2 WALL-COEFFICIENTS AND 2 CLIMATIC PARAMETERS FOR ESTIMATING THE MAXIMUM PERIODIC WALL HEAT GAIN

This item is provided by the institution :
National Technical University of Athens

Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA

see the original item page
in the repository's web site and access all digital files if the item^*

Title

2 WALL-COEFFICIENTS AND 2 CLIMATIC PARAMETERS FOR ESTIMATING THE MAXIMUM PERIODIC WALL HEAT GAIN (EN)

Creator

DEMOCRITOU, F (EN)

ANTONOPOULOS, KA (EN)

Type

journalArticle (EN)

Partial document
Publication in journal (EN)

Article
Scientific article (EN)

Issued

2014-03-01T01:42:42Z

1994 (EN)

Year

1994 (EN)

Description

Based on a finite-difference solution of the transient, periodic wall heat conduction differential equation and on the superposition principle, a correlation is developed, which expresses the maximum periodic indoor heat flow in terms of two wall-dependent coefficients m and r, and two corresponding climatic parameters DELTAT(max) and DELTAT(r). Tables with the values of the wall coefficients and the climatic parameters are available for 15 typical wall constructions and various cities around the world. Based on the present method, it is easy to develop more extensive tables. The above correlation is directly applicable when the maximum outdoor air temperature and the daily range for the location considered are known. When the temperature information is available in the form of the mean temperature and the amplitudes of a cosine and a sine variation, another correlation is suggested. The correlations developed are useful in building heat transfer applications and especially in the design of air-conditioning installations, for estimating peak loads and sizing the related equipment. (EN)

Scientific field

Energy & Fuels (EN)

Engineering and Technology ▶ Environmental Engineering
Energy and Fuels (EN)

Subject

COOLING PANELS (EN)

INDOOR (EN)

FLOW (EN)

Journal

RENEWABLE ENERGY (EN)

Language

English

Publisher