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All Journal Transmisi Jurnal Teknik Mesin Indonesia Jurnal Abdi: Media Pengabdian Kepada Masyarakat Mechonversio: Mechanical Engineering Journal International Journal of Engineering, Science and Information Technology Malikussaleh Journal of Mechanical Science Technology Jurnal Teknologi Terapan and Sains 4.0 Jurnal Malikussaleh Mengabdi Jurnal Solusi Masyarakat Dikara
Ahmad Nayan
Universitas Malikussaleh
Religion Aerospace Engineering Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Journal : Transmisi

 1 
Evaluation of Fluid Flow Velocity Variations on the Plate Heat Exchanger Performance Andika Syahputra; Asnawi Asnawi; Ahmad Nayan; Alchalil Alchalil; Nurul Islami
TRANSMISI Vol 19, No 1 (2023): March 2023
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v19i1.9650

Abstract

Heat exchanger expected to high effectiveness of heat transfer. Type of plate heat exchanger was more efficient compare to another heat exchangers in industrial applications with pressure less than 30 bar. The increased velocity of cold fluid flow has an impact to increase the performance of heat exchanger by  heat transfer rate (Q), heat transfer coefficient (U), and the effectiveness of heat exchanger (ε). The increased velocity of cold fluid flow also incresing the heat transfer rate. The study carried out by variation of the cold fluid velocity at 0.03 m/s, 0.037 m/s, 0.045 m/s, 0.051 m/s and 0.059 m/s. Inlet hot fluid temperature (Th,i) at 45°C and cold fluid temperature (Tc,i) at 27°C constant. The results shows Q value from the original 1570.71 Watt to 1916.16 Watt on the hot side and 1751.89 Watt to 2187.01 Watt on the cold side. The U value from the original 1180.46 W/m2.°C becomes 1408,75 W/m2. °C. The ε value increased from 60.33% to 75.69%. The increasing of  cold fluid velocity directly proportional to the the heat transfer rate (Q) and performance of the plate heat exchanger. This Phenomenon due to the faster circulation of the cold fluid, which causes the cold fluid to quickly return to its initial temperature (Th,i), an than increasing the plate heat exchanger's performance.
Fabrication of Dye Sensitized Solar Cell Using Cassava Leaf Extract and Red Dragon Fruit Purnomo, Teguh; Nayan, Ahmad; Sayuthi, Muhammad; Islami, Nurul; Rahman, Abdul
TRANSMISI Vol 19, No 2 (2023): September 2023
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v19i2.10262

Abstract

This research aims to identify the absorbance and consistency of the efficiency of DSSC (Dye-Sensitized Solar Cells). The study was conducted with variations of chlorophyll-anthocyanin mixture using different volumes of dye solutions: 10 ml of a cassava leaf and 20 ml of red dragon fruit, 20 ml of a cassava leaf and 10 ml of red dragon fruit, and 10 ml of a cassava leaf and 10 ml of red dragon fruit. The Dye-Sensitized Solar Cell system consists of natural dye as the colorant, electrolyte solution, two FTO glass substrates with dimensions of 2.5 cm x 2.5 cm, which function as working electrodes coated with titanium dioxide as the semiconductor using the doctor blade method, and counter electrode coated with carbon. All components of the Dye-Sensitized Solar Cell are arranged in a sandwich-like structure, with the counter electrode facing the working electrode and clamped together using paper clips. The highest absorbance value was obtained with the variation of 20 ml red dragon fruit and 10 ml cassava leaf compared to other mixtures. The highest efficiency and power of the Dye-Sensitized Solar Cell were also obtained with 20 ml of red dragon fruit and 10 ml of cassava leaf
Co-Authors Abdul Rahman Abubakar, A Adhiya Putra, M. Iqbal Adi Pangestu, Rangga Adi Setiawan Akmal Akmal Alchalil Alchalil Aljufri Aljufri Andika Syahputra AR, Marzuki Asnawi Azhari Azhari Br. Simajuntak, Ochitria Cintia Butar Butar, Iqbal Duarda Deassy Siska Dirga, Muhammad Fasdarsyah Fasdarsyah Hadi, Dodi Alfarasi Haykal, Muhammad Heikal, Mohammad Heni Pujiastuti Irfan, Said Karim, Firman Khairul Anshar M Fauzan Muhammad Muhammad Aufa Aslami Muhammad Daud Muhammad Habibi Muhammad Muhammad Muhammad Sayuthi Muhammad Sayuthi Muhammad Yusuf Muhammad Yusuf Muhammad, M Mukhlis Mukhlis Mulkia Farhan mumfazir, mumfazir Nasution, Ichsan Alwi Nurmalita Nurmalita Nurul Islami, Nurul Pertiwi, Indah Ayu Poppy Mayang Sari Reza Putra Ridara, Rina Rizqon Hasibuan Sherly Ramadhani Siregar, Umar Ramadhan Sofyan Sofyan Sofyan Sofyan Supia, Dede Irawan Suryadi Suryadi Suryadi, S Syahputra, Amri Syamsiar, Syamsiar Teguh Gunawan Teguh Purnomo, Teguh Teuku Mudi Hafli Willy Ivan Lucky Yasir Amani Yogi Arieandi Yulisda, Desvina Yusuf, Edy Zulmiardi, Zulmiardi