Coupled Conduction and Intermittent Convective Heat Transfer from a Buried Pipe

Autor:	James W. Stevens
Rok vydání:	2002
Předmět:	Fluid Flow and Transfer Processes Materials science Convective heat transfer Mechanical Engineering Thermodynamics Mechanics Condensed Matter Physics Thermal conduction law.invention Physics::Fluid Dynamics law Simple (abstract algebra) Heat transfer Heat pump
Zdroj:	Heat Transfer Engineering. 23:34-43
ISSN:	1521-0537 0145-7632
DOI:	10.1080/01457630290090482
Popis:	An accurate estimate of the heat transfer from a buried pipe to the surrounding ground is essential for the design of the ground-loop portion of a ground-source heat pump. Exact analytical solutions to this problem are complicated by the fact that heat pump systems rarely operate continuously. Complete numerical simulations of system designs can be carried out, but these are unwieldy and difficult to justify for initial scoping calculations, or for preliminary performance estimates. The purpose of this article is to provide insight into the heat transfer mechanisms and to describe the development of simple algebraic correlations that can be used to approximate the intermittent overall heat transfer between a fluid flowing in an isolated buried pipe and the surrounding ground. The correlations described in this article were drawn from results of a numerical finite-difference analysis of a fluid flowing intermittently in a single round pipe and exchanging heat with the surrounding ground. It is found that t...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::783d12c4b6353eefe8b8d56b610740df https://doi.org/10.1080/01457630290090482 Zobrazit plný text záznamu Plný text ve formátu PDF