Rajasthan Technical University

About: Rajasthan Technical University is a education organization based out in Kota, Rajasthan, India. It is known for research contribution in the topics: Photovoltaic system & PID controller. The organization has 716 authors who have published 1084 publications receiving 4530 citations. The organization is also known as: RTU.

Modeling of water utilization in hydroelectric power plants on the Daugava River

Abstract: In this paper the task of modeling water utilization in the hydroelectric power plants on the Daugava River is outlined. Difficulties caused by the complexity of the task are discussed and the necessity to decompose it is considered. Unit commitment proves to be especially important subtask as it introduces several constraints and limitations. A possibility to solve it using dynamic programming approach has been offered and the veracity of the mathematical model of reservoirs has been tested in this paper.

Effect of air density on kite power

Abstract: Many researchers have analyzed and gave mathematical equations for the motion of the kite. Different mathematical models for the estimation of kite power has been made by Lloyd, Houska, Argatov I. et al., Jerome Marchand, Pauli Rautakorpi et al. between 1980 to 2013. However in their models for estimation of power and maximum power from kite, they have considered density as constant and is equal to the density of air at the sea level (density of air equals to 1.225 Kg/m3). In this paper, effect of air density on kites flying at high altitude was considered and calculations were made for the estimation of maximum power with air density at the sea level and the air density at the flying height of the kite. For this purpose data given by Pauli Rautakorpi et al. has been considered for estimation of maximum power of the kite. Results were compared for each of the five models, density being constant and density varying with height of the kite. All the five models are compared each other for maximum power with actual air density.

Selection of electrolyzer-fuel cell combination for supply of water and electricity in remote areas

Abstract: In the present scenario, availability of pure drinking water and electricity are the two major factors that are affecting the living conditions of the people in the developing and underdeveloped countries. In this paper, use of hydrogen for generating electrical energy with the added advantage of producing pure water is discussed. Hydrogen as an energy carrier provides as alternative way of transporting electricity, energy storage, energy generation, and pure water production. Hydrogen can be produced through the electrolysis of water, by using electricity generated from renewable sources. In this paper, fifteen commercial electrolyzers are compared on the basis of different operating parameters. Also, fifteen fuel cells are considered for comparison on the basis of different operating parameters. Electrolysis efficiency of all electrolyzers and fuel cell efficiency of all fuel cells are calculated. Electrical efficiency is calculated for the combination of top five electrolyzers with top five fuel cells and best electrolyzer-fuel cell combination is selected. The amount of water produced by fuel cells is also estimated. It can be concluded that in the order of electrolysis efficiency (energy consumption kWh/Nm3 H2), the five electrolyzer models are E1, E2, E3, E4, and E5 with E1 having maximum electrolysis efficiency or lowest energy consumption. Similarly, for the fuel cells in order of efficiency, fuel cell models are arranged as F1, F2, F3, F4, and F5 with F1 having maximum fuel cell efficiency. Electrical efficiency is calculated from electrical energy produced using different electrolyzer-fuel cell combinations for hydrogen transport distances of 100 km, 500 km, and 1000 km respectively. The highest electrical efficiency of 32.85%, 31.88%, and 30.66% are obtained for the combination E1-F1 for 100 km, 500 km, and 1,000 km distances respectively. Thus for electrolyzer-fuel cell combination, E1-F1 is found to be best for all the cases of 100 km, 500 km, and 1,000 km hydrogen transport distances respectively.

A new gate for low cost design of all-optical reversible logic circuit

Abstract: Reversible computing offers a possible solution for high performance computing and low power consumption. For hardware implementation of reversible logic, optical computers are emerging as one of the promising alternative. Recently, in the literature, reversible logic gates and combinational circuits have been proposed in optical domain using Semiconductor Optical Amplifier (SOA) based Mach Zehnder interferometer (MZI) switches due to its significant advantages such as high speed, low power, fast switching and ease of fabrication. Optical reversible designs have used ad-hoc approaches and require high cost in terms of MZI switches, Beam Splitters (BS), and Beam Combiners (BC) as well as optical delay. In this work, an optical reversible MNOT gate and all-optical realization of 4×4 Toffoli Gate have been proposed which is used in all-optical realization of optimized reversible combinational circuits. A general design approach to realize all-optical reversible circuits based on MZI switches has been proposed first time in the literature. Optimized all-optical reversible 2×1 multiplexer and full adder circuits have been designed using these proposed gates and design approach. All-optical reversible designs of 4×1 multiplexer, 1×4 Demultiplexer and 3to8 Decoder circuits have also been presented in this work first time in the literature. Our results have shown significant improvements over existing designs in terms of MZI switches, BS, BC and optical delay.

A Conceptual Framework for Research on Investment Determinants among Non-Institutional Investors

Abstract: In modern economic world income plays a very vital role in every one’s daily life. Investment has been one of the major concerns for the Non-institutional investors as their today’s small savings would be meeting with the expenses of tomorrow. The risk and returns proportion from each of these investment options varies from one to another. Investor’s behavior plays an important role in investment decision making, which is influenced by many a factors during the process of investment decision making. Today, investors have many avenues of investment with different features to cater their present and future needs. The focus of this paper (non-institutional investors), unlike institutional investor, suffers from various sort of perception while deploying their funds due to their low investible funds, risk taking capacity, low investment education and their exposure to evaluate the available information. This situation of the non-institutional investors motivates to study as these investors are the finest source of small savings in investment set-up of the country. This paper presents a conceptual framework for research on investment determinants among noninstitutional investors to be carried out further by the researchers.