Ecology, Environment and Conservation Paper

Vol 24, Issue 4 2018; Page No.(1529-1533)

PRELIMINARY STUDY ON SINGLE STAGE MICRO GAS TURBINE INTEGRATED WITH SOUTH SUMATERA INDONESIA LOW RANK COAL GASIFICATION

Fajri Vidian, Hasan Basri, Helmy Alian, Elian Zhafran and Thorik Aziad

Abstract

The decrease of the worldÂ’s petroleum resources encourages the use of an alternative energy such as coal gasification. The low rank coal is the most potential resources in South Sumatra, Indonesia. The utilization of low rank coal from South Sumatra (MT-46) using gasification to drive the single stage micro gas turbine is more preferable. The objective of this study was to investigate the effect of air-fuel ratio (fixed fuel mass flow) on turbine rotation, turbine inlet temperature and turbine power. The gasification was conducted using an atmospheric downdraft gasifier with equivalent ratio of 0.25. The results showed an increasing of air-fuel ratio (1.6 to 3) of gas burner tended to increase the turbine rotation from 22000 rpm to 25000 rpm and turbine power from 0.75 to 1.03 kW. On the other hand, the increase of air-fuel ratio tended to decrease the turbine inlet temperature from 577 oC to 402 oC.

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