>-) wrote:The chamber does not get destroyed because it's buried under kilometers of bedrock.
This part is amusing.
Underground tests are a thing. Your design would suffer serious issues, including, but not limited to the following:
1. The chamber will be destroyed. Just because there is a lot of rock doesn't mean your chamber can't be destroyed. We're talking about ludicrous forces here.
2. The plug will get blown to bits. That part does not have endless bedrock behind it, and in any case, the face of it is going to rapidly ablate.
3. You need one helluva rope.
4. The water is going to be superheated steam pretty rapidly.
5. The whole engine will become extremely hot, in radioactive terms. Underground blasts keep the radioactive products around in large part. Sure, you'll have some fallout from the shattered bits of your plug getting tossed about, but a lot will accrue in the local area. Doing this on the regular will result in increased radiation.
6. It will be stupid expensive to run. $1mil buys a lot of power. If you're going to just not care about public safety and outcry, there are cheaper ways to produce it.