Air Independent Propulsion System (AIP)

Context:

The Defence Research and Development Organisation (DRDO) programme to build a fuel cell-based Air Independent Propulsion (AIP) system for Indian Naval Submarines.

What is AIP?

Air Independent Propulsion (AIP) has a force multiplier effect on the lethality of a diesel-electric submarine as it enhances the submerged endurance of the boat, several folds.
Fuel cell-based AIP has merits in performance compared to other technologies.
Operation of the land-based prototype engineered to the form-and-fit of a submarine
In a fuel cell AIP, an electrolytic fuel cell releases energy by combining hydrogen and oxygen, with only water as the waste product.
The cells are highly efficient, and do not have moving parts, thus ensuring that the submarine has a low acoustic signature

Importance of AIP:

Submarines are essentially of two types: conventional and nuclear. Conventional submarines use a diesel-electric engine, and must surface daily for oxygen for fuel combustion. If fitted with an Air Independent Propulsion (AIP) system, the sub needs to take in oxygen only once a week.
While many naval powers, including India, have acquired nuclear-powered submarines for deep-sea operations, conventional diesel-electric variants are considered useful for coastal defence. The latter are optimised for stealth, and their weapons and sensors provide for effective operations close to the shore.
Because diesel-electric submarines require to come to the surface frequently to charge their batteries, their underwater endurance time is less. ‘Air-independent’ propulsion technology helps to make the diesel generator less dependent on surface air.
Older submarines can be adapted to the AIP system by retrofitting.

Source: PIB

Join Our Telegram

Oceanic Anoxic Event 1a and MASS EXTINCTION

Oceanic Anoxic Event 1a and MASS EXTINCTION

25 Dec, 24
SHARE

Oceanic Anoxic Event 1a from the Paris Basin (Environment) Paper-3 PMP OAE 1a refers to a period during the Cretaceous Period (145 million years ago and ended 66 million years ago) when Earth's oceans became depleted of oxygen, causing a significant disruption in marine life. Cause: The event is believed to have been

Viksit Panchayat Karmayogi (Good governance)

26 Dec, 24
SHARE

Viksit Panchayat Karmayogi (Good governance) Governance GS PAPER-2 PMP Dr. Jitendra Singh launched the ‘Viksit Panchayat Karmayogi’ initiative on Good Governance Day, celebrated to mark the 100th birth anniversary of former Prime Minister Atal Bihari Vajpayee. The initiative, which is part of the broader ‘Prashasan Gaon

Major programmes to control Air Pollution

23 Dec, 24
SHARE

Major programmes to control Air Pollution National Clean Air Programme? It was launched by the Ministry of Environment, Forests and Climate Change (MoEFCC) in January 2019. It is the first-ever effort in the country to frame a national framework for air quality management with a time-bound reduction target. The

Air pollution and Air quality Measures in India

21 Dec, 24
SHARE

Air pollution and Air quality Measures in India (Environment) GS Paper-3 P-M-P Air pollution may be defined as the presence of any solid, liquid or gaseous substance including noise and radioactive radiation in the atmosphere in such concentration that may be directly and/or indirectly injurious to humans or other l

Geopolitical Significance of Ports

20 Dec, 24
SHARE

Geopolitical Significance of Ports (IR) Act as geopolitical assets: Ports enhance the projection of strategic reach, which helps strengthen the country’s control over important sea and energy supply routes. E.g. Indian Navy’s staging base at Agalega Islands will enable marine patrols