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Empowering society and culinary MSMEs for sustainable development goals initiatives in West Java Amanah, Nadia; Sena, Boni; Suhendra, Bobie; Yatim, Ardiansyah; Zaki, Sheikh Ahmad
Journal of Sustainable Tourism and Entrepreneurship Vol. 5 No. 3 (2024): May
Publisher : Goodwood Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/joste.v5i3.1756

Purpose: This study aimed to explore the impact of empowering society and culinary MSMEs on Sustainable Development Goals (SDGs) in West Java, focusing on Sindangmukti Village, Karawang Regency. While prior research has often used a top-down approach, neglecting direct societal impact, this study takes a bottom-up perspective, aligning with implicit SDG principles observed in community services. Research Methodology: The study employed online questionnaires with 505 households in West Java to evaluate water consumption, waste generation, and energy usage patterns. Specific investigations in Sindangmukti Village have measured community service effectiveness regarding SDGs. Results: The study found that Only 19.1% of the participants set AC temperatures within the recommended ranges. Additionally, initiatives to promote a sustainable city strategy and establish energy-efficient culinary MSMEs in Sindangmukti Village resulted in a 29% increase in knowledge among 70 participants and generated $36.71 income from bitter melon chip production within two months. Limitations: However, the study focused solely on Sindangmukti Village, neglecting the diverse cultural and problem landscapes of other villages in the Karawang Regency. Contributions: The findings of this study can inform future efforts to enhance energy, water, and waste efficiency in residential buildings in West Java, thereby fostering awareness of energy conservation, environmental sustainability, and economic resilience.

Pengaruh Phase Change Material Jenis Dry Ice Gel Terhadap Variasi Temperatur pada Dinding Freezer Sena, Boni; Suhendra, Bobie; Amanah, Nadia; Setiawan, Reza; Baihaqi Alfakihuddin, Muhammad Lukman
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 10 No 1 (2024): Februari
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/st.vol10.no1.a16206

The increasing population growth in cities will cause environmental detriments such as global warming and ozone depletion. The electricity need will increase in the future due to the higher temperature in the cities, leading to the higher usage of cooling equipment such as freezers. The current study proposed a method to improve the freezer's energy efficiency by using phase change material of dry ice gel. Most of previous studies only focused on the impact of position of phase change materials on the temperature of wall freezer while no previous studies consider the detailed methodology of measurement and the impact of phase change material based on dry ice gel to the variance of wall temperature. The sensor thermocouple type T and data logger ADAM 6018+ were used to measure the wall temperature of the freezer. The results showed that the sensor thermocouple was verified to the calibrated thermometer with R2 = 0.99. The installation of phase change material based on dry ice gel on the wall freezer could maintain the temperature around 1-2oC while the freezer was turned off for 4, 6, and 8 hours. The efficiency of freezer could be increased from 10% to 30% due to using dry ice gel phase change material. The future study should investigate the various types of phase change materials and the new combination of phase change materials.

Perancangan Bak Penampungan untuk Pembuangan Limbah Coolant dari Mesin Broaching Menggunakan Software Solidwork dan ANSYS Simulasi Lestyanto Ardi, Affan; Sena, Boni; Gusniar, Iwan Nugraha; Ujiburrahman; Oleh; Amanah, Nadia
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 10 No 1 (2024): Februari
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/st.vol10.no1.a17257

Industrial waste is one of the most serious problems in the industrial world. Industrial wastewater treatment plants as one of the solutions to overcome these problems require holding tanks as the main part of the system. Holding tanks function as waste reservoirs before further processing. Thus, holding tanks play an important role in reducing the negative impact of waste on the environment and preventing damage to industrial facilities. The holding tank is designed using solidwork and ANSYS in order to ensure the reability and capability in relocatting the coolant waste water. From the results of the research on the design of wastewater reservoirs, the maximum total deformation subjected to a load of 0.00017735 MM is obtained, while the smallest total deformation value is 1.9705 MM. The results of the maximum stress or voltage subjected to a load of 0.17112 Mpa while the smallest stress value is 0.080072 Mpa. And for the results of the maximum strain or strain subjected to a load of 6.868 Mpa while for the smallest strain value is 7.7904 Mpa.

PROSES PENGURANGAN KETEBALAN CYLINDER HEAD PADA GRINDING MACHINE DI PT. SINAR BENGAWAN MANDIRI Sanjaya, Istaufa; Sena, Boni
Gorontalo Journal of Infrastructure and Science Engineering Vol 6, No 2 (2023): Gorontalo Journal Of Infrastructure And Science Engineering
Publisher : Universitas Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32662/gojise.v6i2.3181

Proses manufaktur merupakan halyang biasa dijumpai pada perusahaan otomotif, logam, mesin dan alat berat. Salah satu mesin manufaktur yaitu mesin gerinda datar (surface grinding). Mesin gerinda datar digunakan untuk berbagai tujuan, seperti untuk mengurangi ketebalan cylinder head. Penggerindaan juga dilakukan untuk mendapatkan permukaan yang cukup halus pada cylinder head, selain itu dilakukannya proses penggerindaan untuk mendapatkan ketebalan yang sesuai dengan kebutuhan suatu perusahaan. Pada proses pemesinan dengan mesin gerinda datar, waktu yang didapatkan pada gerinda datar adalah 13,26 menit untuk sekali proses pemesinan. Pentingnya ketelitian dalam mengoperasikan mesin surface grinding, ketelitian dalam mengukur dan menghitung ukuran awal sampai akhir dari cylinder head agar ketika proses pemesinan berlangsung tidak melebihi batas toleransi yang diberikan oleh perusahaan.Manufacturing processes are common in automotive industry, metal industry, machine and heavy equipment industry. One of the manufacturing machines is a flat grinding machine (surface grinding). Surface grinding machines are used for various purposes, for example to reduce the thickness of the cylinder head. Surface grinding machine is also carried out to obtain a fairly smooth surface on the cylinder head, the grinding process is carried out to obtain a thickness according to the needs of a company. In the process of grinding machine, the time obtained for surface grinding is 13.26 minutes for one machining process. The precision so important in operating a surface grinding machine, precision in measuring and calculating front end dimensions of the cylinder head and the machining process are not exceed the tolerance limits company.

A COMPARISON OF CNC LATHE MACHINE PROGRAMMING SIMULATION AND CNC LATHE MACHINE PRODUCTION RESULTS Nugroho, Satrio Adi; Sena, Boni; Ujiburrahman, Ujiburrahman
Jurnal Dinamika Vokasional Teknik Mesin Vol. 9 No. 1 (2024)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v9i1.73127

This study compares the simulation results of a CNC lathe program with the actual production results of a CNC lathe. CNC lathes are used in the manufacturing of precision components for various industrial applications. Simulation of CNC lathe programs can provide an accurate estimate of the production output before the actual production process begins. In this study, we compared dimensional tolerance, geometric accuracy, and surface quality between simulated and actual results. The simulation method used is 2D modeling which involves the calculation of tool trajectories and cutting parameters inputted into the simulation panel. Actual production data was obtained from the measurement of components produced from the CNC lathe. A comparative analysis was conducted to evaluate the extent to which the simulation can predict the actual production results. The results show that, although the simulation can give a good picture, there is still a significant difference between the simulation results and actual production. The findings have practical implications in improving efficiency and accuracy in the planning and production process using CNC lathes.

Empowering society and culinary MSMEs for sustainable development goals initiatives in West Java Amanah, Nadia; Sena, Boni; Suhendra, Bobie; Yatim, Ardiansyah; Zaki, Sheikh Ahmad
Journal of Sustainable Tourism and Entrepreneurship Vol. 5 No. 3 (2024): May
Publisher : Goodwood Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/joste.v5i3.1756

Purpose: This study aimed to explore the impact of empowering society and culinary MSMEs on Sustainable Development Goals (SDGs) in West Java, focusing on Sindangmukti Village, Karawang Regency. While prior research has often used a top-down approach, neglecting direct societal impact, this study takes a bottom-up perspective, aligning with implicit SDG principles observed in community services. Research Methodology: The study employed online questionnaires with 505 households in West Java to evaluate water consumption, waste generation, and energy usage patterns. Specific investigations in Sindangmukti Village have measured community service effectiveness regarding SDGs. Results: The study found that Only 19.1% of the participants set AC temperatures within the recommended ranges. Additionally, initiatives to promote a sustainable city strategy and establish energy-efficient culinary MSMEs in Sindangmukti Village resulted in a 29% increase in knowledge among 70 participants and generated $36.71 income from bitter melon chip production within two months. Limitations: However, the study focused solely on Sindangmukti Village, neglecting the diverse cultural and problem landscapes of other villages in the Karawang Regency. Contributions: The findings of this study can inform future efforts to enhance energy, water, and waste efficiency in residential buildings in West Java, thereby fostering awareness of energy conservation, environmental sustainability, and economic resilience.

Thermal performance analysis of PCM-integrated freezer systems using numerical simulation Sena, Boni; Muhamad Faturrahman Al Hafizh; Muhammad Penta Helios; Muhammad Azril Rahmaditya; Rinaldi Suzatmiko; Dimas Bahrudin; Pratikara Herlambang; Ridwan Abdul Hakim; Nadia Amanah; Nurnida Elmira Othman
JTTM : Jurnal Terapan Teknik Mesin Vol 7 No 2 (2026): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v7i2.1992

Improving temperature stability in household freezers is an important aspect of energy conservation in refrigeration systems. One approach is the integration of Phase Change Materials (PCM) as thermal energy storage media. This study aims to design and analyze the thermal performance of a PCM-integrated freezer system using cooking oil and paraffin wax as candidate PCM materials. The refrigeration system was designed using R290 refrigerant and analyzed using CoolTools software for vapor compression cycle simulation and ANSYS Student for transient thermal simulation based on the Finite Element Method (FEM). The thermodynamic analysis produced an actual COP of 2.94 from the CoolTools simulation and a calculated thermodynamic COP of 3.27, indicating acceptable refrigeration performance under low-temperature operating conditions. The transient thermal simulation results showed that paraffin wax did not exhibit a distinct temperature plateau during the transient heating process, indicating that latent heat effects were not dominant within the simulated operating temperature range. Cooking oil demonstrated a faster thermal response due to its relatively higher effective thermal conductivity, whereas paraffin wax provided better temperature stabilization and delayed heat transfer behaviour. The results demonstrate that the thermophysical properties of PCM significantly influence heat transfer characteristics and temperature distribution inside the freezer compartment. Therefore, selecting PCM materials with appropriate latent heat capacity and thermal conductivity is essential for improving temperature stability and reducing temperature fluctuations in refrigeration systems.

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