Mysuru: A guest lecture programme in association with the Indian Society of Heating Refrigerating and Air Conditioning Engineers (ISHRAE) was held at Institution of Engineers-India (IEI) premises recently. The topic of the day was ‘Air Conditioning System and Operational Challenges of Railway Coaches.’ R. Suresh, Chairman, IEI Mysuru, presided over the function. D.K. Dinesh Kumar…