KAJIAN AWAL SISTEM PEMBANGKIT LISTRIK DENGAN BAHAN BAKAR SAMPAH KOTA SKALA 500 TON/HARI

• Main Author: ISWADI, RURI
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/37492
• Institution: Institut Teknologi Bandung

The first design of municipal solid waste power generating system has been finished. This system is named PLTSa (Pembangkit Listrik Tenaga Sampah Kota). It has capacity 500 ton a day. The generator produces almost 6,955 MW electric energy with almost 19,64 % system efficiency. The operation condition and the system dimension are obtained from the computer simulation by using Cycle-Tempo® dan FireCad® programs. Cycle-Tempo is used for obtaining the thermodynamic equilibrium, mass and energy in PLTSa, while FireCad program is used for obtaining the main boiler dimension. Designing process is preceded by fixing the expected vapor condition that is temperature, pressure and vapor mass flow rate for first iteration, and then choosing heat recovery in boiler, type of grate, furnace, superheater and boiler bank. Then, process is continued by inserting waste characteristic in ultimate analysis and calor value into form in FireCad. The calor value used as input of FireCad is 1200 kkal/kg with assumption 50% allowed moisture of waste. The designing process is continued by doing repeated iteration to expected vapor condition and boiler dimension of previous iteration. The iteration process will be stopped if the temperature of boiler is 850 °C and the amount of waste is 500 ton a day. The result of FireCad simulation like vapor condition from boiler become input for whole generating system simulation in CycleTempo. This simulation occurs simultaneously until the boiler temperature, the amount of minimum burner air, and the amount of waste are convergent to the fixed limit. Optimum configuration has been invented with vapor product which is needed by boiler in 399,27°C dan 40 bar condition. The first finance analysis for this electric generator project has been done. With IRR 27,85% and 6,49 years payback period can be concluded that this project is proper