Abstract
The concept of hybrid utilization of fossil and geothermal energy is discussed. Generalized performance measures are defined. The concept is applied to two types of plant: the geothermal-preheat hybrid and the fossil-superheat hybrid. In the first, the geothermal fluid is used for preheating the feedwater in a Rankine steam power cycle; in the second, steam produced by flashing a geothermal fluid is superheated in a fossil-fired superheater. Both hybrid systems are described and analyzed; figures of merit are computed for each. Results are given for a typical case of a geofluid at 200 degree C, and show that a geothermal-preheat hybrid plant can produce 4% more work than could be obtained from using the fossil fuel in a state-of-the-art power plant, or 60% more work than a state-of-the-art geothermal plant could yield, for the same input.
| Original language | English (US) |
|---|---|
| Pages | 960-970 |
| Number of pages | 11 |
| State | Published - 1978 |
| Event | Energy Technol 5, Proc of the Energy Technol Conf, 5th - Washington, DC, USA Duration: Feb 27 1978 → Mar 1 1978 |
Other
| Other | Energy Technol 5, Proc of the Energy Technol Conf, 5th |
|---|---|
| City | Washington, DC, USA |
| Period | 2/27/78 → 3/1/78 |
ASJC Scopus subject areas
- General Engineering