Is it? But even if it can't out-COP conventional heat pumps, perhaps it can significantly improve on mechanical complexity. Then it would make latent heat captu

Is it? But even if it can't out-COP conventional heat pumps, perhaps it can significantly improve on mechanical complexity. Then it would make latent heat capture accessible to use cases where heat pumps will never be economically deployed. Imagine those materials used in a wheel-based counterflow heat exchanger: the complexity added to that already existing product would be very low, the utility would increase a lot.