Fossil fuel-fired peak heating for geothermal greenhouses
Abstract
This report examines the capital and operating costs for fossil fuel-fired peak heating systems in geothermally (direct use) heated greenhouses. Issues covered include equipment capital costs, fuel requirements, maintenance and operating costs, system control and integration into conventional hot water greenhouse heating systems. Annual costs per square foot of greenhouse floor area are developed for three climates: Helena, MT; Klamath Falls, OR and San Bernardino, CA, for both boiler and individual unit heater peaking systems. In most applications, peaking systems sized for 60% of the peak load are able to satisfy over 95% of the annual heating requirements and cost less than $0.15 per square foot per year to operate. The propane-fired boiler system has the least cost of operation in all but Helena, MT climate.
- Authors:
- Publication Date:
- Research Org.:
- Oregon Inst. of Tech., Klamath Falls, OR (United States). Geo-Heat Center
- Sponsoring Org.:
- USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC (United States)
- OSTI Identifier:
- 469108
- Report Number(s):
- DOE/ID/13040-T38
ON: DE97004949; TRN: 97:002951
- DOE Contract Number:
- FG07-90ID13040
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: Dec 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; GREENHOUSES; AUXILIARY HEATING; CAPITALIZED COST; OPERATING COST; GEOTHERMAL HEATING SYSTEMS; FOSSIL FUELS; Geothermal Legacy
Citation Formats
Rafferty, K. Fossil fuel-fired peak heating for geothermal greenhouses. United States: N. p., 1996.
Web. doi:10.2172/469108.
Rafferty, K. Fossil fuel-fired peak heating for geothermal greenhouses. United States. https://doi.org/10.2172/469108
Rafferty, K. 1996.
"Fossil fuel-fired peak heating for geothermal greenhouses". United States. https://doi.org/10.2172/469108. https://www.osti.gov/servlets/purl/469108.
@article{osti_469108,
title = {Fossil fuel-fired peak heating for geothermal greenhouses},
author = {Rafferty, K},
abstractNote = {This report examines the capital and operating costs for fossil fuel-fired peak heating systems in geothermally (direct use) heated greenhouses. Issues covered include equipment capital costs, fuel requirements, maintenance and operating costs, system control and integration into conventional hot water greenhouse heating systems. Annual costs per square foot of greenhouse floor area are developed for three climates: Helena, MT; Klamath Falls, OR and San Bernardino, CA, for both boiler and individual unit heater peaking systems. In most applications, peaking systems sized for 60% of the peak load are able to satisfy over 95% of the annual heating requirements and cost less than $0.15 per square foot per year to operate. The propane-fired boiler system has the least cost of operation in all but Helena, MT climate.},
doi = {10.2172/469108},
url = {https://www.osti.gov/biblio/469108},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Dec 01 00:00:00 EST 1996},
month = {Sun Dec 01 00:00:00 EST 1996}
}