As-operated heat loss coefficients of residential buildings in the Pacific Northwest: An analysis of empirical space-heating energy data

Title: As-operated heat loss coefficients of residential buildings in the Pacific Northwest: An analysis of empirical space-heating energy data

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Abstract

Previous research of residential electrical space-heating data has revealed that the heat loss coefficients obtained from empirical data (``as-operated`` UAs) are, on average, about 25% below the UA calculated from the shell construction of each building. This as-operated UA is obtained from a linear regression of the measured space-heating energy consumption versus the inside-outside temperature difference. This finding indicates that simple steady-state calculation techniques for heating energy consumption utilizing only UAs may be inaccurate in estimating annual consumption. The purpose of this research was to study how climate, construction, and occupant variables may affect the as-operated UA and, therefore, the annual heating energy consumption. Specifically, the goal is to gain a greater understanding of how and why the as-operated UA differs from the construction-based nameplate UA. Multiple seasons of daily heating data from 131 occupied single-family residential sues were analyzed. A multiple linear regression was used to generate a model that utilizes the construction-based UAs and other characteristics of individual residences to predict an as-operated UA that better estimates annual heating energy.

Authors:: Lucas, R G; Pratt, R G

Publication Date:: 1992-12-31

Research Org.:: Pacific Northwest Lab., Richland, WA (United States)

Sponsoring Org.:: USDOE, Washington, DC (United States)

OSTI Identifier:: 10117410

Report Number(s):: PNL-SA-21651; CONF-921203-6
ON: DE93005084

DOE Contract Number:: AC06-76RL01830

Resource Type:: Conference

Resource Relation:: Conference: Thermal performance of the exterior envelopes of buildings,Clearwater, FL (United States),7-10 Dec 1992; Other Information: PBD: [1992]

Country of Publication:: United States

Language:: English

Subject:: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; RESIDENTIAL BUILDINGS; SPACE HEATING; DATA ANALYSIS; HEAT LOSSES; ENERGY CONSUMPTION; 320105; BUILDING SERVICES

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                    Lucas, R G, and Pratt, R G. As-operated heat loss coefficients of residential buildings in the Pacific Northwest: An analysis of empirical space-heating energy data.  United States: N. p., 1992. 
        Web.

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                    Lucas, R G, & Pratt, R G. As-operated heat loss coefficients of residential buildings in the Pacific Northwest: An analysis of empirical space-heating energy data.  United States.

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                    Lucas, R G, and Pratt, R G. Thu .  
        "As-operated heat loss coefficients of residential buildings in the Pacific Northwest: An analysis of empirical space-heating energy data".  United States.  https://www.osti.gov/servlets/purl/10117410.

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@article{osti_10117410,

  title        = {As-operated heat loss coefficients of residential buildings in the Pacific Northwest: An analysis of empirical space-heating energy data},

  author       = {Lucas, R G and Pratt, R G},

  abstractNote = {Previous research of residential electrical space-heating data has revealed that the heat loss coefficients obtained from empirical data (``as-operated`` UAs) are, on average, about 25% below the UA calculated from the shell construction of each building. This as-operated UA is obtained from a linear regression of the measured space-heating energy consumption versus the inside-outside temperature difference. This finding indicates that simple steady-state calculation techniques for heating energy consumption utilizing only UAs may be inaccurate in estimating annual consumption. The purpose of this research was to study how climate, construction, and occupant variables may affect the as-operated UA and, therefore, the annual heating energy consumption. Specifically, the goal is to gain a greater understanding of how and why the as-operated UA differs from the construction-based nameplate UA. Multiple seasons of daily heating data from 131 occupied single-family residential sues were analyzed. A multiple linear regression was used to generate a model that utilizes the construction-based UAs and other characteristics of individual residences to predict an as-operated UA that better estimates annual heating energy.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/10117410},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1992},

  month        = {12}

}

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