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Journal : JOURNAL OF SCIENCE AND APPLIED ENGINEERING

Investigation of Silica (SiO2) Nano Materials for Increasing Performance of Vehicle Radiator Cooling Systems Arif Surono; Wachid Yahya; Adnan Nur Avif
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 5, No 2 (2022): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v5i2.4054

Abstract

This study aims to evaluate the effect of fluid flow rate on the effectiveness of radiator performance by using nanofluid consisting of a mixture of raw water with nano silica (SiO2) particles. The research was initiated by testing the silica material morphologically using a Scanning Electron Microscope (SEM) with the aim of knowing its microstructure. Next, mix the silica nanoparticles (SiO2) with water using a ratio of 0.5%, processed using a magnetic stirrer for 8 hours and precipitated for 24 hours. After being separated from the sediment, the nanofluid was tested for performance using a series of cooling system performance test equipment. A series of test equipment consisting of a radiator, flowmeter, water pump, pipe installation, heater and reservoir tank. Research data collection was carried out at the inlet and outlet temperatures as well as the radiator wall. In this study, variations in fluid flow velocity of 2.5, 4.5, and 6 LPM were carried out. The results showed that the decrease in temperature with the use of a fluid flow rate of 6 LPM was able to dissipate heat well to the environment. The decrease in temperature that occurs is 2.5%. Meanwhile, the lowest average radiator effectiveness value at the lowest speed of 6 LPM is 0.905, the highest at a fluid flow rate of 4.5 is 0.930.
Study of Characteristic of Used Tire, Asphalt, and RHDPE Powder Composites as Car Fender Material Anwar Nurharyanto; Wachid Yahya
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 7, No 1 (2024): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v7i1.5233

Abstract

This research aims to determine the effect of composition on used tire powder composites, asphalt, and recycled plastic (rHDPE), on tensile stress. The composite is expected Can be used for fenders on cars. The composition variations in this study were 500 grams of used tire powder, and 100 grams of asphalt, with variations of rHDPE 20, 30, 40, 50, 60, 70, 80, 90, 100, 120, 200, 250, 300, 350, 400 grams. From the tensile test results, the lowest tensile stress was obtained 0.0233 N/mm2 is owned by a composite with a composition of 40-gram rHDPE. For tensile stress. The highest was a composite with a composition of 400-gram rHDPE with a tensile stress value of 0.855 N/ mm2. The tensile test results of factory-made car fenders have a tensile stress of 0.852 N/mm2. From this research, it can be concluded that composites with composition High rHDPE can be used for fenders.