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All Journal eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia
Ma’sum, Zuhdi
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Energy Engineering Industrial & Manufacturing Engineering

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Perbandingan Kerja Antar Bahan Pengisi pada Menara Cooling Tower dengan Sistem Destilasi Uap Ayyam, Khoirul; Sari, Mila Puspita; Ma’sum, Zuhdi; P., Wahyu Diah
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 2, No 1 (2018)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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Abstract

ABSTRAK Prinsip kerja Menara Pendingin adalah penukar panas yang berfungsi untuk mengurangi suhu aliran air yang dibawa dari kondensor dengan mengekstraksi panas dari air. Mekanisme penurunan suhu dilakukan dengan kontak langsung dengan udara sehingga sebagian kecil air menguap dan suhu cairan turun. Tujuan penelitian ini adalah untuk mengetahui rasio kerja antara bahan pengisi di Tower Cooling Tower untuk menurunkan suhu air pendingin pada sistem destilasi steam. Pengisi pada pengisi menggunakan pipa PVC dan kaleng bekas. Tes ini dilakukan 5 kali percobaan dan setiap percobaan suhu tercatat sebanyak 5 kali pengukuran. Pengukuran suhu dicatat mulai dari destilat tetes pertama. Ketika proses sirkulasi air di menara Cooling Tower telah berlangsung maka suhu diukur dan dicatat terus menerus setiap 30 menit. Hasilnya menunjukkan bahwa penggunaan filler kaleng lebih efektif pada temperatur 260C hingga 380C. Kata kunci: Menara Pendingin, menara pendingin pengisi, filler PVC, filler kaleng bekas . ABSTRACT Working principle Cooling Tower is a heat exchanger that serves to reduce the temperature of the water flow carried from the condenser by extracting the heat from the water. The temperature drop mechanism is carried out by direct contact with air so that a small portion of the water evaporates and the liquid temperature drops. The purpose of this research is to know the working ratio between filler material in tower Cooling Tower to lower cooling water temperature in steam distillation system. Fillers on filler using PVC pipes and used tins. This test was performed 5 times experiment and each experiment of temperature was recorded as much as 5 times the measurement. Temperature measurements are recorded starting from the first drip destilat. When the process of water circulation in the tower Cooling Tower has lasted then the temperature is measured and recorded continuously every 30 minutes. The results showed that the use of canned filler was more effective at temperatures of 260C up to 380C. Keywords : Cooling Tower, filler cooling tower, filler PVC, filler used tins
VERIFIKASI METODE UJI TOTAL REDUCING SUGAR ICUMSA GS4/3-7 (2011) Lestari, Puji Pangestu; Ma'sum, Zuhdi
eUREKA : Jurnal Penelitian Teknik Sipil dan Teknik Kimia Vol 1, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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Abstract

Based on ISO / IEC 17025: 2008 Clause 5.4 states that an accredited laboratory should select the appropriate method, already published in the international standard, regional or national, or reputable technical organizations or from the text or the relevant scientific journals. Laboratories should ensure that can operate standard methods before introducing the tests is to verify the standard method. As an accredited laboratory, the LP-P3GI need to perform verification testing methods to determine whether the total reducing sugar method ICUMSA GS4 / 3-7 (2011) can be applied or applied in LP-P3GI the results are valid and reliable, so that the results of the verification the method can be used as a quality assurance testing. In the verification method, a performance that will be tested is the precision (austerity). Precision is the degree of accuracy the value of some of the results of repeat testing. Precision test can be done by performing intra repeatability and reproducibility. The results of precision test repeatability value CV = 0.75% < 2/3 CV Horwitz = 1.44%, while the intra-precision test reproducibility CV = 1.11%
Co-Authors Ayyam, Khoirul Lestari, Puji Pangestu Mila Puspita Sari, Mila Puspita P., Wahyu Diah