The decremented average ground-temperature method for predicting the thermal performance of underground walls

Ackridge, J M; Poulos, J F.J.

Title: The decremented average ground-temperature method for predicting the thermal performance of underground walls

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Abstract

At present, the only accurate method for predicting the thermal performance of underground structures is through the use of large computer models and finite difference equations. Due to the prohibitively high cost of setting up and running these computer models, thermal analysis of subsurface buildings is inaccessible to many prospective users. The existing manual methods for calculating loads on underground buildings provide only rough estimates of thermal performance. All of the existing manual methods ignore the effect of the building on the adjacent ground temperature during an annual cycle, resulting in conservative estimates of the building's heating performance and optimistic estimates of the cooling performance. This paper presents a manual calculation method for accurately predicting the thermal performance of underground walls and gives a table of DECREMENT FACTORS which account for the decreasing thermal loss from underground walls over time.

Authors:: Ackridge, J M; Poulos, J F.J.

Publication Date:: Wed Jun 01 00:00:00 EDT 1983

Research Org.:: Georgia Institute of Technology, Atlanta, Georgia

OSTI Identifier:: 6772042

Report Number(s):: CONF-830640-
Journal ID: CODEN: ASHTA

Resource Type:: Conference

Journal Name:: ASHRAE Trans.; (United States)

Additional Journal Information:: Journal Volume: 89; Conference: ASHRAE conference, Washington, DC, USA, 26 Jun 1983

Country of Publication:: United States

Language:: English

Subject:: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; BUILDINGS; WALLS; HEAT LOSSES; THERMAL EFFICIENCY; CALCULATION METHODS; COMPUTER CALCULATIONS; COMPUTERIZED SIMULATION; FINITE DIFFERENCE METHOD; TEMPERATURE MEASUREMENT; THERMAL INSULATION; UNDERGROUND; EFFICIENCY; ENERGY LOSSES; ITERATIVE METHODS; LEVELS; LOSSES; NUMERICAL SOLUTION; SIMULATION; 320103* - Energy Conservation, Consumption, & Utilization- School, Municipal, & Other Public Buildings- (-1987)

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                    Ackridge, J M, and Poulos, J F.J. The decremented average ground-temperature method for predicting the thermal performance of underground walls.  United States: N. p., 1983. 
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                    Ackridge, J M, & Poulos, J F.J. The decremented average ground-temperature method for predicting the thermal performance of underground walls.  United States.

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                    Ackridge, J M, and Poulos, J F.J. 1983.  
        "The decremented average ground-temperature method for predicting the thermal performance of underground walls".  United States.

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@article{osti_6772042,

  title        = {The decremented average ground-temperature method for predicting the thermal performance of underground walls},

  author       = {Ackridge, J M and Poulos, J F.J.},

  abstractNote = {At present, the only accurate method for predicting the thermal performance of underground structures is through the use of large computer models and finite difference equations. Due to the prohibitively high cost of setting up and running these computer models, thermal analysis of subsurface buildings is inaccessible to many prospective users. The existing manual methods for calculating loads on underground buildings provide only rough estimates of thermal performance. All of the existing manual methods ignore the effect of the building on the adjacent ground temperature during an annual cycle, resulting in conservative estimates of the building's heating performance and optimistic estimates of the cooling performance. This paper presents a manual calculation method for accurately predicting the thermal performance of underground walls and gives a table of DECREMENT FACTORS which account for the decreasing thermal loss from underground walls over time.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/6772042},
  journal      = {ASHRAE Trans.; (United States)},
number       = ,

  volume       = 89,

  place        = {United States},

  year         = {Wed Jun 01 00:00:00 EDT 1983},

  month        = {Wed Jun 01 00:00:00 EDT 1983}

}

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