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Indicated Thermal Efficiency is given by the ratio of indicated power generated by the engine to the power generated by the combustion of the fuel. Check FAQs
IDE=ηrηa100
IDE - Indicated Thermal Efficiency?ηr - Relative Efficiency?ηa - Air Standard Efficiency?

Indicated Thermal Efficiency given Relative Efficiency Example

With values
With units
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Here is how the Indicated Thermal Efficiency given Relative Efficiency equation looks like with Values.

Here is how the Indicated Thermal Efficiency given Relative Efficiency equation looks like with Units.

Here is how the Indicated Thermal Efficiency given Relative Efficiency equation looks like.

0.415Edit=8.3Edit5Edit100
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Indicated Thermal Efficiency given Relative Efficiency Solution

Follow our step by step solution on how to calculate Indicated Thermal Efficiency given Relative Efficiency?

FIRST Step Consider the formula
IDE=ηrηa100
Next Step Substitute values of Variables
IDE=8.35100
Next Step Prepare to Evaluate
IDE=8.35100
LAST Step Evaluate
IDE=0.415

Indicated Thermal Efficiency given Relative Efficiency Formula Elements

Variables
Indicated Thermal Efficiency
Indicated Thermal Efficiency is given by the ratio of indicated power generated by the engine to the power generated by the combustion of the fuel.
Symbol: IDE
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 100.
Relative Efficiency
The Relative Efficiency of an I.C. engine is the ratio of indicated thermal efficiency to the thermal efficiency of a theoretically reversible cycle.
Symbol: ηr
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 100.
Air Standard Efficiency
Air Standard Efficiency (in %) is the efficiency of the engine using air as the working medium. This efficiency is often called ideal efficiency.
Symbol: ηa
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.

Other Formulas to find Indicated Thermal Efficiency

​Go Indicated Thermal Efficiency given Indicated Power
IDE=(IPmfCV)100

Other formulas in Power and Efficiency category

​Go Brake Power given Mean Effective Pressure
BP=(PmbLA(N))
​Go Mechanical Efficiency of IC engine
ηm=(BPIP)100
​Go Brake Power given Mechanical Efficiency
BP=(ηm100)IP
​Go Indicated Power given Mechanical Efficiency
IP=BPηm100

How to Evaluate Indicated Thermal Efficiency given Relative Efficiency?

Indicated Thermal Efficiency given Relative Efficiency evaluator uses Indicated Thermal Efficiency = (Relative Efficiency*Air Standard Efficiency)/100 to evaluate the Indicated Thermal Efficiency, Indicated Thermal Efficiency given Relative Efficiency is the kind of engine thermal efficiency that is given by the ratio of indicated power generated by the engine to the power generated by the combustion of the fuel. It states the amount of power taken by the piston out of the total fuel power. Indicated Thermal Efficiency is denoted by IDE symbol.

How to evaluate Indicated Thermal Efficiency given Relative Efficiency using this online evaluator? To use this online evaluator for Indicated Thermal Efficiency given Relative Efficiency, enter Relative Efficiency r) & Air Standard Efficiency a) and hit the calculate button.

FAQs on Indicated Thermal Efficiency given Relative Efficiency

What is the formula to find Indicated Thermal Efficiency given Relative Efficiency?
The formula of Indicated Thermal Efficiency given Relative Efficiency is expressed as Indicated Thermal Efficiency = (Relative Efficiency*Air Standard Efficiency)/100. Here is an example- 4.15 = (8.3*5)/100.
How to calculate Indicated Thermal Efficiency given Relative Efficiency?
With Relative Efficiency r) & Air Standard Efficiency a) we can find Indicated Thermal Efficiency given Relative Efficiency using the formula - Indicated Thermal Efficiency = (Relative Efficiency*Air Standard Efficiency)/100.
What are the other ways to Calculate Indicated Thermal Efficiency?
Here are the different ways to Calculate Indicated Thermal Efficiency-
  • Indicated Thermal Efficiency=((Indicated Power)/(Mass of Fuel Supplied per Second*Calorific Value of Fuel))*100OpenImg
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