Starter Motor Sizing For Large Gas Turbine (Single-Shaft) Driven LNG Strings.
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The purpose of this paper is to describe how computer simulation was used to size the main starter motors for single shaft gas turbine driven compressor strings used in a large LNG plant. The paper describes how the components of the system were modelled and discusses assumptions used in the calculations. The paper presents the actual computer output plots showing the predicted torque loading on the motor and the contributions of each of the components in the string to this predicted loading. The simulation program was also used to predict the loading of the motor during a full load test at the compressor vendor's facility. A torquemeter was used to measure the output of the motor during the string acceleration. The paper presents the results of the simulation prediction for the test runs and correlates the actual test measurements to the prediction.
Heckel, Bruce G.; Davis, Frank W. (1998). Starter Motor Sizing For Large Gas Turbine (Single-Shaft) Driven LNG Strings.. Texas A&M University. Turbomachinery Laboratories. Available electronically from