Research and technology developed at the Cryogenic Engineering Centre
Prof. V. V. Rao’s group is working for the development of HTS based motors, power cables, fault current limiters, energy storage devices, transformers, for Indian Power Sector. The group also works in parametric evaluation and thermo hydraulics of CIC conductors used in high energy superconducting magnets for nuclear fusion application. Prof. V V Rao has developed an advanced laboratory for vacuum technology and process applications to train technicians, engineers, scientists and teachers working in the field of vacuum and related areas.
These compact heat exchangers are built by stacking high thermal conductivity perforated plates, interleaved with low thermal conductivity insulating spacers, and bonding them by intermetallic diffusion bonding. Dr. T. K. Nandi and his team have made several such heat exchangers in house with a maximum of 100 plate-spacer pairs. Desired performance of these heat exchangers has been demonstrated.
Developed a sorption refrigeration cycle for producing uninterrupted cooling and as a proof of the concept, a table top model has been fabricated. Periodic charging/ discharging of a column filled with activated carbon (adsorbent) using gaseous nitrogen (adsorbate) has been found generating cooling continuously (Indian Patent (23/KOL/2011)
The study of multiferroic materials that show the coupling of magnetization and electrical polarization, has become one of the most popular areas in condensed matter physics. The revival of research into materials shows, such a coupling is challenging due to crystal/magnetic symmetry constraints. Dr. Adyam's group working on magnetic oxide insulators offer magnetodielectric effect that is unrestrained by symmetry issues; interplay of spin and electrical dipoles cause significant magnetodielectric effect in these systems.
Gas hydrates are being explored for many important applications; more significant among these are as energy source and energy storage medium, and for carbon dioxide sequestration. Collaborative research is being pursued with industry and government organizations to explore these two aspects.
The demand for electric power keeps on growing and electrical networks are becoming more interconnected while transmitting the generated energy to the distant load centres. In order to meet the ever-increasing energy demand, the grid modernization is a must. The High Temperature Superconducting (HTS) cables can offer a better alternative to the existing overhead lines for bulk power transmission, as these cables can transmit and distribute hitherto impossibly large electric power with very low loss. Further these cables transmit power at low voltages and high currents, thereby avoiding the high voltage safety problems. In addition HTS transmission technology can offer very high power handling capacity, mitigating load congestion, minimal right-of-way (ROW).