Development of Heating and Cooling Equations to Predict Changes in Energy Use Due to Changes in Building Envelope Thermal Characteristics

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TypeTechnical Report
Series titleInternal Report (National Research Council Canada. Institute for Research in Construction); no. IRC-IR-656
Physical description61 p.
AbstractA new energy efficiency code for nonresidential buildings is being developed in Canada. This code will have three compliance paths for the building envelope requirements - simple prescriptive tables, a tradeoff procedure, and whole-building performance modeling. In order to calculate the prescriptive requirements methods were needed to calculate the relative change in energy use for a change in envelope characteristics. Simplified methods for calculating heating and cooling loads were derived from a database of 5400 DOE-2.1E simulations of a model building. The methods predict energy use to within 10% of the DOE-2.1E simulations. The 25 locations modeled by DOE-2.1E were used to generate climate correlations to predict heating and cooling requirements for locations not in the database. These correlations can predict the loads within 20% of the DOE-2.1E results for typical heating and cooling loads. The methods derived were used in the life-cycle cost analysis used to generate the prescriptive values that appear in the new model Energy Code. They were also incorporated in the tradeoff procedure and tradeoff software.
Publication date
PublisherNational Research Council Canada
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC numberNRC-IRC-5066
NPARC number20377002
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Record identifier7457d406-b1ea-46ee-87e5-b3968490f14b
Record created2012-07-24
Record modified2017-07-05
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