Selamat Datang di Website Dosen

The world financial crisis would seriously occur in 2009 may even worsen compare to 1998 economic crisis. Nevertheless, advanced countries would manage recover their economic problem short periods compare to poor countries. Contagion effects impact significantly and obstructed poor countries including Indonesia. The world economic growth slowdown followed by high inflation would cause economic uncertainty of Indonesia’s 2009-2010 economic progress. 

Indonesia is initiating a beginning risky of immense competition trading challenge, ASEAN-China Free Trade Agreement has already taken into effect. China has more opportunity with competitive products flooding Indonesia’s market. The frail Indonesia’s market and economic condition would exert its efforts to compete with giant competitive china’s product. Some economical mist possibility conceals Indonesia’s capacity to compete with China. Some obstacles are hampering questionable Indonesia’s economical capacity to compete with China. The economic condition of Indonesia is having many weakneses as in production, monetary and banking, infrastructure, corruptions, and regional safety threat shadowing Indonesia’s uncertain trading success. Some economical and trading competitive policy should be executed by Indonesia’s Government to win trading competition with regional and worldly competitors.  

Abstract. Micro gas turbines can be an alternative power plant that can be utilized in rural areas. The micro gas turbine performance utilizes the LPG combustion reaction to produce the high of velocity and pressure of fluid so that the condition is able to drive the alternator for producing electrical energy. This research was conducted to improve the micro gas turbine performance by changing the turbine blades number. The research method is carried out in two steps, among others calculating the turbine blade design and simulating the performance of micro gas turbines with changes in the turbine blades number by Computational Fluid Dynamics (CFD). Parameters for calculating turbine blade design among others are fuel characteristics, fluid pressure, fluid temperature, and fluid heat energy. These parameters affect the performance of micro gas turbines, which are shown by the turbine rotating speed and turbine power. The results showed that the turbine blades number as many as 18 pieces were able to produce a fluid velocity of 135.4 m/s and a fluid pressure of 3.21 bar. This condition can produce a turbine rotational speed of 331.26 rpm and turbine power of 139.15 kW. Based on the research results can be concluded that increasing the turbine blades number can influence the micro gas turbines performance.