Effect of the inclination angle on the performance of 100 and 30 mesh copper water heat pipes for application in a Stirling engine

Santos, Ana Maria dos; Leite, Valéria; Guimarães, Lamartine Nogueira Frutuoso; Theodoro, Rafael

doi:10.26678/abcm.cobem2021.cob2021-0857

Cited by 1 publication

(2 citation statements)

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“…However, this experiment will serve as a basis for future work using a nuclear source. In previous works, it was obtained by simulation in the ANSYS transient thermal software that the heat pipe condenser should exceed a temperature of 220º [10][11]. This value is sufficient to conduct heat to the adapter and activate the Stirling engine.…”

Section: Introductionmentioning

confidence: 99%

“…Also, the copper heat pipe evaporator of this work should not exceed the safety temperature of 270°C to avoid fractures and accidents. The authors tested the existing heat pipes in the IEAv at different inclination angles and amount of working fluid [11]. The results of these researches showed that the minimum volume of working fluid (deionized water) must be 87% of the evaporator volume.…”

Section: Introductionmentioning

confidence: 99%

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Copper water heat pipe applied for Stirling engine

2022

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Power generation in remote locations requires the advancement of efficient and long-lasting power generation technologies. One possible solution is a microreactor, which uses heat pipes to transport fission heat from a nuclear source to Stirling engines producing energy. In this context, TERRA (Advanced Fast Reactor Technology) project conducted by the Institute for Advanced Studies (IEAv) developed a Stirling engine and copper-water heat pipes for an initial study of both coupled devices. However, before using a nuclear source, it is necessary to understand the thermal behavior of the devices using an electrical heating source. Thus, the objective of this work is to test experimentally if a copper heat pipe can carry the necessary heat to activate the Free Piston Stirling engine. For this, it was necessary to develop a copper adapter to connect the pipe to the engine. The pipe was connected to the engine and temperatures were collected using T-thermocouples. The results of the experiments showed that the heat pipe was able to transport 28 W to the Stirling engine, which ran continuously. The maximum heat pipe temperatures were 253°C and the Stirling engine ran at 212°C in the hot source. Therefore, it was demonstrated that the IEAv´s copper-water heat pipe is capable of conducting the necessary heat to activate the IEAv´s Stirling engine and produce electricity. The results will form the basis for the future application of a nuclear source.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%