ISRO General News and Updates

[Mikesingh]

Message for the shameless Indians libtards who were criticizing the mission and tweeting sarcastic comments with outrageous cartons deriding ISRO's efforts.......

The National Aeronautics and Space Administration (NASA) lauded Chandrayaan-2, saying the Moon mission had "inspired" USA's premier space agency, which is keen to jointly explore the solar system with ISRO. "Space is hard. We commend ISRO's attempt to land their Chandrayaan - mission on the Moon's South Pole," NASA said in a tweet. "You have inspired us with your journey and look forward to future opportunities to explore our solar system together," it said.

 

[vampyrbladez]

Last night was worst.

Chandrayan 2 cancelled

People like us spent good money for this launch. Hotel bookings, Air travel, cabs, etc. Only for disappointment at last moment. Very bad behavior by CISF. Told everyone to go back rudely. There where school kids who came to launch site in middle of the night they were too disappointed. Everyone I saw at launch site was visibly angry. Almost everyone was cursing at ISRO.

Now who is gonna reimburse our expenses?


Typical sarkari babu behavior by ISRO.

@Cutting Edge 2 remember this tweet? Please avoid this r/india behavior here.

 

[tsunami]

Vicky has done hard landing so in all probability destroyed.

According to ISRO it's fine not destroyed.

 

[Akula]

SSLV tender is out
https://www.isro.gov.in/sites/default/files/tenders/pt-_ro_03_-_01-_12041.pdf

 

[Shashwat]

At this point it has become a joke. It crashed no shame in thta even Russian lander crashed
{Phobos Grunt mission}. So what? move on, create a better landed and under 2000kg it can be done at a scale better than Chinese Chang'e plus this time we won't be needing an orbiter since we already have one.
With GSLV mk2 it'll be cheaper to send a new and better lander than giving out false narrative left and right.

People seems to forget that space equipment is delicate and is only ruggedised to a certain extent and is not military grade. A crash of any magnitude will make it render useless not sure why we living in a pipedream with Vikram.

 

[Kra]

At this point it has become a joke. It crashed no shame in thta even Russian lander crashed
{Phobos Grunt mission}. So what? move on, create a better landed and under 2000kg it can be done at a scale better than Chinese Chang'e plus this time we won't be needing an orbiter since we already have one.
With GSLV mk2 it'll be cheaper to send a new and better lander than giving out false narrative left and right.

People seems to forget that space equipment is delicate and is only ruggedised to a certain extent and is not military grade. A crash of any magnitude will make it render useless not sure why we living in a pipedream with Vikram.

Very nice. You opened our eyes. Now to write a letter to ISRO.

 

[Indx TechStyle]

ISRO moves on, gears up to test semi-cryogenic engine in Ukraine

ISRO has put its disappointment over the not-so-successful moonlanding behind it and has begun to look forward — to the next missions. On the cards is a clutch of launches, starting from PSLV 47 later this month. But the next big milestone is the testing of the semi-cryogenic engine — in Ukraine.

The semi-cryogenic engine is fully ready now, S Somnath, Director, Vikram Sarabhai Space Centre, Thiruvananthapuram, a unit of ISRO, told BusinessLine. When ready for operation, the semi-cryo will raise ISRO’s carrying capacity from 4 tonnes to 6 tonnes, all the way up to the Geosynchronous orbit, 36,000 km above earth.

India and Ukraine signed, on June 2, 2005, a Framework Agreement for cooperation in the peaceful uses of outer space.

It is believed that this also involved transfer of blueprints for a rocket engine. Even the liquid propellant-fired Vikas engine, used in GSLV’s lower (core) stage was first tested in France, recalls a former ISRO executive.

Technological leap

The ₹1,800-crore SCE-200, where 200 refers to the number of tonnes of thrust it kicks, is a big technological leap. It is a very complex machine and its development is no less a technological challenge than Chandrayaan-2, say sources in ISRO.

The cryogenic engine that sits at the top of the GSLV rocket is a small one, of 20 tonnes of thrust, which is only slightly more than what a Pratt & Whitney 1000G engine, fitted onto a A320 aircraft, delivers.

After all, the cryogenic engine does not need to carry a very heavy load on its head — the heavy lifting is done by the lower stages of the rocket, which detach and fall into the sea after they expend themselves.

On the other hand, the semi-cryogenic engine, which is based on Ukrainian company KB Yuzhnoe’s RD-810 engine design, will be located at the lower part of the rocket and is meant to do the heavy lifting. It generates a whopping 200 tonnes of thrust; the pressure inside its combustion chambers is about 190 times the atmospheric pressure that we feel on our bodies all the time.

The SCE-200 is good in another way too — its fuel is kerosene, kept in the tank at room temperature. (The oxidiser is liquid oxygen, kept in cryogenic conditions so that it remains liquid.)

Kerosene is a far ‘greener’ fuel than the unsymmetrical dimethyl hydrazine (UDMH) that is currently used in Indian rockets, which is also highly toxic and carcinogenic.

A new AVATAR

ISRO’s rocketry has many ambitious milestones to cross. First, there is the re-usable launch vehicle but the real meat is to come later, hopefully by 2025, when the AVATAR vehicle will become operational.

Jointly developed by ISRO and Defence Research and Development Organization (DRDO), AVATAR will be a space plane that can take off and land from airfields, like commercial aircraft. It will be a technological marvel, which will collect air on its way up, separate oxygen from it and store the gas on-board for space use.

Apart from bringing down the cost of launching satellites incredibly, to under $100 a kg, the AVATAR is also expected to make ‘space solar stations’ possible. These are solar power plants in space that will produce electricity and beam it down as microwaves.

Today, taking up tonnes of material to build such a station makes it uneconomical, but AVATAR could favourably invert the economics of it. Incidentally, China has made substantial progress in building the first ever SSS.

In the meantime, ISRO is also trying to master the technology for ‘docking’ with a space station, so that Indian astronauts and supplies can be ferried up and down. ISRO indeed has little time to grieve over Chandrayaan-2.

 

[Indx TechStyle]

ISRO moves on, gears up to test semi-cryogenic engine in Ukraine

Technological leap

A new AVATAR

6 tonnes to GTO and 15 tonnes to LEO cap. GSLV Mark III next year in December.:biggrin2:

HLV/ULV in class of Delta-IV heavy, Ariane 5 or Cheng Zheng - 5 in next 5-7 years.

 

[Akula]

6 tonnes to GTO and 15 tonnes to LEO cap. GSLV Mark III next year in December.:biggrin2:

HLV/ULV in class of Delta-IV heavy, Ariane 5 or Cheng Zheng - 5 in next 5-7 years.

Than GSLV mk3 will be able to lift space station modules by 2030.

 

[Indx TechStyle]

Than GSLV mk3 will be able to lift space station modules by 2030.

Or it will be replaced by ULV. LVM3 can only make a mini-skylab. An HLLV is needed for a full scale space station.

 

[Aaj ka hero]

6 tonnes to GTO and 15 tonnes to LEO cap. GSLV Mark III next year in December.:biggrin2:

HLV/ULV in class of Delta-IV heavy, Ariane 5 or Cheng Zheng - 5 in next 5-7 years.

Yes, if sce-200 go successful though waiting for clustered sce-500, that will be more complex than even this engine.

 

[Indx TechStyle]

Yes, if sce-200 go successful though waiting for clustered sce-500, that will be more complex than even this engine.

I don't think there is anything called SCE-500. SCE-200 is supposed to be clustered for India's HLLVs.

Much bigger engines will developed when an Indian SHLV in class Saturn-V is developed. Particularly for a manned moon mission, 30 years away.

Current goal is achieving operational heavy lift capability. ISRO will catch up with ESA first (along with adding human spaceflight) in next 10 years.

 

[Aaj ka hero]

I don't think there is anything called SCE-500. SCE-200 is supposed to be clustered for India's HLLVs.

Much bigger engines will developed when an Indian SHLV in class Saturn-V is developed. Particularly for a manned moon mission.

Yes, sce-200 clustered to make sce-500 that's what I posted.
The biggest is SHLV don't know when it will come but I think if this engine goes to be a success then we must start developing SHLV right away.
WE have to be there on moon and mars and also because of this SPACE FORCE our SHLV will become even more important.
Man, how beautiful it will look.

 

[Indx TechStyle]

We are going to build this engine RD-810 as SCE-200. Just give money & get blueprints.
http://www.russianspaceweb.com/rd810.html
Thrust 195 tonnes with burntime 304 seconds!!!!

 

[Indx TechStyle]

We are going to build this engine RD-810 as SCE-200. Just give money & get blueprints.
http://www.russianspaceweb.com/rd810.html
Thrust 195 tonnes with burntime 304 seconds!!!!

From above url:

Indian version

In 2005, Ukraine agreed to provide India with designs for the RD-810 engine and, on Nov. 20, 2006, the Indian Space Research Organization, ISRO, awarded a contract to KB Yuzhnoe for a project code-named Jasmine, which officially started the development of the RD-810. In India, the RD-810-based engine was dubbed SCE-200, which stood for "semi-cryogenic," indicating the use of kerosene fuel, which can be stored at regular temperatures, and liquid oxygen, which requires cryogenic conditions to stay in liquid form. The "200" in the designation denoted its thrust of 200 tons.

ISRO planned to install the SCE-200 engine on the modified core stage of the GSLV Mark 3 rocket replacing the older propulsion system. It would boost the payload capacity of the rocket to the geostationary transfer orbit from four to six tons.

Later, four similar engines could propel a new-generation rocket, which could deliver up to 10 tons to the same orbit without the help of strap-on boosters.

In addition to assisting with the design of the engine, KB Yuzhnoe also advised ISRO on the development of the prospective launch vehicle itself.

12-15 tonnes to GTO and 25-30 tonnes to LEO if added with strap on boosters!
India's HLV will be similar to:
Delta IV Heavy - Wikipedia, the free encyclopedia
Cheng Zheng 5 - Wikipedia, free encyclopedia

 

[Akula]

We are going to build this engine RD-810 as SCE-200. Just give money & get blueprints.
http://www.russianspaceweb.com/rd810.html
Thrust 195 tonnes with burntime 304 seconds!!!!

When will our own facility for testing these engines be in operation.

 

[Indx TechStyle]

When will our own facility for testing these engines be in operation.

Some 10 years after production commences.

 

[Indx TechStyle]

When will our own facility for testing these engines be in operation.

Some 10 years after production commences.

Okay, we are going have our own such facility in less than one year. HLV is closer than we think.

 

[Indx TechStyle]

ISRO is developing a methane-powered rocket engine

In its endeavour to develop cutting-edge technologies that are on par with elsewhere in the world, Indian space agency, ISRO, is developing methane-powered rocket engines. Methane, which can be synthesised with water and carbon dioxide in space, is often described as the space fuel of the future.

A senior official of ISRO told BusinessLine that the space agency is developing two ‘LOx methane’ engines (liquid oxygen oxidiser and methane fuel) engines.

One of the two projects is trying to convert the existing cryogenic engine, which uses liquid hydrogen for fuel, into a LOx methane engine. The other is a smaller engine of 3 tonnes thrust, which will feature an electric motor.

These are being developed at ISRO’s Liquid Propulsion Systems Centre at Trivandrum. The space agency’s officials are not willing to give further details, these being R&D projects and therefore could not come to fruition. Asked if ISRO’s efforts towards methane means its intention to shift away from the existing hydrazine-based fuels, the official said that he was “not making any such predictions.”

ISRO currently prefers to use a fuel called Unsymmetrical Di-Methyl Hydrazine, along with Nitrogen tetroxide for oxidiser, in its liquid fuel (Vikas) engines, which are used in the lower stages of its rockets, PSLV and GSLV. This fuel, like all hydrazine-based fuels, is said to be highly toxic and cancer-causing. Globally, governments are keen on banning hydrazine. Besides, methane beats hydrazine on every other count, too. Apart from being non-toxic, it has a higher specific impulse (which means one kg of the gas can life one kg of mass for a longer time), it is easy to store, does not leave a residue upon burning, less bulky, and, importantly, can be synthesised up in space.

Reactive to oxygen

For example, Mars has both water on its land and water in its atmosphere — fuel for a return journey from Mars can be produced right there with these. But on the flipside, methane-fired engines need an igniter to start the fire. Hydrazine fuels are hypergolic, which means they start burning on their own upon coming in contact with oxygen.

The move towards LOx methane is global, but only the Chinese are said to have developed a working engine — the 80-tonne (thrust) TQ-12 engine. Elon Musk’s company, SpaceX, is looking to make its Raptor rocket methane-fuelled. Mumbai-based start-up Manastu Space is developing a propulsion system that will use Hydrogen peroxide as fuel. The engine will be operation-ready in a couple of years, the company’s Chief Technical Officer, Ashtesh Kumar, told Business Line on Saturday.

Currently, Manastu’s engines are meant for steering satellites in orbit, but Kumar said that they can be scaled up to power launch vehicles. According to the company, the space industry started with Hydrogen peroxide, but moved to a ‘better’ hydrazine. But Manastu has developed a chemical additive, which it is trying to patent — the additive will enable Hydrogen peroxide to elbow hydrazine out of the competition.

Meanwhile, a few other rocket fuels have emerged on the horizon — Ammonium di Nitramide in Europe and Hydroxyl Ammonium Nitrate in the US. The better fuels will make putting satellites in space or space research less expensive. The fun has just begun.

 

[Akula]

ISRO is developing a methane-powered rocket engine

Reactive to oxygen

Agnikul Cosmos and another startup is also working on a Metholox engine.