Absorptivity Calculator

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Absorptivity, Reflectivity and Transmissivity

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✖Absorbed radiation is the amount of radiation energy absorbed by the body per its unit surface area.ⓘ Absorbed Radiation [G_abs]			+10% -10%
✖Incident radiation is the amount of radiation flux incident on a surface.ⓘ Incident Radiation [G]			+10% -10%

✖Absorptivity is the fraction of incident radiation flux absorbed by the body.ⓘ Absorptivity [α]

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Formula

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Absorptivity

Formula

`"α" = "G"_{"abs"}/"G"`

Example

`"0.433333"="260W/m²"/"600W/m²"`

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Absorptivity Solution

STEP 0: Pre-Calculation Summary

Formula Used

Absorptivity = Absorbed Radiation/Incident Radiation
α = G_abs/G
This formula uses 3 Variables

Variables Used

Absorptivity - Absorptivity is the fraction of incident radiation flux absorbed by the body.
Absorbed Radiation - (Measured in Watt per Square Meter) - Absorbed radiation is the amount of radiation energy absorbed by the body per its unit surface area.
Incident Radiation - (Measured in Watt per Square Meter) - Incident radiation is the amount of radiation flux incident on a surface.

STEP 1: Convert Input(s) to Base Unit

Absorbed Radiation: 260 Watt per Square Meter --> 260 Watt per Square Meter No Conversion Required
Incident Radiation: 600 Watt per Square Meter --> 600 Watt per Square Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

α = G_abs/G --> 260/600

Evaluating ... ...

α = 0.433333333333333

STEP 3: Convert Result to Output's Unit

0.433333333333333 --> No Conversion Required

FINAL ANSWER

0.433333333333333 ≈ 0.433333 <-- Absorptivity

(Calculation completed in 00.004 seconds)

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Created by Sai Venkata Phanindra Chary Arendra

Vallurupalli Nageswara Rao Vignana Jyothi Institute of Engineering and Technology (VNRVJIET), Hyderabad

Sai Venkata Phanindra Chary Arendra has created this Calculator and 100+ more calculators!

Verified by Rajat Vishwakarma

University Institute of Technology RGPV (UIT - RGPV), Bhopal

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< 18 Absorptivity, Reflectivity and Transmissivity Calculators

Absorbed Radiation using Incident, Reflected and Transmitted Radiation

Go Absorbed Radiation = Incident Radiation-Reflected Radiation-Transmitted Radiation

Incident Radiation using Absorbed, Reflected and Transmitted Radiation

Go Incident Radiation = Absorbed Radiation+Reflected Radiation+Transmitted Radiation

Reflected Radiation given Incident, Absorbed and Transmitted Radiation

Go Reflected Radiation = Incident Radiation-Absorbed Radiation-Transmitted Radiation

Transmitted Radiation using Incident, Absorbed and Reflected Radiation

Go Transmitted Radiation = Incident Radiation-Absorbed Radiation-Reflected Radiation

Incident Radiation using Transmissivity and Transmitted Radiation

Go Incident Radiation = Transmitted Radiation/Transmissivity

Transmissivity given Transmitted Radiation and Incident Radiation

Go Transmissivity = Transmitted Radiation/Incident Radiation

Transmitted Radiation using Transmissivity and Incident Radiation

Go Transmitted Radiation = Transmissivity*Incident Radiation

Incident Radiation given Reflectivity and Reflected Radiation

Go Incident Radiation = Reflected Radiation/Reflectivity

Reflected Radiation given Reflectivity and Incident Radiation

Go Reflected Radiation = Reflectivity*Incident Radiation

Reflectivity using Reflected Radiation and Incident Radiation

Go Reflectivity = Reflected Radiation/Incident Radiation

Absorbed Radiation using Absorptivity and Incident Radiation

Go Absorbed Radiation = Absorptivity*Incident Radiation

Incident Radiation using Absorptivity and Absorbed Energy

Go Incident Radiation = Absorbed Radiation/Absorptivity

Absorptivity

Go Absorptivity = Absorbed Radiation/Incident Radiation

Absorptivity using Reflectivity and Transmissivity

Go Absorptivity = 1-Reflectivity-Transmissivity

Reflectivity given Absorptivity and Transmissivity

Go Reflectivity = 1-Absorptivity-Transmissivity

Transmissivity using Absorptivity and Reflectivity

Go Transmissivity = 1-Absorptivity-Reflectivity

Absorptivity using Reflectivity for Opaque Surface

Go Absorptivity = 1-Reflectivity

Reflectivity using Absorptivity for Opaque Surface

Go Reflectivity = 1-Absorptivity

Absorptivity Formula

Absorptivity = Absorbed Radiation/Incident Radiation
α = G_abs/G

What is absorptivity?

When radiation strikes a surface, part of it is absorbed, part of it is reflected, and the remaining part, if any, is transmitted. The fraction of irradiation absorbed by the surface is called the absorptivity

How to Calculate Absorptivity?

Absorptivity calculator uses Absorptivity = Absorbed Radiation/Incident Radiation to calculate the Absorptivity, The Absorptivity formula is defined as the amount of incident radiation absorbed by the body. It is the ratio of absorbed radiation to the incident radiation. Absorptivity is denoted by α symbol.

How to calculate Absorptivity using this online calculator? To use this online calculator for Absorptivity, enter Absorbed Radiation (G_abs) & Incident Radiation (G) and hit the calculate button. Here is how the Absorptivity calculation can be explained with given input values -> 0.433333 = 260/600.

FAQ

What is Absorptivity?

The Absorptivity formula is defined as the amount of incident radiation absorbed by the body. It is the ratio of absorbed radiation to the incident radiation and is represented as α = G_abs/G or Absorptivity = Absorbed Radiation/Incident Radiation. Absorbed radiation is the amount of radiation energy absorbed by the body per its unit surface area & Incident radiation is the amount of radiation flux incident on a surface.

How to calculate Absorptivity?

The Absorptivity formula is defined as the amount of incident radiation absorbed by the body. It is the ratio of absorbed radiation to the incident radiation is calculated using Absorptivity = Absorbed Radiation/Incident Radiation. To calculate Absorptivity, you need Absorbed Radiation (G_abs) & Incident Radiation (G). With our tool, you need to enter the respective value for Absorbed Radiation & Incident Radiation and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Absorptivity?

In this formula, Absorptivity uses Absorbed Radiation & Incident Radiation. We can use 2 other way(s) to calculate the same, which is/are as follows -

Absorptivity = 1-Reflectivity-Transmissivity
Absorptivity = 1-Reflectivity

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