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Priyono Sutikno
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Mechanical Engineering

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SIMULASI PEMBENTUKAN KAVITI DAN LONJAKAN HEAD AKIBAT ALIRAN TRANSIEN PADA SISTEM PEMIPAAN AIR PENDINGIN KONDENSOR PUSAT PEMBANGKIT ENERGI Priyono Sutikno
Mesin Vol. 7 No. 1&2 (1988)
Publisher : Mesin

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Abstract

Pemodelan numerik aliran transien pada instalasi kondensor meliputi pembentukan kaviti, kenaikan head akibat pecahnya kaviti gas, kecepatan rambat gelombang yang bervariasi sebagai fungsi dari kandungan gas dalam cairan. Penggunaan model numerik ini, dapat meramalkan daerah pembentukan kaviti gas dan lonjakan head. Hasil simulasi numerik dari kejadian transien. akibat pompa kehilangan daya sesaat yang menunjukan bahwa kayiti gas terbentuk tidak hanya pada daerah yang paling tinggi dari instalasi pendingin kondensor Pusat Pembangkit Energi.
PERANCANGAN, PEMBUATAN DAN PENGUJIAN SISTEM KENDALI TANGKI GANDA UNTUK ALAT PERAGA KULIAH SISTEM KENDALI Zainal Abidin; Is Maryanto; Priyono Sutikno
Mesin Vol. 11 No. 3 (1996)
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This paper describes the motivation and design criteria for the development of a couple-tank control system which is intended to be used as a demonstration apparatus for a lecture course on Introduction to Control Systems. The work also demonstrates the performances of the controlled system in tracking various types of command inputs, Control strategies implemented to the system are On-Off control, Proportional control and Proportional-Integral control. Influences of dynamic interaction between channels on the performance degradation are also shown in this work. Except as a control system design example, this work is expected to be useful to mechanical engineering lecturers giving courses on Introduction to Control Systems, particularly to those in private universities.
PEMODELAN DINAMIK DAN VALIDASI MODEL DARI SISTEM KENDALI TANGKI GANDA Zainal Abidin; Priyono Sutikno; Is Maryanto; Ilham B Santoso
Mesin Vol. 12 No. 1 (1997)
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This paper describes dynamic modeling and model validation of a couple-tank control system which consist of a couple-tank, two motor-and-pumps, two electric-motor drivers, and two water-level sensors. Initially, dynamic modeling of the couple-tank was derived analytically. This derivation produced several parameters whose values were unknown. Experiments were then performed in order to obtain the values of those parameters. In addition to the couple-tank, other components were also modeled statically. Once all components of the couple-tank controlled system have been modeled, model validation of the whole system can then be performed.
PEMBUATAN DAN PENGUJIAN ANEMOMETER KAWAT PANAS TEMPERATUR KONSTAN UNTUK PENGUKURAN KECEPATAN UDARA PADA ALIRAN SWIRLING I N Diasta; Arianto Santoso; Priyono Sutikno; Uyung G. S Dinata
Mesin Vol. 13 No. 2 (1998)
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To overcome the difficulties in calibrating a hot wire anemometer the equation E2 = A+BU0.45, as the reference equation in making hot wire anemometer, was changed to U = (1/ B (E2-A))2.22 to produce linear calibration curve. To realize this idea then an electronic circuit was designed with IC AD 534 and AD 538 as the main components. IThe hot-wire anemometer was made based upon the above principles then used to measure velocity components of swirling flow, which has two components of velocity, i.e.: axial (normal) velocity and tangential velocity. In measurement of swirling flow the probe-X was used to measure axial velocity and tangential velocity simultaneously. Magnitude and direction of swirling flow were determined from those velocity components.
POMPA SENTRIFUGAL SEBAGAI TURBIN DENGAN PERFORMANSI HASIL PENGUJIAN LABORATORIUM UNTUK PEMBANGKIT MIKRO HIDRO Priyono Sutikno
Mesin Vol. 18 No. 2 (2003)
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Pump as Turbine (PaT) tested from mixed flow pump type with 250 mm bore diameter, and impeller tip has a minimum modification by rounded the blade, which could improve the efficiency of 2% to 6%. The modification is done by rounded the impeller tip with 2 mm radius. Tested Pump as Turbine at 1000 rpm has an efficiency about 82% and 10 kW power output. The best power produced by 250 mm bore Pump as Turbine is 25 kW at the 75% efficiency. The 15 meters head may have the runaway speed of the Pump as Turbine on asymptotic level at 2500 rpm. The pump as turbine could utilized as Micro Hydro Power driver in the low cost, compare with Francis turbine design and development cost, which is mass production of the pumps and abundant at the market.
Co-Authors Arianto Santoso I N Diasta Ilham B Santoso Is Maryanto Uyung Gatot Syafrawi Dinata Zainal Abidin