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All Journal IPTEK Journal of Proceedings Series Rekayasa Mesin Sinergi VANOS Journal of Mechanical Engineering Education Turbo : Jurnal Program Studi Teknik Mesin Journal of Research and Technology MEKANIKA - JURNAL TEKNIK MESIN JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Prosiding Seminar Nasional Sains dan Teknologi Terapan Scientific Journal of Mechanical Engineering Kinematika Mechanical Engineering for Society and Industry Journal of Mechanical Engineering, Science, and Innovation Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul) Prosiding Seminar Nasional Teknologi Industri Berkelanjutan Journal of Science and Social Development
Zain Lillahulhaq
Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Adhi Tama Surabaya
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Improving poultry system in close house cage through advanced HVAC design: A Review of evaporative cooling pads and energy efficiency in broiler cages Lillahulhaq, Zain; Widodo, Wawan Aries; Sutardi, Sutardi; Hakim, Luthfi; Nugroho, Anton
Mechanical Engineering for Society and Industry Vol 4 No 3 (2024): Special Issue on Technology Update 2024
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12689

Abstract

Improving the quality and quantity of livestock production can be achieved by creating a comfortable and safe environment for animals. The use of closed-house pens is one of the methods employed to control temperature, humidity, airflow, and the cleanliness of the living space for animals. Close-house pens are equipped with Heating, Ventilation, and Air Conditioning (HVAC), including the combination of an Evaporative Cooling Pad (ECP) and an exhaust fan. The characteristics of the shape and material composition of the ECP components influence pressure drop and the flow pattern entering the room. This research focuses on reviewing papers related to the development of numerical simulation studies of close-house pens and ECP. The design of numerical simulations and the selection of boundary conditions enhance the precision and error level of predicting fluid flow distribution in closed-house cages. In addition to numerical simulations, the application of energy management calculations provides recommendations regarding the combination of HVAC design and environmental control parameters that need to be considered.
Analysis of the Effect Variation of Sides Racing Bike Helmets on Flow Characteristics Using CFD Syamsuri, Syamsuri; Lillahulhaq, Zain; Mufarrichi, Muhammad
TURBO [Tulisan Riset Berbasis Online] Vol 13, No 1 (2024): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v13i1.2699

Abstract

The selection of materials and aerodynamic design forms needs to be considered in designing a comfortable helmet. The emergence of the drag force on the helmet causes a compressive force, which causes the rider discomfort when driving at high speeds. This research was conducted on 4 variations of helmet models consisting of 1 time-trial type helmet as a reference and 3 other helmets which were developed from the basic model. This simulation was conducted in a 2D helmet model at Re 7.14 x 104, 1.00 x 105, and 1.16 x 105. In this study, Turbulence Intensity was varied as 0.1%, 0.2%, and 1%. The results are shown through the drag coefficient's value and visualization of streamlined flow. The results showed that the 2D simulation on the helmet produced a lower error by using Set Up Turbulence Intensity 0.1%. The emergence of the Oscillating Karman vortex in large size indicates the higher the drag force that occurs on the helmet. In this study, helmet type 3, with a trailing edge and has a smooth curve, has the lowest drag force at Re 1.16 x 105 with a drag coefficient value of around 0.38.
Pemanfaatan Tempurung Kelapa sebagai Katalis pada Proses Konversi Minyak Curah Menjadi Biodiesel Yustia Wulandari Mirzayanti; Erlinda Ningsih; Zain Lillahulhaq; Zuhdi Ma’sum; Chevy Renova; Yasin Wijaya
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.351

Abstract

Vegetable oil is one of the alternative sources of raw material for fuel oil to produce biodiesel. The conversion reaction process requires the help of a catalyst to break down triglycerides into methyl esters. Therefore, this study aims to determine the performance of catalysts made from coconut shells to convert bulk oil into biodiesel. The catalyst performance is focused on biodiesel's yield parameters through the influence factor of catalyst weight, molar ratio, and %FAME. This research was conducted in three stages, namely (1) catalyst preparation, (2) application of catalyst performance through the conversion process of bulk oil into biodiesel, (3) washing of biodiesel. The first stage was catalyst preparation carried out by utilizing a coconut shell, which was first made into charcoal, then activated using H3PO4 then sulfonated with H2SO4. The second stage was the conversion process of bulk oil into biodiesel using coconut shell catalysts through a transesterification process using variations in the catalyst's weight to bulk oil (0.5; 1; 1.5; 2; and 2.5% wt/wt) and bulk oil molar:methanol ratio (1: 3; 1: 6; and 1: 9). The third stage was the process of washing biodiesel using HCl. Based on this study's results, the best catalyst weight was 2% wt/wt with a molar ratio of 1: 9 resulting in the highest yield of 89% and the FAME of 80.36%.
Co-Authors Abdul Ghofur Afira Ainur Rosidah Afrizal Amir Afrizal Amir Agung Cahyo Legowo Ahmad Anas Arifin Akhfaruhal Akhfaruhal Ali Khomsah Amirullah, Irsyad Anindya Rachma Dwicahyani Anindya Rachma Dwicahyani Anton Nugroho Anugrah Fardhan Rasyidi Anugrah Fardhan Rasyidi Ardi Noerpamoengkas Bagus Putra Mahardika Bambang Setyono, Bambang Chevy Renova Chevy Renova Desmas Arifianto Patriawan Dian Yanuarita Purwaningsih Doan Besthian Saragih Donny Albari Donny Albari Dwi Khusna Dwi Kusuma Edi Purnomo Erlinda Ningsih Erlinda Ningsih, Erlinda Fahreza Dwi Sandy Frizka Vietanti Gatot Setyono Gilang Satrio Bawono Hery Irawan, Hery Iftika Philo Wardani Ilmi, Syamsuri Indra Adi Gunawan Luthfi Hakim M Arif Masfufiah, Ilmiatul Maulana, Hasan Syafik Michael Azzura Akbar Miftahul Ulum Moch Syaiful Huda Moch Syaiful Huda Mufarrichi, Muhammad Muhammad Abrory Naili Saidatin Nasyith Hananur Rohiem Novian Patria Uman Putra Rizal Mahmud Rizal Mahmud Roni Akustik Kurniawan Safiullah Safiullah Sasongko, Sukendro Broto Setyowati, Vuri Ayu Suheni Sutardi Sutardi Syamsuri Syamsuri Syamsuri Syamsuri Syamsuri Syamsuri Vietanti, Frizka Vivien Suphandani Djanali Vuri Ayu Setyowati Wardani, Iftika Philo Wawan Aries Widodo Yasin Wijaya Yasin Wijaya Yohanes Charles Narding Yusron, M Yustia Wulandari Mirzayanti Yustia Wulandari Mirzayanti Zuhdi Ma’sum Zuhdi Ma’sum