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All Journal International Journal of Electrical and Computer Engineering Jurnal Bahan Alam Terbarukan
Qurrotin Ayunina Maulida Okta Arifianti
Universitas Internasional Semen Indonesia
Computer Science & IT Electrical & Electronics Engineering Materials Science & Nanotechnology

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Prediction of recovery energy from ultimate analysis of waste generation in Depok City, Indonesia Mega Muitiara Sari; Iva Yenis Septiariva; Eva Nur Fauziah; Kuntum Khoiro Ummatin; Qurrotin Ayunina Maulida Okta Arifianti; Niswatun Faria; Jun-Wei Lim; I Wayan Koko Suryawan
International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 1: February 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v13i1.pp1-8

Abstract

Refuse derived fuel (RDF) is an environmentally friendly renewable fuel developed to reduce waste generation. RDF can consist of various kinds of waste such as paper and gardens. One of the critical parameters is the chemical element and calorific value. The purpose of this study was to determine the potential for waste reduction and the relationship of ultimate longevity in RDF to the calorific value. This study's paper and garden waste mixture were P0 (100% paper), P25 (75% paper and 25% garden), P50 (50% paper and 50% garden), P75 (25% paper and 75% garden), and P100 (100% garden). The calorific value of the mixture can reach 3.6-5.2 kWh/kg. Simultaneously the relationship of ultimate elements nitrogen (N), hydrogen (H), oxygen (O), and ash affects the heating value of RDF. Sampling the application in Depok City can reduce waste by 6.67%, with the potential for electrical energy from paper and garden wastes of 358,903.8 kWh and 48,681 kWh, respectively. This shows that this energy waste can supply 0.1% of the total daily electricity demand in Depok City.
Characteristics of Density and Hardness on Caloric Value of Substitution of Biomass and Pet Plastics as Refused Derived Fuel Pellets Pratiwi Claudia Gaina; Mega Mutiara Sari; I Wayan Koko Suryawan; Wisnu Prayogo; Kuntum Khoiro Ummatin; Qurrotin Ayunina Maulida Okta Arifianti; Niswatun Faria
Jurnal Bahan Alam Terbarukan Vol 12, No 1 (2023): June 2023 [Nationally Accredited - Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v12i1.38069

Abstract

The utilization of biomass and polyethylene terephthalate (PET) waste as raw material for refuse-derived fuel (RDF) has been studied. However, physical such as density and hardness are still not widely used. This study aimed to determine the relationship between variations in the composition of PET and physical garden waste density and hardness on the quality of the caloric value of RDF. Density measurements were carried out with the Ultrapyc 1200e instrument. While for hardness, using the Shore D method. The Shore D Hardness test is a standardized test that involves evaluating the amount of depth that may be penetrated by a certain indentation. The lowest density is RDF pellets for food waste at 1,537 kg/m3 and consists of RDF pellets for plastic waste at 2,560 kg/m3. In line with the density, the hardness value increases with the addition of the PET composition. The density and hardness values in the RDF mixture show a simultaneous relationship to the heating value. The highest caloric value achieved is the use of 100% PET as pellets which can reach 5765 kcal/kg.
Co-Authors Eva Nur Fauziah Faria, Niswatun Iva Yenis Septiariva Jun-Wei Lim Mega Muitiara Sari Mega Mutiara Sari Pratiwi Claudia Gaina Suryawan, I Wayan Koko Ummatin, Kuntum Khoiro Wisnu Prayogo