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Research in Usha Rama



Dr.B.N.Srinivas, BAGS DST Project

National project on reducing global warming has been sanctioned by Department of Science & Technology, New Delhi to Prof. B.N.Srinivas, Usha Rama College of Engg. & Tech., Telaprolu. This project is first of its kind bagged by any of Pvt. Engg. Colleges in Andhra Pradesh. Selection process was done in three stages. Many reputed institutions like IIT's, National research laboratories were participated in this selection process. Among them Usha Rama College and Indian Institute of Chemical Technology, Hyderabad are the only institutions got the prestigious projects from Andhra Pradesh. The summary of the project is preparation of carbon dioxide adsorbing nano materials from rice husk. Rice husk is a waste material, being used for burning bricks and for preparation of food materials in hotels etc. By this project, waste materials like rice husk is given added value. Global warming is increasing due to several factors like deforestation, industrialization, urbanization etc. All these factors are directly or indirectly connected to the liberation of carbon dioxide in to atmosphere due to which several changes are occurring in environment. These carbon dioxide adsorbents synthesized from rice husk will be place at flew gas pipes in industries where carbon dioxide will be adsorbed by them. Till now this type of materials are developed from other sources but they have reported only 120 gr. of CO2 per kg of the adsorbing material synthesized. Dr. Srinivas has proved at bench mark level that these materials synthesized by their team is going to absorb around 200 gr. Of CO2 per kg of adsorbing material. The composite material prepared will be applied in increasing biogas efficiency by reducing CO2 content. The adsorbed CO2 gas can be recycled for preparation of certain laboratory chemicals like washing soda, baking soda and other bottling companies. DST committee got impressed with these preliminary reports and have sanctioned the project for 3 years and providing around Rs. 25 lakhs financial assistance. DST also granted permission to Dr. Srinivas to recruit research students for successful completeion of the project and for doctoral degrees. To complete this project Dr. Srinivas and Usha Rama college has collaborated with Indian Institute of Chemical Technology, Hyderabad, a CSIR laboratory with international reputation.

  • Papers Published by ECE department in 2015-2016 View Details
  • Design and implementation multiplier using power gating with NBTI aging benefits in INTERNATIONAL JOURNAL OF RESEARCH IN ELECTRONICS AND COMPUTER ENGINEERING.ISSN 2348-2281 july-september 2018 View Publication
  • News in Print Media Paper cut
  • News in Print Media Paper cut

Department of Electrical and Electronics Engineering:



Research Project Title: System Optimization of Variable Speed Drives using coupled simulations

Total Grant sanctioned for the project is: 16,60,800/-

Awarding Body: Science and Engineering Research Board (SERB).


Variable Speed Drives (VSDs) are increasingly used in many commercial and industrial applications because of many advantages in control and energy saving. The bearing current, stator winding, cable faults are most frequent in PWM fed VSDs due to harmonics generated by switching converters used in PWM inverter, nearly 30% according to an IEEE motor reliability studies. Motor life has historically been from six to ten years with sinusoidal 50Hz power to the motor. However, with modern variable speed drives (VSDs), some users are seeing stator winding insulation, bearing and cable damage in as little as one week or one month of installation due to unwanted heat generation and increased power consumption. In order to protect VSD investment, effective or optimized design of VSD is highly recommended for improving combined system performance and to avoid unwanted shut down of drive system due to various mechanical and electrical faults.

The purpose of this work is to illuminate the field and issues in this "voltage-source-converter - classical electrical machine" system in considerable depth. Simulations shall identify which aspects of the voltage waveform cause which effect inside the machine. This can eventually serve to optimize the entire VSD & machine system. Possible outcomes of the work are specific cause effect relations, both qualitatively and quantitatively.