ABSTRAK--Penelitian

The garbage dumping in Tegal Regency has reached 989.8 m3/day and increasing every year. The percentage of waste in Murareja landfill is dominated by plastic waste which is 40.15%. The plastic waste will be processed by pyrolysis by utilizing Refuse Derived Fuel (RDF) as its fuel. The percentage of garbage in Murareja TPA that can be used as RDF is quite high, which is 28.7%, consisting of 15.35% paper waste, 2.35% rubber / leather waste, 2% garbage cloth, 1% wood waste, and 8% plastic waste. The waste is considered potentially to be produced into RDF. The production of RDF aims to convert the combustible waste fraction from 4K1P waste (Paper, Wood, Fabrics, Rubber / Leather and Plastics) to be fueled. Therefore it is important to know how much potential of 4K1P waste to be processed into RDF, and how optimal calorific value of RDF is to be used as fuel of pyrolysis incinerator on Waste Power Generation at Murareja TPA, Tegal regency. Based on the result of the research that has been done, the theoretical value of the theoretical value of 4K1P RDF briquette is 3677.0945 - 5507.114 [kcal / kg]. From the actual data obtained with laboratory testing the value of RDF beverage caloric waste 4K1P RDF amounted to 3973.45 [kCal / kg]. The optimal calorific value of RDF required as a pyrolysis incinerator fuel is 3248.809 [kcal / kg]. Based on the results of laboratory tests, the percentage of moisture content, ash content, volatile content and carbon content are 4.68%, 11.64%, 7.81% and 75.87% respectively.

Saat ini, pemanfaatan pesawat udara dalam moda transportasi semakin meluas, tidak hanya mengambil peran sebagai media untuk transportasi penumpang, tetapi juga digunakan sebagai media untuk melakukan uji kalibrasi terhadap navigasi pendukung keselamatan penerbangan. Uji Kalibrasi di lakukan dengan membawa alat uji di dalam pesawat yang digunakan dan melakukan prosedur untuk mengkalibrasi navigasi penerbangan termasuk manuver yang dibutuhkan. Pemanfaatan pesawat yang biasanya di gunakan untuk melakukan ferry dengan fungsi kembali ke base untuk melakukan perawatan pesawat atau membawa penumpang dari satu daerah ke daerah lain. Pesawat dengan tipe dan interval waktu penggunaan yang sama akan memiliki perbedaan konsumsi bahan bakar apabila digunakan dalam jenis pemanfaatan terbang yang berbeda. Hal ini dapat dilihat dengan melakukan uji ANOVA dan t-test menggunakan SPSS. Saat dilakukan uji dengan SPSS didapatkan hasil uji t-test menunjukkan nilai Signifikan atau Sig. sebesar 0,002 sehingga hipotesa adanya perbedaan konsumsi bahan bakar saat melakukan ferry dan kalibrasi dapat di terima. Sehingga perlu di lakukan penjadwalan terbang yang baik agar setiap pesawat dapat memasuki masa perawatan rutin yang sesuai dengan waktu yang ditentukan.

The steam turbine is one of the main components in the Geothermal Power Plant which acts as the prime mover is used to convert heat energy in steam into rotation energy. At PLTP X, steam is used to drive the turbine is in saturation conditions. The principle of the steam turbine is dry steam plant cycle. From July to August, it was known that there have been several decreases in generating power at Unit 2 at PLTP X. The efforts that can be done to overcome this problem is by turbine washing. This study aims to compare the performance of steam turbines based on thermal efficiency, isentropic efficiency and steam turbine generator power before and after turbine washing from the calculation results based on CEI/IEC 953-1, CEI/IEC 60953-3 and ASME PTC 6-2004 standards using the actual steam system operating parameter data collection, interviews and analysis. So that it gets an average increase in isentropic efficiency of 0,0564 %, thermal efficiency of 0,0082 %, the actual power generation of steam turbine is 162,72 kW and the largest power generation reaches 54.500 kW after the turbine washing steam rate of 7,5963 kg/kWh and the turbine heat rate of 3.607,3453 kJ/kWh.

Compressor is one of the energy conversion machines that has a function to compress or compress the working fluid, in this case compressible fluid. To maintain the reliability of components carried out maintenance including periodic maintenance and maintenance when there is damage, in this final task obtained data on the 71st weekly maintenance obtained compressor is not able to supply air optimally. Output power obtained output power of 61,475 kW, while in data processing obtained the largest output power obtained by 85.6 kW large output power based on high current input due to excess load on the motor. The amount of output power that exceeds the maximum output power results in a fracture in the piston rod. And get a filter that has been dirty on the compressor so that the air can not be compressed to the maximum.