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What is a Binary Vapour Cycle?
A binary vapour cycle is a representation of a mercury cycle and a steam cycle on a same scale.In this vapour cycle there is comparison between the mercury cycle and steam cycle. In mercury cycle there occurs isothermal expansion of saturated water from boiler into dry saturated steam followed by isentropic expansion followed by condensation of steam and at last heating of steam and thus mercury has completed the cycle in 4 way process. In steam cycle first ther is isothermal expansion which results in converting of saturated water into dry saturated steam followed by superheated process where the steam is superheated followed by isentropic expansion of superheated steam followed by condensation of exhaust steam and at last heating of steam thus completing the cycle.
What is the temp of 50psig steam?
Saturated = 366 Deg F
What is a dry pint?
A dry pint: a United States dry unit equal to 0.5 quart or 33.6 cubic inches pint United States dry unit . A unit of measurement of capacity for dry substances.
What makes steam flow?
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.
At what temperature saturated steam turns into superheated steam?
all temperatures above saturated steam is super heated steam. "Superheated" steam isn't so much a scientific term as a technical term. Steam is more efficient the more energy it has (the molecules have more kenetic energy/are hotter). During the height of steam locomotive development, the most fuel efficient way to accomplish this was to collect the steam, and then run it through a series of loops that are exposed to the exhaust gases of the original combustion, there-by further heating the steam. Because the steam receives no further moisture, but received further heat energy, it is considered 'dry' steam. Superheat was a term coined by the engine builders as a way to promote the design as a way to sell their engines. Because the superheater pipes carried steam pressure, they added additional equipment that had to be inspected as per ICC regulations. Because they also were exposed to the exhaust gas stream, they had a likelyhood of being erroded by the waste fuel being exhausted as well as the 1300+ degree combustion exhsut gasses.
Can saturation or dry steam be seen with the naked eye?
can saturated or dry steam be seen
Dry saturated steam is in a semigaseous state?
No. If you refer to the Temperature/ specific entropy (T - s) diagram for steam, the line segment to the right of the critical point (the point of zero gradient) of the curve is called the dry saturated line and the left segment is the satuated vapour line. As self-explanatory as it sounds, dry saturated steam is on the dry saturated line depending on the given temperature or pressure. The quality (dryness fraction) on the dry saturated line is by definition 1, that means there is no portion of it as vapour. Hence it is in a fully gaseous state.
What is dry steam?
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What is the temperature of dry saturated steam at 510psig?
It will vary slightly with changes in atmospheric pressure, but is approximately 472ºF.
What is a Binary Vapour Cycle?
A binary vapour cycle is a representation of a mercury cycle and a steam cycle on a same scale.In this vapour cycle there is comparison between the mercury cycle and steam cycle. In mercury cycle there occurs isothermal expansion of saturated water from boiler into dry saturated steam followed by isentropic expansion followed by condensation of steam and at last heating of steam and thus mercury has completed the cycle in 4 way process. In steam cycle first ther is isothermal expansion which results in converting of saturated water into dry saturated steam followed by superheated process where the steam is superheated followed by isentropic expansion of superheated steam followed by condensation of exhaust steam and at last heating of steam thus completing the cycle.
How many kinds of steam?
There are three kinds of steam 1) saturated steam, 2)super saturated steam 3) wet steam.
What is the difference between dry steam and wet steam to clean?
DRY steam is superheated There is a temperature below which steam will start to condense into water droplets. This is called the saturation temperature, and it varies with the pressure of the steam. Steam that is exactly at its saturation temperature is called saturated steam. Steam that is below its saturation temperature contains droplets of moisture and is called wet steam. Steam that is above its saturation temperature is called superheated steam.
Is steamed rice saturated?
Steamed rice is saturated with water from the steam.
Which is better wet steam or dry steam?
If by dry steam you mean superheated steam then dry steam because it has a higher calorific value
What is mean by supersaturated flow?
When dry and saturated steam is caused to expand in a nozzle,the actual measured steam flow is found to be greater than the theoretical calculated flow.This is due to the time lag in the condensation of steam & the steam remains in dry state instead of wet. Such a steam is called supersaturated steam. This time lag is cause due to the the face that, the converging part of the nozzle is to short and the steam velocity is too high that the molecules of steam have insufficient time to form droplets.
How is heat generated?
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.
Is the air in the room saturated or unsaturated?
If it is humid it is saturated. If it is dry it is unsaturated.
