ENERGY AND COST SAVINGS RESULTS FOR ADVANCED TECHNOLOGY SYSTEMS FROM THE COGENERATION TECHNOLOGY ALTERNATIVES STUDY (CTAS)

摘要

This paper presents an overview of the organization and methodology and a sum¬mary of selected results to date of the Cogeneration Technology Alternatives Study (CTAS). The CTAS is being performed by NASA for the Division of Fossil Fuel Utilization of the Department of Energy (DOE). The effort is being carried out via study contracts with industry supported by NASA in-house analyses at the Lewis Re¬search Center and the Jet Propulsion Laboratory. The objectives of the study are to identify the most attractive advanced energy conversion systems for industrial co-generation applications in the 1985-2000 time period and to assess the advantages of advanced technology systems compared to those systems commercially available today. Advanced systems being studied include steam turbines, open and closed cycle gas turbines, combined cycles, diesel engines, Stirling engines, phosphoric acid and molten carbonate fuel cells and thermionics. Steam turbines, open cycle gas turbines, combined cycles, and diesel engines are also being analyzed in versions typical of today's commercially available technology to provide a base against which to measure the advanced systems. Cogeneration applications in the major energy consuming manu¬facturing industries are being considered. Results of the study in terms of plant level energy savings, annual energy cost savings and economic attractiveness are presented for the various energy conversion systems considered. Sensitivity of the results to variations in assumed study groundrules such as fuel prices and the price of purchased electricity and the potential effect of regional characteristics are discussed.