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All Journal Jurnal Pengabdian Multidisiplin International Journal of Community Engagement Payungi Jurnal Teknik Mesin Venus: Jurnal Publikasi Rumpun Ilmu Teknik Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer
Ratna Monasari
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Religion Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Mechanical Engineering Public Health Social Sciences Other

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Training and Installation of Solar Power Public Street Lighting for Karang Taruna at Bareng Village Klojen Malang Districs Agus Setiawan; Sugeng Hadi Susilo; Elka Faizal; Ratna Monasari
International Journal of Community Engagement Payungi Vol. 2 No. 1 (2022): International Journal of Community Engagement Payungi
Publisher : Yayasan Payungi Smart Madani

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (569.4 KB) | DOI: 10.58879/ijcep.v2i1.15

Abstract

To improve security for residents in the area at ​​Bareng Village Klojen Malang Districts, one of the most important is lighting. The installation of public street lighting is still minimal, so it is far from meeting security and safety standards. In order to ensure the availability of safe and reliable street lighting, training on the assembly of solar-powered street lighting lamps (PJU) was carried out for members of the youth group RT10 RW 08 at Bareng Village Klojen Malang Districs. Prior to the assembly process for street lighting, a brief training was conducted on the assembly of solar-powered PJU light poles and their installation. Hence, they have skills that can be developed people. The result of assistance giving an increasing knowledge and skills of residents of RT10 RW 08 at ​​Bareng Village Klojen Malang Districts. This place in the fabrication and installation of solar-powered PJU lights. In addition, the installation of 3 Solar Powered PJU lights that are safe and reliable, and have an impact on increasing environmental security and residents' activities. Keywords: Solar Power, Public Street Lighting, Installation Solar Power
Alat Permainan Edukatif dan Sosialisasi Read Aloud Untuk Meningkatkan Kualitas Pembelajaran di Pos PAUD Bina Cendikia Kelurahan Bareng Malang Ratna Monasari; Mufarrih, Am.; Farida, Nike Nur; Qosim, Nanang; Setiawan, Agus; Winoko, Yuniarto Agus
Jurnal Pengabdian Multidisiplin Vol. 3 No. 2 (2023): Jurnal Pengabdian Multidisiplin
Publisher : Kuras Institute & Scidac Plus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51214/japamul.v3i2.617

Abstract

Meningkatkan kemampuan anak pada usia dini dapat diasah dengan memberikan ragam jenis permainan terutama permainan yang bersifat edukatif. Dengan alat permainan edukatif yang tepat perkembangan anak dapat terstimulasi secara optimal. Ragam alat permainan edukatif saat ini juga tak lepas dari metode penggunaan termasuk metode penyampaian cerita kepada anak. Pada Pos PAUD Bina Cendikia Kelurahan Bareng Kecamatan Klojen Malang ketersediaan alat permbelajaran edukatif masih terbatas sehingga kegiatan belajar untuk pengembangan aspek bahasa siswa kurang terasah. Masa golden age pada anak usia dini tidak luput dari kondisi tumbuh kembang yang optimal serta stimulus yang tepat, salah satu stimulus yang dapat diberikan kepada anak yaitu dengan membacakan cerita dengan metode read aloud agar kemampuan bahasa anak dapat meningkat. Mengacu pada kondisi tersebut melalui program PPM Politeknik Negeri Malang memberikan seperangkat alat permainan edukatif yang dapat meningkatkan kemampuan berbahasa bagi anak usia dini. Selain itu agar stimulus juga berlangsung tidak hanya di sekolah, sosialisasi membaca read aloud bagi anak juga diberikan bagi orang tua siswa. Hasil dari kegiatan PPM di Pos PAUD Bina Cendikia 1) tersedianya alat permainan edukatif untuk meningkatkan kemampuan berbahasa, 2) Guru dan orang tua siswa menyambut dengan baik materi sosialisasi read aloud untuk memberikan stimulasi kemampuan berbahasa anak usia dini dan menerapkannya setiap hari.
PENGARUH DIAMETER DAN BAHAN RESONATOR KNALPOT TERHADAP EMISI GAS BUANG DAN TINGKAT KEBISINGAN MESIN 1000 CC: ANALYSIS OF THE EFFECT OF EXHAUST RESONATOR DIAMETER AND MATERIAL ON EXHAUST EMISSIONS AND NOISE LEVEL OF 1000 CC ENGINE Berlyanto Dwi Arrokhman; Ratna Monasari
Jurnal Teknik Mesin Vol. 2 No. 1 (2023): JURNAL TEKNIK MESIN
Publisher : Program Studi Teknik Mesin PSDKU Polinema Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jmeeg.v2i1.3393

Abstract

This study aims to determine the effect of different diameter sizes and materials used in the manufacture of exhaust resonators on vehicle engines, especially in four-wheeled vehicles or gasoline-fueled cars. This research uses experimental research methods, namely by comparing the use of resonators made of galvanized steel and stainless steel with different diameter sizes of 100 mm and 125 mm, the research object used is a Suzuki Jimny LJ80V car with a 1000 cc engine. The data taken are the results of exhaust emissions testing and noise testing of galvanized steel resonators with diameters of 100 mm and 125 mm and stainless steel resonators with diameters of 100 and 125 mm. Based on the results of the noise test, the 125 mm galvanized steel resonator can reduce noise with a result of 94.5 dBA at 6000 rpm. In the exhaust gas emission test, the lowest HC exhaust gas is produced by stainless steel resonator at 198.3 ppm at 3500 rpm, the lowest exhaust gas by 100 mm galvanized steel resonator at 0.15% at 1000 rpm.
Pengaruh Komposisi dan Lipatan Filter Udara Biokomposit Berbahan Ampas Tebu dan Sekam Padi terhadap Performa Mesin 4 Langkah 150cc Muhammad Daniar Hidayat; Purwoko Purwoko; Ahmad Hanif Firdaus; Ratna Monasari
Mars : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 3 No. 3 (2025): Juni : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v3i3.863

Abstract

Internal combustion engines generate thermal energy through the combustion of an air-fuel mixture. The incoming air must be filtered, as it contains impurities and particles. While air filters are commonly made from paper, they can also be developed using organic waste materials such as sugarcane bagasse and rice husk. This study aims to analyze the effect of biocomposite air filters on engine power, torque, and specific fuel consumption (SFC), by varying the material composition and the number of pleats, and comparing the results with those of a standard air filter. The method used is a quantitative experimental approach involving dyno testing on a 150 cc motorcycle engine. The tested material compositions include 50:50, 40:60, 30:70, 60:40, and 70:30 (sugarcane bagasse\:rice husk), with pleat counts of 28, 26, and 24. Results showed that the biocomposite filter with 28 pleats and a 30:70 composition delivered the best performance, producing 18.47 Hp and 16.66 Nm of torque—higher than the standard filter’s 17.98 Hp and 15.52 Nm. In terms of fuel efficiency, the 26-pleat filter with a 50:50 composition recorded the lowest SFC at 41.90 g/kWh, significantly better than the standard filter’s 53.03 g/kWh. Conversely, the 60:40 composition resulted in the highest SFC due to increased airflow resistance.
Pengaruh Sudut Drive Pulley dan Massa Roller terhadap Daya dan Tingkat Kebisingan pada Sepeda Motor Bertransmisi Otomatis 110cc Bagus Irawan; Purwoko Purwoko; Ratna Monasari; Ahmad Hanif Firdaus
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 3 No. 3 (2025): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v3i3.935

Abstract

Automatic transmission motorcycles, especially those with 110cc engines, are increasingly in demand by the public because of their practicality. The performance of this motorcycle is greatly influenced by the transmission system, especially the Drive pulley and Roller components. The correct setting of the Drive pulley angle and Roller mass can improve engine performance and reduce noise, thus supporting driving comfort. This study aims to analyze the effect of variations in the Drive pulley angle and Roller mass on engine performance, in terms of power (HP), torque (Nm), and noise level (dB) at several engine speeds. The variations tested include the Drive pulley angle of 13.5°–14° and the Roller mass of 13–15 grams, with testing at 5000, 6000, 7000, and 8000 RPM. The test results show that the combination of the angle and Roller mass affects engine performance. At 5000 RPM, the combination of the 14° angle and 15 gram Roller produces the highest power, torque, and noise. At 6000 RPM, the combination of 13.8° and 13 grams produces a maximum power of 6.86 HP and 8.15 Nm of torque, with a noise of 97.40 dB. While at 7000–8000 RPM, the combination of 13.5° and 15 grams provides the best performance with 7.10 HP and 6.30 Nm of torque, accompanied by a noise of 104.17 dB. In general, increasing the angle and mass of the Roller increases performance, but is followed by an increase in noise.
Co-Authors AGUS SETIAWAN Agus Setiawan Ahmad Hanif Firdaus AM Mufarrih Bagus Irawan Berlyanto Dwi Arrokhman Elka Faizal Farida, Nike Nur Muhammad Daniar Hidayat Nanang Qosim Purwoko Purwoko Purwoko Purwoko Sugeng Hadi Susilo Yuniarto Agus Winoko, Yuniarto Agus