Thermostatistical Estimations of Vapor-State Molecules affected by Gravity in a Heat Pipe

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概要

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• Some thermodynamical properties of vapor-state molecules in a heat pipe are analytically examined in an unsteady quasi-thermoequilibrium state. Firstly as an analytical procedure, the hamiltonian of a gas molecule is formulated as the sum of those energies of the translation, the intermolecular interaction, the rotation, the vibration and the work with respect to the ensemble average of an unsteady velocity of a vapor-state molecule in a gravity. The partition function and the free energy in this system are secondly introduced by using the hamiltonian. According to the thermodynamical relations, the entropy and the specific heat per mol of the vapor-state molecules are derived from the free energy and are finally estimated to examine the shifts affected by the gravity from the conventional values which not include any gravitational term.

• 宇宙航空研究開発機構の論文
• 1988-03-00

著者

• ETORI Kanji

  Department of Applied Physics, Faculty of Engineering

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