Article Per Year (5 Year)
p-Index From 2019 - 2024
0.92
P-Index
This Author published in this journals
All Journal Rekayasa Mesin Jurnal Teknik Pengairan: Journal of Water Resources Engineering ROTOR: JURNAL ILMIAH TEKNIK MESIN
Denny Widhiyanuriyawan
Jurusan Teknik Mesin Fakultas Teknik Universitas Brawijaya
Automotive Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

Published : 22 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 22 Documents
Search

 1   2   3 
Pengaruh Variasi Sudut Static Mixer Terhadap Kinerja Heat Exchanger Widhiyanuriyawan, Denny; Purnami, Purnami; Ardiansyah, Ardiansyah
Rekayasa Mesin Vol 2, No 2 (2011)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (707.118 KB)

Abstract

This study was proposed to determine the effect of static mixer on innertube installation of double pipe heat exchanger. The dimenssion of outer (hot fluid) and inner (cold fluid) pipes of heat exchanger were 76.2 mm and 25.4 mm, respectively. Static mixers with 19 mm diameter and 60 pieces number were variated with θ=40o, 80o, and120o. The hot fluid discharges were variated from 400 to 900 liters/hour and the constant of cold fluid discharge with 900 liters/hour. The results show the heat transfer rate of statics mixer with angle variation higher than plain tube (without static mixer).The heat transfer increased 24%, 39%, and 44% for variation angel of static mixer with θ=40o, 80o, and 120o, respectivelly.Keywords: Static mixer, heat transfer rate
Pressure Drop dan Pola Aliran Dua Fase (Air-Udara) Melewati Pipa Groove Vertikal Aji, Supa Kusuma; Widhiyanuriyawan, Denny; Yuliati, Lilis
Jurnal Rekayasa Mesin Vol 11, No 3 (2020)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2020.011.03.7

Abstract

This research was conducted to observe the effect of adding grooves in the two-phase flow of water-air in the same direction through a vertical pipe to changes in pressure and fluid flow patterns. Test section in the form of pipes with grooves made of acrylic material with a length of 100 cm and an internal diameter of 2.54 cm. The geometric shape of the acrylic pipe is modified by giving a groove in the direction of the pipe along the test section. Grooves used amounted to 4 and 16 and pipes without grooves used as a comparison. Tests are carried out by flowing water and air that has been mixed through the inlet side upward. The ratio of air velocity to water velocity (VG / VL ) is 0.24-1.13. The method used in this study is experimental. Retrieval of pressure drops data is done by using a differential pressure transmitter. Visual observations are also made using a DSLR camera equipped with a flash and video observations using a smartphone with slow-motion mode. The results showed changes in flow patterns and pressure drop values. Slugs in pipes with grooves disappear faster and pressure drops are lower than pipes without grooves.
Co-Authors Aji, Supa Kusuma ARDIANSYAH ARDIANSYAH Asroful Anam Candra Trimandoko, Candra de Fretes, Henry Valentino Desyandri Desyandri Dida, Hero P Djoko Sutikno Dody Candra Kumara, Dody Candra Faruq Syah Permana Putra I Nyoman Gede Wardana Ikhwanul Qiram ING Wardana ING. Wardana, ING. Lilis Yuliati M. Ruslin Anwar Mangku Purnomo Mariki, I Wayan Wawan Mega Nur Sasongko Mietra Anggara Nur Aini Uwar Nurkholis Hamidi Purnami Purnami Roymons Jimmy Dimu Rudy Soenoko Runi Asmaranto Slamet Wahyudi Sonief, A. As’ad Sudjito Soeparman Sugiarto S Sugiono Sugiono Syamsul Bahri La Muhaya, Syamsul Bahri Tjuk Oerbandono Wicaksono, Hangga Widya Wijayanti Wijono Wijono Zulkifli Kurniawan