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Incident flux when flow is between Cover and Absorber plate Calculator

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✖Convective heat transfer Coeff of solar is the heat transfer coefficient between the absorber plate and the air stream.ⓘ Convective Heat Transfer Coeff of Solar [h_fp]			+10% -10%
✖Average temperature of absorber plate is defined as the temperature spread across the surface area of the absorber plate.ⓘ Average Temperature of Absorber Plate [T_pm]			+10% -10%
✖Inlet fluid temperature flat plate collector is defined as the temperature at which the liquid enters the liquid flat plate collector.ⓘ Inlet Fluid Temperature Flat Plate Collector [T_fi]			+10% -10%
✖Equivalent radiative heat transfer coefficient is defined as the overall heat transfer coefficient, which tells how well heat is conducted through over a series of resistant mediums.ⓘ Equivalent Radiative Heat Transfer Coefficient [h_r]			+10% -10%
✖Temperature of cover is defined as the temperature over the surface of the cover on the collector.ⓘ Temperature of Cover [T_c]			+10% -10%
✖Bottom loss coefficient is evaluated by considering conduction and convection losses from the absorber plate in the downward direction.ⓘ Bottom Loss Coefficient [U_b]			+10% -10%
✖Ambient Air Temperature is the temperature of the surrounding medium.ⓘ Ambient Air Temperature [T_a]			+10% -10%

✖Flux absorbed by plate is defined as the incident solar flux absorbed in the absorber plate.ⓘ Incident flux when flow is between Cover and Absorber plate [S_flux]

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Incident flux when flow is between Cover and Absorber plate Solution

STEP 0: Pre-Calculation Summary

Formula Used

Flux Absorbed by Plate = Convective Heat Transfer Coeff of Solar*(Average Temperature of Absorber Plate-Inlet Fluid Temperature Flat Plate Collector)+(Equivalent Radiative Heat Transfer Coefficient*(Average Temperature of Absorber Plate-Temperature of Cover))+(Bottom Loss Coefficient*(Average Temperature of Absorber Plate-Ambient Air Temperature))
S_flux = h_fp*(T_pm-T_fi)+(h_r*(T_pm-T_c))+(U_b*(T_pm-T_a))
This formula uses 8 Variables

Variables Used

Flux Absorbed by Plate - (Measured in Watt per Square Meter) - Flux absorbed by plate is defined as the incident solar flux absorbed in the absorber plate.
Convective Heat Transfer Coeff of Solar - (Measured in Watt per Square Meter per Kelvin) - Convective heat transfer Coeff of solar is the heat transfer coefficient between the absorber plate and the air stream.
Average Temperature of Absorber Plate - (Measured in Kelvin) - Average temperature of absorber plate is defined as the temperature spread across the surface area of the absorber plate.
Inlet Fluid Temperature Flat Plate Collector - (Measured in Kelvin) - Inlet fluid temperature flat plate collector is defined as the temperature at which the liquid enters the liquid flat plate collector.
Equivalent Radiative Heat Transfer Coefficient - (Measured in Watt per Square Meter per Kelvin) - Equivalent radiative heat transfer coefficient is defined as the overall heat transfer coefficient, which tells how well heat is conducted through over a series of resistant mediums.
Temperature of Cover - (Measured in Kelvin) - Temperature of cover is defined as the temperature over the surface of the cover on the collector.
Bottom Loss Coefficient - (Measured in Watt per Square Meter per Kelvin) - Bottom loss coefficient is evaluated by considering conduction and convection losses from the absorber plate in the downward direction.
Ambient Air Temperature - (Measured in Kelvin) - Ambient Air Temperature is the temperature of the surrounding medium.

STEP 1: Convert Input(s) to Base Unit

Convective Heat Transfer Coeff of Solar: 4.5 Watt per Square Meter per Kelvin --> 4.5 Watt per Square Meter per Kelvin No Conversion Required
Average Temperature of Absorber Plate: 310 Kelvin --> 310 Kelvin No Conversion Required
Inlet Fluid Temperature Flat Plate Collector: 10 Kelvin --> 10 Kelvin No Conversion Required
Equivalent Radiative Heat Transfer Coefficient: 0.8 Watt per Square Meter per Kelvin --> 0.8 Watt per Square Meter per Kelvin No Conversion Required
Temperature of Cover: 13 Kelvin --> 13 Kelvin No Conversion Required
Bottom Loss Coefficient: 0.7 Watt per Square Meter per Kelvin --> 0.7 Watt per Square Meter per Kelvin No Conversion Required
Ambient Air Temperature: 300 Kelvin --> 300 Kelvin No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

S_flux = h_fp*(T_pm-T_fi)+(h_r*(T_pm-T_c))+(U_b*(T_pm-T_a)) --> 4.5*(310-10)+(0.8*(310-13))+(0.7*(310-300))

Evaluating ... ...

S_flux = 1594.6

STEP 3: Convert Result to Output's Unit

1594.6 Watt per Square Meter -->1594.6 Joule per Second per Square Meter (Check conversion here)

FINAL ANSWER

1594.6 Joule per Second per Square Meter <-- Flux Absorbed by Plate

(Calculation completed in 00.020 seconds)

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Created by ADITYA RAWAT

DIT UNIVERSITY (DITU), Dehradun

ADITYA RAWAT has created this Calculator and 50+ more calculators!

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National Institute Of Technology (NIT), Hamirpur

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< Solar Air Heater Calculators

Effective heat transfer coefficient for variation

LaTeX Go Effective Heat Transfer Coefficient = Convective Heat Transfer Coeff of Solar*(1+(2*Fin Height*Fin Effectiveness*Convective Heat Transfer Coeff of Solar Fin)/(Distance between Fins*Convective Heat Transfer Coeff of Solar))+(Equivalent Radiative Heat Transfer Coefficient*Convective Heat Transfer Coeff of Solar Bottom)/(Equivalent Radiative Heat Transfer Coefficient+Convective Heat Transfer Coeff of Solar Bottom)

Effective heat transfer coefficient

LaTeX Go Effective Heat Transfer Coefficient = Convective Heat Transfer Coeff of Solar+(Equivalent Radiative Heat Transfer Coefficient*Convective Heat Transfer Coeff of Solar Bottom)/(Equivalent Radiative Heat Transfer Coefficient+Convective Heat Transfer Coeff of Solar Bottom)

Equivalent radiative heat transfer coefficient

LaTeX Go Equivalent Radiative Heat Transfer Coefficient = (4*[Stefan-BoltZ]*(Average Temperature of Absorber Plate+Mean Temperature of Plate below)^3)/((1/Emissivity of Absorber Plate Surface)+(1/Emissivity of Bottom Plate Surface)-1*8)

Collector efficiency factor

LaTeX Go Collector Efficiency Factor = (1+Overall Loss Coefficient/Effective Heat Transfer Coefficient)^-1

Incident flux when flow is between Cover and Absorber plate Formula

LaTeX Go

What is incident flux?

Radiative flux, also known as radiative flux density or radiation flux (or sometimes power flux density), is the amount of power radiated through a given area, in the form of photons or other elementary particles.

How to Calculate Incident flux when flow is between Cover and Absorber plate?

Incident flux when flow is between Cover and Absorber plate calculator uses Flux Absorbed by Plate = Convective Heat Transfer Coeff of Solar*(Average Temperature of Absorber Plate-Inlet Fluid Temperature Flat Plate Collector)+(Equivalent Radiative Heat Transfer Coefficient*(Average Temperature of Absorber Plate-Temperature of Cover))+(Bottom Loss Coefficient*(Average Temperature of Absorber Plate-Ambient Air Temperature)) to calculate the Flux Absorbed by Plate, Incident flux when flow is between Cover and Absorber plate formula is defined as the rate of energy transfer per unit area from the absorber plate to the flowing fluid in a solar air heater, influenced by factors such as plate temperatures, heat transfer coefficients, and fluid flow rates. Flux Absorbed by Plate is denoted by S_flux symbol.

How to calculate Incident flux when flow is between Cover and Absorber plate using this online calculator? To use this online calculator for Incident flux when flow is between Cover and Absorber plate, enter Convective Heat Transfer Coeff of Solar (h_fp), Average Temperature of Absorber Plate (T_pm), Inlet Fluid Temperature Flat Plate Collector (T_fi), Equivalent Radiative Heat Transfer Coefficient (h_r), Temperature of Cover (T_c), Bottom Loss Coefficient (U_b) & Ambient Air Temperature (T_a) and hit the calculate button. Here is how the Incident flux when flow is between Cover and Absorber plate calculation can be explained with given input values -> 1594.6 = 4.5*(310-10)+(0.8*(310-13))+(0.7*(310-300)).

FAQ

What is Incident flux when flow is between Cover and Absorber plate?

Incident flux when flow is between Cover and Absorber plate formula is defined as the rate of energy transfer per unit area from the absorber plate to the flowing fluid in a solar air heater, influenced by factors such as plate temperatures, heat transfer coefficients, and fluid flow rates and is represented as S_flux = h_fp*(T_pm-T_fi)+(h_r*(T_pm-T_c))+(U_b*(T_pm-T_a)) or Flux Absorbed by Plate = Convective Heat Transfer Coeff of Solar*(Average Temperature of Absorber Plate-Inlet Fluid Temperature Flat Plate Collector)+(Equivalent Radiative Heat Transfer Coefficient*(Average Temperature of Absorber Plate-Temperature of Cover))+(Bottom Loss Coefficient*(Average Temperature of Absorber Plate-Ambient Air Temperature)). Convective heat transfer Coeff of solar is the heat transfer coefficient between the absorber plate and the air stream, Average temperature of absorber plate is defined as the temperature spread across the surface area of the absorber plate, Inlet fluid temperature flat plate collector is defined as the temperature at which the liquid enters the liquid flat plate collector, Equivalent radiative heat transfer coefficient is defined as the overall heat transfer coefficient, which tells how well heat is conducted through over a series of resistant mediums, Temperature of cover is defined as the temperature over the surface of the cover on the collector, Bottom loss coefficient is evaluated by considering conduction and convection losses from the absorber plate in the downward direction & Ambient Air Temperature is the temperature of the surrounding medium.

How to calculate Incident flux when flow is between Cover and Absorber plate?

Incident flux when flow is between Cover and Absorber plate formula is defined as the rate of energy transfer per unit area from the absorber plate to the flowing fluid in a solar air heater, influenced by factors such as plate temperatures, heat transfer coefficients, and fluid flow rates is calculated using Flux Absorbed by Plate = Convective Heat Transfer Coeff of Solar*(Average Temperature of Absorber Plate-Inlet Fluid Temperature Flat Plate Collector)+(Equivalent Radiative Heat Transfer Coefficient*(Average Temperature of Absorber Plate-Temperature of Cover))+(Bottom Loss Coefficient*(Average Temperature of Absorber Plate-Ambient Air Temperature)). To calculate Incident flux when flow is between Cover and Absorber plate, you need Convective Heat Transfer Coeff of Solar (h_fp), Average Temperature of Absorber Plate (T_pm), Inlet Fluid Temperature Flat Plate Collector (T_fi), Equivalent Radiative Heat Transfer Coefficient (h_r), Temperature of Cover (T_c), Bottom Loss Coefficient (U_b) & Ambient Air Temperature (T_a). With our tool, you need to enter the respective value for Convective Heat Transfer Coeff of Solar, Average Temperature of Absorber Plate, Inlet Fluid Temperature Flat Plate Collector, Equivalent Radiative Heat Transfer Coefficient, Temperature of Cover, Bottom Loss Coefficient & Ambient Air Temperature 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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