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We know that steam is the gaseous phase of water, so it has water in it. It also has considerable thermal energy, too, as water must be heated quite a bit (at STP) to turn it into steam. It is the thermal energy in steam which we use to drive so many different things, like turbines to generate electric power.
Steam flows due to the differences in pressure between the source of the steam (e.g., boiler) and the location where the steam is intended to be used. The high-pressure steam moves towards areas of lower pressure, causing it to flow through pipes and conduits to power various systems or equipment.
When water is heated, there is a relation between temperature and pressure at which the water and steam are in equilibrium. This applies up to 374 degC at which the corresponding pressure is 222 bar abs or 3220 psi abs. Beyond this temperature liquid water cannot exist and the steam is said to be supercritical.
At any temperature between 100 degC and 374 degC there will therefore be a pressure at which steam is just formed and this is said to be dry saturated steam. It is saturated because if the temperature drops even slightly at the same pressure, steam will condense. If at this same pressure the steam is further heated, it is said to be superheated because it is at a temperature higher than dry saturated steam would be. Superheated steam is desirable for use in steam turbines, because it prevents formation of water droplets as the steam is expanded through the turbine-the droplets could damage the turbine blades.
In the supercritical region above 374 degC steam will always exist whatever the pressure, so the concept of superheat does not apply here.
Steam is made by evaporating water.........Once the liquid reaches a boiling point it turns to vapor
H2O, water.
It's called steam when the vapor pressure of the water equals or exceeds atmospheric pressure.
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Why hammering is happening in steam line?
Hammering in a steam line can occur due to sudden changes in pressure or temperature within the system. This can lead to the formation of water droplets that are carried along with the steam flow, causing the banging noise commonly associated with steam hammering. Proper system design and maintenance can help prevent these issues.
What is the viscosity of liquid Sugar Syrup?
Heat makes atoms "dance around" a lot. They dance farther away from each other. This helps the syrup flow easily. Coldness makes the atoms stay closer together. That makes the syrup harder to flow.
How do you calculate conversion of steam to condensate?
To calculate the conversion of steam to condensate, you can use the formula: Steam Converted to Condensate = Steam Inlet - Steam Outlet This formula subtracts the amount of steam leaving the system (Steam Outlet) from the amount of steam entering the system (Steam Inlet) to determine the amount of steam that has been converted to condensate.
Valves are used to control flow of?
fluids or gases in a system. They can be opened or closed to regulate the flow rate, direction, or pressure of the substance passing through them. Valves are commonly found in pipelines, plumbing systems, and various industrial processes.
How is a moving magnet used to create electricity?
makes current flow through a magnet
What is the steam economy?
se=steam evaporated/steam flow at start
How do you calculate the steam flow rate?
The steam flow rate can be calculated by dividing the mass flow rate of the steam by the specific volume of the steam at the given conditions. This can be determined using steam tables or steam property calculators. The formula to calculate steam flow rate is: Flow rate (lb/h) = Mass flow rate (lb/h) / Specific volume (ft^3/lb)
What is the conditions of steam velocity while flow through steam nozzle?
Nozzles are designed to increase the steam velocity.
Steam engine piston valve?
Yes, steam engines do have pistons and valves. The piston valve is shaped like a piston hence its name. It used to control the flow of live (boiler) steam into the cylinder and the flow of exhaust steam out of the cylinder.
Why is the steam of aquatic plants weak?
Vascular tissue is the tissue which makes steam strong . As their are no such tissue in steam of aquatic plant it makes them weak.
What is unit of steam flow in turbine?
kg/s
What is steam economy in Evaporator?
Steam economy is the ratio between total steam evaporated and steam consumed Se=Steam evaporated/steam flow at start should be above 1 for multi effect systems
What sound does steam makes?
Hiss
What does a solenoid valve do in steam cleaner?
The steam cleaner utilizes a solenoid valve to control the flow of the fuel to the combustion chamber. This solenoid is activated by a flow-switch when water is flowing through it.Ê
What is difference between radial flow turbine and axial flow turbine?
in a radial flow turbine the steam enters the turbine in the direction of its radius and leaves it in the direction of the axis of the shaft. in a axial flow turbine the steam enters the turbine in the direction of the axis of the shaft and leaves the turbine in the same direction.
How do you lower turbine differential expansion?
by controlling main steam flow
Is air and steam a fluid?
Yes, both air and steam are considered fluids. Fluids are substances that can flow and take the shape of their container, and both air and steam exhibit these properties.
