Utilization Factor of Electrical Energy Calculator

✖The Lumen reaching working plane is defined as the amount of luminous flux is given out in a space represented by one unit of solid angle by a source.ⓘ Lumen Reaching Working Plane [L_r]			+10% -10%
✖Lumen emitting from source is defined as the amount of luminous flux is given out in a space represented by one unit of solid angle by a source.ⓘ Lumen Emitting from Source [L_e]			+10% -10%

✖Utilization factor refers to a percentage or factor that represents the efficiency or effectiveness of a lighting system in delivering and utilizing light to the intended area or task.ⓘ Utilization Factor of Electrical Energy [UF]

⎘ Copy

👎

Formula

✖

Utilization Factor of Electrical Energy

Formula

`"UF" = "L"_{"r"}/"L"_{"e"}`

Example

`"0.157895"="6cd"/"38cd"`

Calculator

LaTeX

Reset

👍

Download Advanced Illumination Formulas PDF PDF Image

Utilization Factor of Electrical Energy Solution

STEP 0: Pre-Calculation Summary

Formula Used

Utilization Factor = Lumen Reaching Working Plane/Lumen Emitting from Source
UF = L_r/L_e
This formula uses 3 Variables

Variables Used

Utilization Factor - Utilization factor refers to a percentage or factor that represents the efficiency or effectiveness of a lighting system in delivering and utilizing light to the intended area or task.
Lumen Reaching Working Plane - (Measured in Candela) - The Lumen reaching working plane is defined as the amount of luminous flux is given out in a space represented by one unit of solid angle by a source.
Lumen Emitting from Source - (Measured in Candela) - Lumen emitting from source is defined as the amount of luminous flux is given out in a space represented by one unit of solid angle by a source.

STEP 1: Convert Input(s) to Base Unit

Lumen Reaching Working Plane: 6 Candela --> 6 Candela No Conversion Required
Lumen Emitting from Source: 38 Candela --> 38 Candela No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

UF = L_r/L_e --> 6/38

Evaluating ... ...

UF = 0.157894736842105

STEP 3: Convert Result to Output's Unit

0.157894736842105 --> No Conversion Required

FINAL ANSWER

0.157894736842105 ≈ 0.157895 <-- Utilization Factor

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Electrical » Utilization of Electrical Energy » Illumination » Advanced Illumination » Utilization Factor of Electrical Energy

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!

< 16 Advanced Illumination Calculators

Beer-Lambert Law

Go Intensity of Transmitted Light = Intensity of Light Entering the Material*exp(-Absorption per Concentration Coefficient*Concentration of Absorption Material*Path Length)

Fresnel's Law of Reflection

Go Reflection Loss = (Refractive Index of Medium 2-Refractive Index of Medium 1)^2/(Refractive Index of Medium 2+Refractive Index of Medium 1)^2

Refracted Angle using Snell's Law

Go Refracted Angle = arcsinh((Refractive Index of Medium 1*sin(Incident Angle))/(Refractive Index of Medium 2))

Incident Angle using Snell's Law

Go Incident Angle = arcsinh((Refractive Index of Medium 2*sin(Refracted Angle))/(Refractive Index of Medium 1))

Intensity of Light Transmitted

Go Intensity of Transmitted Light = Intensity of Light Entering the Material*exp(-Absorption Coefficient*Path Length)

Illumination by Lambert Cosine Law

Go Illumination Intensity = (Luminous Intensity*cos(Illumination Angle))/(Length of Illumination^2)

Number of Floodlighting Units

Go Number of Floodlighting Units = (Area to be Lighted*Illumination Intensity)/(0.7*Lumen Flux)

Lambert's Cosine Law

Go Illuminance at Angle of Incidence = Illumination Intensity*cos(Incident Angle)

Spectral Transmission Factor

Go Spectral Transmission Factor = Transmitted Spectral Emission/Spectral Irradiation

Spectral Reflection Factor

Go Spectral Reflection Factor = Reflected Spectral Emission/Spectral Irradiation

Utilization Factor of Electrical Energy

Go Utilization Factor = Lumen Reaching Working Plane/Lumen Emitting from Source

Spectral Luminous Efficacy

Go Spectral Luminous Efficacy = Maximum Sensitivity*Photopic Efficiency Value

Inverse Square Law

Go Luminance = Intensity of Transmitted Light/Distance^2

Specific Consumption

Go Specific Consumption = (2*Input Power)/Candle Power

Luminance for Lambertian Surfaces

Go Luminance = Illumination Intensity/pi

Luminous Intensity

Go Luminous Intensity = Lumen/Solid Angle

Utilization Factor of Electrical Energy Formula

Utilization Factor = Lumen Reaching Working Plane/Lumen Emitting from Source
UF = L_r/L_e

Why is a reversing switch used for Fluorescent Tube Light in d.c. circuit?

A reversing switch is used to reverse the current at intervals to prevent the blackening of the tube at positive end due to migration of the mercury from the positive end to the negative end of the tube.

How to Calculate Utilization Factor of Electrical Energy?

Utilization Factor of Electrical Energy calculator uses Utilization Factor = Lumen Reaching Working Plane/Lumen Emitting from Source to calculate the Utilization Factor, The Utilization Factor of electrical energy formula is defined as the ratio between the total lumens reaching the working plane and the total lumens emitting from the source. Utilization Factor is denoted by UF symbol.

How to calculate Utilization Factor of Electrical Energy using this online calculator? To use this online calculator for Utilization Factor of Electrical Energy, enter Lumen Reaching Working Plane (L_r) & Lumen Emitting from Source (L_e) and hit the calculate button. Here is how the Utilization Factor of Electrical Energy calculation can be explained with given input values -> 0.545455 = 6/38.

FAQ

What is Utilization Factor of Electrical Energy?

The Utilization Factor of electrical energy formula is defined as the ratio between the total lumens reaching the working plane and the total lumens emitting from the source and is represented as UF = L_r/L_e or Utilization Factor = Lumen Reaching Working Plane/Lumen Emitting from Source. The Lumen reaching working plane is defined as the amount of luminous flux is given out in a space represented by one unit of solid angle by a source & Lumen emitting from source is defined as the amount of luminous flux is given out in a space represented by one unit of solid angle by a source.

How to calculate Utilization Factor of Electrical Energy?

The Utilization Factor of electrical energy formula is defined as the ratio between the total lumens reaching the working plane and the total lumens emitting from the source is calculated using Utilization Factor = Lumen Reaching Working Plane/Lumen Emitting from Source. To calculate Utilization Factor of Electrical Energy, you need Lumen Reaching Working Plane (L_r) & Lumen Emitting from Source (L_e). With our tool, you need to enter the respective value for Lumen Reaching Working Plane & Lumen Emitting from Source and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search