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ANALISIS LAJU PENDINGINAN BAHAN MAKANAN DALAM COOLBOX UNTUK PEMASARAN DENGAN WATER MISTING SYSTEM DI KOTA AMBON Leslie S Loppies; Eka Rahmat Mahayani Anthonio Putera Lilipaly
JURNAL SIMETRIK Vol 11, No 1 (2021)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/js.v11i1.620

Food preservation can be done by using cooling system, however, the preservation used in Ambon traditional market is still the old ways of pouring cold water on the materials. The method caused many types of pollution such as smell, dirty puddle, and the damage of the road. By using a more effective and efficient cooling system, the food material is expected to be more clean, the market will be better and less damaged road. This will result in a happier customer and seller. The water misting system can keep the materials temperature at 10-15⁰C. The materials use is kale and fish. These materials can last all day and looked fresh. This system did not create pollution, dirty water puddle, and also consumed less water.

Pengaruh Deferensisasi Kotak Pendingin Bagi Penjual Ikan Sistem Delivery Pada Masa Pandemi Covid-19 Di Kota Ambon Leslie Sovie Loppies
JURNAL SIMETRIK Vol 11, No 2 (2021)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/js.v11i2.623

Pada masa pandemi Covid-19 di Indonesia khususnya di Kota Ambon,masyarakat dihimbau untuk menjalankan protokol kesehatan salah satunya adalah dengan menjauhi kerumunan. Pasar merupakan tempat yang ramai setiap harinya oleh karena itu dibutuhkan layanan delivery dimana setiap orang dapat membeli ikan dari pedagang keliling langsung dari rumah tanpa harus mengunjungi pasar. Para penjual ikan sistem delivery biasanya hanyamenaruh ikan pada kotak stereofoam yang diisi es batu,hal ini dapat menyebabkan proses pembusukan ikan lebih cepat terjadi. Untukmencegah hal tersebut maka penelitian ini bertujuan untuk membuat kotak Mendesain kotak pendingin ikan sistem delivery berdasarkan fungsi utama yakni memuat produk ikan segar yang mampu bertahan pada suhu rendah yaitu lebih kecil dari 5ᵒ C. Suhu ruang penyimpanan pada uji coba pertama tanpa ikan selama 120 menit mencapai 11,5 °C, pada uji coba kedua 12,1 °C dan pada uji coba ketiga 15,0°C. Perbedaan suhu tersebut disebabkan oleh perbedaan suhu lingkungan selama pelaksanaan uji coba. Suhu lingkungan pada uji coba pertama adalah 28 °C, uji coba kedua 30 °C dan uji coba ketiga 32°C. Suhu lingkungan berpengaruh terhadap banyaknya panas yang masuk dari lingkungan menuju ruang penyimpanan ikan. Semakin tinggi suhu lingkungan menyebabkan semakin besar jumlah panas yang masuk sehingga suhu ruang penyimpanan yang dapat dicapai juga semakin tinggi. Hal ini yang menyebabkan suhu ruang penyimpanan pada uji coba ketiga paling tinggi.Hasil penelitian menunjukkan bahwa peti ikan berpendingin dapat mempertahankan suhu ikan di bawah 3 °C pada saat dilakukan penjualan ikan secara eceran dibandingkan pengunaan sterofoam tanpa alat pendingin. Suhu kotak pada uji coba dalam kondisi kosong selama 120 menit mencapai 11,1 – 15,0 °C.Penambahan kipas di bagian dalam kotak insulasi dan penggunaan power supply dapat mempercepat dan memaksimalkan proses pendinginan.Kata Kunci : Kotak pendingin,ikan,suhu, peltier

PENGARUH PENGUJIAN KEKERASAN DAN PENGUJIAN TEKAN TERHADAP KARAKTERISTIK GAYA TUMBUKAN PADA CANGKANG KENARI (CANARIUM INDICUM L) Loppies, Leslie S.; Patty, Alexander A.; Pelasula, Berthy; Lekatompessy, Roy R.; Nanulaitta, Nevada Mario
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1227

Kenari (Canarium indicum L) belongs to the Burseraceae family and is one of the endemic fruits in Indonesia, especially Maluku. Walnuts have a tough shell that encloses the flesh, to get the flesh without damaging it careful effort is needed. This study investigated the strength of walnut shells through mechanical testing to determine the amount of impact force needed to break the walnut shell. The mechanical test carried out is a compression test and impact test. The values of these tests assist in determining, measuring, and analyzing the minimum and maximum force loads required to crack a walnut shell. Tests were carried out on walnut shells from 6 different villages on Ambon Island and Saparua Island. The impact test where the highest impact absorption energy value was found in walnut shells from Booi Village, namely 23.18 J/mm2, and the lowest in walnut shells from Morela Village, 22.40 J/mm2. In the compression test where the lowest value was found in walnut shells from Morela village with a value of 3.61 MPa while the highest value was found in walnut shells from Booi village, namely 5.24 MPa. Whereas the minimum compressive force is 16.22 kgf/mm2 and the maximum compressive force is 17.61 kgf/mm2.

PEMODELAN GEOLOGI BAWAH PERMUKAAN UNTUK MENGHITUNG CADANGAN HIDROKARBON FORMASI TENSLEEP BAGIAN ATAS MENGGUNAKAN METODE VOLUMETRIK PADA LAPANGAN TEAPOT DOME,WYOMING, U.S.A Dessy Natalia Renwarin; Leslie.S. Loppies
Journal Mechanical Engineering Vol. 1 No. 1 (2023): APRIL 2023
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v1i1.1620

One of the evaluations of work that is widely carried out in a petroleum industry is the estimate of oil and gas reserves that can be taken in a reservoir. The estimated oil and gas reserves are part of the business activities of an oil company which includes the estimated income obtained from the production and sale of oil and gas reserves. While the reserve itself can be interpreted as the amount (volume) of oil and or gas in the reservoir that has been found It is known that the estimation and calculation of hydrocarbon reserves is very important, so this causes many oil companies to try to find the most appropriate method to obtain accurate results, thus bringing huge profits to an oil and gas company. In this paper, the study was conducted using a volumetric method to calculate hydrocarbon reserves in the upper Tensleep formation at the Teapot Dome Field. The determination of hydrocarbon fluid contact in the top Tensleep formation is assumed to have only oil-water contact (OWC) found at a depth of -5452 SSTVD where fluid in the form of oil is obtained so that the equation used in this study is the original oil in place (OOIP) equation and uses the input parameter values from petrophysical analysis in previous studies. The parameter values used include porosity values of 7.4%, water saturation values of 53.37%, net to gross values of 0.39. 4. The results of the study showed that the estimated reserves that can be calculated in the Top Tensleep formation of the Teapot Dome field have a pore volume of 232.49 MMRB. From these results, the original oil in place (OOIP) value was obtained at 121.42 STB.Keywords: Subsurface Modeling, Hydrocarbon Reserves, Tensleep Formation, OOIP, Volumetric, Teapot Dome.

PENGARUH PERLAKUAN ALKALI TERHADAP SIFAT TARIK SERAT EMPULUR SAGU UNTUK APLIKASI PEMBUATAN KOMPOSIT BERBASIS SERAT ALAM Graciadiana. I. Huka; Leslie. S. Loppies
Journal Mechanical Engineering Vol. 1 No. 1 (2023): APRIL 2023
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v1i1.1621

This study aimed to observe the changes in tensile properties of sago pith fiber which has been given the alkali treatment 5% NaOH with the variation of time 0,30,90,120,150,180,210,240 minutes. The object of this study is sago pith fiber. These fibers are cleaned with 100 mm length, the fibers were treated alkali 5% NaOH and tested by using IMADA tensile machine test.The final results this study is shown in relationship between tensile propesties (strength, modulus and strain) versus time of alkali treatment. Based on the test results were obtained the maximum tensile strength of lontar midrib fiber at alkali treatment 240 minutes (4 hours) and maximum modulus of elasticity in the alkali treatment 240 minutes (4 hours). Tensile strength and modulus elastistacity of treated sago pith fiber in comparison with pure sago pith fibers have increased tensile strength and modulus of elasticity is highly significant to 273,15 % dan 122,7%.Keywords : Mechanical Property, sago pith fibers, composite

REDESIGN SUMUR SUCKER ROD PUMP MENGGUNAKAN METODE ELECTRICAL SUBMERSIBLE PUMP SEBAGAI ARTIFICIAL LIFT PADA LAPANGAN Y Nursitna F. R. Mahmud; Kristofol Waas; Leslie. S. Loppies
Journal Mechanical Engineering Vol. 1 No. 1 (2023): APRIL 2023
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v1i1.1625

Natural resources found in the pores of rocks and beneath the earth's surface include oil and gas. In the oil and gas industry, when initial conditions are stable, the pressure within the reservoir can naturally push the fluid to surface. Once a well is drilled through the reservoir and put into production, there is a pressure drop around the borehole, prompting the use of artificial lift methods. Artificial lift is used to assist process of lifting fluid from the bottom of the well to surface. Well X was no longer able to produce naturally and had an SRP. There is a decline in production during production process. Gross up program can be conducted to prevent the decline in production capacity and oil production rate from the well. Gross up is a program to increase the gross production rate by converting SRP to ESP. The objective is to calculate the evaluation of the artificial lift installed in the form of an ESP. The calculations performed include oil reserves, well X performance, using pipesim software with tubing ID, operating frequency, and stage parameters. The conclusion of this research is that the installed artificial lift, namely the ESP pump, is optimal based on pump performance. Keywords: Artificial lift Method; ID Tubing; Stages; Operating Frequency

Pengaruh Variasi Arus Pengelasan Gas Metal Arc Welding (GWAM) Terhadap Sifat Mekanis Pada Sifat Seamless Gracia Irene Huka; Leslie. S. Loppies; Josef Matheus; Auliana Diah Wilujeng; Abdul Hamid
Journal Mechanical Engineering Vol. 1 No. 3 (2023): Desember
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v1i3.2116

GMAW welding is a metal joining process with a melting process with the addition of a coil of wire in the form of electrodes and protective gas. Seamlees pipe, also known as seamless pipe, is an iron pipe without a connection. This study aims to produce data from the results of bending and impact testing on seamlees pipes by varying the welding current with a current of 21.5 volts, 22.5 volts, and 23.5 volts in GMAW welding. After the seamless pipe is welded, impact and bending tests are carried out on the seamlees pipe. From the bending/bending strength test, the highest flexural strength occurred at a current of 21.5 and 22.5 volts, while the lowest flexural strength occurred at a current of 23.5 volts. From the impact test, the highest strength occurred at 21.5 and 22.5 volts and the lowest was at 23.5 volts. Keywords: Seamlees pipe, GMAW welder, Bending Strength, Impact Strength.

ANALISIA PENENTUAN UMUR PAKAI TANGKI TIMBUN 01-50 TON DI PT.PLN (PERSERO) UIW MALUKU DAN MALUKU UTARA KANTOR PELAYANAN KIANDARAT Gahsar Rumaday; Leslie. S. Loppies; Nevada J. M. Nanulaitta
Journal Mechanical Engineering Vol. 2 No. 1 (2024): April
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v2i1.2580

In the oil and gas industry, tanks play a crucial role as storage containers for fluids and fuel oil products, both in the form of volatile, pressurized, and flammable fluids. In addition, tanks are not only found in the oil and gas industry, but also in other sectors such as power plants. In the long period of use, the tank may be damaged due to several factors, including plate depletion caused by cor rosion. This problem can affect the integrity of the tank so that an inspection of the condition of the tank needs to be carried out. The inspection of tank plate thickness and corrosion rate was carried out using the Non-Destructive Examination (NDE) method with the Benetech GM100 Ultrasonic Thickness Gaugge tool. This inspection is urgently needed to determine the remaining life of the tank with reference to the API 653 and API 575 standards. The method used started from literature studies in various references and previous research, after which field data collection was then analyzed in accordance with the findings and applicable provisions. Based on the results of measurements in April 2024, the condition of the 01-50 ton tank is still in good condition, marked by the thickness of course 1-3 is still above the minimum limit that has been determined. For Course 1 Tact is 4.3 mm and Tmin is 0.4064 mm with a corrosion rate of 0.0875 mm/year and a remaining life of 44.49 years. For Course 2 Tact is 4.1 mm and Tmin is 0.2032 mm with a corrosion rate of 0.1125 mm/year and a remaining life of 24.63 years. For Course 3 Tact of 3.9 mm and Tmin of 0.1016 mm with a corrosion rate of 0.1375 mm/year and a remaining life of 28.35 years. It can be concluded that the condition of the 01-50 Ton tank is still in good condition. Keywords: (tank, power plant, plate thickness, corrosion rate, remaining tank life)

ANALISIA PENENTUAN UMUR PAKAI TANGKI TIMBUN 01-50 TON DI PT.PLN (PERSERO) UIW MALUKU DAN MALUKU UTARA KANTOR PELAYANAN KIANDARAT Gahsar Rumaday; Leslie. S. Loppies; Nevada J. M. Nanulaitta
Journal Mechanical Engineering Vol. 2 No. 1 (2024): April
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v2i1.2580

In the oil and gas industry, tanks play a crucial role as storage containers for fluids and fuel oil products, both in the form of volatile, pressurized, and flammable fluids. In addition, tanks are not only found in the oil and gas industry, but also in other sectors such as power plants. In the long period of use, the tank may be damaged due to several factors, including plate depletion caused by cor rosion. This problem can affect the integrity of the tank so that an inspection of the condition of the tank needs to be carried out. The inspection of tank plate thickness and corrosion rate was carried out using the Non-Destructive Examination (NDE) method with the Benetech GM100 Ultrasonic Thickness Gaugge tool. This inspection is urgently needed to determine the remaining life of the tank with reference to the API 653 and API 575 standards. The method used started from literature studies in various references and previous research, after which field data collection was then analyzed in accordance with the findings and applicable provisions. Based on the results of measurements in April 2024, the condition of the 01-50 ton tank is still in good condition, marked by the thickness of course 1-3 is still above the minimum limit that has been determined. For Course 1 Tact is 4.3 mm and Tmin is 0.4064 mm with a corrosion rate of 0.0875 mm/year and a remaining life of 44.49 years. For Course 2 Tact is 4.1 mm and Tmin is 0.2032 mm with a corrosion rate of 0.1125 mm/year and a remaining life of 24.63 years. For Course 3 Tact of 3.9 mm and Tmin of 0.1016 mm with a corrosion rate of 0.1375 mm/year and a remaining life of 28.35 years. It can be concluded that the condition of the 01-50 Ton tank is still in good condition. Keywords: (tank, power plant, plate thickness, corrosion rate, remaining tank life)

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