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Search Results: 1 - 10 of 200954 matches for " P. Pawar "
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Energy Efficiency Evaluation in Pumping System  [PDF]
Sharad P. Jagtap, Anand N. Pawar
Modern Mechanical Engineering (MME) , 2013, DOI: 10.4236/mme.2013.34024

Like 3M’s (Man, Machine and Material), energy is one of the major inputs for economic development of the country. In case of developing countries like India, the energy sector assumes critical importance in the view of the ever increasing energy needs, requiring huge investments for new power plant erection. About 85% of total primary energy need comes from fossil fuels. Particularly, oil contributes to 31% primary energy sources and the existence of it from domestic source in India may last for only about 20 years only at the current reserve to production (R/P) ratio. Similarly, coal contributes to 54% primary energy sources and may last for about 114 years at the current reserve to production (R/P) ratio. Water Pumping System is one of the major utilities in SME’s as well as power & process industry, and consumes about 10% - 15% electrical power in Industrial and Agricultural sector. As per TERI Energy data directory yearbook, Industrial sector and Agricultural sector contribute to 45% and 7% of the total energy needed respectively in India. A measurable amount of Industrial production is delivered from small and medium industries operated with inefficient equipment, where it has been difficult to implement efficiency improvements. The objective of Water Pumping System in most cases is either to transfer liquid from one reservoir to another or to circulate liquid across the heat exchanger around a system. Since worldwide, centrifugal pumps account for the majority of electricity used by pumps, this paper focuses on energy saving in centrifugal pumping system with a case study work carried out in an industry.

The Optical Parameters of ZnxCd(1-x)Te Chalcogenide Thin Films  [PDF]
Umeshkumar P. Khairnar, Sulakshana S. Behere, Panjabrao H. Pawar
Journal of Surface Engineered Materials and Advanced Technology (JSEMAT) , 2011, DOI: 10.4236/jsemat.2011.12008
Abstract: A procedure to make optical quality thin films of ZnxCd(1-x) Te by use of thermal evaporation of the ternary compound has been investigated. Structural and optical properties of ZnxCd(1-x)Te solid solution with x = 0.1 to 0.5 were synthesized, from the resulting ZnTe and CdTe composition used in preparation of thin films. Structural investigation indicates they have polycrystalline structure. Composition was confirmed from EDAX while SEM picture shows homogeneity in films. Plots of (αhν)2 versus (hν) yield straight line indicating direct transition occurs with optical band gap energies in the range 1.7 - 2.3 eV. It is also found with increase Zn content the band gap of the films increases. Refractive indices and extinction coefficients have been evaluated in the spectral range (200 - 2500 nm).
Bioderadable Polymers in Food Packaging
American Journal of Engineering Research , 2013,
Abstract: In recent years, there has been a marked increase in the interest in use of biodegradable materials in packaging. The principal function of packaging is protection and preservation of food from external contamination. This function involves retardation of deterioration, extension of shelf life, and maintenance of quality and safety of packaged food. Biodegradable polymers are the one which fulfill all these functions without causing any threat to the environment. The belief is that biodegradable polymer materials will reduce the need for synthetic polymer production (thus reducing pollution) at a low cost, thereby producing a positive effect both environmentally and economically.
International Journal of Pharmaceutical Research and Development , 2011,
Abstract: The aim of this work was to develop simple, precise and rapid UV-Spectrophotometric and RP-HPLC methods for analysis of combined dosage form. UV-Spectrophotometric method was developed for the estimation of individual tablet dosage form. The proposed methods were applied for the determination of drugs in bulk and tablet dosage form. This is achieved by simultaneous equation method. In this method, concentration of each drug was obtained by using the absorptivity values calculated for both drugs at two different wavelength and solving simultaneous equation. The UV-Spectrophotometric method was found to be simple, economical and rapid as compared to RP-HPLC. But, RP-HPLC method was found to be more accurate, precise, robust and rugged.
Car Black Box with Speed Control in Desired Areas for Collision Avoidance
D. R. Pawar,P. Poddar
Engineering, Technology & Applied Science Research , 2012,
Abstract: This paper presents an advanced step to the concept of car black-box in developing a comprehensive vehicle safety system which would not only record the video and audio, but also try to prevent a possible collision by limiting the speed of the vehicle in accident-prone areas. In case of an accident, the time and location (co-ordinates) is sent through GSM to a preset number for immediate rescue and treatment. Recorded data can also be used for forensics, revealing the problems that caused the accident and give manufacturer an idea for improvement. So the motto is to develop an embedded integrated system consisting of a microcontroller, a power supply unit, sensors, memory, a motor driver unit and a GPS/GSM modem.
Evaluation of Performance and Emission characteristics of Turbocharged Diesel Engine with Mullite as Thermal Barrier Coating
P. N. Shrirao,A. N. Pawar
International Journal of Engineering and Technology , 2011,
Abstract: Tests were performed on a single cylinder, four stroke, direct injection, diesel engine whose piston crown, cylinder head and valves were coated with a 0.5 mm thickness of 3Al2O3 .2SiO2 (mullite) (Al2O3= 60%, SiO2= 40%) over a 150 μm thickness of NiCrAlY bond coat. Tests were carried out on standard engine (uncoated) and low heatrejection (LHR) engine with and without turbocharger. This paper is intended to emphasis on energy balance and emission characteristic for standard engine (uncoated) and low heat rejection (LHR) engine with and without turbocharger. Tests were carried out at different engine load and engine speed conditions for standard and low heatrejection engine with and without turbocharger. The results showed that there was 2.18% decreasing on specific fuel consumption value of low heat rejection (LHR) engine with turbocharger compared to standard engine at full load. There was as much as 12% increasing on exhaust gas temperature of LHR engine with turbocharger compared tostandard engine at full load. There was as much as 20.64% increasing on NOx emission of exhaust gas, 22.05% decreasing on CO emission of exhaust gas and 28.20% decreasing on HC emission of exhaust gas of LHR engine with turbocharger compared to standard engine at full load.
Development of a RP-HPLC method for analysis of Triphala curna and its applicability to test variations in Triphala curna preparations
Pawar V,Lahorkar P,Anantha Narayana D
Indian Journal of Pharmaceutical Sciences , 2009,
Abstract: A sensitive, rapid, reverse phase HPLC method is reported for analysis of Triphala Curna using gallic acid, chebulagic acid and chebulinic acid as markers. Validation data for the method has been provided. Unlike methods of recovery testing adopted for synthetic chemicals, a modified approach has been presented here for a formulation like Triphala Curna having three myrobalans in its composition. Data has been provided to demonstrate applicability of the method developed to assess the variation in the Triphala Curna preparations.
B. P. Ladgaonkar,A. M. Pawar
International Journal of Advances in Engineering and Technology , 2011,
Abstract: Wireless Sensors Network is a novel field shows tremendous application potential. To monitor the environmental parameters of high-tech polyhouse the Wireless Sensors Network (WSN) is developed. The heart of this ubiquitous field is the Wireless Sensor Node. Moreover, the field of microcontroller based embedded technology is innovative and more reliable. Therefore, based on an embedded technology and the RF module Zigbee a wireless senor node is designed about highly promising AVR ATmega8L microcontroller and implemented for WSN development. Recently, the modern agriculturists are demanding sophisticated instrumentation for measurement and control of environmental parameters of the polyhouse. To enhance crop yield one has to provide controlled environment to the crop. The humidity is important parameter, which plays vital role on the crop yield. Therefore, a Wireless Sensors Network (WSN) is designed and implemented for monitoring of humidity of polyhouse and the results of implementation are interpreted in this paper.
Rule based Word Morphology Generation Framework
Ramchandra P Bhavsar,B. V. Pawar
International Journal of Computer Science Issues , 2011,
Abstract: Lexical resources are very crucial for any NLP research as well as applications. The richness of a Lexical resource depends not only on the coverage of words but also on the coverage of their morphological forms. As keying in all word forms(morphology) for each word can be monotonous and mechanical exercise, hence automatic generation of the word morphology should be important agenda for Lexicon creation tools, in general and more specific for Indian languages, which are morphologically very rich as compared to English. In our ongoing effort of developing Hindi to Marathi Machine Translation (MT) system, we have developed a rule based framework for generating morphology for a given root (stem) word. The framework relies on rules for generating morphology. We have devised a generic format of rule, which caters for necessary grammatical information as required for generating word morphology for specified language. The framework can generate both inflectional as well as derivational morphology of a given word s.t. satisfaction of rule constraints. The rule management, rule selection and choice of selecting correct word forms are some of the important features of the framework.
GLCM textural features for Brain Tumor Classification
N S Zulpe,V P Pawar
International Journal of Computer Science Issues , 2012,
Abstract: Automatic recognition system for medical images is challenging task in the field of medical image processing. Medical images acquired from different modalities such as Computed Tomography (CT), Magnetic Resonance Imaging (MRI), etc which are used for the diagnosis purpose. In the medical field, brain tumor classification is very important phase for the further treatment. Human interpretation of large number of MRI slices (Normal or Abnormal) may leads to misclassification hence there is need of such a automated recognition system, which can classify the type of the brain tumor. In this research work, we used four different classes of brain tumors and extracted the GLCM based textural features of each class, and applied to two-layered Feed forward Neural Network, which gives 97.5% classification rate.
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