Enclosure design of train of eating and generator on production PT. INKA Madiun using computational fluid dynamics

Trains are a means of transportation is much in demand by the community because it is considered effective and efficient. The railway has several sections, one of which is on the railway carriage and the power plant. In this study, train carriage and power plant with the loading of one railway carriage, designed to be quieter, with reference not exceeding the standard limit based on Kepmen LH Number 48 of 1996. Design used by altering the enclosure insulation in the generator chamber. In the existing condition, the train carriage has not met the standard at station noise. This study obtained the noise insulation results from enclosure design on railway carriages and generators made with various variations, so obtained enclosure with 25% grill ratio and ventilation on the floor, that is with the value of sound pressure level at a distance of 6 meters of 65.77 and 65.56 dBA.