Pebblebed NTRs: Solid Fuel, but Different

Hello, and welcome back to Beyond NERVA! Today, we’re going to take a break from the closed cycle gas core nuclear thermal rocket (which I’ve been working on constantly since mid-January) to look at one of the most popular designs in modern NTR history: the pebblebed reactor! This I should have covered between solid and […]

The Nuclear Lightbulb – A Brief Introduction

Hello, and welcome back to Beyond NERVA! Really quickly, I apologize that I haven’t published more recently. Between moving to a different state, job hunting, and the challenges we’re all facing with the current medical situation worldwide, this post is coming out later than I was hoping. I have been continuing to work in the […]

Liquid Fueled NTRs: An Introduction

Hello, and welcome back to Beyond NERVA! Today we continue our look into advanced NTR fuel types, by diving into an extended look at one of the least covered design types in this field: the liquid fueled NTR (LNTR). This is a complex field, with many challenges unique to the phase state of the fuel, […]

Fluid Fueled NTRs: A Brief Introduction

 Hello, and welcome back to Beyond NERVA! This is actually about the 6th blog post I’ve started, and then split up when they ran more than 20 pages long, in the last month, and more explanatory material was needed before I discussed the concepts I was trying to discuss (this blog post has also been […]

Carbides: Nuclear Thermal Fuels of the Past and Future

Hello, and welcome to Beyond NERVA! Today, we’re looking at a different kind of fuel element than the ones we’ve been examining so far on this blog, one that promises higher operation temperatures and therefore more efficient NTRs: carbide fuel elements. We’ll also look at a few different options for NTR designs using carbide fuels: […]

NTR Hot Fire Testing 2: Modern Designs, New Plans for the LEU NTP

Hello, and welcome back to Beyond NERVA in the second part of our two-part series on ground testing NTRs. In part one, we examined the testing done at the National Defense Research Site in Nevada as part of Project Rover, and also a little bit of the zero power testing that was done at the […]

NTR Hot Fire Testing Part I: Rover and NERVA Testing

Hello, and welcome back to Beyond NERVA, where today we are looking at ground testing of nuclear rockets. This is the first of two posts on ground testing NTRs, focusing on the testing methods used during Project ROVER, including a look at the zero power testing and assembly tests carried out at Los Alamos Scientific […]