cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
REM
Contact Email
rieza@eng.uir.ac.id
Phone
+6281378508244
Journal Mail Official
rem@journal.uir.ac.id
Editorial Address
Jl. Kaharuddin Nasution No 113 Perhentian Marpoyan, Pekanbaru, Riau 28284
Location
Kota pekanbaru,
Riau
INDONESIA
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.
Arjuna Subject : -
Articles 80 Documents
 2   3   4   5   6 
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.
PEMANFAATAN PANAS PADA DINDING KOMPOR GASIFIKASI BIOMASSA UNTUK PEMBANGKIT LISTRIK DC MENGGUNAKAN THERMOELECTRIC GENERATOR Dian Hadi Armansyah; Eddy Elfiano; Dody Yulianto
Journal of Renewable Energy and Mechanics Vol. 3 No. 02 (2020): REM
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (400.802 KB) | DOI: 10.25299/rem.2020.vol3.no02.4287

Abstract

The stove is one technology that plays an important role in the utilization of energy at the household scale. The biomass stove studied was a blower system gasification stove. In the blower system, oxygen entering the combustion chamber flows continuously according to the needs of combustion. In this biomass gasification stove study, researchers will also use the biomass stove wall or thermal energy into kinetic energy for grinding blowers and charging systems. This study aims to obtain fuel by utilizing biomass or organic waste as biomass stove fuel and get the energy driving the blower and charging system by utilizing a thermoelectric generator system. biomass stoves used in this study use the principle method of Top-Lif Up Draft (T-LUD) Gasifier, a type of gasifier that matches the characteristics of biomass that has high volatile matter, where the stove is designed intended for biomass fuel from agricultural waste products and industry, boiling 1 kg of water is done using wood chips by varying the area of ​​the air flow door, which is 50%, 75%, and 100%. Can be analyzed Comparison of the performance of the biomass cooker stove and the power generated by the thermoelectric generator, at each door width of the air flow results are different, this is due to the mass of fuel consumption and fire temperature. After calculating the highest thermal efficiency results obtained in the area of ​​50% air flow ventilation and obtained power generated 1.83 watts with 100% ventilation flow door area using wood chips.
THE EFFECT OF FREQUENCY VARIATION ON DIELECTRIC CONSTANT OF RAPHIA HOOKERI Ubong Iboh; Ubong Robert; Grace Umoren; Uduakobong Okorie
Journal of Renewable Energy and Mechanics Vol. 3 No. 02 (2020): REM
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.977 KB) | DOI: 10.25299/rem.2020.vol3.no02.4433

Abstract

This work sought to investigate the effect of varying the frequency of an applied electric field on the dielectric constant of raphia hookeri. The aim of the work was to ascertain the suitability of using the sample for engineering applications. It was revealed, from the recorded results, that the dielectric constant of the sample decays exponentially with frequency. Also, greater degree of polarisation was observed with decrease in frequency. Again, as a good thermal insulator, it was revealed that the values of the sample’s dielectric constant compared favourably with those of commonly used conventional dielectric materials. Thus, it is obvious that if put into production cycle, the sample can serve as a low-cost and environmentally friendly material suitable for engineering applications within audio frequency range. This will, in turn, help to provide raw material for electronic industry and also improve the economy.
PEMANFAATAN LIMBAH SERAT (FIBER) BUAH KELAPA SAWIT DAN PLASTIK DAUR ULANG (POLYPROPYLENE) SEBAGAI MATERIAL KOMPOSIT PAPAN PARTIKEL (PARTICLE BOARD) Arif Dedi Kurniawan
Journal of Renewable Energy and Mechanics Vol. 3 No. 02 (2020): REM
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (419.769 KB) | DOI: 10.25299/rem.2020.vol3.no02.4884

Abstract

Limbah plastik dan serat buah kelapa sawit jumlah nya sangat besar di Indonesia jika jumlah plastik dan serat buah kelapa sawit terus meningkat dikhawatirkan akan memberikan dampak buruk bagi lingkungan, untuk itu perlu ada cara untuk menggunakan kembali limbah plastik dan serat buah kelapa sawit, alternatif yang dapat dilakukan yaitu dengan mengubah kedua bahan tersebut mejadi papan partikel, Penelitian ini bertujuan mengetahui kualitas dari papan komposit dalam hal ini sifat fisis dan mekanik (kerapatan, kadar air, pengembangan tebal, modulus elastisitas (MOE), dan modulus patah (MOR)). Dari serat buah sawit dengan perekat plastik daur ulang polypropylene. dengan perbedaan komposisi : 80% serat (filler) + 20% plastik (matriks) , 75% serat (filler) + 25% plastik (matriks), 70% serat (filler) + 30% plastik (matriks).dari hasil perhitungan diperoleh nilai uji kerapatan sebesar 0,71 , 0,73 dan 0,82 , kadar air sebesar 3,33 %, 2,25 % dan 3,77 %, pengembangan tebal sebesar 9 %, 13 % dan 14 %, modulus elastisitas 0,0455 (104 kgf/cm3) , 0,1519 (104 kgf/cm3) dan 0,1053 (104 kgf/cm3), modulus patah sebesar 67,2483 (kgf/cm3), 102,918 (kgf/cm3) dan 32,8493 (kgf/cm3), dari semua hasil pengujian hanya modulus elastisitas yang tidak memenuhi standar SNI 03-2105-2006
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
PERBANDINGAN EFEKTIVITAS SUDUT PENUTUP 450 DAN 600 PADA DOUBLE SLOPE SOLAR DESTILASI SEBAGAI PENYEDIA AIR BERSIH Ni Ketut Caturwati
Journal of Renewable Energy and Mechanics Vol. 3 No. 02 (2020): REM
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (610.877 KB) | DOI: 10.25299/rem.2020.vol3.no02.5176

Abstract

Air Bersih merupakan kebutuhan pokok manusia dalam memenuhi kebutuhan hidupnya. Banyak cara yang dapat digunakan dalam menjernihkan air, salah satunya menggunakan alat distilasi surya. Alat Distilasi Surya merupakan alat sederhana dalam membantu masyarakat menjernihkan air dengan menggunakan energi Matahari. Banyak modifikasi desain alat yang dapat dilakukan, salah satunya adalah dengan memodifikasi sudut penutup kaca untuk meningkatkan produktivitas alat distilasi. Inilah yang menjadi tujuan dari penelitian ini, yakni untuk mengetahui kinerja dan efisiensi alat ketika sudut penutup kaca diubah dan ketika sudut berapakah efisiensinya bagus. Metode penelitian yang digunakan adalah metode eksperimental yaitu melakukan pengamatan untuk mencari data sebab akibat dalam suatu dalam suatu proses melalui eksperimen sehingga dapat mengetahui pengaruh kemiringan sudut penutup kaca distilstor surya terhadap produksi air kondensat. Didalam penelitian ini, hasil maksimal kondensat yang diperoleh dari pengujian antara sudut cover 600 dengan 450 adalah sebesar 1133 mililiter yang dihasilkan oleh penggunaan sudut cover 450 dengan rata-rata efisiensi alat 40,07 %.
THE FUSION EFFECT OF COMPUTED RADIOGRAPHY IMAGE OF WELDING PLATE DIFFERENT IN POWER TO ITS IMAGE QUALITY Tengku Mohammad Yoshandi
Journal of Renewable Energy and Mechanics Vol. 3 No. 02 (2020): REM
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (175.155 KB) | DOI: 10.25299/rem.2020.vol3.no02.5225

Abstract

Instrument testing which is done is indutries are one of method to maintain the primary condition of insrument with purpose to prevent damage on instrument which will cause accident of death. Testing conducted using non-destructive technique or NDT, which is one of testing which not leave any damage or harm to the test speciment. Non-destructive testing in industry is levelling up to digital display. This digital radiography using image plate instead of film. In this research, computed radiography invarious energy and curent is used. Voltage and current are factors that give effect to the resulting image. Voltage give effect to contrast, contrast increase the number of x-ray emmit from the x-ray tube, which is higher the current make the noise higher to image. In this study, the important parameters are voltage and current. Exposure distant and time are 100 cm and 1 minute. With these distant and time, the speciment which 17 mm thick being exposed to the radiation with various energy and current which is 160 kV, 180 kV, and 200 kV, 3 mA, 5 mA, and 10 mA. The resulting images are analyzed with iSee! and image fusion using MATLAB. Simple fusion method is the simplest way of fusing the image which done by the pixel selection, or with extraction. Image that been fused divided by two, which is the fused image with the same voltage but different current and vice versa. The comparison is done by determined the SNR in image with iSee!. After fusion, the SNR is increase which mean the increase of image quality
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.

Page 4 of 8 | Total Record : 80

 2   3   4   5   6 

Filter by Year

2018 2024


Reset
Filter By Issues
All Issue Vol. 7 No. 02 (2024): REM VOL 7 NO 02 2024 Vol. 7 No. 01 (2024): REM VOL 7 NO 01 2024 Vol. 6 No. 02 (2023): REM VOL 6 NO 02 2023 Vol. 6 No. 01 (2023): REM VOL 6 NO 01 2023 Vol. 5 No. 02 (2022): REM VOL 5 NO 02 2022 Vol. 5 No. 01 (2022): REM VOL 5 NO 01 2022 Vol. 4 No. 02 (2021): Journal of Renewable Energy and Mechanics (REM) Vol. 4 No. 01 (2021): REM Vol. 3 No. 02 (2020): REM Vol. 3 No. 01 (2020): REM Vol. 2 No. 02 (2019): REM Vol. 2 No. 01 (2019): REM Vol 2 No 01 (2019): REM Vol. 1 No. 02 (2018): REM Vol 1 No 02 (2018): REM More Issue