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Rajasthan, India

Mewar University is an autonomous body set up by the Government of Rajasthan through Act. No. 4 of 2009, passed by the Rajasthan Assembly . The University is further approved by the UGC under u/s 2 of the UGC Act 1956, with the right to confer degree under u/s 22 of the UGC Act vide letter No.F.9-15/2009 dt. 30 March 2009. Mewar University is promoted by the Mewar Education Society , headed by Dr. Ashok Kumar Gadiya. It is controlled by a Board of Management, constituted by the MES. Wikipedia.

Sharma S.,Mewar University | Dwivedi V.K.,Galgotias University | Pandit S.N.,Noida Institute of Engineering and Technology
International Journal of Green Energy | Year: 2014

Thermoelectric devices are solid-state devices. Semi-conductor thermoelectric power generation, based on the Seebeck effect, and semi-conductor thermoelectric cooling, based on the Peltier effect, have interesting capabilities compared to conventional power generation and cooling systems. The absence of moving components results in increase in reliability, a reduction in maintenance, and an increase of system life; the modularity allows for application in wide range without significant losses in performance; the absence of working fluid avoids environmental dangerous leakages; and the noise reduction appears also to be an important feature. With the rapid development of techniques to make excellent semi-conductor materials the practical applications and theoretical investigations of the thermoelectric devices have come into focus. This article begins with a brief overview of thermoelectric technology, thermoelectric materials, thermoelectric module construction and operation. A review of recent developments in research, commercial development, and typical applications of thermoelectric devices is made. The article draws conclusions on the development and potential application of thermoelectric devices suitable for thermoelectric cooling. © Taylor & Francis Group, LLC. Source

Ajmera S.K.,Mewar University | Mathur A.N.,Shrinathji Institute of Technology and Engineering
Experimental Thermal and Fluid Science | Year: 2015

Mixed convection heat transfer in multiple ventilated enclosure with three numbers of discrete heat sources at bottom is investigated experimentally. Each of the three heat sources has been flush mounted at the enclosure bottom and subjected to uniform heat flux. All the walls of enclosure are insulated adequately and the enclosure can be considered as adiabatic. The enclosure is having inlet at bottom of left side wall and outlet at both the left and right sides of the roof of enclosure. The flow velocity and applied heat flux are varied. The experimental investigations were executed for AR (L/H)=1, range of Reynolds number and Grashof number considered are 270≤Re≤6274 and 7.2×106≤Gr≤5.5×107 and as a consequence, the Richardson number obtained in the range 0.201-571. The experimental results stipulate that the heater nearest to enclosure inlet (heater-1) subjected lowest surface temperatures at all Reynolds numbers while the surface temperatures of heater-2 and heater-3 are almost same until Grashof number attains a critical value. Different correlations are proposed for Nusselt number within the range of parameters considered in the study. © 2015 Elsevier Inc. Source

Singh S.,MMH College Ghaziabad UP | Rani G.,Mewar University
Acta Chimica Slovenica | Year: 2012

This study is related with the development of Pr 3+ selective membrane sensor using 1,5-Bis-(o-aminophenol)-3-thiapentane as a neutral carrier. The sensor with membrane composition of 33% PVC, 54%, o-NPOE, 8% NaTPB and 5% ionophore, exhibits a Nernstian response for Pr 3+ ion, with a wide concentration range of 3.0 × 10 -9-1.0 × 10 -2 mol/L, low detection limit (1.0 × 10 -9 mol/L) and slope of 23.50.3mV decade -1 of activity with in pH range of 2.0-8.8 and fast response time of 7s. The sensor was also found to work satisfactorily in partially non-aqueous media up to 25% (v/v) content of methanol, ethanol or acetone and could be used for a period of 8 months without any change in response characteristics. The proposed membrane electrode was successfully applied as an indicator electrode for the titration of Pr 3+ ion (1.0 × 10 -3 M) with a standard EDTA solution (1.0 × 10 -3 M). Source

Singh V.V.,Vinodini PG College | Ram M.,Graphic Era University | Rawal D.K.,Mewar University
IEEE Transactions on Automation Science and Engineering | Year: 2013

We present a novel method for cost analysis of an engineering system, which consists of two subsystems, viz. subsystem-1 and subsystem-2 with controllers. Subsystem-1 works under the k-out-of-n: good policy. Subsystem-2 consists of three identical units in parallel configuration. Both of these subsystems are connected in series. The controllers control both the subsystems. The operator who is assigned to operate the system may not be satisfied with the organization and hence may fail the whole system deliberately. The system is studied by supplementary variable technique. Various measures of reliability have been discussed. © 2004-2012 IEEE. Source

Rawal D.K.,Mewar University | Ram M.,Graphic Era University | Singh V.V.,Yobe State University
International Journal of Engineering, Transactions A: Basics | Year: 2014

In this paper, the authors have focused on the stochastic analysis of an internet data center (IDC), which consists of a database main server connected to a redundant server. Observing the different possibilities of functioning of the system, analysis has been done to evaluate the various reliability characteristics of the system. The system can completely fail due to failure of redundant server before repair of database server, router failure and switch failure. The system can also fail completely due to a cooling failure or some natural calamity like earthquake, fire; etc. All the failure rates are assumed constant while the repairs follow two types of distributions namely general and Gumbel-Hougaard family copula. Source

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