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All Journal Mechanical Engineering for Society and Industry Engineering Science Letter Radial : Jurnal Ilmiah Sains Dan Rekayasa Jurnal Polimesin
Ayu Amanah
Department Of Mechanical Engineering Universitas Bung Karno, Indonesia
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Strategies to achieve controlled auto-ignition (CAI) combustion: A review Ibham Veza; Indra C. Setiawan; La Ode M. Firman; Handi Handi; Ayu Amanah; Mega T. Kurnia; Permana A. Paristiawan; Muhammad Idris; Ahmed Sule; Anthony C. Opia
Mechanical Engineering for Society and Industry Vol. 3 No. 1 (2023)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.7568

Abstract

Conventional gasoline engines suffer from low performance and NOx emissions. Controlled auto-ignition (CAI), sometimes referred to as homogeneous charge compression ignition (HCCI), is a promising concept to solve such problems. CAI has the potential to improve spark ignition (SI) engine fuel economy while at the same time solving the trade-off of NOx-soot emissions found in compression ignition (CI) engines. The CAI engine can reach a fuel economy comparable to that of a conventional diesel engine with ultra-low NOx and negligible soot emissions. However, controlling auto-ignition remains the biggest difficulty that hinders the implementation of CAI as a commercial engine. Research towards a cleaner and more efficient engine is driven by the progressively stringent emission regulation imposed worldwide. Therefore, the CAI was developed to meet the emissions target while maintaining engine performance. CAI works on the principle of lean mixture and auto-ignition. To obtain CAI combustion, the temperatures in the cylinder must be sufficient to initiate auto-ignition. Without the use of a spark plug or injector, the CAI suffers from a direct control mechanism to start the combustion. The most practical approach to controlling the initiation of auto-ignition in CAI is diluting the intake charge by either trapping the residual gas or recirculating the exhaust gas. Both approaches enable the engine to achieve CAI combustion without requiring significant modifications to control the onset of CAI combustion phase.
Renewable Aviation Fuel: Review of Bio-jet Fuel for Aviation Industry Shuaibu Alani Balogun; Ihwan Ghazali; Abdullahi Tanko Mohammed; Dhany Hermansyah; Ayu Amanah; Mega Tri Kurnia
Engineering Science Letter Vol. 1 No. 01 (2022): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (473.155 KB) | DOI: 10.56741/esl.v1i01.59

Abstract

The search for environmentally sound, socially responsible, and economically viable renewable fuel generation methods is a major global concern. A type of aviation fuel called jet fuel or often spelled avtur is intended for use in aeroplanes with turbine (gas) engines. Jet fuel appears colourless. The fuels Jet A and Jet A-1 are the most frequently used ones in commercial aviation sector. Other than Jet B, which is utilised for its enhanced cold-weather operation, there are no other jet fuels that are frequently used in gas-turbine-engine in the aviation industry. Renewable aviation fuel or known as bio-jet fuels represent a sizable sector for the consumption of fossil fuels. The production of bioethanol and biodiesel for piston engine vehicles in internal combustion engines has already shown that biofuel can play a significant role in the development of sustainable renewable aviation jet fuel. Here, we also provide a book review on the potential bio-jet fuel as a renewable aviation jet fuel.
Review of Optical Diagnostic Technique for Diesel Spray Ihwan Ghazali; La Ode Mohammad Firman; Handi; Yusrizal; Ayu Amanah; Mohammed Bashir Abdulrahman
Engineering Science Letter Vol. 1 No. 01 (2022): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (309.542 KB) | DOI: 10.56741/esl.v1i01.60

Abstract

To enhance the fuel efficiency and reduce both NOX and soot emissions in diesel engine, it is essential to understand the mixture formation and the combustion process in the cylinder. The injection parameters such as pressure, mass and multiple approaches as well as the impingement play an important role in mixture formation, combustion process and emissions. Previous works have addressed various optical diagnostic techniques. This review describes those factors mentioned above systematically to clarify the diesel spray in the compression ignition engine. Therefore, a diesel vehicle with better fuel economy and low emission that meets the stringent regulation across the world could be realized.
Analisis Kinerja Turbin Pelton Proto X dengan Varian Ukuran Nosel Menggunakan Aplikasi CFD Yusrizal Yusrizal; Ayu Amanah; Bagas Prasetio
Radial : Jurnal Ilmiah Sains dan Rekayasa Vol. 1 No. 1 (2023): Maret
Publisher : Fakultas Teknik - Universitas Bung Karno

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62024/radial.v1i1.1

Abstract

After get trial of performance of Turbin Pelton Proto X was done with some variations of desain such as percentage of valve opening, nozel distance from center of runner and nozel diameter than get the result of performance. To complete and get perfection need to do simulation and analyse Computational Fluid Dynamic (CFD) uses powerfull engineering software. Based on turbin Pelton Proto X performance result, the velocity of flow is 1.74 m/s. This value will be use for fill parameter conditions when Ansys Fluent is setting up. For this case, it will simulate and analyse of turbin Pelton Proto X with different nozzle diameter and than know the type of flow happen in system of turbin Pelton piping. The result of this CFD analyzing can also give recommendations for development of turbin Pelton Proto X to get higher performance.
A review of solar drying architecture: Direct, indirect and mixed-mode solar dryer Permana Andi Paristiawan; Ihwan Ghazali; Dwi Aryanti; Budiarjono Budiarjono; Ayu Amanah; Muhammad Idris; Dhany Hermansyah; Esam Abu Baker Ali
Jurnal POLIMESIN Vol 20, No 2 (2022): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v20i2.3071

Abstract

Solar energy is available in abundance. It is considered an effective energy source for drying agricultural products. Although it is affordable, open sun drying suffers from both qualitative and quantitative issues caused by unexpected environmental conditions (rain, dust), animals (insects, birds, rodents), and over-or under-drying. Therefore, it is important to introduce a better drying technology to preserve solar energy without deteriorating the quality of the drying product. For that reason, solar dryers have been developed to produce higher drying temperatures and lower relative humidity that will eventually lead to superior drying rates and reduced final moisture contents compared to the conventional open sun drying method. Therefore, not only does the solar dryer meet the requirements of agricultural products, but it also saves energy, time, and money.
Advantages and Challenges of VR in Engineering Education Ayu Amanah; Ihwan Ghazali; Handi; Yusrizal; Iwan Setiono
Engineering Science Letter Vol. 5 No. 02 (2026): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56741/IISTR.esl.002117

Abstract

Virtual reality (VR) technology has the potential to revolutionise engineering education by providing students with immersive and interactive learning experiences not possible with conventional methods. Virtual reality can be used to simulate real-world environments and equipment, teach engineering concepts and principles, and prepare students for industry practices. However, the use of Virtual Reality in engineering education presents challenges, such as the limited availability and expense of VR equipment, the need for technical support and training for faculty and students, and the requirement for the creation and maintenance of Virtual Reality content. This issue was developed based on a narrative review and a literature review. The narrative review was conducted after the author studied and gathered the latest information. To effectively implement VR in engineering education, it is necessary to weigh the advantages and disadvantages of the technology and allocate resources accordingly. The benefit of VR in engineering education is increased accessibility to simulations and hands-on learning experiences, increased student engagement and motivation, the ability to visualize and manipulate 3D objects and concepts in a realistic environment, and the chance to safely test and experiment with equipment and processes. Future use of augmented reality (AR) and mixed reality (MR) technology in engineering education might provide students with even more immersive and interactive learning experiences. The use of Virtual Reality in engineering education has the potential to transform how engineering is taught and learnt by offering students more interesting and interactive learning experiences that better prepare them for success in the field.
Co-Authors Abdullahi Tanko Mohammed Ahmed Sule Anthony C. Opia Bagas Prasetio Budiarjono Budiarjono Dhany Hermansyah Dhany Hermansyah Dwi Aryanti Esam Abu Baker Ali Handi Handi Handi Handi Ibham Veza Ihwan Ghazali Ihwan Ghazali Indra C. Setiawan Iwan Setiono La Ode M. Firman LA ODE MOHAMMAD FIRMAN Mega T. Kurnia Mega Tri Kurnia Mohammed Bashir Abdulrahman Muhammad Idris Muhammad Idris Permana A. Paristiawan Permana Andi Paristiawan Shuaibu Alani Balogun Yusrizal Yusrizal Yusrizal Yusrizal