Accession Number : AD0683130

Title :   A METHOD FOR DETERMINING THE ECONOMIC EFFECTIVENESS OF GAS TURBINE UNIT SYSTEMS WITH THE CONSIDERATION OF OPTIMUM PARAMETERS,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Markovskii,F. T. ; Usik,A. F.

Report Date : 06 SEP 1968

Pagination or Media Count : 14

Abstract : A method for determining the economic effectiveness of nonregenerative gas turbine units (GTU) was developed (with consideration of the thermodynamic and engineering-economic characteristics). This method was formulated for gas turbine units which operate at rated power (for generating electricity). The costs are expressed as functions of thermodynamic parameters and economic operating conditions. The optimum combination of thermodynamic properties is determined first. Various considerations involved in designing units using expensive fuel for long periods are discussed for the case when maximum operating efficiency is the main concern. For peak units running on cheap fuel, the importance of other factors increases. When the parameters are interdependent, the problem is solved by the method of Lagrange factors; when the parameters are independent, a system of partial differential equations must be solved. Balance equations for gas turbine unit shaft operations and for compression ratios are used to reduce the interdependency of parameters and to utilize the latter method. Compression ratios affecting the investment and operating costs are studied in detail. The calculated costs are found to agree well with actual costs. A final expression is obtained for annual costs in terms of the gas turbine unit parameters. (Author)

Descriptors :   (*GAS TURBINES, *COST EFFECTIVENESS), THERMODYNAMICS, OPTIMIZATION, EFFICIENCY, FUELS, MATHEMATICAL ANALYSIS, USSR

Subject Categories : Economics and Cost Analysis
      Electric Power Production and Distribution
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE