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Zurohaina
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Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Materials Science & Nanotechnology

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PENGARUH JUMLAH KATALIS ALUMINA SILIKA PADA PROSES PEMBUATAN BAHAN BAKAR CAIR LIMBAH PLASTIK HDPE DAN LDPE Arjuansyah, Meji; Aditya Saputra, Marwan; Zurohaina; Ridwan, KA; Zikri, Ahmad
KINETIKA Vol. 12 No. 3 (2021): KINETIKA 01112021
Publisher : Politeknik Negeri Sriwijaya

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As the world's population increases, consumption of plastic goods is increasing. Plastic waste, both from industry and households has increased sharply. The increase in the amount of plastic is due to the fact that plastic has many advantages compared to other materials. The increase in the amount of plastic waste will have a negative impact on the environment so that there is a need for handling to reduce the amount of plastic waste. Therefore, there is a need for handling to reduce the amount of plastic waste. One alternative to reducing the amount of plastic waste which is more profitable is converting plastic waste into liquid fuel. This can be done because basically plastic comes from petroleum, so it just needs to be returned to its original shape. In addition, plastic also has a high calorific value, equivalent to fossil fuels such as gasoline and diesel. This study conducted the processing of HDPE and LDPE plastic waste into liquid fuel using an Alumina Silica catalyst and the effect of the amount of catalyst based on raw materials at 480oC and 400oC was carried out. From the research results, it is known that the optimum catalyst obtained from research on HDPE raw materials is 15% catalyst with oil volume of 794.1 ml, density 787.19 kg/m3, flash point 29°C, viscosity 2.8101 mm2/s and % yield 29.20%. Meanwhile, from research on LDPE raw materials, namely 5% catalyst with oil volume of 240.64 ml, density 767.8 kg / m3, flash point 29°C, viscosity of 2.9651 mm2/s and % yield 12,03%
PENGARUH RASIO UDARA BAHAN BAKAR LPG TERHADAP FLAME TEMPERATURE DAN EFISIENSI TERMAL CROSS SECTION WATER TUBE BOILER Apriani, Marsa; Susanti, Amalia; Has, Cresa Moneta; Tahdid; Manggala, Agus; Erlinawati; Zurohaina
KINETIKA Vol. 12 No. 3 (2021): KINETIKA 01112021
Publisher : Politeknik Negeri Sriwijaya

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Boiler is one of energy conversion machines. The boiler function is converting water into steam by utilizing the heat from the chemical reaction between fuel and oxygen in the air which is commonly known as the combustion reaction. The research purposes are to determine the effect of the LPG fuel air ratio on the flame temperature and thermal efficiency of cross section water tube boiler, and to determine the optimum fuel air ratio which produces the highest flame temperature and thermal efficiency. The air fuel ratio that use in this research are 29.16; 29.44; 29.71; 29.99; and 30,26. Based on the research, it is known that the fuel air ratio affects both of flame temperature and thermal efficiency of the cross section water tube boiler. On the range of air fuel ration 29.16 to 30.26, it is known that the greater the fuel air ratio, the higher the flame temperature and thermal efficiency The optimum air fuel ratio in this research is 29.99 which produces 680oC flame temperature and 58.85% on steady state saturated steam production, 7010C flame temperature and 59.71% thermal efficiency on non steady state saturated steam production, and 7040C flame temperature and 59.32% on superheated steam production.
UJI KINERJA PROTOTYPE KOMPOR BIOBRIKET DITINJAU DARI VARIASI KETINGGIAN ALAS RUANG BAKAR DAN PEMANFAATAN PANAS BUANGAN MENGGUNAKAN THERMOELECTRIC GENERATOR Arif Zakiatul Fikri; Anisa Rahmawati; Agus Manggala; Zurohaina; Jaksen
KINETIKA Vol. 13 No. 03 (2022): KINETIKA 01112022
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Biobriquette stove is one type of stove that can be developed as a renewable energy source. This biobriquette stove is also one of the best solutions in improving the briquette combustion system so far which is still less desirable and the treatment is still traditional. The prototype of this biobriquette stove was carried out to test the performance using the hot start water boiling test (WBT) method. In this study, primary air is supplied by a blower with a speed of 6.8 m/s, and the use of heat from the combustion chamber which can be converted into electrical energy by a thermoelectric generator component with the largest voltage obtained is 10 Volts. Performance testing of this biobriquette stove prototype refers to SNI 7926:2013, this prototype is included in the medium size stove category because it has a maximum capacity of 3 kg with an operating time of 2 ours 58 minutes. The best thermal efficiency obtained is 28,27% with a specific fuel consumption (Sc) of 0.61 kg/h, the greater the efficiency value, the smaller the fuel consumption, and for the best combustion efficiency, the value is 0.9927.
Co-Authors Aditya Saputra, Marwan Agus Manggala Anisa Rahmawati Apriani, Marsa Arif Zakiatul Fikri Arjuansyah, Meji Erlinawati Has, Cresa Moneta Jaksen Manggala, Agus Ridwan, KA Susanti, Amalia Tahdid Zikri, Ahmad