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All Journal Journal of Mechanical Science and Engineering AUSTENIT Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Indonesian Journal of Engineering and Science (IJES) SRIWIJAYA JOURNAL OF ENVIRONMENT Jurnal Pelita Sriwijaya
Riman Sipahutar
Lecturer Of Magister Program Mechanical Engineering, Sriwijaya University
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Control & Systems Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Other

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Journal : Journal of Mechanical Science and Engineering

 1 
Analysis Of A Compared Temperature Using Capillary Tube Different Measurement Length At Room 3 X 4 M2 Helping AC Portable Rendy Wiseta; Riman Sipahutar; Muhammad Faizal
Journal of Mechanical Science and Engineering Vol 2, No 2 (2015): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

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Abstract

At this time along with the times a lot of problems that occur in this world like the Earth's warming temperatures globally . Human needs of the air conditioning apparatus has become a staple in our daily lives . There is also a saying that the Air Conditioner ( AC ) has become a mandatory item installed in homes without air conditioning because of the environment around the home became more sultry and hot when we were in the neighborhood . In developments at this time have many types of AC marketed like Split AC , AC Windows , Central air conditioning and so on . A capillary tube expansion device or lowering pressure so cheap that researchers sought to examine the ratio of capillary -sized 33 , 54 , and 76 cm to the temperature of an air conditioner Portable. Results comparative study of the capillary tube length obtained the lowest total heat value is 9086 , 6925 Btu / Hr and the highest is 15144.4875 Btu / Hr .
Analisys of Effect of Outside Air Speed To Air Humidity and Refrigerator Coefficient of Performance Riman Sipahutar; Ferry Irawan
Journal of Mechanical Science and Engineering Vol 3, No 1 (2016): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

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Abstract

Air conditioning is essential for most humans and are associated with human thermal comfort. At conditioned room where the condition can occur outside air (atmosphere) into the room. Althouht the author was interested in researching this influx of outside air. The aims of this research would be able to examine the effect of the entry of outside air to the room air humidity and refrigerator coefficient of performance. The method used is to perform laboratory-scale experiment with conditioned room with air conditioning or no air conditioning which then incorporate outside air into the room. From this experiment would get experimental result, the result of theoretical calculation, and the result of calculation by using the simulator program. By entering the outside air was obtained that the outside air increases the humidity in the room and affect refrigerator coefficient of performance. The experimental results showed that the average maximum condition occurs at a speed of 1 m/s and at 20 minutes. It can be concluded that the outside air entering the room using the air conditioner would improve indoor air humidity and increase the cooling load means affect refrigerator coefficient of performance. And in a room without air conditioner caused indoor air humidity getting closer to the comfort zone.
THE EFFECT OF STEERING BLADE ANGLES OF HELICAL TURBINE FOR POWER GENERATION IN IRIGATION DAM OF Riman Sipahutar; Niharman Niharman
Journal of Mechanical Science and Engineering Vol 2, No 1 (2015): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

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Abstract

The Gorlov vertical axis water turbine is suitable to harness the water flow in the creation of kinetic energy for the irigation dam. The turbine tested in this study was ther Gorlov helical turbine blade with steering angles of 00, 300, 450 and 600 turbine diameter (d) of 0.30 m, height (h) of 0.50 m and the NACA 0020 profile. The testing was conducted on the irigation dam of Seluma Bengkulu. The water flow showed in the velocity (Uair) of  0.85 m / s and a round (n) of 110 rpm. The results were achieved by setting the blades in steering torque coefficient (Ct) of 0.309 are turbine efficiency (ηt) of 28.5% and a power turbine (Pt) of 13.699 Watts.
Co-Authors Agung Mataram Amir Arifin Amir Arifin Astuti - Dewi Puspitasari Diah K. Pratiwi Diah Kusuma Pratiwi Eka Utami, Nurhabibah Paramitha Ellyanie Ellyanie Firmansah, Hari Gunawan Gunawan Gustini, Gustini Hendri Chandra Herlin Sumarna HIDAYATI, BAITI Irwin Bizzy Irwin Bizzy Kaprawi Kaprawi Maemonah, Maemonah Marwani Marwani, Marwani Muhammad Faizal Muhammad Haviz Muhammad Taufik Toha Niharman Niharman Oki Alfernando Prakoso, Akbar Teguh Pratiwi, Diah K. Raden Mohamad Herdian Bhakti Rendy Wiseta Saputra, M. A. Ade Utama Putra, Risky Utami, Nurhabibah Paramitha Eka