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4 publications

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    Study on Improvement of Air Quality in Underground Car Parking Area Using Jet Fan

    By Jitul Baruah, Bhargav Borah, Kalyan Kumar Das

    Abstract: In recent years, jet fans have become a popular alternative to traditional ducted systems for ventilating pollutants in large parking areas like underground car parks and tunnels. Proper forced draft ventilation is necessary to remove harmful pollutants, such as vehicle exhaust fumes and smoke in the event of a fire. It is crucial to have a quantitative understanding of how exhaust gases, containing various toxic particles, propagate in these areas.So …

    Published in Trends in Transport Engineering and Applications · Vol. 10, Issue 2, 2023 · pp. 29–44 Read article

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    A review of the reported technologies to segregate municipal solid waste into dry and wet waste based on their moisture content

    By Koustuvmoni Bharadwaj, Kalyan Kumar Das

    Abstract: This paper deals with the various techniques used to segregate municipal solid waste based on its size and types. We study various research works and ongoing industry practices and finally summarize a general process that is being used to segregate municipal solid waste. This paper also addresses the major problem related to segregating waste as wet and dry and the existing technologies that are being used in industries to segregate …

    Published in Journal of Geotechnical Engineering · Vol. 9, Issue 3, 2022 · pp. 27–36 Read article

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    Interference Effect between Prismatic Buildings Subjected to Microburst Wind

    By Kalyan Kumar Das, Kalyan Prasad Sinhamahapatra, Amit Kumar Ghosh

    Abstract: Severe thunderstorms are important weather phenomena which impact on various facets of national activity like civil and defense operation, particularly aviation, space vehicle launching and agriculture in addition to its damage potential to life and properties. One of the most important events in the thunderstorms is the “Downburst”. Downbursts occur when a column of descending air reaches the ground and bursts out violently. This downward motion abruptly changes direction and …

    Published in Journal of Industrial Safety Engineering · Vol. 1, Issue 1, 2014 · pp. 23–31 Read article

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    Optimization of Roof angle for Sloping Roof Buildings under Extreme Wind Conditions

    By Hirak Ranjan Das, Kalyan Kumar Das

    Abstract: A downburst that occurs during a thunderstorm is a strong downward current of wind which comes down with high speed from the cloud level and hits the ground. After hitting the ground it spreads radially outward in all directions. These are generally destructive in nature. There are evidences of downburst causing extensive damages to buildings, electrical installations etc. In India thunderstorms often occur during pre-monsoon and post-monsoon seasons particularly in …

    Published in Journal of Construction Engineering, Technology & Management · Vol. 9, Issue 1, 2019 · pp. 1–5 Read article

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