Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Jurnal Agrotek Indonesia
Ismi Ari Fitria
Universitas Singaperbangsa Karawang
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Industrial & Manufacturing Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pengaruh Pemberian Kombinasi Pupuk Organik dan Anorganik Terhadap Keragaan Pertumbuhan dan Tanaman Jahe Merah (Zingiber Officinale Rubrum.) di Kecamatan Majalaya Kabupaten Karawang Wagiono; Dessy Agustina Sari; Sabrina Alfiansyahri Miledhiya; Ismi Ari Fitria; Kristin Valentina Sidabutar; Muhammad Ikhsan Kamil; Al Ghifari Marendra Fadzrin
Jurnal Agrotek Indonesia (Indonesian Journal of Agrotech) Vol 5 No 2 (2020): Jurnal Agrotek Indonesia (Indonesian Journal of Agrotech)
Publisher : Faculty of Agriculture University of Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33661/jai.v5i2.4349

Abstract

This research aim is to provide information about impact of combination manure and inorganic fertilizer application to growth and yields performance of red ginger plants cultivated in pandemic Covid-19 period. The research was conducted in Majalaya sub-district of Karawang District, from March to October 2020. The research used experiment method and Randomized Block Design (RDB) as it experimental design which was arranged single factor, that are combination of manure and fertilizer (4 treatment) each repeated 6 times. The best growth in vegetative phase of red ginger crop aged 6 months after planting is P1 (combination of 0,5 kg/polybag treatment of manure, 7,5 g/polybag treatment Urea, 5,0 g/polybag treatment of KCl, and 5,0 g/polybag treatment of SP36) but not significantto P4 treatment (combination of 1,0 kg/polybag treatment of manure, 3,75 g/polybag treatment Urea, 2,5 g/polybag treatment of KCl, and 2,5 g/polybag treatment of SP36) fo reach plant height parameters of 39.2 cm and 37,9 cm, and each stem diameter of 24 mm and 23 mm. Treatment of P1 yielded the highest fresh rhizome weight 450,2 and 439,8 gram/ clump at 8 month after planting. Decreasing of inorganic fertilizer to 50% and increasing of manure t0 100% in Entisol would be growth and yields of red ginger crop are not significant if it compares to standard combination fertilizer and manure application.
Shell and Tube Heat Exchanger Fouling Factor via Heat Transfer Research Inc (HTRI) Software Ismi Ari Fitria; Dessy Agustina Sari; Vera Pangni Fahriani; Mohammad Djaeni
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 7, No 2 (2022): EDISI SEPTEMBER 2022
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v7i2.4030

Abstract

One of the factories for manufacturing Carboxymethyl Cellulose (CMC) uses a shell and tube-type heat exchanger as a condenser. The shell and tube (HE) heat exchanger consists of small diameter tubes arranged in a cylindrical shell. In the tube and shell sections, hot (ethanol) and cold (water) fluids will flow so that heat transfer occurs directly. The use of heat exchangers regularly will reduce the performance of the tool. Due to the increasing fouling layer inside the HE, the device will work harder, and the heat process could be more optimal. It is necessary to analyze the performance of the heat exchanger using the parameter value of the fouling factor (Rd). The fouling factor can be calculated using the manual calculation method (via the Kern method) and the HTRI program. The involvement of the mathematical equation in the first method will be configured for the calculation results through process simulation in the HTRI software. Both ways are used for calibration between manual calculations and the HTRI software for the Rd values obtained. The fouling factor can be calculated using the manual method and HTRI software. The two methods used for calibration are manual calculations with HTRI software. The results from this analysis give a decrease in tool performance with a fouling factor of 0,01 Btu/(h.ft2.℉). ABSTRAKSalah satu pabrik pembuatan Carboxymethyl Cellulose (CMC) menggunakan heat exchanger tipe shell and tube sebagai kondensor. Heat exchanger (HE) shell and tube terdiri dari sekumpulan tube berdiameter kecil yang disusun di dalam shell berbentuk silindris. Pada bagian tube dan shell akan dialirkan fluida panas (etanol) dan dingin (air) agar terjadi proses perpindahan panas secara tidak langsung. Penggunaan heat exchanger secara berkala akan mengurangi kinerja alat. Hal tersebut disebabkan oleh adanya lapisan fouling yang terus meningkat di bagian dalam HE sehingga alat akan bekerja lebih berat dan proses perpindahan panas tidak maksimal. Untuk mengatasi fenomena tersebut maka perlu dilakukan analisis kinerja heat exchanger menggunakan parameter nilai fouling factor (Rd). Fouling factor dapat dihitung menggunakan metode perhitungan manual (melalui metode Kern) dan penggunaan program HTRI. Keterlibatan persamaan matematis pada metode pertama akan dikonfigurasi hasil perhitungannya melalui simulasi proses pada software HTRI Kedua metode digunakan untuk kalibrasi antara perhitungan manual dengan software HTRI atas nilai Rd yang didapatkan. Hasil analisis perhitungan dengan kedua metode tersebut menghasilkan penurunan kinerja alat dengan nilai fouling factor sebesar 0,011 Btu/(jam.ft2.℉).  
Co-Authors Al Ghifari Marendra Fadzrin Dessy Agustina Sari Kristin Valentina Sidabutar M. Djaeni Muhammad Ikhsan Kamil Sabrina Alfiansyahri Miledhiya Vera Pangni Fahriani Wagiono