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Report on research and development achievements in fiscal 1979 in Sunshine Project for geothermal water utilizing power plants. Separate volume of surveys and studies on plant development plans (Surveys on trends in overseas technologies); 1979 nendo chinetsu nessui riyo hatsuden plant no kenkyu kaihatsu seika hokokusho (plant kaihatsu keikaku chosa kenkyu). Bessatsu (Kaigai gijutsu doko chosa)

Abstract

This paper describes surveys on trends in overseas technologies in development plans for geothermal water utilizing power plants. In heat cycles, the binary and two-stage flash cycles were analyzed by using a generalized equation of state, and theses on optimizing working fluid properties and cycle conditions with maximum thermal efficiency were described. Theses that were described include those for criteria to select working fluids and thermal power cycles against the binary cycle using a heat source at 104 to 204 degree C. The binary cycle working fluid was found better in mixed systems than in pure systems as seen from process and economic performance. The paper introduces a heat conductivity experimenting device and data required for designing a heat exchanger. It also describes the Heber geothermal experimental plant to demonstrate reasonability of assumed working media. A fluidized bed type and a shell tube type were applied to heat exchangers at the Raft River 50 MW geothermal power plant for comparison and discussion. Fouling factor was also estimated. A discussion was given on fluidity distribution of a fluidized bed heat exchanger. Design of a heat discharge system is important for geothermal power generation because heat source temperatures are so low that  More>>
Publication Date:
Mar 01, 1980
Product Type:
Technical Report
Report Number:
JP-NEDO-010018433
Resource Relation:
Other Information: PBD: Mar 1980
Subject:
15 GEOTHERMAL ENERGY; SUNSHINE PROJECT; GEOTHERMAL POWER PLANTS; THERMODYNAMIC CYCLES; BINARY-FLUID SYSTEMS; FLASHED STEAM SYSTEMS; THERMAL EFFICIENCY; WORKING FLUIDS; OPTIMIZATION; HEAT EXCHANGERS; HEBER GEOTHERMAL FIELD; RAFT RIVER VALLEY; FOULING
OSTI ID:
20102625
Research Organizations:
New Energy and Industrial Technology Development Organization, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
TRN: JN0040388
Availability:
Available to ETDE participating countries only(see www.etde.org); commercial reproduction prohibited; OSTI as DE20102625
Submitting Site:
NEDO
Size:
110 pages
Announcement Date:
May 22, 2002

Citation Formats

None. Report on research and development achievements in fiscal 1979 in Sunshine Project for geothermal water utilizing power plants. Separate volume of surveys and studies on plant development plans (Surveys on trends in overseas technologies); 1979 nendo chinetsu nessui riyo hatsuden plant no kenkyu kaihatsu seika hokokusho (plant kaihatsu keikaku chosa kenkyu). Bessatsu (Kaigai gijutsu doko chosa). Japan: N. p., 1980. Web.
None. Report on research and development achievements in fiscal 1979 in Sunshine Project for geothermal water utilizing power plants. Separate volume of surveys and studies on plant development plans (Surveys on trends in overseas technologies); 1979 nendo chinetsu nessui riyo hatsuden plant no kenkyu kaihatsu seika hokokusho (plant kaihatsu keikaku chosa kenkyu). Bessatsu (Kaigai gijutsu doko chosa). Japan.
None. 1980. "Report on research and development achievements in fiscal 1979 in Sunshine Project for geothermal water utilizing power plants. Separate volume of surveys and studies on plant development plans (Surveys on trends in overseas technologies); 1979 nendo chinetsu nessui riyo hatsuden plant no kenkyu kaihatsu seika hokokusho (plant kaihatsu keikaku chosa kenkyu). Bessatsu (Kaigai gijutsu doko chosa)." Japan.
@misc{etde_20102625,
title = {Report on research and development achievements in fiscal 1979 in Sunshine Project for geothermal water utilizing power plants. Separate volume of surveys and studies on plant development plans (Surveys on trends in overseas technologies); 1979 nendo chinetsu nessui riyo hatsuden plant no kenkyu kaihatsu seika hokokusho (plant kaihatsu keikaku chosa kenkyu). Bessatsu (Kaigai gijutsu doko chosa)}
author = {None}
abstractNote = {This paper describes surveys on trends in overseas technologies in development plans for geothermal water utilizing power plants. In heat cycles, the binary and two-stage flash cycles were analyzed by using a generalized equation of state, and theses on optimizing working fluid properties and cycle conditions with maximum thermal efficiency were described. Theses that were described include those for criteria to select working fluids and thermal power cycles against the binary cycle using a heat source at 104 to 204 degree C. The binary cycle working fluid was found better in mixed systems than in pure systems as seen from process and economic performance. The paper introduces a heat conductivity experimenting device and data required for designing a heat exchanger. It also describes the Heber geothermal experimental plant to demonstrate reasonability of assumed working media. A fluidized bed type and a shell tube type were applied to heat exchangers at the Raft River 50 MW geothermal power plant for comparison and discussion. Fouling factor was also estimated. A discussion was given on fluidity distribution of a fluidized bed heat exchanger. Design of a heat discharge system is important for geothermal power generation because heat source temperatures are so low that more than 85% of heat that has been taken in is discharged. The paper also describes turbines and other facilities. (NEDO)}
place = {Japan}
year = {1980}
month = {Mar}
}