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An Experimental Study on Heat Transfer Enhancement of Flat Plates Using Dimples
Amjad Khan,
Mohammed Zakir Bellary,
Mohammad Ziaullah,
Abdul Razak Kaladgi
Issue:
Volume 4, Issue 4, July 2015
Pages:
34-38
Received:
11 May 2015
Accepted:
20 May 2015
Published:
29 May 2015
Abstract: Dimples play a very important role in heat transfer enhancement of electronic cooling systems. In the current paper, the fluid flow and heat transfer characteristics of spherical dimples at different angle of orientation from the centre with apex facing the inlet were investigated. The experiment was carried out for laminar Natural convection conditions with air as a working fluid. The overall Nusselt numbers and heat transfer coefficient at different orientation angle of dimples were obtained. From the obtained results, it was observed that the Nusselt numbers and heat transfer coefficient increases with decrease in the orientation angle of dimples.
Abstract: Dimples play a very important role in heat transfer enhancement of electronic cooling systems. In the current paper, the fluid flow and heat transfer characteristics of spherical dimples at different angle of orientation from the centre with apex facing the inlet were investigated. The experiment was carried out for laminar Natural convection condi...
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Influence of Power Quality Problem on the Performance of an Induction Motor
Amaize Aigboviosa Peter,
Ignatius Kema Okakwu,
Emmanuel Seun Oluwasogo,
Akintunde Samson Alayande,
Abel Ehimen Airoboman
Issue:
Volume 4, Issue 4, July 2015
Pages:
39-44
Received:
3 May 2015
Accepted:
15 May 2015
Published:
1 June 2015
Abstract: This paper presents the application of MATLAB® Simulink as a useful tool for predicting the performance of an induction motor. The influence of power quality problem on the performance of an induction motor is critically investigated. Mathematical modelling of an induction motor subjected to an unsymmetrical voltage conditions are presented. The results obtained from the simulation reveal the presence of rotor noise and vibration during operation of induction motor under voltage unbalance.
Abstract: This paper presents the application of MATLAB® Simulink as a useful tool for predicting the performance of an induction motor. The influence of power quality problem on the performance of an induction motor is critically investigated. Mathematical modelling of an induction motor subjected to an unsymmetrical voltage conditions are presented. The re...
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Smart Generator Monitoring System in Industry Using Microcontroller
S. Boopathi,
M. Jagadeeshraja,
L. Manivannan,
M. Dhanasu
Issue:
Volume 4, Issue 4, July 2015
Pages:
45-50
Received:
7 May 2015
Accepted:
20 May 2015
Published:
6 June 2015
Abstract: The electrical power systems are highly non-linear, extremely huge and complex networks. On the other hand, all the developed and countries have not sufficient supply of power. My Project focuses the detection of power failure and takes reflex action to solve the problem with help of GSM communication. The power failure will be detect by relay, and it communicates to Microcontroller to alerts the authorized person. In addition to that, parameters of Generator like Fuel level, Oil level, Temperature, battery status, etc., are monitored and communicated to authorized person. The acquired parameters are processed and recorded in the system memory. If there is any abnormality in their process, according to some predefined instruction and policies that are stored on the embedded system EEPROM then GSM alerts to concerned person immediately.
Abstract: The electrical power systems are highly non-linear, extremely huge and complex networks. On the other hand, all the developed and countries have not sufficient supply of power. My Project focuses the detection of power failure and takes reflex action to solve the problem with help of GSM communication. The power failure will be detect by relay, and...
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Research About China’s Electricity Market Reform Based on Hall's Three Dimensions Structure Model
Issue:
Volume 4, Issue 4, July 2015
Pages:
51-56
Received:
10 July 2015
Accepted:
20 July 2015
Published:
25 July 2015
Abstract: To promote the development of the national economy, how to improve the electricity market and establish effective competition mechanisms becomes the focus of the new round of electricity market reform in China. Referring to the basic thoughts of Hall’s three dimensions structure theory of system engineering discipline, and analyzing from three levels of logic dimension, time dimension and knowledge dimension, this paper provides recommends on the implementation of electricity market reform in China. Through the compared analysis of two reform programs in the logic dimension, we obtain the modified electricity reform program for current China that is keeping the grid company having the whole business of transmission and distribution, establishing electricity sale companies, establishing power trading center and promoting power direct trading.
Abstract: To promote the development of the national economy, how to improve the electricity market and establish effective competition mechanisms becomes the focus of the new round of electricity market reform in China. Referring to the basic thoughts of Hall’s three dimensions structure theory of system engineering discipline, and analyzing from three leve...
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