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Redaksi Jurnal Rekayasa Mesin Jurusan Teknik Mesin Fakultas Teknik, Universitas Brawijaya Jl. MT. Haryono 167 Malang, Jawa Timur Indonesia 65145
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Kota malang,
Jawa timur
INDONESIA
Rekayasa Mesin
Published by Universitas Brawijaya
ISSN : 23381663     EISSN : 24776041     DOI : 10.21776/ub.jrm
Core Subject : Engineering,
Mechanical Engineering
Rekayasa Mesin is published by Mechanical Engineering Department, Faculty of Engineering, Brawijaya, Malang-East Java-Indonesia. Rekayasa Mesin is an open-access peer reviewed journal that mediates the dissemination of academicians, researchers, and practitioners in mechanical engineering. Rekayasa Mesin accepts submission from all over the world, especially from Indonesia. Rekayasa Mesin aims to provide a forum for national and international academicians, researchers and practitioners on mechanical engineering to publish the original articles. All accepted articles will be published and will be freely available to all readers with worldwide visibility and coverage. The scope of Rekayasa Mesin are the specific topics issues in mechanical engineering such as design, energy conversion, manufacture, and metallurgy. All articles submitted to this journal can be written in Bahasa and English Language.
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Articles 12 Documents
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Search results for , issue "Vol 10, No 1 (2019)" : 12 Documents clear
Kajian Eksperimental Mesin Pendingin Adsorpsi Tenaga Surya dengan Menggunakan Adsorben Campuran Sitorus, Tulus Burhanuddin
Jurnal Rekayasa Mesin Vol 10, No 1 (2019)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2019.010.01.7

Abstract

The purpose of this study was to obtain the performance of the adsorption refrigerator driven by solar energy using mixed adsorbents. The refrigerant used is methanol with 99% purity. The adsorbent used is a mixture of active carbon-active alumina with mass of 7 kg. The type of active alumina used is molecular sieve 13X and the activated carbon used is the ordinary type of coconut shell with 1-3 mm grain size and is produced in the province of North Sumatra. Note that active alumina and activated carbon tested can absorb methanol in the range of 350 ml/kg and 300 ml/kg with a heat source of about 120oC. The test was carried out in the open field exposed to solar radiation from 08.00 WIB until 08.00 WIB the next day for seven cycles. The average of solar radiation ranges from 107.036-214.44 W/m2, and the duration of radiation varies from 12.03 to 12.28 hours/day during experiments. The test results also show that the use of mixed adsorbents with methanol adsorbate can produce evaporation temperatures up to about 4,16-13,90°C with a heat source from a temperature of 91.32-97.35°C. The efficiency of collector obtained during testing ranges from 60.09 to 62.26% with maximum solar radiation conditions ranging from 799.40 to 882.76 W/m2. The COP value obtained in the range 0.0770-0.1003 with the total daily radiation between 11.245-17.156 MJ/m2.
Analisis Keandalan Mesin Produksi Tissue Basah Sulistyarini, Dwi Hadi; Setyarini, Putu Hadi; Cahyawati, Amanda Nur
Jurnal Rekayasa Mesin Vol 10, No 1 (2019)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2019.010.01.12

Abstract

The wet tissue company in this research has 46 volpack machines, 44 are used to produce wet sanitizer tissue and 2 other machines are used to produce wet cologne tissue. During this time, the company produces cologne type wet tissue where its production does not reach the production target. One of the causes of this problem was the high downtime influenced by the reliability of these components and machine; so causing the production capacity of wet cologne tissue to be reduced and company's production targets not achieved. Therefore, in order to achieve the company's production targets and to make the production process more efficient and effective, it is necessary good maintenance actions that pay attention to the reliability value of each critical component. This study analyzes the reliability of critical components so that companies can take action to increase their machine reliability.

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