The best introduction to pulse-jets I found is from Bruno Ogorelec (Croatia) [here]

The pulse-jet can be used as a "gas-generator" for gas-turbine.

I have sketches of a detonation chamber. We are optimizing it for

We expect to lower the (otherwise extreme) noise level of the pulse-jet in several ways

Hopefully it should be suitable for rural water-pumping, or power-plant for other usage.