European Journal of Advances in Engineering and Technology

158-163

Authors: Ahmed M El-Kassas andIbraheem Sabry

In this Work, a comprehensive practical study in total cost estimation of welded Aluminum 6061 pipes using three different types of welds, Metal Inert Gas (MIG), Tungsten Inert Gas (TIG) and Friction Stir Welding (FSW) . The cost component of joining Al 6061 aluminum pipe welding was each component cost (labor cost, Power cost, Ma-chine cost, shield gas cost(MIG,TIG), filler metal cost(MIG,TIG) and Tool cost(FSW)) has been closely analyzed and major cost components have been included in the cost model. We used these cost models to predict the cost of Metal Inert Gas (MIG), Tungsten Inert Gas (TIG) and friction stir welded pipe joints. Initial results show that MIG and TIG welding were less cost effective compared to FS welding, but it is possible that the cost of reduced friction stirs welding with quantitative prediction.

172-182

Authors: M Alwetaishi, A Elamary and U Issa

The rapid growth of renewable energy globally is connected to the developed performance of the system especially in solar and wind powers. This is in association with enormous research conducted worldwide. After Saudi Arabia has acknowledged the new vision of the country in 2030 which of the major aims is to enhance the utilisation of renewable energy technology. The government has supported various research in sustainable power. Since then, many work has been published with regard to the mentioned subject. This research focus on real application of utilising renewable energy at a given house consist of five people based on their energy use. It was found that wind power and PV system have attributed with 37.5% and 41.0%, respectively. The research will highlight that the utilisation of these systems are quite promising and can lead to massive energy saving in demotic building.

189-193

Authors: Jimson S Ramirez, Glenn A Batoon and Annadaie S Sacayanan

The main production constrain is the availability of reliable and safe planting material. Planting materials obtained through conventional methods do not meet the increasing demand for planting and they are of poor quality. Tissue culture approach can solve these problems but it is yet to benefit majority of small scale farmers because of the high costs and sophisticated skills associated with the technology. Therefore, to increase banana production in small scale systems, there is a need for affordable and simple technique for seedling production. Macro propagation is one such technique and can improve banana production if adopted. In view of these characteristics, the effect of the humidifier and types of growth enhancer were evaluated using factorial in completely randomized design. The main plots consisted of types of humidifier with 2 levels: A1=with misting system, A2=without and for sub plots different growth enhancer was applied at 3 levels: B0=Control, B1=Benzyl Amino Purine at 1.5mg/L and B2= Naphthalene acetic acid at 0.93g/L. Result showed that humidifier led to a significant increase (p<0.01) in all the growth parameter tested during the 1st and 2nd cycle. On the other hand, growth enhancer affects significantly the number of days to emergence (p<0.01) First Generation Shoots (FGS), Second Generation Shoots (SGS), number of shoots emerged (p<0.01) (FGS, SGS), shoot collar diameter emergence (p<0.01) (FGS), (p<0.05) (SGS) and total leaf area (p<0.05) (FGS), (p<0.01) (SGS). However, no significant effect was observed on the interaction of the two factors for FGS but interaction of factors during SGS affect significantly the number of days to emerge (P ≤ 0.05), number of shoots emerged (P ≤ 0.01) and total leaf area (P ≤ 0.05). Interaction of factors did not significantly affect the shoot collar diameter.

201-208

Authors: Sehrish Aqeel

Real time systems are type of operating systems that respond with respect to time. Quality of real time systems is of at most importance as failure of system can lead to severe results. Quality assurance procedures, methods and standards must be implemented to ensure quality of the system. Different scheduling techniques are adopted as per requirement of the system. Systems are designed according to user/organization needs and accordingly scheduling technique is followed. Whatever technique is adopted; it must follow quality attributes to make it work successfully. Paper has described dependency of scheduling on the type of the system being chosen along with task/processes working in it. Comparative analysis is performed to evaluate quality assurance of each technique discussed with respect to quality attributes. Quality can be different from organization to organization but all systems expect degree of excellence to be implemented without fail. Fault tolerance and reliability are main features of real time computing too. So Quality assurance can only guarantee effective scheduling approach to make real time system a successful sample for other systems to survive in race of modernized quality assured systems.

216-220

Authors: AE Ikpe, EK Orhorhoro and OG Ogiemudia

Pressure loss in air duct channels is caused by friction between the fluid and the walls of the pipe conveying liquid or gaseous product from one location to another. In recent times, a number of tools have developed for analysing this relationship but STAR CCM+ was adopted in this study for analysing the pressure losses at predetermined velocities. The velocities used were 5m/s, 10m/s, 20m/s and 40m/s respectively and the pressure losses at each simulation cycle where 5.94, 21.91, 81.58 and 285.66Pa according to the set velocities. Hence, it was observed that the pressure losses increased as the velocity and inlet pressure increased.