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Journal of Renewable Energy and Mechanics
Published by Universitas Islam Riau
ISSN : 27146219     EISSN : 26148315     DOI : 10.25299
Core Subject : Social, Engineering,
Automotive Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences
REM is a peer-reviewed and open access journal that publishes significant and important research from area of Mechanical and Material Science and Development of Technology related with Mechanical Engineering. We accept submission from all over the world on English language. Our Editorial Board members are prominent and active researchers in renewable energy and mechanical engineering fields who ensure efficient, fair, and constructive peer-review process. All accepted articles will be published freely and available to all readers with worldwide visibility and coverage. REM (Journal of Renewable Energy and Mechanics) published periodically two times annually by Department of Mechanical Engineering, Faculty of Engineering, Universitas Islam Riau.
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Articles 5 Documents
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Search results for , issue "Vol. 4 No. 01 (2021): REM" : 5 Documents clear
The Effect of Silica Pellet Pressing Towards Porosity and Permeability Heri Fadli; Dedikarni Panuh; Rieza Zulrian Aldio; Dody Yulianto
Journal of Renewable Energy and Mechanics Vol. 4 No. 01 (2021): REM
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (233.158 KB) | DOI: 10.25299/rem.2021.vol4.no01.4271

Abstract

Klasifikasi silika (SiO2) dibagi dalam empat karakter dasar silika yaitu struktur kristal, dispersitas, komposisi permukaan dan porositas. Sebelumnya pasir silika ini banyak digunakan oleh industri minyak dan gas sebagai proppant (pasir frak) maupun sebagai filter air. Pilihan proppant tergantung pada jenis permeabilitas atau kekuatan butir yang dibutuhkan. Dimana proppant dengan ukuran yang lebih besar akan memberikan permeabilitas rekahan yang lebih baik, karena nilai permeabilitas akan meningkat seiring dengan bertambahnya diameter dari butiran. Penelitian ini bertujuan untuk mengetahui pengaruh penekanan pellet silika terhadap porositas dan permeabilitas. Penekanan pellet silika ini menggunakan mesin press hidrolik dengan type KW05-135 dan kapasitas 10.000 Kg. Peneliti membuat pellet silika dengan kandungan pasir silika berukuran butir seragam (100 mesh) sebanyak 8,74 g/cm3, menggunakan perekat jenis Polyethylene Glycol (PEG) 400 sebanyak 0,57 g/cm3, dan Aluminium Powder 3,42 g/cm3. Cetakan yang digunakan Mold Pellet Silika Type Alloy 410 dengan diameter dalam 27 mm, diameter luar 57 mm dan ketinggian lubang cetakan 89 mm dengan penekanan 1000 Kg, 3000 Kg, dan 5000 Kg, serta memberikan suhu sintering sebesar 1200°C. Adapun nilai porositas optimum yang diperoleh sebesar 39,25% dan nilai permeabilitas optimum yang di dapatkan sebesar 57 mD.
ANALISA KOROSI RETAK TEGANG MATERIAL AISI 304 DENGAN VARIASI PEMBEBANAN PADA MEDIA AIR LAUT Eko Saputra
Journal of Renewable Energy and Mechanics Vol. 4 No. 01 (2021): REM
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (403.901 KB) | DOI: 10.25299/rem.2021.vol4.no01.4948

Abstract

Stress Corrosion Cracking [SCC] atau korosi retak tegang merupakan kegagalan logam korosi hasil peretakan intergranular dan transgranular dibawah pengaruh tegangan tarik dan lingkungan korosif. Stress Corrosion Cracking sering terjadi pada pipa bawah laut. Hal ini disebabkan karena pengelasan yang biasa dilakukan pada pipa menghasilkan tegangan sisa dan kombinasi dengan media air laut yang korosif menyebabkan terjadinya SCC. Tujuan penelitian ini adalah untuk memahami fenomena SCC dan mengkaji pengaruh variasi beban terhadap SCC pada material pipa AISI 304. Metode pengujian yang digunakan adalah C ring, dengan variasi beban 3 kN, 4kN dan 5kN. Matrial dicelup dalam media air laut selama 5 hari, 10 hari dan 15 hari. Pengujian yang dilakukan adalah uji kekerasan, pengambilan data kehilangan berat, perhitungan laju korosi dan pengukuran luas area retak dengan mikroskop optik. Hasil pengujian kekerasan menunjukan peningkatan nilai kekerasan spesimen setelah dilakukan pembebanan dari kekerasan awal 163 VHN naik menjadi 165,5 VHN Pada beban 3 kN, 186,3 VHN pada beban 4kN 189,1 VHN dan pada beban 5kN. Kehilangan berat dan laju korosi dipengaruhi besarnya beban dan lamanya waktu pencelupan. Kehilangan berat dan laju korosi terbesar terjadi pada spesimen dengan beban 5 kN dan waktu pencelupan 15 hari dan yang terkecil terjadi pada beban 3 kN dan pencelupan 5 hari. Luas retak juga meningkat dengan naiknya beban dan bertambahnya waktu perendaman. Spesimen yang memiliki area retak terbesar terjadi pada spesimen dengan beban 5 kN dengan waktu pencelupan 15 hari yaitu sebesar 999039,09 µₘ2 dan spesimen yang memiliki area retak terkecil ialah spesimen dengan beban 3 kN pada waktu pencelupan 5 hari sebesar 285494,76 µₘ2. Penelitian ini menunjukan bahwa beban yang diberikan sebaiknya maksimal hanya sebesar 4 kN, karena peningkatan beban di atas nilai tersebut menyebabkan laju korosi meningkat tajam
DESIGN AND ANALYSIS OF THERMAL SHOWCASE MINI AS A BEVERAGE COOLER USING A THERMOELECTRIC MODULE Muhammad Helmy; Rieza Zulrian Aldio
Journal of Renewable Energy and Mechanics Vol. 4 No. 01 (2021): REM
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (282.998 KB) | DOI: 10.25299/rem.2021.vol4.no01.5577

Abstract

In Indonesia, which has a tropical climate, a beverage cooler is needed. Almost every home, office, company, supermarket, and mall has installed beverage coolers. This has become a major necessity for people living in tropical countries. Especially those who live in eastern Indonesia, such as Ambon, NTT, and Papua, which have very hot temperatures. There are various types of use of the thermoelectric or peltier module, including food coolers, medicinal coolers, drinking water coolers in dispensers, and computer processor coolers. Besides being easy to apply, this tool is expected to be able to open up ideas in the use of thermoelectric modules that are more environmentally friendly than refrigerants. This research was conducted to obtain the size of the showcase mini design, the assembly process of the showcase mini tool, and to obtain the thermal analysis results contained in the showcase mini tool as a cooling medium. Showcase is a refrigerator that is used to display food or drinks that you want to display using glass media as a standout for the product being displayed. Thermoelectric technology is a technology that works by converting heat energy into electrical energy directly or vice versa, from electrical energy to produce cold energy. Thermoelectric is made of solid state material (solid material) which can convert energy from temperature difference to potential difference or vice versa. In this study, 2 variations of cooling load were used, namely without cooling load and with cooling load. Thermal analysis was carried out and got the results. The highest result from the calculation of conduction heat transfer load without cooling load is 0.013 Watt. The highest result from the calculation of the conduction heat transfer load with the cooling load is 0.010 Watt. The highest result from calculating the product heat load is 1.555 Watts. The highest result from the calculation of COP (Coefficient Of Performance) is 4,823. The expenses incurred each month are 16,000 rupiah.
Optimizing Oil Production at the Gathering Station by Maintaining the Oil Stock Tank / Interface Level in the Wash Tank Using the ROC System Rycha Melysa
Journal of Renewable Energy and Mechanics Vol. 4 No. 01 (2021): REM
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (292.848 KB) | DOI: 10.25299/rem.2021.vol4.no01.5772

Abstract

One of the production problems that arise at the Gathering Station is an unstable production problem, this is caused by controlling the level of fluid in the wash tank that is less than the maximum for that need to be improved by changing the system from manual to automatic. To maintain the stability of production at the gathering station, special measures such as controlling fluid levels in the storage tanks need to be carried out, monitoring pressure, temperature monitoring and so on that can have a positive effect on oil production at the gathering station. Wash Tank is a tank that is useful for temporary storage of liquid fluid (liquid) that comes from the boot gas. The liquid fluid entering the wash tank consists of a mixture of crude oil and water. At the Wash tank the process of separation between crude oil and water. This washing tank is the largest tank compared to other processing tanks at the gathering station, its diameter is around 85 ft to 90 ft, and its height is around 35 ft to 40 ft. The normal level in the separation process is 36 ft, where the level 1 ft - 29 ft is the water level, while the level 29 ft - 36 ft is the oil level. The 1ft - 29 ft level is referred to as the interface level, where the water level is expected to be at level 29 and the thickness of the oil / oil stock tank 7 ft in the wash tank. Research conducted on the problem of controlling the level of fluid in the wash tank, where manual control is ineffective and inefficient, for this reason it is necessary to change from a manual to automatic process with the ROC (Remote Operation Control) system, the changes made are expected to maintain the interface and the oil stock tank in accordance with the set point that has been determined and where the amount of oil production per day at the gathering station is very influential on the oil stock tank so that the oil pumped to the shipping line has a BS&W below 1% and has a temperature of 130 ° F -150 ° F In order to obtain this value, we must maintain the interface and the oil stock tank in accordance with the specified set point and where the amount of oil production per day at the gathering station is very influential on the oil stock tank
DIRECTION FLOW (DC) ELECTRICITY PRODUCTION THROUGH THE UTILIZATION OF STONE BANANA LEATHER WASTE (MUSA BALBISIANA) TO BE AN ENVIRONMENTALLY FRIENDLY BATTERY Rafil Arizona Rafil
Journal of Renewable Energy and Mechanics Vol. 4 No. 01 (2021): REM
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (478.417 KB) | DOI: 10.25299/rem.2021.vol4.no01.6006

Abstract

Batteries are one of the world's favorite sources of energy because of their ease and practicality of use. In a conventional battery, there are heavy metals such as mercury, lead, cadmium, and nickel. All these metals are B3 waste which is very dangerous for the environment and the human body if it is not recycled properly. Efforts that can be made to overcome the problem of B3 waste above are by researching and utilizing the waste of banana peel (Musa Balbisiana) to produce direct electrical energy (DC). With the aim of the community getting an environmentally friendly source of electrical energy, easy to recycle and worrying about the magnitude of the danger because the impact of heavy metals can be reduced. The purpose of this study is to determine the voltage (voltage) produced and the durability of the bio-battery made. The method used is to make a bio-battery paste from banana peels instead of the paste on conventional batteries. The results obtained from this study are the banana peel waste paste can conduct electricity. Produces a voltage of 1.24 volts and the bio-battery made from banana peel can last for 16 hours.

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