Using calibrated engineering models to predict energy savings in large-scale geothermal heat pump projects
Abstract
Energy savings performance contracting (ESPC) is now receiving greater attention as a means of implementing large-scale energy conservation projects in housing. Opportunities for such projects exist for military housing, federally subsidized low-income housing, and planned communities (condominiums, townhomes, senior centers), to name a few. Accurate prior (to construction) estimates of the energy savings in these projects reduce risk, decrease financing costs, and help avoid post-construction disputes over performance contract baseline adjustments. This paper demonstrates an improved method of estimating energy savings before construction takes place. Using an engineering model calibrated to pre-construction energy-use data collected in the field, this method is able to predict actual energy savings to a high degree of accuracy. This is verified with post-construction energy-use data from a geothermal heat pump ESPC at Fort Polk, Louisiana. This method also allows determination of the relative impact of the various energy conservation measures installed in a comprehensive energy conservation project. As an example, the breakout of savings at Fort Polk for the geothermal heat pumps, desuperheaters, lighting retrofits, and low-flow hot water outlets is provided.
- Authors:
-
- Oak Ridge National Lab., TN (United States)
- Thermal Energy System Specialists, Madison, WI (United States)
- Publication Date:
- Sponsoring Org.:
- USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States)
- OSTI Identifier:
- 649426
- Report Number(s):
- CONF-980123-
Journal ID: ISSN 0001-2505; TRN: IM9825%%39
- Resource Type:
- Conference
- Resource Relation:
- Conference: 1998 ASHRAE winter meeting, San Francisco, CA (United States), 17-21 Jan 1998; Other Information: PBD: 1998; Related Information: Is Part Of ASHRAE transactions 1998. Volume 104, Part 1B: Symposium papers; PB: 1162 p.
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ENERGY CONSUMPTION; PROBABILISTIC ESTIMATION; MATHEMATICAL MODELS; GROUND SOURCE HEAT PUMPS; MILITARY FACILITIES; RETROFITTING; APARTMENT BUILDINGS; LIGHTING SYSTEMS; ENERGY CONSERVATION
Citation Formats
Shonder, J A, Hughes, P J, and Thornton, J W. Using calibrated engineering models to predict energy savings in large-scale geothermal heat pump projects. United States: N. p., 1998.
Web.
Shonder, J A, Hughes, P J, & Thornton, J W. Using calibrated engineering models to predict energy savings in large-scale geothermal heat pump projects. United States.
Shonder, J A, Hughes, P J, and Thornton, J W. 1998.
"Using calibrated engineering models to predict energy savings in large-scale geothermal heat pump projects". United States.
@article{osti_649426,
title = {Using calibrated engineering models to predict energy savings in large-scale geothermal heat pump projects},
author = {Shonder, J A and Hughes, P J and Thornton, J W},
abstractNote = {Energy savings performance contracting (ESPC) is now receiving greater attention as a means of implementing large-scale energy conservation projects in housing. Opportunities for such projects exist for military housing, federally subsidized low-income housing, and planned communities (condominiums, townhomes, senior centers), to name a few. Accurate prior (to construction) estimates of the energy savings in these projects reduce risk, decrease financing costs, and help avoid post-construction disputes over performance contract baseline adjustments. This paper demonstrates an improved method of estimating energy savings before construction takes place. Using an engineering model calibrated to pre-construction energy-use data collected in the field, this method is able to predict actual energy savings to a high degree of accuracy. This is verified with post-construction energy-use data from a geothermal heat pump ESPC at Fort Polk, Louisiana. This method also allows determination of the relative impact of the various energy conservation measures installed in a comprehensive energy conservation project. As an example, the breakout of savings at Fort Polk for the geothermal heat pumps, desuperheaters, lighting retrofits, and low-flow hot water outlets is provided.},
doi = {},
url = {https://www.osti.gov/biblio/649426},
journal = {},
issn = {0001-2505},
number = ,
volume = ,
place = {United States},
year = {Thu Oct 01 00:00:00 EDT 1998},
month = {Thu Oct 01 00:00:00 EDT 1998}
}