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All Journal FLYWHEEL : Jurnal Teknik Mesin Untirta Jurnal Teknik Mesin Civil Engineering For Community Development Trends in Mechanical Engineering Research
Kurnia Nugraha
Universitas Sultan Ageng Tirtayasa
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Journal : Trends in Mechanical Engineering Research

 1 
ANALYSIS OF THE EFFECT OF COAL QUALITY ON STEAM PRESSURE PRODUCED BY BOILER ENGINES IN PT. SINAR MEADOW INTERNATIONAL INDONESIA Marvel, Marchello; Lusiani, Rina; Ula, Shofiatul; Jannah, Miftahul; Nugraha, Kurnia; Bagaskara, Rafly Priyantama Ramadhan; Mursyidah, Himmatul; Abdullah, Syarif
Trends in Mechanical Engineering Research Vol 2, No 1 (2024): June
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v2i1.26163

Abstract

In general, coal fossil fuel reserves are the main load in the industry, especially in the use of boiler engines. Coal comprises carbon, hydrogen, oxygen, nitrogen, sulfur, and mineral compounds. A boiler engine is a machine that produces high-pressure water vapor by heating water through fuels such as coal. The water vapor can then be used for various purposes, such as heating oil in the oil manufacturing industry, especially PT. Meadow Rays. Steam is an effective and inexpensive medium for transferring heat to a process. Coal plays an important role in the operation of boiler engines because coal is one of the fuels that is often used in the heating process. The quality of the coal can affect the quality of the steam produced by the boiler engine. Suitable coal shape for boilers at PT. Meadow rays are generally solid or solid, such as chunks, fractional coal, or bituminous coal that has a large coal size that has a mesh size between 3.2 mm to 6.3 mm or about 1/8 to 1/4 inch. This is because the solid, dense form of coal has a higher density and lower porosity, so it can retain heat better and provide a smaller surface for the combustion process. Coal users must be provided to PT. Sinar Meadow must have a minimum calorie of 6300 kcal/kg, for the efficiency and safety of the boiler at PT. Meadow Rays. Therefore, paying attention to the coal quality used in boiler engines is important to produce high-quality and efficient steam.
CONCEPT OF DIGITALIZATION OF SAILING LINE IN CRITICAL AREA THROUGH FISHING BOAT GENERATED WAVE IDENTIFICATION Suprayogi, Dedy Triawan; Satria, Dhimas; Haryadi, Haryadi; Nugraha, Kurnia; Abdullah, Syarif; Erwin, Erwin
Trends in Mechanical Engineering Research Vol 2, No 2 (2024): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v2i2.30949

Abstract

This paper explores the concept of digitalization in critical sailing lines to manage ship-generated waves (SGW), with a focus on fishing boats. Indonesia, as a maritime nation, faces challenges due to the environmental impact of SGW, such as riverbank erosion, habitat disruption, and damage to marine infrastructure. The proposed digital framework integrates real-time environmental data, including tidal conditions, river currents, and water depth, with vessel parameters like speed and GPS tracking. This system aims to provide accessible information through websites and smartphone applications, enabling safer and more efficient navigation. The results highlight the importance of digitalization in enhancing maritime safety, reducing environmental damage, and improving operational efficiency for fishermen and port operators. 
PRELIMINARY STUDY ON THE USE OF IPOMOEA CARNEA POWDER AS A REINFORCEMENT MATERIAL IN THE PRODUCTION OF POLYMER ROOF TILES Kustyo, Nicko Dharma; Sunardi, Sunardi; Fawaid, Moh.; Susilo, Sidik; Setiawan, Ipick; Yusuf, Yusvardi; Sudrajad, Agung; Listijorini, Erny; Nugraha, Kurnia; Wiyono, Slamet; Haryadi, Haryadi
Trends in Mechanical Engineering Research Vol 3, No 01 (2025): June
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v3i01.34510

Abstract

Roof tiles play a vital role in the construction industry by providing protection from the sun's heat and rain. The quality of roof tiles largely depends on the materials used and the manufacturing process, as these factors significantly affect the tiles' mechanical properties. Kangkung pagar (Ipomoea carnea) is one type of alternative natural fiber material that can be utilized in the creation of composite materials. This study aims to explore the potential of Ipomoea carnea powder as an alternative material for producing polymer roof tiles, as well as to examine how variations in the composition of powder and sand influence the mechanical properties of these tiles. The method for producing roof tiles is based on powder metallurgy. The composition of the powder and sand used varies in the following ratios: 10% powder to 50% sand, 20% powder to 40% sand, and 30% powder to 30% sand. Additionally, a fixed composition of 30% polyester resin and 10% asphalt is used. The initial process involves mixing the materials according to these predetermined ratios. The resulting mixture is then molded and compacted under a pressure of 200 kg/cm². Characterization of the mechanical properties includes proximate analysis, calculation of porosity and density, flexural strength testing, and hardness testing.The study's results indicated that the properties of polymer roof tiles are significantly influenced by the composition of the powder and sand used during their manufacture. The findings revealed a porosity value of 0.209%, a density of 0.994%, a flexural strength of 2.270 MPa, and an optimum hardness of 19.1 BHN. The addition of 10% powder increased the hardness value by only 0.4% while decreasing the flexural strength by 0.5%. Overall, the use of Ipomoea Carnea powder was not effective in enhancing the mechanical properties of the polymer roof tiles, as both the flexural strength and hardness values remained below those of commercially available polymer roof tiles.
Co-Authors Agung Sudrajad Ainun Najib Alhamidi, A. Ali Bagaskara, Rafly Priyantama Ramadhan Dhimas Satria Erny Listijorini Erwin Erwin, Erwin Erwin, Erwin Fendi Ferdiansyah Frengki Hardian Greida Frista Hamdan Akbar Notonegoro Haryadi, Haryadi Hasanudin Gufron Fachrudin Hendra Hendra Hendra, Hendra Hernadewita, Hernadewita Himmatul Mursyidah Jannah, Miftahul Kustyo, Nicko Dharma Listijorini, Erny Lusiani, Rina Marvel, Marchello Moh Fawaid Notonegoro, Hamdan Akbar Rina Lusiani Setiawan, Ipick Setiawan, Ipick Sidik Susilo Slamet Wiyono Sudrajad, Agung Sunardi, Sunardi Suprayogi, Dedy Triawan Susilo, Sidik Syahril Al Qirom Syarif Abdullah Ula, Shofiatul Wiyono, Slamet Yusuf, Yusvardi Yusvardi Yusuf