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A 15kwe (nominal) solar thermal electric power conversion concept definition study: steam rankine reheat reciprocator system
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Poulin, E. Fuller, H. Demler, R. Dantowitz, P. |
| Copyright Year | 1979 |
| Description | An evaluation was made of the potential of a steam Rankine reheat reciprocator engine to operate at high efficiency in a point-focusing distributed receiver solar thermal-electric power system. The scope of the study included the engine system and electric generator; not included was the solar collector/mirror or the steam generator/receiver. A parametric analysis of steam conditions was completed leading to the selection of 973 K 12.1 MPa as the steam temperature/pressure for a conceptual design. A conceptual design was completed for a two cylinder/ opposed engine operating at 1800 rpm directly coupled to a commercially available induction generator. A unique part of the expander design is the use of carbon/graphite piston rings to eliminate the need for using oil as an upper cylinder lubricant. The evaluation included a system weight estimate of 230 kg at the mirror focal point with the condenser mounted separately on the ground. The estimated cost of the overall system is $1932 or $90/kW for the maximum 26 kW output. |
| File Size | 2496337 |
| Page Count | 60 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19800008231 |
| Archival Resource Key | ark:/13960/t09w57z4t |
| Language | English |
| Publisher Date | 1979-06-01 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Solar Generators Thermoelectric Power Generation Cost Estimates Solar Energy Conversion Systems Engineering Steam Rankine Cycle Parameterization Piston Engines Energy Conversion Efficiency Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
