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All Journal SMARTek MEKTEK Foristek Jurnal MEKANIKAL Journal of Mechanical Engineering Science and Technology Abditani : Jurnal Pengabdian Masyarakat JTAM ROTARY Jurnal Abmas Negeri (JAGRI)
Khairil Anwar
Program Studi Teknik Mesin, Fakultas Teknik, Universitas Tadulako, Palu, Indonesia
Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Journal : MEKTEK

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EFEKTIVITAS ALAT PENUKAR KALOR PADA SISTEM PENDINGIN GENERATOR PLTA Anwar, Khairil
MEKTEK Vol 13, No 3 (2011)
Publisher : MEKTEK

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Abstract

This paper discuss about effectiveness of heat exchanger in the cooling system of hydropower generator.Data obtained from generator cooled PLTA at Sulewana, Poso. The type of heat exchanger is compact heatexchanger, with dimensions: : SL=0.021 m, SD=0.029 m, ST=0.04 m, L=1.5 m, DTubing=0.019m. The resultshows that air temperature continues to decrease after passing through the cooler. Air temperature duringthe first pass through to the cooler is 75°C and continues to decline as a generator that drives the movementof air through the cooler, and the cooling water continues to rise from the initial temperature of 28oC to34oC. While the effectiveness of heat exchanger, has increase due to deacreasing air temperature circulatedinside the generator by 37 %
ANALISIS PERPINDAHAN PANAS PADA GRATE COOLER INDUSTRI SEMEN Anwar, Khairil
MEKTEK Vol 13, No 2 (2011)
Publisher : MEKTEK

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Abstract

This research aimed to find out heat transfer rate between cooling air supply and clinker in grate cooler ofcement industry. The method used field survey with two datas. Primary data by direct measure in researchobject and others from control room. Then for the secondary data, we got from manual book of company.Grate cooler was divided into 3 sections, and the analysis performed for each section based on the principleof heat transfer through a porous medium to obtain the heat transfer coefficient, and the rate of heat transfer.Heat transfer of clinker to the cooling air was analyzed by convection and radiation. The result shows thatthe highest convection heat transfer occurs in section 2, while the highest radiation heat transfer occurs insection 1. Total heat transfer in the grate cooler is 95185.936 kW. This result will be smaller than thethermodynamic analysis, with calculation difference of 2%.
Co-Authors Anggara, Moch Briand Astak, Muh Anjas Bakri Bakri Denny Widhiyanuriyawan Effendy Arif Heriyadi, Heriyadi Hermanto, Muhammad Wahyu Kennedy, Kennedy Leandis Leandis M Rusdi Mardjudo, Ahsan Muchsin Muchsin Muhammad Din Muhammad Sadat Hamzah Muhammad Syaiful Fadly Naharuddin Naharuddin Ramang Magga Rezki, Akbar Rustan Hatib Soso, Ardi Yefta Sri Chandrabakty Wahyu H. Piarah Wardoyo Wardoyo Yuli Asmi Rahman