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All Journal PROTON : Jurnal Ilmu-Ilmu Teknik Mesin METAL
Crisanto Putra Mbulu, Bernardus
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Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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THE EFFECT OF COATING TEMPERATURE AND PARTICLE SIZE ON THE BURNING TIME OF KEMPI SHELL BRIQUETTES Vianus Ndopo Role, Narsisius; Murdiyanto, Danang; Crisanto Putra Mbulu, Bernardus
Mechanical, Energy and Material (METAL) Vol. 2 No. 1 (2024): Juni: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v2i1.96

Abstract

The current fuel is still sourced from fossil fuels, namely oil, coal and The current fuel is still sourced from fossil fuels, namely oil, coal and gas, which have many impacts on the environment. As an agricultural country located in the tropics, Indonesia is rich in biomass energy sources. In this research, the use of candlenut shells will be used or processed into alternative fuel, namely briquettes, with the aim of determining the value of combustion time and temperature produced through variations in composition and mesh size. The results of the research show that the effect of the burning temperature has an impact on the burning time of the briquettes and the resulting temperature, where the best burning time and temperature values ​​of the briquettes are produced by a burning temperature of 400°C with a grain size of 100 mesh, namely 177 minutes with an average burning temperature briquettes 193.9°C.
COMPARISON OF PARTICLES SIZE AND PRESSURE OF COCONUT SHELL CHARCOAL BRICKETS ON COMBUSTION TIME AND TEMPERATURE Mali, Alfin; Crisanto Putra Mbulu, Bernardus; Tugur Redationo, Nereus
Mechanical, Energy and Material (METAL) Vol. 2 No. 2 (2024): Desember: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v2i2.97

Abstract

Briquettes are a type of alternative energy whose raw material source comes from agricultural waste such as coconut shells. Coconut shells are converted into charcoal which has a higher calorific value through the pyrolysis process. The aim of this research is to determine the effect of comparing particle size and printing pressure on the length of burning time and burning temperature, so as to obtain a briquette composition that is durable and produces high temperatures. In this research, the raw material used was shell waste with a drying process of 400°C and the particle size variations used were mesh 30, 150 and 250 mixed with 12 grams of starch adhesive. The briquette molding process uses 3 kg and 5 kg pressure, which are then dried using an oven at a temperature of 750°C for 3 hours. Tests were carried out on burning time, burning temperature, water content and ash content. From the research results, it was found that for the highest temperature, briquettes with a particle size of 250 mesh were produced with a pressure of 5 kg at 312°C, and the flame duration of the briquettes was 240 minutes.
ANALYSIS OF PELTON WATER TURBINE DESIGN RESULTS THROUGH VALVE VARIATIONS AND COMPARISON OF NUMBER OF BLADES Andi Priyanto, Oktavianus; Tugur Redationo , Nereus; Crisanto Putra Mbulu, Bernardus
Mechanical, Energy and Material (METAL) Vol. 2 No. 2 (2024): Desember: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v2i2.101

Abstract

The Pelton turbine is an extension of the impulse turbine, the Pelton turbine operated with high pressure and changes in momentum received by the blades very large. In this research, the researcher wanted to analyze the effect of the number of blades against the momentum force that produces the turbine shaft rotation and generate electrical energy. The research used a mini Pelton type of water turbine, using blades with the number of blades 6, 12, and 18 blades. By using the valve opening ranging from 60o-720o, using an initial load of 150gr, arm length 15cm, then look for the unit conversion of discharge pressure (Pd), turbine head (HT), capacity water (Q), Water Horse Power (WHP), Brake Hourse Power (BHP), and efficiency turbine. The number of blades that are more effective for use in mini-type water turbines Pelton valve opening variations are 18 blades, because of the efficiency and force values greater momentum so that the rotation of the turbine shaft produces a blade 18 with the results of the calculation of the 18 blades obtained a manometer of 215.74 N/m2 turbine head 21.99 m, highest water capacity 0.012 m3/s, highest WHP 26,404 Watts, BHP the highest is 19,765 Watts, and the highest turbine efficiency is 75%.
THE EFFECT OF PRESSURE VARIATIONS (3 KG, 4KG, 5 KG, 5.5 KG) AND MESH (30, 100) ON THE HARDNESS AND COMBUSTION VALUE OF CANDLECRON SHELL BRIQUETTE De Jesus Moriera, Paulo; Tugur Redationo, Nereus; Crisanto Putra Mbulu, Bernardus
Mechanical, Energy and Material (METAL) Vol. 3 No. 1 (2025): Juni: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v3i1.131

Abstract

Through this research there are two variables observed, namely the effect of variations in briquette charcoal pressure and specific heat value on the composition of carbonisation of hazelnut shell charcoal with tapioca adhesive on specific heat value. The initial process of research in the form of making charcoal on hazelnut shell briquettes, hazelnut shells are carbonised at 500 °, sieved with mesh 30 and 100 sieves, given a compressive load of 3 kg, 4 kg, 5 kg and 5.5 kg, the adhesive on hazelnut shell briquettes is starch and drying is carried out with a drying oven for 3 hours at a temperature of 80 °. The purpose of this study was to determine the effect of variations in pressure and particle size on the quality of hazelnut shell briquettes when viewed from the combustion rate and calorific value. The methodology used in the research is by using hazelnut shell briquette experiments, hazelnut shell briquette testing includes testing through hardness and briquette calorimeter bomb value. Through the research, it was found that the highest calorific value was in the 4 kg pressure specimen on mesh 30, namely 9221.09 cal/gram while the lowest combustion rate was produced by the hazelnut shell briquette specimen with a pressure of 5 kg and 5.5 kg, which was 4076.17 g/min. Giving different compressive loads and mesh sieves can provide advantages to briquettes including increasing specific calorific value, reducing water content and slowing the combustion rate
Co-Authors Andi Priyanto, Oktavianus De Jesus Moriera, Paulo Mali, Alfin Murdiyanto, Danang Regita Bellatrix , Angelica Tugur Redationo , Nereus Tugur Redationo, Nereus Vianus Ndopo Role, Narsisius