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Volume 12
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10.3390/app122211661
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Article

Experimental Investigation on a Novel Necking Heat Pipe with Double-End Heating for Thermal Management of the Overload Operation

by
Jie Li
1,
Shiwei Zhang
1,
Heng Tang
2,
Yifu Liang
1,*,
Sheng Wang
3,
Guisheng Zhong
4 and
Yong Tang
1
1
School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China
2
Shenzhen Key Laboratory of High Performance Nontraditional Manufacturing, College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518000, China
3
Academy of Space Information Systems, Xi’an 710100, China
4
Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2022, 12(22), 11661; https://doi.org/10.3390/app122211661
Submission received: 24 October 2022 / Revised: 14 November 2022 / Accepted: 15 November 2022 / Published: 16 November 2022
(This article belongs to the Special Issue Multi-Phase Flow and Heat Transfer)
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Featured Application

This work proposed a novel necking heat pipe with double-end heating, which could be utilized in the heat pipe systems to obtain different thermal performances for complicated working situations, especially for the overload operation situation. For example, the waste heat of a low-power chip can be utilized to drive a high-power chip working under the overload situation on the same circuit board, which can be considered waste heat recovery and utilization.

Abstract

This work proposed a novel necking heat pipe with double-end heating for thermal management of the overload operation. The addition of another heat load was adopted to obtain a higher threshold critical power for the heat pipe system. The thermal performance of thermal switch heat pipe (TSHP) and traditional grooved heat pipe (TGHP) was investigated experimentally, including the threshold critical power, starting characteristic, recovery characteristic, surface temperature distribution, thermal resistance, etc. The optimized TSHP exhibited a larger threshold critical power range with low additional heat load input (from 55 W to 65 W, almost 20% increase), low starting additional heat load input (2 W), good recovery characteristic (less than 150 s from 75 °C to normal after overload), and low thermal resistance with additional heat load input (less than 0.13 °C/W). These results indicate that the optimized TSHP can offer great potential for the overload operation situation with the additional heat load. Such a novel necking heat pipe with double-end heating can be utilized in heat pipe systems to obtain different thermal performances for complicated working situations, especially for the overload operation situation.
Keywords: novel necking heat pipe; double-end heating; thermal resistance; overload operation novel necking heat pipe; double-end heating; thermal resistance; overload operation

Share and Cite

MDPI and ACS Style

Li, J.; Zhang, S.; Tang, H.; Liang, Y.; Wang, S.; Zhong, G.; Tang, Y. Experimental Investigation on a Novel Necking Heat Pipe with Double-End Heating for Thermal Management of the Overload Operation. Appl. Sci. 2022, 12, 11661. https://doi.org/10.3390/app122211661

AMA Style

Li J, Zhang S, Tang H, Liang Y, Wang S, Zhong G, Tang Y. Experimental Investigation on a Novel Necking Heat Pipe with Double-End Heating for Thermal Management of the Overload Operation. Applied Sciences. 2022; 12(22):11661. https://doi.org/10.3390/app122211661

Chicago/Turabian Style

Li, Jie, Shiwei Zhang, Heng Tang, Yifu Liang, Sheng Wang, Guisheng Zhong, and Yong Tang. 2022. "Experimental Investigation on a Novel Necking Heat Pipe with Double-End Heating for Thermal Management of the Overload Operation" Applied Sciences 12, no. 22: 11661. https://doi.org/10.3390/app122211661

APA Style

Li, J., Zhang, S., Tang, H., Liang, Y., Wang, S., Zhong, G., & Tang, Y. (2022). Experimental Investigation on a Novel Necking Heat Pipe with Double-End Heating for Thermal Management of the Overload Operation. Applied Sciences, 12(22), 11661. https://doi.org/10.3390/app122211661

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