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Erizal Erizal
Universitas Prof. Dr. Hazairin, SH
Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Analisa Injector Gas Pada Flooding Di Dalam Aliran Gas Berdiameter Kecil Erizal Erizal
MAJALAH TEKNIK SIMES Vol 9 No 2 (2015): Majalah Teknik Simes
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

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Abstract

Have been [done/conducted] [by] research about gas injector position influence [at] contrary liquid gas stream transition [of] direction in vertical channel ( flooding). Channel diameter 25,4 mm with [job/activity] fluid consist of air and water. Dilution injector in the form of wall have pore [to] residing in channel tabletop and gas injektdr in form of berdiameger channel 10 mm. First position, gas ijektor attached in the middle of channel underside ( hypodermic by aksial) and second position attached [by] [in] undercarriage channel wall ( hypodermic by radial). Result of research indicate that gas injector position [do] not so have an effect on to flooding mechanism but very having an effect on to its critical velocity. [At] is second [of] this position [of] flooding [is] always started from under with the existence of stricture [of] channel by dilution film, while location [of] gas injector [in] wall will quicken flooding march of events. Result of measurement [of] speed [of] criticism compared to result from Wallis and Dukler. [is] same Result only go into effect [at] area speed [of] dilution / certain gas.
Uji Kekerasan Pada Pegas Daun Mobil Pick-up. Suhu Pemanasan 8000c Di Quenching Air Laut Erizal Erizal
MAJALAH TEKNIK SIMES Vol 11 No 1 (2017): Majalah Teknik Simes
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

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Heat treatment process on low carbon steel is very useful for getting qualified low carbon steel that has physical properties such as electrical conductivity, microstructure, density and better mechanical properties especially in term of hardness, elasticity of steel caracter.This process is carried out at 800 °C for 30 minutes, then cooled with sea water as cooling medium. The result showed that the hardness value of speciment without treatment is 38,571 HRC, whereas hardness value of speciment with treatment is 61 HRC. This research can be concluded that quenching process can increase the hardness value
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