Learn bits
Science & Tech.
Mahesh

06/04/23 06:40 AM IST

Dhawan-II engine

In News
  • Recently, a private space vehicle company Skyroot Aerospace test-fired its 3D-printed Dhawan II engine.
About Dhawan- II
  • It is a 3D-printed cryogenic engine developed by the Skyroot Aerospace for its heavier vehicle, the Vikram II rocket.
  • It uses a 3D-printed torch igniter and bellows actuated cryo-injection valve with a quick response time.
  • It utilises two high-performance rocket propellants, liquid natural gas (LNG) and liquid oxygen (LoX), which require cryogenic temperatures (below -150° Celsius) for storage and operation.
  • A cryogenic upper stage enhances the payload-carrying capacity of a rocket.
  • The cryogenic engine series is named in honour of Dr Satish Dhawan, an Indian rocket scientist.
3D Printing
  • 3D printing or additive manufacturing is a process of making three-dimensional solid objects from a digital file.
  • The creation of a 3D-printed object is achieved using additive processes.
  • In an additive process, an object is created by laying down successive layers of material until the object is created. Each of these layers can be seen as a thinly sliced cross-section of the object.
  • 3D printing enables you to produce complex shapes using less material than traditional manufacturing methods.
Cryogenic Engine
  • A cryogenic engine/ cryogenic stage is the last stage of space launch vehicles which makes use of Cryogenics.
  • Cryogenics - the study of the production and behaviour of materials at extremely low temperatures (below -150℃) to lift and place the heavier objects in space.
  • It uses Liquid Oxygen (LOx) and Liquid Hydrogen (LH2) as propellants.
  • They are one of the hardest to develop and so far only 6 countries have these launch vehicles - the US, China, Russia, France, Japan, and India.
Source- Indian Express

More Related Current Affairs View All

04 Aug

Maharashtra’s new security Bill

'The Maharashtra Legislature passed the Maharashtra Special Public Security Bill or a ‘Bill to provide for effective prevention of certain unlawful activities of Left Wing Ex

Read More

04 Aug

New Project to curb rhino poaching through radioactive isotope injections

'Recently, South African scientists injected radioactive material into live rhinoceros horns to make them easier to detect at border posts in a pioneering project aimed at curbing

Read More

04 Aug

National Sports Governance Bill

'Recently, the Ministry of Youth Affairs and Sports introduced the National Sports Governance Bill, 2025 in the Lok Sabha. ' The National Sports Governance Bill, 2025 draws from

Read More

India’s First Ai-Driven Magazine Generator

Generate Your Custom Current Affairs Magazine using our AI in just 3 steps