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All Journal Mechanical Engineering for Society and Industry
Iliyas K. Okediran
Osun State University, Nigeria
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Effect of silica on the mechanical properties of palm kernel shell based automotive brake pad Olayide R. Adetunji; Ayodele M. Adedayo; Salami O. Ismailia; Olawale U. Dairo; Iliyas K. Okediran; Olanrewaju M. Adesusi
Mechanical Engineering for Society and Industry Vol 2 No 1 (2022)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (591.71 KB) | DOI: 10.31603/mesi.6178

Abstract

This research investigated the role of silica on palm kernel shell (PKS) as friction lining materials in automotive brake pad production. The friction materials were crushed, milled and sieved into four different particle sizes of 100, 150, 200 and 350 µm. The formulations weight percentages employed included Resin (20%), steel slag (15%) and carbon black (5%) while palm kernel shell and silica were varied for each particle size. Individual formulation was mixed for about 10 minutes until formation of homogeneous mixture. Homogeneous formulation A, B, C and D respectively, was compacted into mould and later sintered at 150 oC for 10 minutes in electric furnace and subsequently treated to enhance quality. Produced samples were characterized and evaluated for surface hardness (SH), compressive strength (CS), flame resistance (FR), oil absorption (OA), water absorption (WA) and wear rate (WR). The particles were also characterized using Scanning Electron Microscope. The results revealed that sample D had highest SH and CS values of 105.5 Brinell hardness number (BHN) and 115.2 N/mm2 respectively with decreasing values as particle size increases. FR decreased from samples A to D, and also decreased as particle size increased. Deductively, Sample B with the sieved grade of 100 µm was the best with SH as 99.14 BHN, CS as 105.6 N/mm2, WR as 4.15%, FR as 38.98%, and WA rate as 4.26 % and CF as 0.45 and OA rate as 0.381%. Conclusively, this research developed a high quality eco-friendly PKS particle composite for the production of brake pad.
The Effect of Excess Heat Utilization on the Production Cost of Cement Olayide R. Adetunji; Montfort C. Ogbuokiri; Olawale U. Dairo; Olanrewaju B. Olatunde; Iliyas K. Okediran
Mechanical Engineering for Society and Industry Vol 1 No 2 (2021)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (598.265 KB) | DOI: 10.31603/mesi.5987

Abstract

Industrial excess heat is a largely untapped resource that has the potential for external use that would be beneficial to the cement industry. Therefore, this work studied the excess heat utilization for the optimization of production cost in a cement plant within a period of three years. The study of plant layout in the selected plant in Nigeria (Ewekoro II Cement Plant of 200 tonnes/hour) was carried out to identify areas where excess heat is generated. The temperature and static pressure of precalciner, kiln, and cyclone were taken using a temperature probe, pitot tube, digital manometer, and light-emitting diode temperature reader. These parameters were used to obtain the mass flow rate and heat transfer needed for the heat energy analysis of the system. The kiln was maintained at constant tonnage per hour through a clinker truck weighed using the weighbridge. The result showed that the heat generated from the kiln was 577,640,260 MJ/hr. through excess air draft of 780,000 m3/hr (89.4%) at 250 °C and induced draft fan of 900,000 m3/hr at 350 °C. The result showed that excess heat can be utilized in pre-heater and air quenched cooler boilers, steam turbines and auxiliaries, and generators. The total estimated heat that could be saved amounted to 344,648,250 MJ with a total annual capacity of 2.25 million tonnes of cement. A saving of over two billion dollars could be achieved in production cost per year.
Co-Authors Ayodele M. Adedayo Montfort C. Ogbuokiri Olanrewaju B. Olatunde Olanrewaju M. Adesusi Olawale U. Dairo Olayide R. Adetunji Olayide R. Adetunji Salami O. Ismailia