Article Per Year (5 Year)
p-Index From 2021 - 2026
2.083
P-Index
This Author published in this journals
All Journal Jurnal Teknik Mesin Buletin Udayana Mengabdi Jurnal Energi Dan Manufaktur Jurnal Teknosains Rekayasa Mesin Jurnal METTEK (Jurnal Ilmiah Nasional Dalam Bidang Ilmu Teknik Mesin) Journal of Research and Technology Jurnal bahasa, sastra, seni, dan pengajarannya Makara Human Behavior Studies in Asia Logic : Jurnal Rancang Bangun Dan Teknologi Jurnal bahasa, sastra, seni, dan pengajarannya
Tjokorda Gde Tirta Nindhia
Program Studi Teknik Mesin, Fakultas Teknik, Universitas Udayana
Aerospace Engineering Arts Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Other

Published : 33 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 33 Documents
Search

 1   2   3   4 
PERENCANAAN PEMELIHARAAN DAN PENINGKATAN KUALITAS MESIN PEMURNIAN AIR LAUT MENJADI AIR MINUM GUNA MEMINIMASI DOWN TIME YANG BERBASIS PADA OVERALL EQUIPMENT EFFECTIVENESS (OEE) PADA INDUSTRI MENENGAH MANLEU METINARO TIMOR LESTE Tito Mau Pelu Benjamin; Tjokorda Gde Tirta Nindhia; I.G.N. Priambadi; I.W. Bandem Adnyana
Journal of Research and Technology Vol. 9 No. 2 (2023): JRT Volume 9 No 2 Des 2023
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v9i2.1079

Abstract

Overall Equipment Effectiveness (OEE) sangat penting bagi perusahaan (Desalinasi) dalam proses pemurnian air laut menjadi air minum. OEE yang biasa dikenal Perhitungan Effektivitas Peralatan Total (PEPT) digunakan untuk meminimasi downtime yang sering terjadi secara berkesinambungan guna meningkatkan effectivitas mesin sesuai dengan standar pemeliharaanyang menyatakan pengecekan setiap saat dengan menggunakan Overall Equipment Effectiveness (OEE). Overall Equipment Effectiveness (OEE) sebaagai alat ukur (Metrik) untuk mengetahui besarnya effektivitas peningkatan kualitas peralatan mesin yang dimiliki. Berdasarkan perhitungan menggunakan Overall Equipment Effectiveness (OEE) dengan nilai Availability = 43,33 nilai Performance Efficiency -12,37% dan nilai Quality Rate = 100 % dan hasil OEE = -43,59%. Ini menujukkan bahwa kualitas mesin tetap handal dalam melakukan permurnian air laut menjadi air baku.
Estetika visual dan nonvisualkoin Cina kuno asli yang ditemukan di Bali dan koin Cina buatan lokal Pemayun, Tjokorda Udiana Nindhia; Nindhia, Tjokorda Gde Tirta
Bahasa dan Seni: Jurnal Bahasa, Sastra, Seni, dan Pengajarannya
Publisher : citeus

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Up to now, Balinese culture and art cannot be separated from the utiliza- tion of old Chinese coins which local people in Bali call pis bolong. The use of those old Chinese coins in traditional ritual in Bali is found even from the infants until the end of that person’s life at cremation ceremony. The cremation ceremony uses the Chinese old coins to be burned with the deceased and to be sent with the ash from the burned deceased into the sea. This practice makes the number of old Chinese coins decrease meanwhile the demand of using the coins increase. The condition is worsened by the practice of using old Chinese coins as souvenirs. The local metal craftsmen have tried to solve the scarcity of the coins by producing a local-made Chinese coins and making them as similar as the original Chinese coins. However, due to the lack of local craftsmen’s aesthetics assessment visually and non-visually on old Chinese coins, their physical appearances were very much different from its original Chinese coins. Therefore, this paper presents the result of the observation of aesthetics assessment visually and non-visually on old Chinese coins that can be used as guidance to produce local-made old Chinese coins as similar as its original.
A Review Study of Influencing Factors and Conceptual Scaling Framework for Spray Drying Assisted by Ultrasonic Vibrating Mesh Atomizers Agustriputra IDG; Nata Septiadi Wayan; Dewa Ngakan Ketut Putra Negara; Tjokorda Gde Tirta Nindhia
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 26 No. 2 (2026): July
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v26i2.pp. 133-148

Abstract

  Abstract. Spray drying is widely used in the pharmaceutical, food, and chemical industries for converting liquid feed into dry particulate products. However, conventional spray drying systems commonly generate broad droplet size distributions and exhibit limited capability for producing submicron particles. To overcome these limitations, ultrasonic vibrating mesh atomizers have recently attracted significant attention due to their ability to generate highly uniform droplets with relatively low energy consumption and improved atomization controllability. Previous studies have investigated the influence of individual operating parameters on ultrasonic spray drying performance, particularly using laboratory-scale systems such as the Büchi Nano Spray Dryer B-90. Nevertheless, existing literature remains fragmented, with limited efforts to systematically establish the relative importance of governing parameters or to develop a unified conceptual framework for scaling ultrasonic spray drying systems from laboratory to industrial applications. This study addresses this gap by conducting a systematic literature-based parametric analysis of spray drying systems assisted by piezoelectric vibrating mesh atomizers. Experimental studies employing the Büchi Nano Spray Dryer B-90 were critically reviewed to identify the dominant factors controlling droplet formation, atomization stability, and particle generation behaviour. The analysed parameters were classified into three principal categories: atomization parameters, fluid properties, and drying process parameters. The analysis demonstrates that mesh aperture size, ultrasonic vibration frequency, and spray throughput are the primary parameters governing droplet formation and particle size distribution. Fluid properties, including viscosity, surface tension, and feed concentration, strongly influence atomization stability through their effects on dimensionless parameters such as the Weber number and Ohnesorge number. In contrast, drying parameters, including inlet air temperature and gas flow rate, predominantly affect evaporation kinetics and particle morphology rather than the initial droplet generation process. The reviewed studies further indicate that ultrasonic atomization commonly operates within a regime characterized by moderate Weber numbers and relatively low Ohnesorge numbers, consistent with capillary wave breakup mechanisms. Based on these findings, a conceptual scaling framework is proposed in which atomization similarity, fluid dynamic similarity, and drying conditions must be simultaneously considered to achieve reliable scale-up of ultrasonic spray drying systems
Co-Authors A. S. Ferdinand Agustriputra IDG Anak Agung Istri Agung Sri Komaladewi Anton S Ferdinand Ferdinand D. N. K. P. Negara D.N.K.P Negara D.N.K.P. Negara D.N.K.P. Negara Daud Simon Anakottapary David Lie Dewa Ngakan Ketut Putra Negara Dewa Putra Negara Dewa I Gusti Agung Kade Suriadi I Gusti Komang Dwijana I Gusti Ngurah Nitya Santhiarsa I Ketut Adi Atmika I Made Widiyarta I Made Widiyarta Made I Nengah Suarnadwipa I Putu Ari Astawa I Putu Gede Artana I Putu Putra Widia Semara I Putu Widya Semara I Wayan Bandem Adnyana I Wayan Putra Adnyana I Wayan Surata I Wayan Widhiada I. K. A. Atmika I. P. Hariwangsa I.B.P Adnyana I.B.P. Purwadnyana I.D.G.P. Swastika I.D.M.K. Muku I.D.N.P. Swastika I.G.N. Priambadi I.G.N.W. Gunawan I.K.A Atmika I.K.A. Atmika I.P.A. Astawa I.W. Bandem Adnyana I.W.A.R. Dana Ida Bagus Gde Widiantara K. Sebayuana Komang Metty Trisna Negara Luh Putu Ike Midiani M Sucipta Made Cuaca Vahindra Suriawan Made Sucipta Negara, I Gede Artha Pemayun, Tjokorda Udiana Nindhia R. Antara Tito Mau Pelu Benjamin Tjokorda Sari Nindhia Tjokorda Udiana Nindhia Pemayun Pemayun, Tjokorda Udiana Nindhia Pemayun Tomáš Ruml UDIANA NINDHIA PEMAYUN, TJOKORDA Wayan Nata Septiadi Y.P Sudarmojo Zdenek Knejzlík