Solar Upgrading of Fuels for Generation of Electricity
Author:
Tamme Rainer1, Buck Reiner1, Epstein Michael2, Fisher Uriyel3, Sugarmen Chemi3
Affiliation:
1. Deutsches Zentrum fu¨r Luft- und Raumfahrt (DLR), Pfaffenwaldring 38-40, D-70569 Stuttgart, Germany 2. Weizmann Institute of Science (WIS), Solar Research Facilities Unit, P.O. Box 26, Rehovot 76100, Israel 3. ORMAT Industries Ltd., P.O. Box 68, Yavne 70650, Israel
Abstract
This paper presents a novel process comprising solar upgrading of hydrocarbons by steam reforming in solar specific receiver-reactors and utilizing the upgraded, hydrogen-rich fuel in high efficiency conversion systems, such as gas turbines or fuel cells. In comparison to conventionally heated processes about 30% of fuel can be saved with respect to the same specific output. Such processes can be used in small scale as a stand-alone system for off-grid markets as well as in large scale to be operated in connection with conventional combined-cycle plants. The complete reforming process will be demonstrated in the SOLASYS project, supported by the European Commission in the JOULE/THERMIE framework. The project has been started in June 1998. The SOLASYS plant is designed for 300 kWel output, it consists of the solar field, the solar reformer and a gas turbine, adjusted to operate with the reformed gas. The SOLASYS plant will be operated at the experimental solar test facility of the Weizmann Institute of Science in Israel. Start-up of the pilot plant is scheduled in April 2001. The midterm goal is to replace fossil fuels by renewable or non-conventional feedstock in order to increase the share of renewable energy and to establish processes with only minor or no CO2 emission. Examples might be upgrading of bio-gas from municipal solid waste as well as upgrading of weak gas resources.
Publisher
ASME International
Subject
Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment
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