Calculation of the exhaust velocity of a Hot Water Rocket

[Basimalasi]

inb4 "google it", I did. There aren't a lot of information about this topic.

Can a Hot Water Rocket or a Steam rocket ever succeed to reach outer space?
I can calculate the exhaust velocity by determining the change in enthalpy I guess but I don't in which state will it exist in and how can I get the values from the thermodynamics table, so imagine we have a 5MW heater then we heated a tank full of water, how much is the mass and energy needed to fly is and which state will the water have?

 

[Nidum]

Basic answer is that a rocket engine based on heating a tank of water is unlikely to be successful .

You might find a lot of explanation and background interest in these topics though :

(1) Liquid Hydrogen/Liquid oxygen rocket engines .

(2) Hydrogen Peroxide catalytic rocket engines .

(3) Flow in a convergent -divergent nozzle - usually called a DeLaval nozzle .

 

[NatSusan]

It is highly unlikely that a Hot Water or Steam rocket could successfully reach outer space. While it is possible to calculate the exhaust velocity and determine the necessary mass and energy, there are many other factors that would prevent a water-based rocket from reaching such heights. For example, the weight and size of the rocket would be a limiting factor, as well as the ability to withstand the extreme temperatures and pressures of space. Additionally, the water would likely turn into steam too quickly, causing the rocket to lose thrust and fail. It is much more feasible to use traditional rocket fuels such as liquid hydrogen or kerosene for space travel.