Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/3675
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dc.contributor.authorMalik, Vinit-
dc.contributor.authorRaghuram, B-
dc.contributor.authorNaik, B. Kiran-
dc.date.accessioned2022-05-19T06:57:24Z-
dc.date.available2022-05-19T06:57:24Z-
dc.date.issued2022-02-
dc.identifier.citation7th National and 1st International Conference on Refrigeration and Air Conditioning; NCRAC 2022, online, 24-26 Feb 2022en_US
dc.identifier.urihttp://hdl.handle.net/2080/3675-
dc.descriptionCopyright belongs to proceeding publisheren_US
dc.description.abstractHeat switches are generally used for regulating heat flow. These heat switches are categorized as mechanical and magneto-resistive heat switches. Among these, a magneto-resistive heat switch (MRHS) is used for controlling the heat flow at a very low temperature of below 10 K. Because of this advantage, it is implemented in space applications for controlling heat flow across thermally conductive material. Therefore, in the present study, by choosing MRHS, an analytical investigation is carried out for assessing the thermal performance at a very low temperature of below 10 K. Here, tungsten is used as a magneto-resistive material (MRM). Initially, an analytical model is developed for evaluating the thermal performance of MRHS. The created model was then evaluated using experimental data from the literature by selecting thermal conductivity, thermal conductance, and switching ratio as performance characteristics. From the validation analysis, it is found that the developed model has a reasonable agreement with experimental data and observed a maximum allowable error of 8.3%. Later, the developed model has been used for investigating the performance of MRHS. The inlet parameters chosen for the performance evaluation are magnetic field (MF) and MRM temperature. By observing the numerical results obtained based on the developed numerical model, it is found that for a given MRM temperature of 5 K and by varying the MF from 0.1 T–2 T, the thermal conductance increases linearly by 150%, the thermal conductivity decreases logarithmically by 97%, and switching ratio increases logarithmically by 99%, respectively. Further, it is realized that the developed model procedure can be adopted for assessing the thermal performance of different heat switches that are used for space applicationsen_US
dc.subjectMagnetic fielden_US
dc.subjectLow temperatureen_US
dc.subjectMagento-resistive materialen_US
dc.subjectAnalytical modelen_US
dc.subjectSwitching ratioen_US
dc.titleThermal Performance Assessment of Tungsten Based Magneto-Resistive Heat Switch for Space Applicationen_US
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