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All Journal Jurnal Kesehatan Lingkungan indonesia Jurnal Ilmu Lingkungan Journal of Engineering and Technological Sciences Jurnal Rekayasa Mesin Journal of Mechanical Engineering Science and Technology Jurnal Otomasi Kontrol dan Instrumentasi PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat JTT (Jurnal Teknologi Terapan) International Journal of Applied Technology Research Jurnal Difusi Industrial Research Workshop and National Seminar Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Jurnal Polimesin
Kasni Sumeru
Department Of Refrigeration & Air Conditioning Engineering, Politeknik Negeri Bandung
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Rancang Bangun Particle Counter untuk Monitoring Konsentrasi PM1, PM2.5 dan PM10 di Udara Berbasis IoT Muhamad Anda Falahuddin; Asep Puloh; Sumeru Sumeru; Muhammad Arman; Wirenda Sekar Ayu; Susilawati Susilawati
Jurnal Otomasi Kontrol dan Instrumentasi Vol 16 No 2 (2024): Jurnal Otomasi Kontrol dan Instrumentasi
Publisher : Pusat Teknologi Instrumentasi dan Otomasi (PTIO) - Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/joki.2024.16.2.3

Abstract

Poor air quality is a serious health and environmental issue. Microscopic particles such as PM1, PM2.5, and PM10 cause respiratory disorders and other health problems. Therefore, accurate and continuous air quality monitoring is crucial to mitigate the impacts of air pollution. This research aims to design an Internet of Things (IoT)--based particle counter capable of real-time air quality monitoring and reporting via an online platform. The system utilizes a PMS5003 sensor to measure PM1, PM2.5, and PM10 concentrations precisely. Data from the sensor is processed by an ESP8266 microcontroller connected to the internet, enabling direct data transmission to an online platform for further analysis and visualization. Testing is done by creating a 1x1x1 meter testing chamber to simulate various environmental conditions and validate the device's performance. Results show that the particle counter provides accurate data, with an error rate of less than 10% compared to standard devices. The device demonstrates reliable operation across different environmental conditions, showcasing its robustness in practical applications. This IoT-based particle counter offers an innovative solution for effective and efficient air quality monitoring. It is expected to significantly contribute to human health protection efforts and minimize the adverse environmental impacts of air pollution.
Energy and exergy performance of R290 as a substitute for R404A in freezers: experimental investigation Muhammad Akmal; Kasni Sumeru; Toto Tohir; Yudi Prana Hikmat; Neneng Nuryati; Shodiya Sulaimon
Jurnal Polimesin Vol 23, No 2 (2025): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i2.6153

Abstract

The refrigeration sector significantly contributes to global warming due to the high Global Warming Potential (GWP) of commonly used refrigerants. This study experimentally investigates the feasibility of using R290 as a low-GWP substitute for R404A in freezer applications. Although R290 and R404A have similar normal boiling points, their GWP values differ significantly (3 for R290 vs. 3922 for R404A), making R290 a more environmentally friendly alternative. Experiments were conducted on a freezer originally designed for R404A with a 1/3 HP compressor and a refrigerant charge of 170 g. After baseline testing with R404A, the system was retrofitted with R290, using an optimized charge of 62.9 g. The system's performance was analyzed over 120 minutes, with energy and exergy evaluations conducted at 60 minutes, when the cabin temperature stabilized. Results from energy analysis indicate that replacing R404A with R290 led to a 6.1% increase in cooling capacity, a 6.0% reduction in power consumption, and a 12.4% improvement in COP. Exergy analysis showed that total irreversibility decreased from 318.1 W (R404A) to 289.8 W (R290), with compressor irreversibility being the dominant factor (50.8% for R404A vs. 51.3% for R290). The findings confirm that R290 enhances system performance by reducing irreversibility and energy consumption. These results highlight R290 as an energy-efficient and environmentally friendly alternative to R404A, providing both operational cost savings and reduced environmental impact. However, to achieve optimal performance, compressor lubricant replacement is recommended when transitioning to R290.
Performance of Rice Grain Conveyor Vacuum Blower with Variations in the Number and Shape of Impeller Angles Suwandi, Dedi; Sifa, Agus; Endramawan, Tito; Sumeru, Kasni
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 9, No 1 (2025)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v9i12025p154

Abstract

Separating rice and bran, moving rice to storage, and other processes related to moving grain or rice. In the modern rice milling industry, the process of transferring grain material already uses a pneumatic conveying system; a vacuum blower system for transferring grain is needed when milling grain to become rice. The research method used to obtain the shape of a vacuum blower with strong inlet suction power and outlet thrust is carried out by Computational Fluid Dynamics simulation and testing several types and variations in the number of blades. Simulation of forward curved blade type impellers, backward curved blade, and straight radial blade with variations in the number of 8, 10, and 12 blades. From the impeller simulation, it was obtained that the straight radial blade with 8 blades was the best. The best impeller types were made using the manual method. Measurement results were on the straight radial blade type impeller with 8 blades, with a motor speed of 1,000 rpm; the results of measuring air speed at the inlet were 34.95 m/s and at the outlet 23.08 m/s. In addition, the difference in the results between in simulation and the experiment is due to the fabrication process and air leaks.
Peningkatan Kompetensi Instruktur Balai Latihan Kerja Kabupaten Karawang dalam Bidang Perawatan dan Perbaikan Lemari Pendingin Showcase: Increasing the Competence of Instructors at Karawang Regency Vocational Training Center in the Maintenance and Repair of Showcase Refrigerator Wellid, Ismail; Falahuddin, Muhammad Anda; Arman, Muhammad; Surjanto, Ary; Sumeru, Kasni; Nuriyadi, Muhammad; Setyawan, Andriyanto
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 9 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i9.9856

Abstract

A showcase is a type of refrigerator widely found in small shops and supermarkets, and it maintains the freshness of vegetables, fruits, meat, and drinks. Because showcases are widely used, the potential for working as a technician or entrepreneur in showcase service is promising. This training aims to improve the competence of instructors at BLK Karawang in showcase maintenance and repair. Increased instructor competence impacts the quality of job seekers educated at BLK. The training was carried out in 3 working days, divided into two sessions: theory and practical. The practical material taught participants the proper refrigerant charging, troubleshooting, and repairs on showcases that experienced problems. After the training, the instructors will be evaluated on their ability to deliver the materials to job seekers under the supervision of lecturers from the Department of Refrigeration and Air Conditioning Engineering, Politeknik Negeri Bandung. Based on the evaluation, the instructors have correctly and adequately provided training materials on showcase maintenance and repair to job seekers.
Energy savings in residential air conditioners using condensate cooling in discharge and liquid lines Nani Yuningsih; Kasni Sumeru; Muhammad Aldiansyah; Rachmad Imbang Tritjahjono; Fathurahman Yudhi Nugraha; Adenkunle Moshood Abioye
Jurnal Polimesin Vol 23, No 4 (2025): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i4.6739

Abstract

This research investigates the use of condensate produced by the evaporator to cool the discharge and liquid lines in order to reduce electricity consumption in a residential split-type air conditioner (AC). The experimental setup used a 0.75 kW compressor with R32 refrigerant, where the discharge and liquid line heat exchangers were 20 cm and 15 cm long, respectively. Data were collected over 180 minutes at 5-minute intervals. Results show that using the liquid line cooler (LLC) alone reduced electricity consumption by 5.3% and increased cooling capacity by 2.3%. Using the discharge line cooler (DLC) alone reduced electricity consumption by 8.3% and increased cooling capacity by 7.3%. When both coolers were applied simultaneously (LDC mode), electricity consumption decreased by 10.9% and cooling capacity increased by 9.7%. The corresponding improvements in coefficient of performance (COP) were 9.1% (LLC), 18.6% (DLC), and 24.7% (LDC). These results indicate that using condensate to both the discharge and liquid lines is more effective in reducing electricity consumption and improving AC performance than cooling only one line.
Co-Authors Adenkunle Moshood Abioye Afif Miftakh Hafidzudin Aji A. B. Andriyanto Setyawan Apip Badarudin Ary Surjanto Asep Puloh Azhar Abdul Aziz Cecep Sunardi Endramawan, Tito Falahuddin, Muhammad Anda Farid Nasir Ani Farid Nasir Ani Fathurahman Yudhi Nugraha Firdaus Bin Sukri, Mohamad Haslinda Mohamed Kamar, Haslinda Mohamed Henry Nasution Henry Nasution Husain Akbar Sumeru Ismail Wellid Ismail Wellid Ismail Wellid Joshua Putra Nahim Kamil Muhammad Gunaprawira Luga Martin Simbolon Luga Martin Simbolon Luqman Raji Markus Markus Mitrakusuma, Windy Hermawan Mohamad Firdaus bin Sukri Mohamad Firdaus bin Sukri Mohamad Firdaus bin Sukri Mohamad Firdaus bin Sukri Mohamad Firdaus bin Sukri Mohamad Firdaus bin Sukri Mohd Farid Muhammad Said, Mohd Farid Muhammad Mohd Rozi Mohd Perang Muh Arman Muhamad Anda Falahuddin Muhamad Anda Falahuddin Muhamad Anda Falahuddin Muhammad Akmal Muhammad Aldiansyah Muhammad Arman Muhammad Idrus Alhamid, Muhammad Idrus Muliawan, Rizki Nanda Fauzan Pratama Nani Yuningsih Nazri Kamsah, Nazri Neneng Nuryati Neneng Nuryati Neni Emrida Panjaitan Nida’Ul Farihah Nita Nurfitriani Novianti, Senia Firlania Nuriyadi, Muhammad Pradita, Didiet Tricahya Rachmad Imbang Trittjahjono Ridwan Nugraha Ridwan Nugraha Salma Dzakiyah Az-zahro Senia Firlania Novianti Shodiya Sulaimon Shodiya Sulaimon Shodiya Sulaimon Shodiya Sulaimon Sifa, Agus Sunardi, Cecep Susilawati Susilawati Suwandi, Dedi Tandi Sutandi Toto Tohir Toto Tohir Triaji Pangripto Pramudantoro Wellid, Ismail Wirenda Sekar Ayu Y Gajawa Yudi Prana Hikmat Yudi Prana Hikmat