An Optimum Fuel Mix Model for Geothermal District Space Heating Systems
- Key words
- Direct Use; Numerical Model; Capacity; Peak Demand; Hybrid Systems
- Conference
- Geothermal Resources Council Transactions
- Year
- 1981
- Session
- Direct use; District heating/cooling; Economics
- Language
- English
Abstract
Geothermal district space heating systems that are sized to accommodate extreme weather conditions will have excess capacity during the milder portions of the year. By incorporating a lower capital cost, higher fuel cost system for servicing the peak heating requirements, the excess geothermal capacity, and therefore the total annual cost, may be reduced. A model that approximates the least cost percent of peak demand, for which the geothermal system should be sized, is developed in this paper.
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