Year: 2000
Type: article
Abstract: Finite-difference methods, when applied to the differential equations modelling energy flows in buildings, give rise to a system of non-linear difference equations. A frequently used direct solution method involving linearisation is analysed and a related method is proposed. These and one other connected method are compared using a building-related test problem prepared for this purpose. The proposed numerical method is found to produce least error, about 30% less than the commonly used method, and it is recommended for inclusion in building energy simulation software. A fundamental method for estimating the pre-conditioning period of a building, arising from the work, is discussed.
Authors: M.E. Crowley, M S J Hashmi
Institutions: Dublin Institute of Technology, Dublin City University
Language: English
Subfield: Building and Construction
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2013264266