Talegaon Dabhade, India
Talegaon Dabhade, India

Tolani Maritime Institute also known as TMI is a maritime college in Induri, Pune, India which was established in 1998. It has about 1,500 students in its campus based and distance learning programmes. It was set up by The Tolani Group, a ship-owning and ship management company, which perceived a need for India to produce increasing numbers of well-educated marine officers. Wikipedia.


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El Rhafiki T.,British Petroleum | Kousksou T.,University of Pau and Pays de l'Adour | Jamil A.,British Petroleum | Jegadheeswaran S.,Tolani Maritime Institute | And 2 more authors.
Solar Energy Materials and Solar Cells | Year: 2011

Heat transfer characteristics during crystallization and melting of the phase change material (PCM) dispersed inside an emulsion are investigated theoretically and experimentally. The dispersed PCMs are hexadecane, octadecane and water. The crystallization and melting processes are not symmetrical because of the supercooling phenomenon induced by the smallness of the emulsion droplet sizes. Nucleation laws are used to simulate the supercooling phenomenon. Energy analysis is carried out to understand the behavior of the emulsion using two paraffins (octadecane and hexadecane). The effects of different parameters such as the mass fraction of PCM and the stabilization temperature on thermal behavior of emulsion are also analyzed. © 2011 Elsevier B.V.


Kousksou T.,University of Pau and Pays de l'Adour | Jamil A.,École de Technologie Supérieure of Montreal | Arid A.,University of Pau and Pays de l'Adour | Jegadheeswaran S.,Tolani Maritime Institute | Zeraouli Y.,University of Pau and Pays de l'Adour
International Journal of Refrigeration | Year: 2012

In this paper a physical model is built to investigate the non-isothermal freezing kinetic in ice slurry systems. The global Nakamura-type kinetics is adopted to describe the nucleation rate during the freezing process. A genetic algorithm is used to determine the nucleation probability of ice slurry. The finite difference method is utilized to solve the heat transfer problem, and the source term method is employed to handle the absorbed latent heat. An experimental example of a cylindrical cell is used to test this model. From a comparison with the experimental result, the computed cooling curve is found to be very close to the experimental one. © 2012 Elsevier Ltd and IIR. All rights reserved.


Jegadheeswaran S.,Tolani Maritime Institute | Pohekar S.D.,Tolani Maritime Institute | Kousksou T.,Laboratoire Of Thermique Energetique Et Procedes
Clean - Soil, Air, Water | Year: 2011

Phase change material (PCM) employed latent heat thermal storage (LHTS) system has been showing good potential over the years for energy management, particularly in solar energy systems. However, enhancement in thermal conductivity of PCMs is emphasized as PCMs are known for their poor thermal conductivity. In this work, the thermal performance of a shell and tube LHTS module containing PCM-metal particles composite is investigated while charging and is compared with that of pure PCM system. The effect of particle dispersion on latent heat capacity of pure PCM is also analyzed. Enthalpy based governing equations are solved numerically adopting FLUENT code. Exergy based performance evaluation is taken as a main aspect. The numerical results are presented for various operating conditions of heat transfer fluid (HTF) and indicate considerable performance improvement of the system when particles are dispersed. Phase change materials are known for poor thermal conductivity. Here, the thermal performance of a shell and tube LHTS module containing PCM-metal particles composite is investigated while charging. The numerical results are presented for various operating conditions of heat transfer fluid and indicate considerable performance improvement when particles are dispersed. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Subrahmanyam C.V.S.R.,Tolani Maritime Institute
AIP Conference Proceedings | Year: 2010

Noise is an unwanted sound that affects human and environment if not controlled properly. In the present article an effort is made to reduce noise in geared transmission systems by modeling noise. Numerical solution methods are suggested at the end. Energy considerations in geared transmissions are discussed. © 2010 American Institute of Physics.


Kale R.V.,Rajiv Gandhi Institute of Technology | Pohekar S.D.,Tolani Maritime Institute
Renewable and Sustainable Energy Reviews | Year: 2012

The growth potential of any state is linked with infrastructure and electricity infrastructure is the most important parameter for economic growth. Maharashtra, a prominent state in India consumes 12 per cent of India's electricity. Maharashtra's power sector is facing the electricity deficit and shortage since early 2005. On the other hand, industrial and service sectors are rising in the state. The present paper discusses electricity situational analysis of the state. Electricity demand analysis has been presented and comparison of state electricity demand vis-à-vis Mumbai's demand (state capital) has been carried out for two years. Variation for monthly average demand for two years and load shedding have also been analyzed. Power supply situation analysis and analysis of major power suppliers have been carried out. The State Load Distribution Center data is used to depict the load variation for a typical day. Interventions needed to sustainably meet the growing demands are also discussed. © 2012 Elsevier Ltd. All right reserved.


Jegadheeswaran S.,Tolani Maritime Institute | Pohekar S.D.,Tolani Maritime Institute | Kousksou T.,Avenue Of Luniversite
Renewable and Sustainable Energy Reviews | Year: 2010

Phase change material (PCM) based latent heat thermal storage (LHTS) systems provide an attractive solution to bridge the gap between energy source and demand, if source is intermittent and time dependent. The optimization of LHTS systems is not necessarily on the basis of performance study through energy analysis, but on the basis of exergy based performance study. The exergy based performance evaluation and subsequent optimization of LHTS units have been a growing interest among the researchers in recent years. This can be seen through the various works reported in the literature. This paper reviews the various procedures adopted for the exergy based performance evaluation of LHTS units. The influence of operating and design parameters on the exergy stored/retrieved and thus, on the optimization is addressed as a main aspect. The need of exergy analysis for the comparative evaluation of LHTS systems with performance enhancement techniques is emphasized. Thermoeconomics methods applicable to LHTS systems are also presented in this paper. © 2010 Elsevier Ltd. All rights reserved.


Kale R.V.,Rajiv Gandhi Institute of Technology | Pohekar S.D.,Tolani Maritime Institute
Energy Policy | Year: 2014

Forecasting of electricity demand has assumed a lot of importance to provide sustainable solutions to the electricity problems. LEAP has been used to forecast electricity demand for the target year 2030, for the state of Maharashtra (India). Holt's exponential smoothing method has been used to arrive at suitable growth rates. Probable projections have been generated using uniform gross domestic product (GDP) growth rate and different values of elasticity of demands. Three scenarios have been generated which include Business as Usual (BAU), Energy Conservation (EC) and Renewable Energy (REN). Subsequent analysis on the basis of energy, environmental influence and cost has been done. In the target year 2030, the projected electricity demand for BAU and REN has increased by 107.3 per cent over the base year 2012 and EC electricity demand has grown by 54.3 per cent. The estimated values of green house gas (GHG) for BAU and EC, in the year 2030, are 245.2 per cent and 152.4 per cent more than the base year and for REN it is 46.2 per cent less. Sensitivity analysis has been performed to study the effect on the total cost of scenarios. Policy implications in view of the results obtained are also discussed. © 2014 Elsevier Ltd.


Dave D.,Tolani Maritime Institute
Transactions of the Royal Institution of Naval Architects Part A: International Journal of Maritime Engineering | Year: 2010

This paper presents a novel approach for designing a completely automatic Oil Discharge Monitoring and Control System (ODMCS) for the discharge of oily mixtures/effluents from cargo area and slop tank of oil tankers. The Global Positioning System (GPS) and modified World Vector Shorelines (WVS) data are used for the development of a system, which completely automates the working of ODMCS to comply with Marine Pollution (MARPOL) regulations. The system level hardware and software design for the same is discussed. An animated simulator for the completely automatic ODMCS is developed. The developed system may also be used as ODMCS emulator when main ODMCS fails. The results obtained by applying the test inputs to such a system have been presented and verified against the requirements of MARPOL regulations. © 2010: The Royal Institution of Naval Architects.


Jegadheeswaran S.,Tolani Maritime Institute | Pohekar S.D.,Tolani Maritime Institute | Kousksou T.,Avenue Of Luniversite
Energy Procedia | Year: 2012

The performance enhancement of a shell and tube latent heat thermal storage (LHTS) system due to dispersion of conductivity nano-particles is investigated. Two phase change materials (PCM) are considered, one is organic PCM (paraffin wax) and the other is inorganic (hydrated salt). The numerical study involves both charging and discharging modes. The performance enhancements of the two PCMs are compared in terms of exergy stored/recovered and exergy efficiency. © 2011 Published by Elsevier Ltd.


Jegadheeswaran S.,Tolani Maritime Institute | Pohekar S.D.,Tolani Maritime Institute
Journal of Renewable and Sustainable Energy | Year: 2010

Phase change material (PCM) based latent heat thermal storage (LHTS) systems offer a challenging option to be employed as an effective energy storage and retrieval device if the energy source is intermittent and time dependent. However, the performance of LHTS systems is limited by the poor thermal conductivity of PCMs employed. The addition of high conductivity particles is proposed as one of the promising performance enhancement techniques for LHTS. In our study, an attempt is made to investigate the performance enhancement of a shell and tube storage unit applicable to solar water heaters due to the addition of high conductivity particles (copper) through exergy analysis. The enthalpy based two dimensional-transient equations are solved numerically for discharging process using FLUENT-a commercial computational fluid dynamics code. The numerical results show good agreement with experimental results available in the literature. The thermal behavior and performance of particle dispersed PCM unit in terms of exergy efficiency and total exergy recovered are compared with that of pure PCM unit. It is observed that the discharging time is reduced by around 28% by adding particles of volume fraction 0.1 and by around 85% with 0.6 volume fraction. However, the decrease in discharging time is not much appreciable beyond the particle volume fraction of 0.4. Similarly, the exergy efficiency and total exergy recovered are increased by 12% and 15%, respectively, with 0.1 volume fraction and by 50% and 60%, respectively, with 0.4 volume fraction. Different Reynolds numbers (i.e., Re=200-10 000) are considered in the numerical trials to investigate the influence of mass flow rate of heat transfer fluid (HTF) on the performance of the system. The results reveal that the role of HTF mass flow rate in increasing the overall thermal performance of LHTS unit is insignificant. © 2010 American Institute of Physics.

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