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Akhmad Farid
Universitas Widyagama
Aerospace Engineering Computer Science & IT Electrical & Electronics Engineering Engineering Social Sciences Other

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Journal : JOURNAL OF SCIENCE AND APPLIED ENGINEERING

 1 
The Effect of Using a Heat Collection Filter on the Efficiency of Heat Absorption from the Flame of LPG Gas Fuel Akhmad Farid; Gatot Soebiyakto
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 6, No 1 (2023): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v6i1.4729

Abstract

One of the uses of heat from fuel combustion is for the needs of cooking activities. The heat from the combustion reaction heats the surface of the pan, this occurs in the process of heat transfer by convection on the surface of the pan. The rooting reaction of LPG fuel produces a flow of combustion gas with a high flow speed. This will have the consequence that the heat wasted is very large while the absorbed is very small in the process of heating the surface of the pan. To increase heat absorption by the surface of the pan can be done by inhibiting the flow when the fire touches the surface of the pan. This study will examine how the effect of using a heat collection filter on the heat absorption efficiency of the flame of LPG fuel gas and aims to compare the heat absorption efficiency of a fuel gas flame using a heat collection filter with no heat collection filter (conventional). This study uses independent variables in the form of heat absorption without a heat collection filter and with a heat collection filter, as well as variations in LPG gas flow capacity. While the dependent variable observed is the heating time to obtain heat absorption efficiency. The results showed that convection heat absorption using a heat collection filter has a higher efficiency than without using a heat collection filter at various LPG gas flow capacities
Analysis of The Influence of Additional Percentage of Catalyst on The Electrolysis Process on Hydrogen Volume and Flame Profile Mohammad Julio Akbar; Gatot Soebiyakto; Akhmad Farid; Dadang Hermawan
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 6, No 2 (2023): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v6i2.4976

Abstract

Utilization of new and renewable energy is an important point for Indonesia for development, science and technology. On the other hand, the use of fossil fuels is very limited so the alternative fuel solutions are vegetable oil (BBN) and methane gas and others, even in the future the substitute for these fuels will use electricity. The material used in this research is stainless steel. The independent variable tested was the catalyst percentage of NaCl, NaOH and NaHCO3 of 40%. The dependent variables are the volume of hydrogen and flame characteristics. The control variable uses a voltage of 12 volts using water and distilled water as solvents with a volume of 1000 ml. The data collection procedure starts with 12 Volt DC current energy which will produce electrical energy from the cathode pole and anode pole. The electrolysis process will occur causing the catalyst and solution to undergo a chemical process, namely the separation/decomposition of H2O, the catalyst and solution producing hydrogen bubbles which are stored in a tube. The data is then analyzed empirically and using Image-J software or similar to determine the characteristics of the flame. The analysis of the experimental data above can be compared with previous research, namely producing the highest volume of hydrogen at a percentage of 16% of 367 mL and the lowest volume of hydrogen at a percentage of 8% of 198 mL. The highest flame temperature at a percentage of 16% is 54.7 C and the lowest temperature at a percentage of 8% is 31.7C with the highest flame height at a percentage of 16% being 5.72cm and a flame width of 2.98cm and the flame brightness level (Red Green Blue) is highest at a catalyst percentage of 16% at 16 RGB and the flame brightness level (Red Green Blue) is lowest at a percentage of 8% at 2 RGB.
Effect of Internal Reflectors on Daily Performance of Double Slope Solar Stills with Porous Fin Absorber Plate Nova Risdiyanto Ismail; Purbo Suwandono; Dadang Hermawan; Akhmad Farid; Frida Dwi Anggraeni
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 7, No 1 (2024): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v7i1.5981

Abstract

The potential of energy and sea water in Indonesia is relatively high, but it has not been utilized massively to reduce the shortage of fresh water on the islands. Utilization of this potential can use solar stills. Solar still is a relatively cheap technology, easy to obtain materials, environmentally friendly and easy to construct, but this technology has shortcomings in its low productivity. Efforts to increase productivity have been made by many researchers, but there has not been a study of internal reflector integration in a double slope solar still using a porous absorbent plate tested for 23 hours. This study aims to examine the effect of adding an internal reflector on the performance of a double slope solar still. The performance of the double slope solar still is identified by evaluating freshwater productivity and efficiency. This research was conducted experimentally comparing with and without internal reflector. The addition of internal reflectors varies in placement, as for the placement on the north and south sides (RUS), the south side (RS), and the north side (RU). Data collection starts at 07.00 p.m. until 06.00 a.m the next day and is carried out for 5 days. Research comparing the performance of RUS, RS, RU compared to TR and concluded that there is an increase in temperature of fins, seawater and cover glass when using the addition of internal reflector. The increase in temperature has an effect on daily productivity for RUS, RS and RU between 12.88-16.13%, 8.71-12.56%, and 1.70-2.88%, respectively. In addition, the addition of the internal reflector has a positive effect on increasing the daily efficiency for RUS, RS and RU between 12.69-15.93%, 8.60-12.46% and 1.65-2.82%, respectively.
Co-Authors Dadang Hermawan Frida Dwi Anggraeni Gatot Soebiyakto Mohammad Julio Akbar Nova Risdiyanto Ismail Purbo Suwandono