INS Talwar
Mumbai, Maharashtra
INS Talwar is an Indian warship. Its name means “Sword” in Hindi. INS Talwar is a multirole frigate and true to her name, has participated in various operations and exercises since her commissioning.
Talwar was built by the Baltiyskiy shipyard and was launched in May 2000. The ship was commissioned formally into the Indian Navy on 18 June 2003. INS Talwar arrived home at Mumbai’s Naval Dockyard on 12 August 2003, after a long journey from St. Petersburg.
INS Talwar was under maintenance at Naval Dockyard, Mumbai, in coastal climate. INS Talwar was facing problem of frequent turbines failure due to corrosion during refit/ repair work. Each gas turbine (with casing DIA 2.5 meters and total length of approx. 64.0 meters ) was having swept volume of approx. 100 cu.mtr each, were kept in bulk head area of ship on either sides of the ship below upper deck. Refit / repair period was planned for minimum 01 year.
TDS Airgineers visited the dockyard and inspected the site. The culprit was high humidity. Humidity is always high at coastal areas. Since the refit work was undergoing near the sea atmosphere, RH was always more than 80% and temperature around 32°C. Due to which there were frequent turbine failures.
After discussion with the team TDS Airgineers suggested to preserve Ship Gas Turbines under dehumidified conditions.
The general concept behind the use of temporary dehumidification or climate control equipment is to create an environment that reduces the relative humidity in the space below 50%.
During refit work through out the year both Gas Turbines were kept intact without any corrosion inside due to condensation. RH was maintained below 20% at outlet of the Dehumidifier which continuously maintained 34% RH inside turbine.
We considered 10 air changes/ hour to design dehumidifier on open passage of ship upper deck and fed dehumidified air in open loop through openings even in H.I. casing.
TDS Support
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Mr. Deepak Pahwa is the Chairman, Pahwa Group and Director of Technical Drying Services Asia. Pvt. Ltd. The group has 1500+ employees in 6 continents & 11 manufacturing plants.
In 1979, he set up the first company in the group, Arctic India Sales, introducing dehumidification in India. Subsequently, he set-up Technical Drying Services Asia, Desiccant Rotors International, Delair India and Technical Drying services.
An alumnus of IT-BHU, Mr. Pahwa has been honored with several awards, including the “Leadership Award 2013” by IACC for his dynamic leadership. He was also awarded a “National Award 2011 in Research & Development” in (Medium Enterprise) by MSME, the “IT-BHU Alumni Lifetime Achievement Award 2009-10”, and also the “Entrepreneur Of The Year Award” in 1987 in the SME entrepreneur category, to name just a few.
Mr. Pahwa is a Fellow, ASHRAE (American Society of Heating, Refrigeration and Air conditioning Engineers) and serves on several technical committees of ASHRAE. A life member of ASHRAE as well as ISHRAE, he has been recognized and honored by various industry associations for his contribution in enhancing India’s role in providing the best in the next class technologies from India to the world. He has also introduced many new technologies in field of dehumidification, IAQ and many others in India since 1979. He has played an active role in connecting the European Air-conditioning federation, REHVA, to the Indian industry.
Currently, he is the Chairman, Committee on Innovation, PHD Chamber and also serves on the Chamber’s Managing Committee. He has also served as the National President, Indo-American Chamber of Commerce. He has also served as the Convener, FICCI MSME Committee.
He is an advocate of collaborative work for advancing knowledge and works with the specialists, in the field of Adsorption and airgineering technologies, in the academia as well as the industry experts, not only from India but all over the world including Japan, Singapore, Korea, Turkey, Europe and USA.
With almost 50 years of experience in engineering & marketing of HVAC&R, Airgineering & Environmental Control Technologies, his success mantra is “Innovation is Life”. He believes that with the right amount of inspiration, encouragement and knowledge, ordinary people can achieve extraordinary work.
He has institutionalized innovation within the organization so that every employee learns to be an innovator and rewarded for their contribution
For the Society at large, Mr. Pahwa, taking inspiration from his grandfather, Padma Shri, Rai Bahadur Dr. Mathra Das Pahwa, a renowned Eye surgeon and a dedicated philanthropist, Mr. Pahwa has mandated through the group’s CSR initiatives work on providing education, skill development health & hygiene and opportunities in sports for enriching the lives of the underprivileged and differently abled. Another focus area is working towards environmental sustainability, both through the technologies being introduced as well the contributions and support provided to environmentalists.