Participation in International Workshop on Integrated CO2 refrigeration systems for Supermarkets on 12th and 13th March 2018

International Workshop on Integrated CO2 refrigeration systems for Supermarkets was organised at IITMadras on 12th and 13th March 2018. Eighteen students of 4th and 6th semester, Mechanical Engineering Department, NCET along with two faculty members participated in the workshop.

This workshop is a part of the ongoing Indo-Norwegian project (INDEE) being carried out at IIT Madras. The project is approved by the Ministry of External Affairs, Government of Norway through SINTEF and NTNU, Norway. The main aim of INDEE is to eliminate conventional synthetic (man-made) refrigerants which are very popular in developing countries like India.

The students got a better exposure of this emerging technology in the fields of Heating, Air Conditioning and Refrigeration (HVAC). The workshop provided knowledge dissemination by means of lectures by eminent speakers from across the globe.

The demonstration on 35 kW multi-evaporator (freezing at -29oC, refrigeration at – 6oC and air conditioning at 9oC), multi-ejector CO2 system was very educative. Students learnt that this system has heat recovery facility for waste heat utilization for applications such as milk dairy, hospitals, hotels, etc.

India is committed to eliminate the usage of synthetic HCFC and HFC class refrigerants which have high global warming potential (GWP) as per the recent Kigali agreement. A better possible replacement is CO2.The students were able to get a better understanding of the working, the design challenges of CO2 based Refrigeration system and the need for developing such a facility.

Student Participants:

  1. KUMAR SAKET
  2. R
  3. KIRAN KUMAR
  4. CHARAN H A
  5. N R CHANDRA KIRAN
  6. NISHANTH G N
  7. RAHUL GUDA
  8. SAEED FARAZ
  9. SANDEEP R
  10. SANJEEV L D
  11. SUHAS R
  12. THEJANANDA SAGAR T R
  13. KARTHIK B KHANPURE
  14. BHAVYA D C
  15. KAVANA V
  16. SANJANA BIRADAR
  17. SHRAVANI C N
  18. SNEHA DIVAKAR D

 

Staff coordinators

  1. VIJAYKUMAR M PATIL
  2. SMITHA SUMAN

 

The speakers included:

  1. A. Hafner Professor, NTNU, Norway
  2. K. Banasiak Research Scientist, SINTEF, Norway
  3. S. Girotto CEO, Enex, Italy
  4. M. BonfantiDorin, Italy
  5. S. Mahajan LU-VE Group, Italy
  6. R.P. Kamath Global Application Expert, Danfoss India
  7. S. Kumar GM, Metro Bangalore
  8. C. Subramaniam President-Elect, ISHRAE HQ
  9. P. Kumar Professor, IISc Bangalore
  10. M.M. Hazarika Research Scholar, IIT Kharagpur
  11. M.P. Maiya Professor, IIT Madras
  12. S. Singh Post-Doctoral Fellow, IIT Madras

The workshop content included topics like

  • Introduction to INDEE byProf. P. Neksa
  • Current status of natural working fluids by Prof. A. Hafner
  • Current scenario of cold chain and supermarket cooling in India by Mr. C. Subramaniam
  • Standardized CO2 supermarket racks & chillers by Mr. S. Girotto
  • CO2 compressor technology by Mr. M. Bonfanti
  • Heat exchangers for CO2 units by Mr. S. Mahajan
  • Visit to INDEE test facility explained byDr. K. Banasiak
  • INDEE Achievements by Dr. K. Banasiak
  • Design challenges in CO2 based combined power and cooling systems by Dr. P. Kumar
  • Controls and sensors by Mr. R.P. Kamath
  • Implementation of training for contractors &application-based discussion by Prof. A. Hafner
  • Adaptation of new technology by Metro India – A preamble Mr. S. Kumar
  • Performance evaluation of a CO2 system for air conditioning by Mr. M. M. Hazarika
  • Funding opportunities by Prof. A. Hafner

 

The attendees of the workshop included practising engineers, consultants, industry personnel, students and faculties from renowned Institutions and Industries.