Analysis of Waste Power Plant With Steam-Organic Rankine Cycle (S-ORC) Technology Using R245fa, iso-pentana, and R1234ze [E] Working Fluid : Case Study Bandung City

Abstract

Waste to Energy (WTE) or the use of waste as an energy started being used in many countries as an alternative to fossil fuel for electric energy generation process. In processing as a source of energy, waste incineration is the most common method used at this time. Bandung is a city in Indonesia, which has the large potential availability of waste, with waste production of 1120 tons / day. In this final project study, the authors analyze the use of waste in the city of Bandung as fuel for Waste power plants (PLTSa) with Steam-Organic Rankine Cycle (S-ORC) technology as the work cycle system using the software Ebsilon Professional. The analysis carried out on the use of three types of different organic working fluid for the Organic Rankine Cycle (ORC), the fluids is R245fa, iso-pentane, and R1234ze. Based on the reference, Bandung municipal waste as fuel must have a moisture 18.10% with a caloric value of 6000.75 kJ / kg, in the calculation can produce combustion gas with a temperature of 511.522 °C. From the three types of working fluid selected, will be determined the best organic fluid suitable for use in the S-ORC systems with supply fuel at the above conditions. And analysis will also be carried out on greenhouse gas emissions produced by Waste Power Plant, and comparing the level of emissions with the emissions generated from landfill.