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INDONESIA
Jurnal MEKANIKAL
Published by Universitas Tadulako
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Mechanical Engineering
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol 1, No 1 (2010)" : 5 Documents clear
EFEK TEMPERATUR PIPA KAPILER TERHADAP KINERJA MESIN PENDINGIN Anwar, Khairil; Arif, Effendy; Piarah, Wahyu H.
Jurnal MEKANIKAL Vol 1, No 1 (2010)
Publisher : Jurnal MEKANIKAL

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Abstract

The aims of this research are to obtain (1) the effect of the capillary tube temperature on the refrigerant condition and the refrigerating capacity in the refrigeration system and (2) the optimum temperature condition for obtain better system performance.This research was done in the Refrigeration System Laboratory at Tadulako University in Palu. The method applied in this research is an experimental method, with various temperature at capillary tube. Various temperature is obtained by placing capillary tube in freezer from other refrigeration system (refrigerator), through arrangement of thermostat.The result of this research indicates that decreasing cooling temperature of capillary tube causes refrigerating capacity and Coefficient of Performance of refrigeration system increases. Optimum performance of this examination during 30 minutes, obtained on the lowest thermostat temperature position that is –20°C ( position 7) with Coefficient of Performance (COP) of 2.71  
RANCANG BANGUN KINCIR ANGIN SAVONIUS UNTUK MEMBANGKITKAN ENERGI LISTRIK SKALA KECIL Patabang, Daud
Jurnal MEKANIKAL Vol 1, No 1 (2010)
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Abstract

The aim of this paper is to design and construct a Savonius windmill generating electrical energy in small scale. For generating power 100 watts at wind velocity 4 m/s are  find out dimensions of rotor 0.72 m of wide  and 0.8 m of height. Rotor is made in two series. The result of experiment at power and wind velocity planning are 51.8% of efficiency and 45.864 watts of power generating
SIFAT MAMPU BASAH (WETTABILTY) SERAT BATANG MELINJO (GNETUM GNEMON) SEBAGAI PENGUAT KOMPOSIT MATRIKS EPOXY-RESIN Chandrabakty, Sri
Jurnal MEKANIKAL Vol 1, No 1 (2010)
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Abstract

This study aims to knowing the influence of surface treatment of fibers t wettability and adhesion ability melinjo bast fiber with epoxy-resin matrix. Wettability  had affected on mechanical properties of fiber reinforced composite. The research process was begun with providing treatment to the melinjo fiber surface, which is boiled with pure water and NaOH 5%  each for 60, 120 and 180 minutes. Contact angle specimen test conducted by dripping droplets of matrix on a single fiber, then the contact angle that occurs is measured using Image Pro Analyzer software (IPWin) through photographs taken by using optical microscope. The results showed that the largest  average of contact angle is  untreated fiber (42.37°) and the lowest is  media treatment of NaOH 5% (33.14°).
PENENTUAN SIFAT MEKANIS SERAT SABUT KELAPA Bakri, Bakri
Jurnal MEKANIKAL Vol 1, No 1 (2010)
Publisher : Jurnal MEKANIKAL

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Abstract

Coir fibres are obtained from coconut husk.  In application of composite materials, coir fibres  are  influenced  by  mechanial  properties.    This  study  aims  to  characterize  the mechanical properties of coir fibres. To characterize mechanial properties of coir fibres, variation of gauge length of fibres was conducted. The result showed that variability of cross  setional  areas  influenced  mechanical  properies  and  that  the  Young’s  modulus, breaking stress and breaking strain can be determined. 
STUDI KAITAN PARAMETER PENGEREMAN DENGAN BEBAN DINAMIS PADA KENDARAAN Mustofa, Mustofa; Naharuddin, Naharuddin; Basri, Basri
Jurnal MEKANIKAL Vol 1, No 1 (2010)
Publisher : Jurnal MEKANIKAL

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Abstract

This research aims to study influence of parameters of brakes components and dynamic weight on vehicle. Car of Suzuki Katana is taken as sample of a braking study. Data was procured in the mechanical engineering laboratory of Tadulako University and in the Duty Communication of District of Kayumalue in North Palu. Result of calculation indicates that oil pressure put on the brakes pw (kg/cm2), tread force of a brake pedal Q (kg) and dynamic weight of vehicle (kg) both front wheels and rear wheels weights are parameters which are significant in studying the brakes system.

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