Abstract: Various parameters affect the pump performance in which blade number, blade angle, outlet diameter, and volute shape are the most important. In this paper the performance of pumps with different impellers containing blade number and different volute shape containing circular-elliptical and rectangular is evaluated. In this study four different blade numbers 5, 6, 7, and 8 are modeled and two different rectangular and circular-elliptic volute shapes are also studied. Incompressible Navier-Stokes equations over a hybrid grid is solved by commercial software package Fluent. Rotational zone will be simulated by moving referenceframe method. For each impeller, the flow pattern and pressure distribution are calculated and finally the head and efficiency curves are compared and discussed. The results show that by increasing the blade numberthe head increase and efficiency decrease slightly. Also circular-elliptic volute shows better performance especially in higher flow rates than the rectang

• Publication Date: 09-Mar-2014
• DOI: 10.15224/978-1-63248-002-6-86
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Abstract: This project is intended at creating a customized robotic vehicle or a platform, which can be useful for a multitude of applications. The proposed robotic vehicle fundamentally makes use of technologies like GPS and ZIGBEE/GSM, in addition to using an on board microcontroller and the drives and motors to race the vehicle. The vehicle can be adjure from a remote location, to certainly go from one point to another in terms of the GPS coordinates. So it is very important for us to advance the standard of our vitality in the future by using embedded system. This robotic vehicle once assemble can be useful for many assorted applications, like autonomous agricultural vehicles, video and audio surveillance, Motion detection in remote locations, for detection of hazardous conditions like nuclear radiations or poisonous gases in remote locations, communication jamming in remote locations etc. In this assignment an agricultural application like seeding or obstacle monitoring will be demonstrated

• Publication Date: 09-Mar-2014
• DOI: 10.15224/978-1-63248-002-6-87
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