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NNadir

(33,525 posts)
Fri Sep 3, 2021, 02:06 AM Sep 2021

First of a kind 3D printed parts installed in TVA nuclear reactor.

We had the pleasure of driving my son down to his summer internship at Oak Ridge National Laboratory two years back, and after he went on the ORNL official tour which met at the local ORNL museum. While we were waiting around in the museum they had on display a 3D printed Jeep that had been produced at the lab, a full size World War II type Jeep. I don't know, and don't believe that it was a working Jeep, but the scale of the thing was rather impressive.

According to my son's report, working at Oak Ridge was a fascinating experience for him; although he was an undergraduate interne, they set him free making targets for the neutron spallation facility to characterize. He had a wonderful time and learned a lot professionally and personally.

He is finishing up a one year complementary Masters in Materials Science and plans to apply for schools for a Ph.D. in Nuclear Engineering, with the University of Tennessee, where his advisor at Oak Ridge has joined the faculty on the list along with Michigan, MIT and Berkeley. I am very pleased he has decided to serve humanity by entering this field and honored that he has announced his intention to steal all my ideas and put them into workable form where possible.

I get to die happy, making me an extraordinarily lucky man.

Anyway, the 3D printer at Oak Ridge has now moved into practical use, making parts for operating nuclear power reactors.

The article is here:

3D-printed components in service at TVA reactor

Some excerpts:

Four first-of-a-kind 3D-printed fuel assembly channel fasteners have been installed and are now under routine operating conditions at unit 2 of the Tennessee Valley Authority's (TVA's) Browns Ferry nuclear power plant in Alabama. The components were produced at the US Department of Energy's (DOE's) Manufacturing Demonstration Facility at the Oak Ridge National Laboratory (ORNL).




Channel fasteners secure the fuel channel to the fuel assembly. These have traditionally been fabricated from castings and require precision machining.

The components installed at Browns Ferry 2 were printed at ORNL using additive manufacturing techniques - also known as 3D printing - in which material is deposited in layers, following a computer-designed model, to form precise shapes without the need for later carving or machining.

"The channel fasteners' straightforward, though non-symmetric, geometry was a good match for a first-ever additive manufacturing application for use in a nuclear reactor," ORNL said.

The parts were installed on Atrium 10XM boiling water reactor fuel assemblies at Framatome's nuclear fuel manufacturing facility in Richland, Washington. These were installed within Browns Ferry 2 during a planned outage which ended on 22 April. The fasteners will remain in the reactor for six years with regular inspections during that period.

The 3D-printed components were developed in collaboration with TVA, Framatome and the DOE Office of Nuclear Energy–funded Transformational Challenge Reactor (TCR) programme based at ORNL...


Very cool.

I dream of 3D printed solid "breed and burn" fuel elements.

ORNL has to be one of the most fascinating places in the United States. There are a lot of things I really admire about the MIT program, which is very innovative, and he clearly has a shot of getting in there, but there's nothing wrong with UT in this field, and he has great affection for ORNL. Any of the schools he's mentioned are great nuclear engineering schools.

I don't mean to gloat but I'll say it again, it looks like I get to die happy.
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First of a kind 3D printed parts installed in TVA nuclear reactor. (Original Post) NNadir Sep 2021 OP
"Breed and burn (on the grill?) perhaps Backseat Driver Sep 2021 #1
Will be nice if they can find a way to make it cheap as well as safe biologically as well as cstanleytech Sep 2021 #2
The starting material was "bovine fibers," thus obtained from a real cow. NNadir Sep 2021 #3
I've tried to switch to local beef farmers who grass-feed Backseat Driver Sep 2021 #4

Backseat Driver

(4,393 posts)
1. "Breed and burn (on the grill?) perhaps
Sat Sep 4, 2021, 01:24 AM
Sep 2021

For the future gourmet Labor Day grill-out party! "Nuke" some tasty, tender protein fuel elements for humans?

https://www.livekindly.co/3d-printed-wagyu-beef/

3D-Printed Wagyu Beef Advances Food Tech to a New Level
Researchers just 3D-printed wagyu beef for the first time ever.
BY LIAM PRITCHETT | AUGUST 30TH, 2021

Japanese scientists just created the world’s first 3D-printed wagyu beef.

Osaka University researchers used real bovine cell fibers from muscle, fat, and “vessel” cells to bioprint an identical replica of traditionally-farmed beef steak.

Wagyu (loosely translated as “Japanese beef”) comes from one of four specific cattle breeds. It also features a distinctive fat marbling (known as “Sashi”), taste, and texture. Based on these criteria, the new 3D-printed beef is definitively wagyu.

In a paper published by Nature Communications earlier this month, lead scientist Dong-Hee Kang explains the team’s methods and results in detail. [snip] Scroll down for more on this story!

cstanleytech

(26,293 posts)
2. Will be nice if they can find a way to make it cheap as well as safe biologically as well as
Sat Sep 4, 2021, 02:00 AM
Sep 2021

safe for the environment.

NNadir

(33,525 posts)
3. The starting material was "bovine fibers," thus obtained from a real cow.
Sat Sep 4, 2021, 07:59 AM
Sep 2021

I grew up eating lots of beef; I can't remember after all these years how it tastes, but I find the meat aisles in the supermarkets when I find myself walking past them to be aesthetically disconcerting.

I have wondered all these years if how I'd regard cultured meat, grown in media in bioreactors.

3D Printed meat with a meat starting material would certainly be more expensive than just executing a cow, cutting it up, and then eating it.

All this said, the 3D Printing of biomaterials, particularly bone but perhaps other tissues with the starting material grown in cultured certainly suggests some medical technology worth developing.

Backseat Driver

(4,393 posts)
4. I've tried to switch to local beef farmers who grass-feed
Sat Sep 4, 2021, 01:36 PM
Sep 2021

their herd through a farm market service; thus healthier and tasty yet not much more a sustainable protein source and the meats are still reasonably priced for a special occasion home dinner. Fresh Thyme Markets have a "real" Waygu small filet and NY strip steak sale this weekend while supply lasted @ $39.99 lb. - I won't be busting the food budget, LOL!

More than a few years back we stayed at the Blennerhassett Hotel in Parkersburg, WV on our way to visiting Asheville, NC. and the Harrah's casino at Cherokee (a weekend of safe fun, politics be damned) so I receive notices about their accommodations and specials. They've now got a new chef and Waygu tomahawk steaks were featured on their in-house restaurant; that menu choice entre pushed $150 a head/couple. Earlier, they featured a "legendary" Copper River Salmon filet. They must have a following of gourmet foodies; I'm not one of those, but the gorgeous hotel rooms there feature vintage Victorian repo decor, are pet-friendly, and recently, a new JFK themed room became ready for travelers to reserve as JFK apparently had stayed at the hotel several times in the past.

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