- Apr 23, 2018
RTG is good for unmanned missions. But we need to start working on Fusion Drives for the long term. They will come up by 2050. The work needs to start now.View attachment 77857
Isro plans new propulsion for deep space missions
Indian Space Research Organisation (Isro) is exploring the possibility of developing a new propulsion technology to fuel spacecraft for its future deep space missions.
ISRO is in the process of developing 100W Radioisotope Thermoelectric Generator (RTEG) without radio isotope.’ Isro calls it alpha source thermoelectric propulsion technology.
RTEG will have less mass than solar cells of equivalent power and allow more compact spacecraft that can navigate easier in space. Many missions of Nasa and Russia, Besides China’s 2013 Chang’e 3 mission to the moon and its rover Yutu had used RTG.
It will be useful for long duration missions where alternative energy is not available. the development of RTEG is taken up as it is envisaged that it will be a part of Isro’s deep space missions for power generation and thermal management. the system will be capable of operating in vaccum conditions of deep space, dusty, carbon dioxide-rich and corrosive environments. Isro says the RTG’s weight should be 20 kgs or less, with a life span of 20 years or more and survive indefinitely without damage when stored in the atmosphere at temperatures as high as 50 degrees Celsius.
The system should be safe for human handling in close vicinity under all conditions even with nuclear fuel concealed inside … the unit should be resilient to any pre-launch or post-launch explosion so as to not cause any nuclear contamination in the environment. that means ISRO also working in Nuclear propulsion .
After another Mars mission, Isro could be eyeing Jupiter, Saturn, Neptune and Uranus.
View attachment 77858
'Orbiter Craft Module Structure' of Chandrayaan-2( OLD pic)
View attachment 77859
CLASS instrument showing the four quadrants with four SCDs (Swept Charge Devices) each. The electronics is housed in the box behind the detector units. An aluminum door protects the detectors from radiation damage en-route to the Moon. Passive radiators connected to heat pipes provide the required low-temperature environment for the detectors.