Design and Analysis of Turbo Jet Engine

This project endeavors to create a turbojet engine using Catia software. The design draws upon extensive research from industry experts and historical advancements in jet engine technology. Carefully chosen design methodologies were employed to streamline the engine design process, with the primary goal being the development of a fully functional turbojet engine. The landscape of air travel has evolved significantly, enabling swift global travel. However, the aviation industry faced limitations in the past, relying on Rotary Piston IC engines characterized by constrained travel speeds and distances, high fuel consumption, and elevated transportation expenses. The advent of turbojet engines, classified as Rotary-Reaction Turbine Engines, marked a pivotal advancement in aviation. In contrast to Rotary piston engines, turbojet engines demonstrate superior efficiency, catalyzing the subsequent evolution of engines like turbofan, turboprop, and turbo shaft engines as enhancements over the original turbojet design

An assessment of the impact of a nation-wide lockdown on air pollution – a remote sensing perspective over India

Abstract. The nation-wide lockdown imposed over India from 25th March 2020 onwards, in response to the COVID-19 pandemic, placed severe restrictions upon the industrial and transport sectors, which together form a significant chunk of anthropogenic emissions of pollutants into the atmosphere. Atmospheric concentrations of Nitrogen dioxide (NO2), carbon monoxide (CO) and aerosol optical depth (AOD) for lockdown and pre-lockdown periods were investigated with observations from Aura/OMI, Terra/MOPITT, Sentinel-5p/TROPOMI and Aqua-Terra/MODIS satellite sensors. Mean NO2 levels over India during the lockdown period showed a dip of 17 % as compared to pre-lockdown period and a decrease of 18 % against the 5-year average. Over New Delhi in particular, there was a sharp decrease of 62 % in NO2 levels as compared to 2019 and a decline by 54 % relative to the preceding 5-year period (2015–2019). Aerosol levels reduced over the country by ~ 24 % from the 5-year mean levels, with a marked reduction over the Indo-Gangetic plains region. An increase in CO levels was noticeable, probably due to its longer life-time as compared to NO2 and aerosols. This study also reports the rate of change of NO2, CO and AOD, indicating increase/decrease in pollutant emissions over the different states of India. </jats:p