Estimating Hourly Heating and Cooling Loads from Monthly Results

In Canada, builders and energy advisors use HOT2000for simulation of new housing and retrofits for various labelling, energy rating and incentive programs as well as code compliance. HOT2000 is a monthly building energy simulation tool, specifically made for low-rise residential buildings. It calcul...

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Bibliographic Details
Published inASHRAE transactions Vol. 126; no. 2; pp. 166 - 173
Main Author Brideau, Sebastien A
Format Journal Article
LanguageEnglish
Published Atlanta American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. (ASHRAE) 01.01.2020
American Society of Heating, Refrigeration and Air Conditioning Engineers, Inc
Subjects
Analysis
Canada
Cooling loads
Economic incentives
Energy conservation
Energy rating
First principles
Flooring
Heat transfer
Heavy construction
Hot water heating
Housing
Load
Residential buildings
Retrofitting
Simulation
Software
Technology assessment
Ventilation
Canada
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Summary:In Canada, builders and energy advisors use HOT2000for simulation of new housing and retrofits for various labelling, energy rating and incentive programs as well as code compliance. HOT2000 is a monthly building energy simulation tool, specifically made for low-rise residential buildings. It calculates monthly loads from a combination offirst principles, and various simple mathematical models developedfrom hourly simulation tools. As a consequence of the methodology, many state-of-the-art Energy Conservation Measures (ECM) can not be simulated accurately in HOT2000. A Housing Technology Assessment Platform (HTAP) software was previously developed, using HOT2000 as the simulation engine. HOT2000 was chosen as the simulation engine, because of its wide adoption and acceptance by builders and professionals in Canada. HTAP can run parametric runs, and provide energy demand and costing for a variety of ECMs. However many ECMs require hourly simulations to provide accurate energy demand estimates. In order to be able to evaluate these ECMs in HTAP, a methodology has been developed to estimate hourly heating, cooling, domestic hot water, and plug load profiles using monthly loads, and hourly climate data. This paper presents the approach and its limitations, as well as some validation results.
ISSN:0001-2505