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All Journal Jurnal Elemen JTAM ROTARY Mu'amalah : Jurnal Hukum Ekonomi Syariah Rekayasa Sistem Energi dan Manufaktur
Musthofa, Imron
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Religion Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Economics, Econometrics & Finance Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering

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ANALISA EFISIENSI LAJU PENDINGINAN REFRIGERAN R-32, R-134A, R410A, DAN LPG PADA SIMULATOR REFRIGERATOR Ivana, Reza Taufiqi; Musthofa, Imron; Putra, Muhammad Rezki Fitri
JTAM ROTARY Vol 5, No 2 (2023): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v5i1.8416

Abstract

Efisiensi sistem refrigeran dengan fungsi sebagai fluida yang menyerap panas dalam sistem sehingga terjadi penurunan suhu  melalui mekanisme evaporasi dan kondensasi. Percobaan ini dilakukan untuk mengetahui refrigeran yang mempunyai dampak laju pendinginan terbaik dengan tingkat temperatur yang berbeda sehingga dapat diamati laju pendinginan dari refrigeran R-134a, R-32, R-410a, dan LPG. Dalam prakteknya menggunakan simulator pendingin sebagai media pembelajaran dalam menerapkan prinsip kerja mesin refrigerasi. Metode penelitian yang dilakukan adalah dengan mengukur temperatur pada waktu 30 detik untuk pengambilan 1 data dan pengambilan data dilakukan selama 300 detik untuk menghasilkan 10 data pada tiap jenis refrigerant pada tekanan 10 Psi. Hasil penelitian menunjukkan refrigerant jenis LPG memiliki tingkat penurunan temperatur paling rendah diantara jenis refrigerant yang lain. Hal ini dikarenakan kinerja LPG dengan ODP sama dengan nol dan nilai GWP rendah. Kesimpulannya sistem pendingin domestik dapat menggunakan refrigeran jenis LPG di untuk penurunan temperatur yang lebih rendah. Refrigerant system efficiency by functioning as a fluid that absorbs heat in the system resulting in a decrease in temperature through evaporation and condensation mechanisms. This experiment was conducted to find out which refrigerant has the best cooling rate effect at different temperature levels so that the cooling rates of R-134a, R-32, R-410a, and LPG refrigerants can be observed. In practice using a cooling simulator as a learning medium in applying the working principles of refrigeration machines. The research method used is to measure the temperature for 30 seconds for 1 data collection and 300 seconds for data collection to produce 10 data for each type of refrigerant at a pressure of 10 Psi. LPG type refrigerant has the lowest temperature drop among other refrigerant types. This is because the performance of LPG with ODP is equal to zero and GWP is low. In conclusion, domestic refrigeration systems can use LPG type refrigerants for lower temperature drops.
Sharia Economic Law Analysis of Mud Bathing in Tiktok Live as Online Begging (Maqashid Syariah Approach) Masyithoh, Luthfiyah Dewi; Amrah, Dwi Putra; Musthofa, Imron
Mu’amalah: Jurnal Hukum Ekonomi Syariah Vol. 3 No. 1 (2024)
Publisher : Institut Agama Islam Negeri Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32332/muamalah.v3i1.7831

Abstract

The phenomenon of live mud bathing content on TikTok has stirred controversy, being perceived as a manifestation of online begging. TikTok’s live streams attract significant viewership, allowing some participants to earn substantial sums in a single session. However, this practice raises ethical concerns and conflicts with the principles of Maqashid Sharia, particularly in upholding human dignity and avoiding harm. This study aims to systematically analyze the issue through the perspectives of Sharia Economic Law and Maqashid Sharia. The research synthesizes relevant references from scholarly books and journals using a literature review methodology. The analysis indicates that live mud bathing content on TikTok primarily results in financial losses rather than benefits for Indonesian viewers. Furthermore, the study proposes recommendations for the Minister of Religious Affairs to ensure that TikTok content in Indonesia adheres to educational standards and local regulations. The novelty of this research lies in its application of Sharia Economic Law and Maqashid Sharia principles to analyze a contemporary digital ethics issue. This study contributes to the discourse on Islamic jurisprudence and digital media ethics by critically evaluating the ethical dimensions of live mud bathing on TikTok. The findings underscore the need for regulatory measures and moral guidelines to mitigate the negative impact of such content, ensuring alignment with societal values and religious principles.
PENGARUH TEMPERATUR WATER COOLANT DAN AIR BIASA TERHADAP KONSUMSI BAHAN BAKAR PADA MESIN BENSIN DAIHATSU TARUNA EFI 1.6 Sukri, Sukri; Syamsuddin, Usman; Musthofa, Imron; Artika, Kurnia Dwi; Merpatih, Merpatih
ELEMEN : JURNAL TEKNIK MESIN Vol. 12 No. 1 (2025)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v12i1.320

Abstract

Vehicles with conventional engines produce heat from combustion in the engine, so that the engine temperature is stable, a radiator water system is needed. The purpose of this study was to determine the effect of water coolant and plain water temperatures on fuel consumption. The method used was to test 3 variations of engine speed, namely 1000, 1500 and 2000 rpm on fuel consumption and engine temperature. The results obtained showed that the average fuel consumption was the same when using water coolant and plain water at an engine speed of 1000 rpm and the water coolant temperature was 3 oC lower than the temperature of plain water. While the average fuel consumption when using water coolant was 17 mL lower than using plain water at engine speeds of 1500 rpm and 2000 rpm, with a temperature drop of 1-3 oC. So, fuel consumption and temperature were lower when using water coolant than when using plain water.
REDESAIN BRAKE COOLING DUCT PADA REM CAKRAM DEPAN SEPEDA MOTOR; ANALISIS PERUBAHAN TEMPERATUR DENGAN METODE COMPUTATIONAL FLUID DYNAMICS (CFD) Sofana , Ilyas; Choirul Anam, Mochammad; Musthofa, Imron
Rekayasa Sistem Energi dan Manufaktur (ReSEM) Vol 2 No 1 (2024): Journal Rekayasa Sistem Energi dan Manufaktur
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/resem.v2i1.21924

Abstract

Brake Cooling Duct is a useful technology to drain air from the front so that the brake caliper & brake disc do not overheat. Another benefit is to keep the engine temperature normal because the it always gets fresh air. This study adds an air duct design or brake cooling duct to cool the brake disc using ANSYS CFD simulation with speeds of 48 Km/h and 98 Km/h to get the temperature of the brake disc when braking without cooling duct and using brake cooling duct, the difference in heat flux value after adding air duct/brake cooling duct, the process of temperature changes that occur when the air flow from the brake cooling duct touches the surface of the brake disc with speeds of 48 Km/h and 96 Km/h. The results obtained brake disc temperature when braking without cooling duct with a maximum temperature value of 137.74 ºC and using brake cooling duct with air inlet speed of 48 Km/h is a maximum of 74.73ºc and 98 Km/h is 73.42 ºc. There is a difference in heat flux value after adding an air duct / brake cooling duct of 33116 W/m2 with a speed of 48 Km/h and 33746 W/m2 with a speed of 96 Km/h. The temperature change that occurs when the air flow from the brake cooling duct touches the surface of the brake disc with a speed of 48 Km/h is 58.97º C, for a speed of 96 Km/h is 60.26º C. Keywords : Brake cooling duct , CFD, heat transfer, simulatioan temperature disk brake
Co-Authors Amrah, Dwi Putra Choirul Anam, Mochammad Ivana, Reza Taufiqi Kurnia Dwi Artika, Kurnia Dwi Masyithoh, Luthfiyah Dewi Merpatih, Merpatih Putra, Muhammad Rezki Fitri Sofana , Ilyas sukri Sukri, sukri Syamsuddin, Usman