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Isentropic efficiency compares the actual performance of a compressor to its performance under ideal, frictionless conditions. In most cases, real-world compressors have inefficiencies due to factors like heat transfer and mechanical losses, resulting in lower compressor efficiency compared to isentropic efficiency. The difference between the two values reflects the losses and imperfections present in the compressor system.
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Does an ideal machine would have an efficiency greater than one?
No, an efficiency greater than one would not be possible, since that would violate a very fundamental law of physics: conservation of energy. The efficiency of an "ideal machine" would be one, in many cases; the efficiency of an ideal Carnot engine would be less than one.
How do you calculate a size of compressor in refrigeration?
To calculate the size of a compressor in refrigeration, you need to consider factors such as the refrigeration load (heat to be removed), desired temperature range, type of refrigerant, and efficiency of the compressor. Use the formula: Q = m * Cp * ΔT, where Q is the cooling capacity, m is the mass flow rate of refrigerant, Cp is the specific heat of the refrigerant, and ΔT is the temperature difference. You can then select a compressor with a capacity equal to or greater than the calculated cooling capacity.
The mechanical advantage of a machine is always greater than 1?
well the advantage of that is pie, not math pie but pie that you eat
Is 0.01 less than 0.009?
No because 0.01 is greater than 0.009
Why efficiency curve first increases than decreases after reaching a maximum value?
The efficiency curve typically increases at first because as output increases, fixed costs are spread over more units, leading to greater efficiency. However, after reaching a certain point, diminishing returns set in as additional output causes production costs to rise due to factors like resource constraints or increased complexity, resulting in a decrease in efficiency.
How do you prove that the efficiency C arnot is greater than 1?
You don't. Such an efficiency can be less than 1, but it can't be greater than 1.
What is more applicable screw type compressor or reciprocating compressor in terms of printing?
A screw air compressor generates greater volumes of air more quickly than that of a conventional air compressor .
Does an ideal machine would have an efficiency greater than one?
No, an efficiency greater than one would not be possible, since that would violate a very fundamental law of physics: conservation of energy. The efficiency of an "ideal machine" would be one, in many cases; the efficiency of an ideal Carnot engine would be less than one.
Why efficiency of generator is greater than motor?
i think both will be same..
Why efficiency is greater then 1 in case of compound lever?
why efficency is greater than 1 in case of compound lever
Why is the axial flow compressor better than the centrifugal compressor?
Higher peak volumetric efficiency. You don't have to turn the air at all, so you do not lose and energy in transforming it as you compress the air.
Why can't the efficiency of a device or a process be greater than 100?
Efficiency cannot be greater than 100% because efficiency measures energy, and since energy is not made, only transfered (conservation of energy) then we cannot gain energy. Hence the energy out must be at most the energy in. Thus efficiency can be at most 100%
Why can't a pulley have a mechanical advantage greater than 1?
The mechanical advantage of a pulley can be greater than 1.The efficiency cannot but that is a different matter.
Can a machine's efficiency can be greater than 100 percent?
nope, efficiency o fa machine cannot be greater than 100%...theoretically it shows sometime that efficiency of a machine can be 100%, but practically it cannot be possible as there is some loss of energy is always involved in different ways.
Does bypassing AC compressor on vehicle improve fuel efficiency?
Bypassing the AC compressor will give a slight amount of fuel efficiency to the engine. However on hot days you will be driving with the windows down which is less efficient than using AC, so its a trade off.
How do you calculate a size of compressor in refrigeration?
To calculate the size of a compressor in refrigeration, you need to consider factors such as the refrigeration load (heat to be removed), desired temperature range, type of refrigerant, and efficiency of the compressor. Use the formula: Q = m * Cp * ΔT, where Q is the cooling capacity, m is the mass flow rate of refrigerant, Cp is the specific heat of the refrigerant, and ΔT is the temperature difference. You can then select a compressor with a capacity equal to or greater than the calculated cooling capacity.
How does the isothermal process take place in a air compressor work?
I should say it is closer to Isothermal process when the air in a compressor is cooled in between stages (Of course for multi stage compressor). The cooling brings the work from Adabatic process towards the isothermal process (constant temperature) which increases the efficiency. for more info, check-http://www.marineinsight.com/tech/auxiliary-machinery/efficiency-of-air-compressor-and-uses-of-compressed-air-on-a-ship/
