- #1
physicsnoobian
- 2
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Hello!
new here. recently I've developed an interest in the way electricity is produced, I've seen some mechanisms, most of them are steam turbine based.
i have a few questions about the topic, mainly about thermodynamics.
if i want to create enough energy to move a steam turbine that requires the following steam properties:
pressure of 10 bar, temperature of 220 celsius, in the rate of 0.05kg steam per second.
to create the steam i use a 2cm diameter aluminium tube, 20 cm in length. inside there is molten salt in temperature of 280 celsius. in the first half of the tube there is constant heat that is done by gas, and in the other 10 cm, i pour 10ml of purified water every 1 second to create steam. the steam creating part of the tube is inside a container in the volume of 20X20X20 cm, and there's a nozzle at the side wall of the container for steam to come out.
let's say that the whole thing takes place on sea level in 24 celsius.
1. how much time will it take for the water to turn into steam in by the conditions i described?
2. how much heat will be lost by the molten salt throughout the steam production process?
3. will reducing the volume of the container accelerate the time it takes to the steam create the desired pressure of 10 bar?
4. can this situation cause the Leidenfrost effect to the water? what shape does the surface of the aluminium tube should be to prevent it?
5. let's say the inside of the container is dry. will having high pressured steam in the container prevent the ability to constantly pour water over the hot tube? I'm assuming the evaporation process will be faster and will include less heat loss of the molten salt if pouring water is done instead of putting the tube inside a water tank as there is time gap between the time that more cold water if poured on the tube, the export of pressured steam from the container and the general temperature inside the container as the steam is hotter than the water in a water tank - please correct me if I'm wrong.
6. is there more efficient way to create steam with these properties?
7. how one can calculations these problems?
Thank you very much for the help! fascinating subject, will be great if explained in simple language.
new here. recently I've developed an interest in the way electricity is produced, I've seen some mechanisms, most of them are steam turbine based.
i have a few questions about the topic, mainly about thermodynamics.
if i want to create enough energy to move a steam turbine that requires the following steam properties:
pressure of 10 bar, temperature of 220 celsius, in the rate of 0.05kg steam per second.
to create the steam i use a 2cm diameter aluminium tube, 20 cm in length. inside there is molten salt in temperature of 280 celsius. in the first half of the tube there is constant heat that is done by gas, and in the other 10 cm, i pour 10ml of purified water every 1 second to create steam. the steam creating part of the tube is inside a container in the volume of 20X20X20 cm, and there's a nozzle at the side wall of the container for steam to come out.
let's say that the whole thing takes place on sea level in 24 celsius.
1. how much time will it take for the water to turn into steam in by the conditions i described?
2. how much heat will be lost by the molten salt throughout the steam production process?
3. will reducing the volume of the container accelerate the time it takes to the steam create the desired pressure of 10 bar?
4. can this situation cause the Leidenfrost effect to the water? what shape does the surface of the aluminium tube should be to prevent it?
5. let's say the inside of the container is dry. will having high pressured steam in the container prevent the ability to constantly pour water over the hot tube? I'm assuming the evaporation process will be faster and will include less heat loss of the molten salt if pouring water is done instead of putting the tube inside a water tank as there is time gap between the time that more cold water if poured on the tube, the export of pressured steam from the container and the general temperature inside the container as the steam is hotter than the water in a water tank - please correct me if I'm wrong.
6. is there more efficient way to create steam with these properties?
7. how one can calculations these problems?
Thank you very much for the help! fascinating subject, will be great if explained in simple language.