Thermal Steady States of Gases in a Gravitational Field

Autor:	Kunihiko Kigoshi
Rok vydání:	2011
Předmět:	Physics Temperature gradient Range (particle radiation) Gravitational field Heat transfer Thermal Vertical direction General Physics and Astronomy Magnitude (mathematics) Mechanics Physical and Theoretical Chemistry Gravitational acceleration Mathematical Physics
Zdroj:	Zeitschrift für Naturforschung A. 66:123-133
ISSN:	1865-7109 0932-0784
DOI:	10.1515/zna-2011-1-217
Popis:	This paper presents results on observations of a temperature difference between the top and bottom of a vessel filled with gas in a gravitational field. The observed temperature at the top of the vessel was always lower than the temperature at the bottom of the vessel, and this temperature difference was persistent and steady over more than 20 h. The magnitude of the temperature difference depends on the types of gas molecules present but is independent of the gas pressure in the vessel within the range from 2.7×104 Pa to 27 Pa. A temperature difference between the top and the bottom is only observed along the vertical direction and is only observed when the vessel contains a gas. These experimental results indicate a gravity effect on molecular heat transfer which enables the transport of energy in the gas without a thermal gradient.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::783fa4e057776ee5e486f17182e7cdf1 https://doi.org/10.1515/zna-2011-1-217 Zobrazit plný text záznamu