Gas Generator Efficiency Calculation

This assumes a 1x1 ccgt configuration one gas turbine and heat recovery steam generator supplying one steam turbine air cooled condensers and a bypass stack to isolate the steam generating portion of the plant from the gas turbine.

Gas generator efficiency calculation.

Download excel calculator for electric generator. Ignore the losses in the ducting gear box and generator. Figure 2 shows efficiency curves for plants operating at summer ambient conditions of 25ºc 77ºf. Electrical efficiency values assume a generator efficiency of 94 at 0 8pf.

Generator energy conversion efficiency η gen 0 985 per unit fuel lhv for hydrocarbon natural gas 37 50 mj kg fuel air ratio by mass 0 01 per unit f 2 basic requirements assume constant specific heat c p c pc andγ γ c. Fuel consumption is presented in accordance with iso 3046 1 with a tolerance of 0 5 at maximum rating. For every 100 units of energy input 40 units are delivered as output. This excel file will help you to calculate power and electricity production according to load fuel consumption and cost of kwh from diesel or gas generator.

Diesel generators are able to reach an efficiency of about 40 in the engine speed range of idle to about 1 800 rpm. Can be used for permanent and peak power electric plants. This chart approximates the fuel consumption of a natural gas generator based on the size of the generator and the load at which the generator is operating at. Please note that this table is intended to be used as an estimate of how much fuel a generator uses during operation and is not an exact representation due to various factors that can increase or decrease the amount of fuel consumed.

13 31 where the trends in power and thermal efficiency due to hot end damage in the gas generator turbine are illustrated. Example of consumption per kwh consumption of a diesel generator at 75 of nominal power. In the paper a calculation methodology of isentropic efficiency of a compressor and turbine in a gas turbine installation on the basis of polytropic efficiency characteristics is presented.