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Title: Toward a virtual building laboratory

Abstract

In order to achieve in a timely manner the large energy and dollar savings technically possible through improvements in building energy efficiency, it will be necessary to solve the problem of design failure risk. The most economical method of doing this would be to learn to calculate building performance with sufficient detail, accuracy and reliability to avoid design failure. Existing building simulation models (BSM) are a large step in this direction, but are still not capable of this level of modeling. Developments in computational fluid dynamics (CFD) techniques now allow one to construct a road map from present BSM's to a complete building physical model. The most useful first step is a building interior model (BIM) that would allow prediction of local conditions affecting occupant health and comfort. To provide reliable prediction a BIM must incorporate the correct physical boundary conditions on a building interior. Doing so raises a number of specific technical problems and research questions. The solution of these within a context useful for building research and design is not likely to result from other research on CFD, which is directed toward the solution of different types of problems. A six-step plan for incorporating the correct boundary conditionsmore » within the context of the model problem of a large atrium has been outlined. A promising strategy for constructing a BIM is the overset grid technique for representing a building space in a CFD calculation. This technique promises to adapt well to building design and allows a step-by-step approach. A state-of-the-art CFD computer code using this technique has been adapted to the problem and can form the departure point for this research.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab., CA (US)
Sponsoring Org.:
USDOE Assistant Secretary for Energy Efficiency and Renewable Energy (US)
OSTI Identifier:
775094
Report Number(s):
LBNL-43006
R&D Project: 474712; TRN: AH200110%%82
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Mar 1999
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; BUILDINGS; COMPUTERIZED SIMULATION; COMPUTER-AIDED DESIGN; ENERGY EFFICIENCY; FORECASTING; PERFORMANCE; THERMAL COMFORT

Citation Formats

Klems, J.H., Finlayson, E.U., Olsen, T.H., Banks, D.W., and Pallis, J.M. Toward a virtual building laboratory. United States: N. p., 1999. Web. doi:10.2172/775094.
Klems, J.H., Finlayson, E.U., Olsen, T.H., Banks, D.W., & Pallis, J.M. Toward a virtual building laboratory. United States. doi:10.2172/775094.
Klems, J.H., Finlayson, E.U., Olsen, T.H., Banks, D.W., and Pallis, J.M. Mon . "Toward a virtual building laboratory". United States. doi:10.2172/775094. https://www.osti.gov/servlets/purl/775094.
@article{osti_775094,
title = {Toward a virtual building laboratory},
author = {Klems, J.H. and Finlayson, E.U. and Olsen, T.H. and Banks, D.W. and Pallis, J.M.},
abstractNote = {In order to achieve in a timely manner the large energy and dollar savings technically possible through improvements in building energy efficiency, it will be necessary to solve the problem of design failure risk. The most economical method of doing this would be to learn to calculate building performance with sufficient detail, accuracy and reliability to avoid design failure. Existing building simulation models (BSM) are a large step in this direction, but are still not capable of this level of modeling. Developments in computational fluid dynamics (CFD) techniques now allow one to construct a road map from present BSM's to a complete building physical model. The most useful first step is a building interior model (BIM) that would allow prediction of local conditions affecting occupant health and comfort. To provide reliable prediction a BIM must incorporate the correct physical boundary conditions on a building interior. Doing so raises a number of specific technical problems and research questions. The solution of these within a context useful for building research and design is not likely to result from other research on CFD, which is directed toward the solution of different types of problems. A six-step plan for incorporating the correct boundary conditions within the context of the model problem of a large atrium has been outlined. A promising strategy for constructing a BIM is the overset grid technique for representing a building space in a CFD calculation. This technique promises to adapt well to building design and allows a step-by-step approach. A state-of-the-art CFD computer code using this technique has been adapted to the problem and can form the departure point for this research.},
doi = {10.2172/775094},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {3}
}