linch
Guest
This is the principle of operation:
the engine works in closed cycle using a gas as a thermodynamic fluid (usually air, nitrogen or helium or hydrogen in high-performance versions). When a proper temperature difference is reached between its hot point and cold point and is properly started, a cyclic pulsation is triggered, usually transformed into alternating motion of the pistons. the pulsation persists until the temperature difference continues, giving heat to the hot point and subtracting it from the cold.
Another fundamental thing to consider is the theoretical performance, which will be proportional to the feasible delta °c between the hot and cold source.
to achieve a good performance, it is necessary that the hot source develops high temperatures (e.g. a 400/500°c stove), and that this energy transfer through a coil to the thermodynamic fluid.
Here is therefore the first of a series of rather toast problems: what materials to use for the cylinder piston block, and how to achieve a good seal among the same considering a slightly pressurized circuit?
in the summer I realized a small study of a double alpha ironing (4 cylinders) applied on a gasification system of pyrolysis biomass, but many doubts remained. I would like to open a discussion in this sense, and thank those who want to participate.
the engine works in closed cycle using a gas as a thermodynamic fluid (usually air, nitrogen or helium or hydrogen in high-performance versions). When a proper temperature difference is reached between its hot point and cold point and is properly started, a cyclic pulsation is triggered, usually transformed into alternating motion of the pistons. the pulsation persists until the temperature difference continues, giving heat to the hot point and subtracting it from the cold.
Another fundamental thing to consider is the theoretical performance, which will be proportional to the feasible delta °c between the hot and cold source.
to achieve a good performance, it is necessary that the hot source develops high temperatures (e.g. a 400/500°c stove), and that this energy transfer through a coil to the thermodynamic fluid.
Here is therefore the first of a series of rather toast problems: what materials to use for the cylinder piston block, and how to achieve a good seal among the same considering a slightly pressurized circuit?
in the summer I realized a small study of a double alpha ironing (4 cylinders) applied on a gasification system of pyrolysis biomass, but many doubts remained. I would like to open a discussion in this sense, and thank those who want to participate.