Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2172/469108 |
| 报告编号 | DOE/ID/13040--T38 |
| 来源ID | OSTI_ID: 469108 |
| Fossil fuel-fired peak heating for geothermal greenhouses | |
| Rafferty, K. | |
| 英文摘要 | 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. |
| 出版年 | 1996 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| 来源学科分类 | 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION ; GREENHOUSES ; AUXILIARY HEATING ; CAPITALIZED COST ; OPERATING COST ; GEOTHERMAL HEATING SYSTEMS ; FOSSIL FUELS Geothermal Legacy |
| URL | http://www.osti.gov/scitech/servlets/purl/469108 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/266794 |
| 推荐引用方式 GB/T 7714 | Rafferty, K.. Fossil fuel-fired peak heating for geothermal greenhouses,1996. |
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