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Title: Thermal performance and wall ratings

Abstract

This paper proposes for consideration as a nationally accepted consensus methodology a procedure for estimating the whole opaque wall R-value (whole-wall R-value), independent of system type and construction materials. The methodology is based on results from a three-dimensional heat conduction model capable of simulating heat flow in a variety of wood, metal, and masonry systems. These simulation results lead to a whole-wall R-value which include the thermal performance of not only the clear wall area, with insulation and structural elements, but also typical envelope interface details, including wall/wall (corners), wall/roof, wall/floor, wall/door, and wall/window connections. Results from these detailed computer simulations are combined into a single whole-wall R-value estimation and compared with simplified center-of-cavity and clear wall R-values.

Authors:
;  [1]
  1. Oak Ridge National Lab., TN (United States)
Publication Date:
OSTI Identifier:
230825
Resource Type:
Journal Article
Journal Name:
ASHRAE Journal
Additional Journal Information:
Journal Volume: 38; Journal Issue: 3; Other Information: PBD: Mar 1996
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; WALLS; R FACTORS; BUILDINGS; CALCULATION METHODS; THERMAL CONDUCTIVITY; HEAT TRANSFER

Citation Formats

Christian, J.E., and Kosny, J. Thermal performance and wall ratings. United States: N. p., 1996. Web.
Christian, J.E., & Kosny, J. Thermal performance and wall ratings. United States.
Christian, J.E., and Kosny, J. Fri . "Thermal performance and wall ratings". United States.
@article{osti_230825,
title = {Thermal performance and wall ratings},
author = {Christian, J.E. and Kosny, J.},
abstractNote = {This paper proposes for consideration as a nationally accepted consensus methodology a procedure for estimating the whole opaque wall R-value (whole-wall R-value), independent of system type and construction materials. The methodology is based on results from a three-dimensional heat conduction model capable of simulating heat flow in a variety of wood, metal, and masonry systems. These simulation results lead to a whole-wall R-value which include the thermal performance of not only the clear wall area, with insulation and structural elements, but also typical envelope interface details, including wall/wall (corners), wall/roof, wall/floor, wall/door, and wall/window connections. Results from these detailed computer simulations are combined into a single whole-wall R-value estimation and compared with simplified center-of-cavity and clear wall R-values.},
doi = {},
journal = {ASHRAE Journal},
number = 3,
volume = 38,
place = {United States},
year = {1996},
month = {3}
}