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All Journal Jurnal Energi Dan Manufaktur International Journal Science and Technology (IJST)
Rr. Sri Poernomo Sari
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering

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Koefisien Perpindahan Panas dan Kerugian Jatuh Tekanan Aliran di Dalam Pipa Rr. Sri Poernomo Sari; T. Aswinsyah Hassan; D. Saputra; R. Malau
Jurnal Energi Dan Manufaktur Vol 7 No 2 (2014): Oktober 2014
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (87.164 KB)

Abstract

Perpindahan panas dan kerugian jatuh tekanan di dalam sistem perpipaan sangat pentingdiketahui untuk menentukan kapasitas tenaga pompa dalam penggunaan di dunia industri. Pipabulat bentuk lilitan spiral terbuat dari tembaga dialiri oleh fluida panas didalamnya, dimasukkan kedalam bejana dengan temperatur air konstan pada 0°C. Tujuan penelitian mengukur nilai koefisienperpindahan panas dan kerugian jatuh tekanan pada lilitan pipa. Variasi temperatur air panas danvariasi kecepatan aliran di dalam pipa sebagai variabel pengambilan data. Nilai variasi koefisienperpindahan panas dan kerugian jatuh tekanan menentukan unjuk kerja yang optimal dari sistemini.Kata kunci: koefisien perpindahan panas, kerugian jatuh tekanan, pipa lilitan spiralHeat transfer and pressure drop losses in the piping system is very important to be known for thedetermination of the capacity of pump power in use in the industrialized world. Round pipe with aspiral coil made of copper fed by hot fluid in it is introduced into a vessel with a constant watertemperature at 0 ° C. The purpose of the research is to measure the coefficient of heat transferand pressure drop losses in the winding pipe. The variation temperature of Hot water and variationsin flow velocity in the pipe as variable data retrieval. The value of the variation coefficient of heattransfer and pressure drop loss determine optimal performance of this system.Keywords: heat transfer coefficient, pressure drop losses, spiral coil pipe
ANALYSIS OF TILT ANGLE AND BATTERY CHARGING TIME OF ELECTRICAL POWER REQUIREMENTS FOR WOOD CUTTING EQUIPMENT PURPOSES Sandy Suryady; RR. Sri Poernomo Sari
International Journal Science and Technology Vol. 1 No. 2 (2022): July: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (392.996 KB) | DOI: 10.56127/ijst.v1i2.124

Abstract

Solar panels are a tool that serves to convert sunlight into electrical voltage, sunlight itself contained energy in the form of photons. In this photon hit the surface of the electron solar cell panel that will be excited and cause electricity. This is known as the photoelectric principle. Every day the earth rotates on its axis while orbiting along the ellipse. Where along the plane of the earth's orbit is called the ecliptic plane so that it affects the geothermal received. So in this study analyzed the angle of the panel with the battery charging time needed on wood cutting equipment. From the results of testing and observation of the most effective tilt angle and with the highest power is an angle of 30°. Where the intensity of sunlight received by solar panels is very influential that determines the amount of electrical output or power generated by solar panels. Due to erratic weather and average power generated during 7 hours of measurement and observation produces 55.29 Watts then the power passed on the scc (controller) for the battery charging time for 7 hours then (7 hours × 55.29 Watt = 387.03 Watts / h) after being calculated to get a total load of 328.98 Wh and the length of battery charging time at full condition (full) is 1.64 Hours (h) with the slope angle sample taken is an angle of 30° with power highest.
Co-Authors D. Saputra R. Malau Sandy Suryady T. Aswinsyah Hassan