Number of Lamps Required for Illumination Solution

STEP 0: Pre-Calculation Summary
Formula Used
Number of Lamp = (Illumination Intensity*Area of Illumination)/(Luminous Flux*Utilization Factor*Maintenance Factor)
NLamp = (Ev*A)/(F*UF*MF)
This formula uses 6 Variables
Variables Used
Number of Lamp - Number of lamp simply the no. of lamps required for fitting.
Illumination Intensity - (Measured in Lux) - Illumination Intensity is defined as the number of lumens, falling on the surface, per unit area.
Area of Illumination - (Measured in Square Meter) - Area of Illumination is defined as the area illuminated by a luminous source.
Luminous Flux - (Measured in Lumen) - Luminous Flux, or luminous power, is the measure of the perceived power of light.
Utilization Factor - Utilization Factor is Proportion of light reaching working plane to the light output of lamps.
Maintenance Factor - Maintenance Factor is the ratio of illuminance at end of maintenance period to the initial illuminance.
STEP 1: Convert Input(s) to Base Unit
Illumination Intensity: 1.02 Lux --> 1.02 Lux No Conversion Required
Area of Illumination: 41 Square Meter --> 41 Square Meter No Conversion Required
Luminous Flux: 42 Lumen --> 42 Lumen No Conversion Required
Utilization Factor: 0.18 --> No Conversion Required
Maintenance Factor: 2 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
NLamp = (Ev*A)/(F*UF*MF) --> (1.02*41)/(42*0.18*2)
Evaluating ... ...
NLamp = 2.76587301587302
STEP 3: Convert Result to Output's Unit
2.76587301587302 --> No Conversion Required
FINAL ANSWER
2.76587301587302 2.765873 <-- Number of Lamp
(Calculation completed in 00.003 seconds)

Credits

Created by Prahalad Singh
Jaipur Engineering College and Research Centre (JECRC), Jaipur
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Birsa Institute of Technology (BIT), Sindri
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7 Methods of Lighting Calculators

Number of Lamps Required for Illumination
Go Number of Lamp = (Illumination Intensity*Area of Illumination)/(Luminous Flux*Utilization Factor*Maintenance Factor)
Intensity of Light Transmitted
Go Intensity of Transmitted Light = Intensity of Light Entering the Material*exp(-Absorption Coefficient*Path Length)
Number of Floodlighting Units
Go Number of Floodlighting Units = (Area to be Lighted*Illumination Intensity)/(0.7*Lumen Flux)
Spectral Transmission Factor
Go Spectral Transmission Factor = Transmitted Spectral Emission/Spectral Irradiation
Spectral Reflection Factor
Go Spectral Reflection Factor = Reflected Spectral Emission/Spectral Irradiation
Spectral Luminous Efficacy
Go Spectral Luminous Efficacy = Maximum Sensitivity*Photopic Efficiency Value
Luminance for Lambertian Surfaces
Go Luminance = Illumination Intensity/pi

Number of Lamps Required for Illumination Formula

Number of Lamp = (Illumination Intensity*Area of Illumination)/(Luminous Flux*Utilization Factor*Maintenance Factor)
NLamp = (Ev*A)/(F*UF*MF)

What is the biblical definition of illumination?

The most sumptuous works that they produced are now described as 'illuminated', meaning that they are enhanced by the application of gold or silver and painted or drawn decoration.

How to Calculate Number of Lamps Required for Illumination?

Number of Lamps Required for Illumination calculator uses Number of Lamp = (Illumination Intensity*Area of Illumination)/(Luminous Flux*Utilization Factor*Maintenance Factor) to calculate the Number of Lamp, The Number of lamps Required for Illumination formula is defined as the ratio of the product of illumination & area to the product of luminous flux, utilization factor, maintenance fator. Number of Lamp is denoted by NLamp symbol.

How to calculate Number of Lamps Required for Illumination using this online calculator? To use this online calculator for Number of Lamps Required for Illumination, enter Illumination Intensity (Ev), Area of Illumination (A), Luminous Flux (F), Utilization Factor (UF) & Maintenance Factor (MF) and hit the calculate button. Here is how the Number of Lamps Required for Illumination calculation can be explained with given input values -> 2.765873 = (1.02*41)/(42*0.18*2).

FAQ

What is Number of Lamps Required for Illumination?
The Number of lamps Required for Illumination formula is defined as the ratio of the product of illumination & area to the product of luminous flux, utilization factor, maintenance fator and is represented as NLamp = (Ev*A)/(F*UF*MF) or Number of Lamp = (Illumination Intensity*Area of Illumination)/(Luminous Flux*Utilization Factor*Maintenance Factor). Illumination Intensity is defined as the number of lumens, falling on the surface, per unit area, Area of Illumination is defined as the area illuminated by a luminous source, Luminous Flux, or luminous power, is the measure of the perceived power of light, Utilization Factor is Proportion of light reaching working plane to the light output of lamps & Maintenance Factor is the ratio of illuminance at end of maintenance period to the initial illuminance.
How to calculate Number of Lamps Required for Illumination?
The Number of lamps Required for Illumination formula is defined as the ratio of the product of illumination & area to the product of luminous flux, utilization factor, maintenance fator is calculated using Number of Lamp = (Illumination Intensity*Area of Illumination)/(Luminous Flux*Utilization Factor*Maintenance Factor). To calculate Number of Lamps Required for Illumination, you need Illumination Intensity (Ev), Area of Illumination (A), Luminous Flux (F), Utilization Factor (UF) & Maintenance Factor (MF). With our tool, you need to enter the respective value for Illumination Intensity, Area of Illumination, Luminous Flux, Utilization Factor & Maintenance Factor 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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