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Theoretical and Experimental Studies on an Ammonia-Based Loop Heat Pipe With a Flat Evaporator

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5 Author(s)
Adoni, A.A. ; ISRO Satellite Centre, Indian Space Res. Organ., Bangalore, India ; Ambirajan, A. ; Jasvanth, V.S. ; Kumar, D.
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An ammonia loop heat pipe (LHP) with a flat plate evaporator is developed and tested. The device uses a nickel wick encased in an aluminum-stainless steel casing. The loop is tested for various heat loads and different sink temperatures, and it demonstrated reliable startup characteristics. Results with the analysis of the experimental observation indicate that the conductance between the compensation chamber and the heater plate can significantly influence the operating temperatures of the LHP. A mathematical model is also presented which is validated against the experimental observations.

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Components and Packaging Technologies, IEEE Transactions on  (Volume:33 ,  Issue: 2 )