Energy Efficiency Calculator

✖Theoretical Energy is the theoretical value of energy required to depositing of a metal.ⓘ Theoretical Energy [E_t]			+10% -10%
✖Actual Energy is the actual value of energy required to depositing of a metal.ⓘ Actual Energy [E_a]			+10% -10%

✖Energy Efficiency is the ratio of the theoretical value of energy to the actual value of energy.ⓘ Energy Efficiency [η]

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Formula

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Energy Efficiency

Formula

`"η" = "E"_{"t"}/"E"_{"a"}`

Example

`"0.521739"="1.2KJ"/"2.3KJ"`

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Energy Efficiency Solution

STEP 0: Pre-Calculation Summary

Formula Used

Energy Efficiency = Theoretical Energy/Actual Energy
η = E_t/E_a
This formula uses 3 Variables

Variables Used

Energy Efficiency - Energy Efficiency is the ratio of the theoretical value of energy to the actual value of energy.
Theoretical Energy - (Measured in Joule) - Theoretical Energy is the theoretical value of energy required to depositing of a metal.
Actual Energy - (Measured in Joule) - Actual Energy is the actual value of energy required to depositing of a metal.

STEP 1: Convert Input(s) to Base Unit

Theoretical Energy: 1.2 Kilojoule --> 1200 Joule (Check conversion here)
Actual Energy: 2.3 Kilojoule --> 2300 Joule (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

η = E_t/E_a --> 1200/2300

Evaluating ... ...

η = 0.521739130434783

STEP 3: Convert Result to Output's Unit

0.521739130434783 --> No Conversion Required

FINAL ANSWER

0.521739130434783 ≈ 0.521739 <-- Energy Efficiency

(Calculation completed in 00.004 seconds)

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Home » Engineering » Electrical » Utilization of Electrical Energy » Electric Heating » Furnace Heating » Energy Efficiency

Credits

Created by Prahalad Singh

Jaipur Engineering College and Research Centre (JECRC), Jaipur

Prahalad Singh has created this Calculator and 100+ more calculators!

Verified by Payal Priya

Birsa Institute of Technology (BIT), Sindri

Payal Priya has verified this Calculator and 1900+ more calculators!

< 8 Furnace Heating Calculators

Heat Conduction

Go Heat Conduction = (Thermal Conductivity*Area of Furnace*Total Time*(Temperature of Wall 1-Temperature of Wall 2))/Thickness of Wall

Energy Required by Furnace to Melt Steel

Go Energy = (Mass*Specific Heat*(Temperature of Wall 2-Temperature of Wall 1))+(Mass*Latent Heat)

Thickness of Cylinder

Go Thickness of Cylinder = 1/(2*pi)*sqrt((Specific Resistance*10^9)/(Relative Permeability*Frequency of Induction Furnace))

Equivalent Inductance of Furnace

Go Inductance = (pi*4*pi*10^-7*Number of Coil Turns^2*Diameter of Melt^2)/(4*Height of Melt)

Heat Radiation

Go Heat Radiation = 5.72*Emissivity*Radiating Efficiency*((Temperature of Wall 1/100)^4-(Temperature of Wall 2/100)^4)

Operating Frequency

Go Frequency of Induction Furnace = (Specific Resistance*10^9)/(4*pi^2*Thickness of Cylinder^2*Relative Permeability)

Specific Resistance using Operating Frequency

Go Specific Resistance = (Frequency of Induction Furnace*4*pi^2*Thickness of Cylinder^2*Relative Permeability)/10^9

Energy Efficiency

Go Energy Efficiency = Theoretical Energy/Actual Energy

Energy Efficiency Formula

Energy Efficiency = Theoretical Energy/Actual Energy
η = E_t/E_a

What is a good energy efficiency rating?

EPC rating 92 to 100 SAP points is the most efficient rating of a good energy efficiency.
EPC rating 1 to 20 SAP points is least efficient.

How to Calculate Energy Efficiency?

Energy Efficiency calculator uses Energy Efficiency = Theoretical Energy/Actual Energy to calculate the Energy Efficiency, The Energy Efficiency formula is defined as the ratio of the theoretical value of energy to the actual value of energy required to depositing of a metal. Energy Efficiency is denoted by η symbol.

How to calculate Energy Efficiency using this online calculator? To use this online calculator for Energy Efficiency, enter Theoretical Energy (E_t) & Actual Energy (E_a) and hit the calculate button. Here is how the Energy Efficiency calculation can be explained with given input values -> 0.521739 = 1200/2300.

FAQ

What is Energy Efficiency?

The Energy Efficiency formula is defined as the ratio of the theoretical value of energy to the actual value of energy required to depositing of a metal and is represented as η = E_t/E_a or Energy Efficiency = Theoretical Energy/Actual Energy. Theoretical Energy is the theoretical value of energy required to depositing of a metal & Actual Energy is the actual value of energy required to depositing of a metal.

How to calculate Energy Efficiency?

The Energy Efficiency formula is defined as the ratio of the theoretical value of energy to the actual value of energy required to depositing of a metal is calculated using Energy Efficiency = Theoretical Energy/Actual Energy. To calculate Energy Efficiency, you need Theoretical Energy (E_t) & Actual Energy (E_a). With our tool, you need to enter the respective value for Theoretical Energy & Actual Energy and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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