Effective heat transfer coefficient Solution

STEP 0: Pre-Calculation Summary
Formula Used
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)
he = hfp+(hr*hfb)/(hr+hfb)
This formula uses 4 Variables
Variables Used
Effective Heat Transfer Coefficient - (Measured in Watt per Square Meter per Kelvin) - Effective Heat Transfer Coefficient is the rate of heat transfer between the solar air heater and the surrounding air, affecting its overall performance.
Convective Heat Transfer Coeff of Solar - (Measured in Watt per Square Meter per Kelvin) - Convective Heat Transfer Coeff of Solar is the rate of heat transfer between the solar air heater and the surrounding air.
Equivalent Radiative Heat Transfer Coefficient - (Measured in Watt per Square Meter per Kelvin) - Equivalent Radiative Heat Transfer Coefficient is the rate of heat transfer between the solar air heater and its surroundings through radiation.
Convective Heat Transfer Coeff of Solar Bottom - (Measured in Watt per Square Meter per Kelvin) - Convective Heat Transfer Coeff of Solar Bottom is the rate of heat transfer between the solar absorber plate and the surrounding air in a solar air heater.
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
Equivalent Radiative Heat Transfer Coefficient: 1.162423 Watt per Square Meter per Kelvin --> 1.162423 Watt per Square Meter per Kelvin No Conversion Required
Convective Heat Transfer Coeff of Solar Bottom: 3.2 Watt per Square Meter per Kelvin --> 3.2 Watt per Square Meter per Kelvin No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
he = hfp+(hr*hfb)/(hr+hfb) --> 4.5+(1.162423*3.2)/(1.162423+3.2)
Evaluating ... ...
he = 5.35268063184153
STEP 3: Convert Result to Output's Unit
5.35268063184153 Watt per Square Meter per Kelvin --> No Conversion Required
FINAL ANSWER
5.35268063184153 5.352681 Watt per Square Meter per Kelvin <-- Effective Heat Transfer Coefficient
(Calculation completed in 00.004 seconds)

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Created by ADITYA RAWAT
DIT UNIVERSITY (DITU), Dehradun
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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

Effective heat transfer coefficient Formula

​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)
he = hfp+(hr*hfb)/(hr+hfb)

What is Effective Heat Transfer?

Effective heat transfer is defined as the ratio of the actual heat transfer to the maximum possible heat transfer.

How to Calculate Effective heat transfer coefficient?

Effective heat transfer coefficient calculator uses 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) to calculate the Effective Heat Transfer Coefficient, Effective heat transfer coefficient formula is defined as a measure of the overall heat transfer ability of a solar air heater, taking into account the heat transfer coefficients of the fluid and the radiative heat transfer between the absorber plate and the surroundings. Effective Heat Transfer Coefficient is denoted by he symbol.

How to calculate Effective heat transfer coefficient using this online calculator? To use this online calculator for Effective heat transfer coefficient, enter Convective Heat Transfer Coeff of Solar (hfp), Equivalent Radiative Heat Transfer Coefficient (hr) & Convective Heat Transfer Coeff of Solar Bottom (hfb) and hit the calculate button. Here is how the Effective heat transfer coefficient calculation can be explained with given input values -> 5.352681 = 4.5+(1.162423*3.2)/(1.162423+3.2).

FAQ

What is Effective heat transfer coefficient?
Effective heat transfer coefficient formula is defined as a measure of the overall heat transfer ability of a solar air heater, taking into account the heat transfer coefficients of the fluid and the radiative heat transfer between the absorber plate and the surroundings and is represented as he = hfp+(hr*hfb)/(hr+hfb) or 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). Convective Heat Transfer Coeff of Solar is the rate of heat transfer between the solar air heater and the surrounding air, Equivalent Radiative Heat Transfer Coefficient is the rate of heat transfer between the solar air heater and its surroundings through radiation & Convective Heat Transfer Coeff of Solar Bottom is the rate of heat transfer between the solar absorber plate and the surrounding air in a solar air heater.
How to calculate Effective heat transfer coefficient?
Effective heat transfer coefficient formula is defined as a measure of the overall heat transfer ability of a solar air heater, taking into account the heat transfer coefficients of the fluid and the radiative heat transfer between the absorber plate and the surroundings is calculated using 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). To calculate Effective heat transfer coefficient, you need Convective Heat Transfer Coeff of Solar (hfp), Equivalent Radiative Heat Transfer Coefficient (hr) & Convective Heat Transfer Coeff of Solar Bottom (hfb). With our tool, you need to enter the respective value for Convective Heat Transfer Coeff of Solar, Equivalent Radiative Heat Transfer Coefficient & Convective Heat Transfer Coeff of Solar Bottom 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 Effective Heat Transfer Coefficient?
In this formula, Effective Heat Transfer Coefficient uses Convective Heat Transfer Coeff of Solar, Equivalent Radiative Heat Transfer Coefficient & Convective Heat Transfer Coeff of Solar Bottom. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • 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)
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