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The conversion of biomass to ethanol using geothermal energy derived from hot dry rock to supply both the thermal and electrical power requirements

저자: Brown, D.W.; Los Alamos National Laboratory.; United States. Department of Energy. Assistant Secretary for Human Resources and Administration.; United States. Department of Energy. Office of Scientific and Technical Information.
출판사: Washington, DC : United States. Dept. of Energy. Assistant Secretary for Human Resources and Administration ; Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1997.
판/형식:   전자도서 : 문서 : 컨퍼런스 간행물 : 국가 정부 간행물 : 영어
데이터베이스:WorldCat
요약:
The potential synergism between a hot dry rock (HDR) geothermal energy source and the power requirements for the conversion of biomass to fuel ethanol is considerable. In addition, combining these two renewable energy resources to produce transportation fuel has very positive environmental implications. One of the distinct advantages of wedding an HDR geothermal power source to a biomass conversion process is  더 읽기…
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자료 유형: 컨퍼런스 간행물, 문서, 정부 간행물, 국가 정부 간행물, 인터넷 자료
문서 형식: 인터넷 자원, 컴퓨터 파일
모든 저자 / 참여자: Brown, D.W.; Los Alamos National Laboratory.; United States. Department of Energy. Assistant Secretary for Human Resources and Administration.; United States. Department of Energy. Office of Scientific and Technical Information.
OCLC 번호: 68421393
메모: Published through the Information Bridge: DOE Scientific and Technical Information.
10/01/1997.
"La-ur--97-2077."
"Conf-970701--"
"DE98000265."
32. intersociety energy conversion engineering conference, Honolulu, HI (United States), 27 Jul - 2 Aug 1997.
Brown, D.W.
설명: 7 pages : digital, PDF file.

초록:

The potential synergism between a hot dry rock (HDR) geothermal energy source and the power requirements for the conversion of biomass to fuel ethanol is considerable. In addition, combining these two renewable energy resources to produce transportation fuel has very positive environmental implications. One of the distinct advantages of wedding an HDR geothermal power source to a biomass conversion process is flexibility, both in plant location and in operating process is flexibility, both in plant location and in operating conditions. The latter obtains since an HDR system is an injection conditions of flow rate, pressure, temperature, and water chemistry are under the control of the operator. The former obtains since, unlike a naturally occurring geothermal resource, the HDR resource is very widespread, particularly in the western US, and can be developed near transportation and plentiful supplies of biomass. Conceptually, the pressurized geofluid from the HDR reservoir would be produced at a temperature in the range of 200° to 220°c. The higher enthalpy portion of the geofluid thermal energy would be used to produce a lower-temperature steam supply in a countercurrent feedwater-heater/boiler. The steam, following a superheating stage fueled by the noncellulosic waste fraction of the biomass, would be expanded through a turbine to produce electrical power. Depending on the lignin fraction of the biomass, there would probably be excess electrical power generated over and above plant requirements (for slurry pumping, stirring, solids separation, etc.) which would be available for sale to the local power grid. In fact, if the hybrid HDR/biomass system were creatively configured, the power plant could be designed to produce daytime peaking power as well as a lower level of baseload power during off-peak hours.

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