Advanced Stirling Radioisotope Generator (ASRG). Thermal Power Model in MATLAB®. NASA/TM— August jsp. The Advanced Stirling Radioisotope Generator. Evan Long February 11, Submitted as coursework for PH, Stanford University, Winter Jan 23, Lockheed, the prime contract on the now-defunct Advanced Stirling Radioisotope Generator program, is closing out the project and transferring.

Author: Nesar Kihn
Country: Turkmenistan
Language: English (Spanish)
Genre: Art
Published (Last): 13 March 2006
Pages: 299
PDF File Size: 6.14 Mb
ePub File Size: 8.14 Mb
ISBN: 933-7-80851-458-3
Downloads: 12080
Price: Free* [*Free Regsitration Required]
Uploader: Moogukree

Why the outer planets? This movement is so rapid — about Hz — that it properly induces an alternating current to feed the spacecraft electronics.

So, it would appear that we agree with the cleaning solar panel prospect. So maybe this isn’t the biggest thing to fight for?

NASA Just Cancelled its Advanced Spacecraft Power Program

But it’s not really “no plutonium until ” is it? Creating Pu is fundamentally more important than having an ASRG, even if that means fewer missions. Please sign in to add a comment. In short, when budgets are small organizations tend to become more conservative in their decision-making: Test results verified that the RCHS could tolerate the gravitational transients throughout the suborbital flight, while transferring the thermal power necessary to keep a Stirling convertor within its prescribed temperature limits.

It uses a stirling engine to generate electricity at four times the efficiency of a regular RTG.

Advanced Stirling radioisotope generator

Completing 16, hours of testing takes two years if the device is in continuous operation. The New Horizons mission to Pluto used about 11kg, which would take anywhere from 7 – 11 years to generate under the current plan. So if there’s not gonna be many Outer missions anyway seems givenand to less Pu-sapping destinations than Pluto, and if some possibly tiny? All these actions point inescapably to a strong narrowing of the focus of the space exploration program and a big loss for science in general.


I would strongly suggest that we focus on the development of fusion power and propulsion for interplanetary and interstellar exploration. Leave a Comment You must be logged in to submit a comment. This solar genertor technology could be used to power high-power spacecraft and unmanned aerial vehicles.

While the average person associates boiling with cooking dinner, the process is also widely used to advvanced heat across surfaces. One potential technology gap is the waste heat rejection approach for higher power Stirling convertors. Sad to hear this.

Japan holds nearly 10 tons in various storage facilities and nuclear reactors across the country. Then new addition from Trammell, Jason Reimuller, Charles J. I don’t want my son to grow up parched by the lack of adventures to the cosmos! It follows that an amount sufficient gneerator a meaningful mission to the outer planets should have radioisotpe quarantined and it wasn’t. Mmm – thoughtful comments. These energy sources all involve circulating heat, commonly via a fluid.

Radial core heat spreader to improve Stirling radioisotope generator heat rejection

If the technology were adopted in the next generation SRG, additional integrated system testing would be advancsd. When many components are radoiisotope into a single semiconductor chip, heating can become a real problem. If there really was 10 tons of the stuff lying around I don’t think we would be having this conversation.

I have been reading for years about the dwindling plutonium. What effective mechanism s do you have in mind for cleaning solar panels? The Stirling cycle has been known, and engines have been designed to use it, since the early ‘s. Kill each and every enabling technology development program and you are left with what. Registration is free, and takes less than a minute.


This is very effective in lean times. The spacecraft team that brought us close-ups of Fenerator will ring in the new year by exploring an even more distant and mysterious world.

The entire Pu issue should be very much on their radar, no?

The Stirling cycle depicted on a pressure-volume graph. With the moving parts, there’s the case that Stirling technology was always higher risk than RTG to fly on these huge-investment, enormous-life, Outer missions. The sounding rocket flight test proved that the RCHS could maintain proper thermal control during hypergravity and microgravity radioisofope of the orientation of the device relative to the launch forces.

This design sacrifices energy efficiency for mechanical simplicity; since maintenance is impossible on a mission of duration and distance sufficient to justify such a power source, it is best to eliminate moving parts wherever possible. Spirit did it for years too. The suborbital flight took place on July 7, and included two RCHS units, one parallel and tsirling perpendicular relative to the launch vector.

An overheating electronic component wastes advnaced and is at risk of behaving If NASA disastrously of course has to triage Planetary madly, how do the campaigning priorities here fall exactly?

Archived from the original on The Planetary Fund Support enables our dedicated journalists to research deeply and bring you original space exploration articles.