Teknomekanik
Vol 6 No 1 (2023): Regular Issue

Process design and simulation study of an electricity generation plant utilizing low-grade wasted thermal energy using aspen Hysys software

Janter Pangaduan Simanjuntak (Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Medan, Medan 20221, INDONESIA)
Binsar Maruli Tua Pakpahan (Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Medan, Medan 20221, INDONESIA)
Purwantono Purwantono (Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang, Padang 25131, INDONESIA)
Khaled Ali Al-attab (School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal 14300, Penang, MALAYSIA)



Article Info

Publish Date
30 Jun 2023

Abstract

An analysis of the operational parameters of a small-scale electrical generation facility that uses the thermal energy contained in the flue gases from rubbish waste incineration is the goal of this study. To assess this system, the organic Rankine cycle (ORC) thermodynamic system was used. Since the organic fluid has a lower boiling point than water and can be evaporated with less thermal energy, it was chosen as a heat transfer medium instead of water. Aspen Hysys was utilized as a simulation tool, while R11 was used as the working fluid. To maximize the amount of available electrical output power, the plant's operational temperature, working fluid flow rate, and pressure are all maximized. According to the simulation's findings, flue gas may generate electric power between the ranges of 3.12 – 29.71 kW at working pressures between 2.5 and 3.5 bar and working fluid flow rates between 3.600 and 7200 kg/h when the temperature is between 50 and 95 oC. The system reaches a thermal efficiency of about 8.30 at 350 kPa of working fluid pressure.

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Journal Info

Abbrev

teknomekanik

Publisher

Subject

Mechanical Engineering

Description

Teknomekanik is an international journal that publishes peer-reviewed research in engineering fields (miscellaneous) to the world community. Paper written collaboratively by researchers from various countries is encouraged. It aims to promote academic exchange and increase collaboration among ...