lithium-Ion Batteries

Heat Pipe Thermal Management Based on High-Rate Discharge and Pulse Cycle Tests for Lithium-Ion Batteries

Heat transfer enhancement and pressure drop penalty in porous solar heat exchangers: A sensitivity analysis

Opportunities, challenges, and state of the art of flexible heat‐pipe heat exchangers: A comprehensive review

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