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ROTOR: JURNAL ILMIAH TEKNIK MESIN
Published by Universitas Jember
ISSN : 1979018x     EISSN : 24600385     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
ROTOR merupakan jurnal yang diterbitkan oleh Jurusan Teknik Mesin Universitas Jember yang memuat artikel ilmiah dalam bidang Konversi Energi, Design/Perancangan, Teknik Produksi, Material serta bidang lain yang terkait dengan Teknik Mesin. Semua naskah yang diterima ROTOR diterbitkan secara global dalam bentuk elektronik. Hasil penelitian yang diterbitkan dalam jurnal ini diharapkan dapat menambah khasanah pengetahuan di bidang Teknik Mesin serta menjadikan sarana bagi para profesional baik dari dunia usaha, pendidikan, ataupun peneliti untuk menyebarluaskan perkembangan ilmu pengetahuan dan teknologi di bidang Teknik Mesin melalui publikasi hasil penelitian.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 333 Documents
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OPTIMIZATION AND PREDICTION OF CENTRAL AC SYSTEM PERFORMANCE WITH RESPONSE SURFACE METHODOLOGY (RSM) MODELING Nuriyadi, Muhammad; Akmal, Muhammad; Sunardi, Cecep
ROTOR Vol. 17 No. 2 (2024)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/rotor.v17i2.53067

Abstract

Optimizing AC system performance is important to optimize energy consumption, especially at partial load. The aim of this research is to obtain a performance model of the central AC system based on its operational conditions which include environmental air conditions, heat load conditions and other operational parameters, so that the performance of the AC system can be optimized which includes cooling capacity, power consumption and energy efficiency ratio. Data is obtained by experiment, then analyzed by Response Surface Methodology (RSM) to obtain optimal system performance. This research resulted in models of AC performance with coefficient of correlation (R2) of 0.9745, 0.2041 and 0.8965 for cooling capacity, power consumption and EER respectively. By analysis of varians for models, it is obtained that Model F-values are 9920.83, 313.45, and 2245.59 for cooling capacity, power and EER respectively, and implied that the models are significant. The Adequate precision ratios were 1078.33, 93.08, and 344.32 for those parameters respectively, and indicated the adequate signals. The optimum results obtained were a cooling capacity of 46.7 kW, compressor power consumption of 4.48 kW, and an energy efficiency ratio of 8.5. Keywords: Performance; Central air conditioning; Prediction; Optimization; RSM.
DESIGN OF A 100 KG CAPACITY WORKING LIFT CART FOR SMALL-SCALE INDUSTRIAL APPLICATIONS Apriandi, Riyki; Rahmany, Rijal Surya
ROTOR Vol. 17 No. 2 (2024)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/rotor.v17i2.53085

Abstract

To accommodate heavy tool movement, forklifts are commonly used. However, a forklift is too large for use in confined workspaces within small industries. Therefore, it is proposed that a 'Working Lift Cart' be designed with a compact size. This research aims to design and develop a compact lift cart that offers flexible movement and reduces operational risks compared to existing forklift products. The method employed in this research involves a direct analysis of two proposed product plan concepts. The proposed concepts are selected based on a needs analysis. The chosen concept undergoes a safety risk analysis from the operator's perspective using the RULA method, while the product design is subjected to static stress analysis on the frame and the lifter. The results indicate that the second concept, with greater operational flexibility, is chosen. The RULA analysis, conducted using CATIA software, indicates that operating with a remote controller is significantly safer and less prone to injury. However, manual operation is retained for usability purposes. The analysis of the frame structure and lifter shows that the proposed design is safe for a 100 kg load on the lifter. Keywords: Working Lift Cart, Design, RULA, Static Stress Analysis
UTILIZATION Of Sn-Sb-S AS A NEW MATERIAL SENSITIZED SOLAR CELLS Samosir, Harrys; Robiandi, Fadli; Shoodiqin, Dian Mart
ROTOR Vol. 17 No. 2 (2024)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/rotor.v17i2.53391

Abstract

In this research process to observe the utilization of Sn-Sb-S for new material solar cells. With the SILAR (successive ionic layer adsorption and reaction) method, it was found that good conditions for growing quantum dots on the surface of TiO2 were 8 turns to get Sn-S and 6 turns for SbS and heated at 325 0C for 12 minutes. As for tools to analyze Sn-Sb-S there are quantum dots by observing using XRD and the size of quantum dots. UV Visible is used to observe the gap energy of 1.63 eV which includes a wavelength of 300-850 nm. The use of SEM to observe the morphological characteristics of Sn-Sb-S on the surface of TiO2 obtained the size of quantum dots ~ 16.6 nm. The best sample with ZnSe passivation layer resulted in short circuit current density Jsc of 14.04 mA/cm2 open circuit voltage Voc of 0.46 V, fill factor FF of 39.91%, and power conversion efficiency η of 2.58% under 1 sun. Keywords: quantum dots, science materials, renewable energy

Page 34 of 34 | Total Record : 333

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