Fossil fuel-fired peak heating for geothermal greenhouses

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Description

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 ... continued below

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34 p.

Creation Information

Rafferty, K. December 1, 1996.

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Description

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.

Physical Description

34 p.

Notes

OSTI as DE97004949

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  • Other Information: PBD: Dec 1996

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  • Other: DE97004949
  • Report No.: DOE/ID/13040--T38
  • Grant Number: FG07-90ID13040
  • DOI: 10.2172/469108 | External Link
  • Office of Scientific & Technical Information Report Number: 469108
  • Archival Resource Key: ark:/67531/metadc677091

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • December 1, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • Nov. 13, 2015, 7:07 p.m.

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Rafferty, K. Fossil fuel-fired peak heating for geothermal greenhouses, report, December 1, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc677091/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.