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.

Performance analysis of a 2.1MW wind turbine in a wind farm at Mulana in Jaisalmer district of Rajasthan

Abstract: This paper analyses the performance of a 2.1 MW Suzlon S-88 wind turbine in a wind farm, located at Mulana, Jaisalmer district of Rajasthan. Wind farm consists of 49 turbines of 2.1 MW each with a total farm capacity of 102.9 MW. Various parameters such as machine availability, grid availability, system availability and energy production were obtained from available data of the wind turbine for one year during April 2015 to March 2016. Capacity factor is calculated from the data. The annual capacity factor of wind turbine is found to be 15.65% with the total energy production of 2886.41 MWh during April 2015 to March 2016. It is observed that grid availability is higher than machine availability during all the months of the year 2015–16.

Back Bias Induced Modeling of Subthreshold Characteristics of SOI Junctionless Field Effect Transistor (JLFET)

Abstract: In the present article, the modeling of subthreshold current of asymmetric silicon-on-insulator (SOI) Junctionless Field Effect Transistors (JLFETs) is done. The switching properties are further investigated by formulating the subthreshold swing characteristics based on the minimum potential concept. The model adopts the effect of substrate-induced surface potential (SISP) effect as well as source/drain depletion region with necessary changes in the boundary conditions at the silicon-buried oxide (BOX) interface. The developed model is beneficial for the optimization of low power switching characteristics for SOI JLFETs. The model results are validated with the numerical simulation results obtained from Sentaurus TCAD simulator.

Study Of Harmonics And Transient Stability On A Doubly Fed Induction Generator Based Wind Farm

Abstract: Sustainable power sources have picked up a ton of significance in the ongoing past because of its accessibility in bounty and contamination-free nature. Wind Power Age contrasted with the other sustainable power source sources has created at a fast pace. Like a large portion of the regular Power plants, Wind Power plants must guarantee the nature of intensity conveyed to the lattice. harmonic is the most significant Power Quality Issues identified with the Wind Power plants which happen because of successive exchanging of the Power Converters and variable Wind speed. This paper presents the Harmonic study in the DFIG Wind Farms. A 126 MW wind plant was considered for the study and an appropriate technique was embraced to decrease the Harmonic content. The study and design were conveyed by the Indian Grid Codes. The outcomes gotten show the Power Quality of the DFIG Wind Farm regarding %THD (Total Harmonic Twisting). Additionally, an appropriate time interval of fault occurring and clearing is taken for transient stability study.

Comparative CFD analysis of helical shaped earth air pipe heat exchanger using water tube as a thermal reservoir using different pipe materials

Abstract: Common configuration of EAPHE system usually consider single or U shaped configuration, which requires large installation area and are not suitable for installation under small home or office setup. This major drawback can be overcome by using helical shaped air pipe, which reduces installation area up to 60%. Performance of EAPHE deteriorates after long run due to thermal saturation in the soil near to pipe surface. In this paper problem of thermal saturation of soil is attempted by proposing water pipe of three different pipe materials. Water pipe act as thermal reservoir to absorb heat from surrounded soil and maintains constant heat transfer after 24 hours of long run. Thermal performance of Earth Air Pipe Heat Exchanger (EAPHE) has been investigated under four different type of model developed using helical air pipe and comparison were made in terms of temperature drop, soil temperature at 0.05m and 0.25 m from pipe, change in water temperature, COP and effectiveness of the system for the continuous 72hours of run.