- Groundwater and Isotope Geochemistry
- Superconducting Materials and Applications
- Physics of Superconductivity and Magnetism
- HVDC Systems and Fault Protection
- Groundwater flow and contamination studies
- Groundwater and Watershed Analysis
- Radioactivity and Radon Measurements
- Geochemistry and Geologic Mapping
- Radioactive contamination and transfer
- Geothermal Energy Systems and Applications
- Hydrocarbon exploration and reservoir analysis
- Geological and Geochemical Analysis
- Thermal Analysis in Power Transmission
- Water management and technologies
- Microgrid Control and Optimization
- Water resources management and optimization
- Reservoir Engineering and Simulation Methods
- Arsenic contamination and mitigation
- Isotope Analysis in Ecology
- Radioactive element chemistry and processing
- Mineral Processing and Grinding
- Homelessness and Social Issues
- Energy and Environment Impacts
- Geochemistry and Elemental Analysis
- Optimal Power Flow Distribution
Bhabha Atomic Research Centre
2008-2022
National Institute of Technology Jamshedpur
2021
Institute of Human Behaviour and Allied Sciences
2019
Bhabha Atomic Research Center Hospital
2011
Southwire Company has installed, tested and is operating the first real-world application of a high-temperature superconducting cable system at its headquarters in Carrollton, GA, USA. The powering three manufacturing plants, marking time company successfully made difficult transition front laboratory to practical field an HTS cable. cables are rated 12.4-kV, 1250-A, 60 Hz cooled with pressurized liquid nitrogen temperatures from 70-80 K. Before placing into service, extensive offline...
The use of high-temperature superconducting materials for power-transmission cable applications is being realized in prototype situations. It well known that AC loss decreases as the temperature conductor decreases. Also, thermal losses are higher at lower temperatures, owing to increased difference between ambient and cryogenic operating conditions. Both counterflow parallel-flow cooling arrangements have been proposed literature significantly affect distribution along cable. In this...
The declining trends in water levels and degrading quality most parts of India are major concerns which need to be addressed. A hydrochemical study was carried out southwest Punjab, understand the groundwater its suitability for drinking agriculture under changing hydrogeological conditions land-use patterns. results suggest that locations have is unfit use both irrigational activities; 20% samples from Muktsar were fit seasons, whereas Faridkot district 39% purposes, increased 63%...
The first industrial demonstration of a three-phase, HTS power transmission cable at the Southwire manufacturing complex is in progress. One crucial issue during operation 30-m cables whether they can survive fault current (which be over an order magnitude higher than operating current) event short circuit and how cryogenic system would respond. Simulated fault-current tests were performed ORNL on 5-m cable. This single-phase was constructed same way as also rated for 1250 A 7.2 kV AC...
The Oak Ridge National Laboratory (ORNL) and the Southwire Company have used ORNL 5 m cable test facility to develop high-temperature superconducting (HTS) cables terminations support first industrial demonstration of an HTS at manufacturing complex. Two m, cold dielectric been tested for direct current (DC) voltage, alternating (AC) losses, AC withstand 18 kV, thermal-hydraulic performance, heat load, long-term operation rated voltage (7.2 kV) (1250 A). separate termination concepts, one...
Two 500-A class prototype high-temperature superconducting (HTS) power cables have been constructed by Southwire Company and tested at Oak Ridge National Laboratory (USA). In the first cable, no insulation was used to separate individual HTS tapes. second Kapton tape insulate tapes between successive layers for study of AC loss current distribution. The were with both DC currents in liquid nitrogen from 77 69 K. Both achieved critical current, I/sub c/ greater than 500 A. A calorimetric...
Abstract Environmental isotope studies of groundwaters carried out in the arid region Rajasthan, India, suggest that recharge to shallow groundwater occurs as a result direct infiltration precipitation and/or through river channels during episodic floods. In many parts Rajasthan deep fresh is available, which was recharged past when climatic conditions were more favorable than at present. However, negligible modern and over-exploitation resources have led deterioration quality Bhadka–Bheemda...
Since 1995 Southwire Company and Oak Ridge National Laboratory (ORNL) have jointly designed, built, tested nine, 1 m long, high temperature superconducting (HTS) transmission cable prototypes. This paper summarizes the AC loss measurements of five cables not reported elsewhere, compares losses with each other theory developed by Dresner. Losses were measured both a calorimetric an electrical technique. Because broad resistive transition HTS tapes, can be operated stably beyond their critical...