Modelling Friction Contacts in Structural Dynamics and its Application to Turbine Bladed Disks

Abstract

Five possible schemes have been considered for increasing the electricitygeneration potential of sugar mills, including the uses of a bagasse dryer, cane trash to operate the mill power plant during the non-milling season and change from the existing back-pressure turbine to single or double extraction-condensing turbines. Five alternatives are compared on the basis of seven criteria: 1. (i) private-sector investment, 2. (ii) government-sector investment, 3. (iii) operating cost of the total generating system, 4. (iv) SO2 emission from the power plant, 5. (v) employment generation, 6. (vi) dependence on foreign assistance, and 7. (vii) local availability of the system components. A decision analysis (Analytical Hierarchy Process, AHP) is used to show that the single and double extraction-condensing turbine systems are preferred because of relatively low government investment, operating cost and SO2 emission. © 1992.