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Collector efficiency factor concentrating collector Formula

GoCollector efficiency factor for compound parabolic collector Formula

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Collector efficiency factor is defined as the ratio of the actual thermal collector power to the power of an ideal collector whose absorber temperature is equal to the fluid temperature. Check FAQs

F′ = \frac{1}{U l \cdot (\frac{1}{U l} + \frac{D o}{D i \cdot h f})}

F′ - Collector Efficiency Factor?U_l - Overall Loss Coefficient?D_o - Outer Diameter of Absorber Tube?D_i - Inner Diameter Absorber Tube?h_f - Heat Transfer Coefficient Inside?

Collector efficiency factor concentrating collector Example

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Here is how the Collector efficiency factor concentrating collector equation looks like with Values.

Here is how the Collector efficiency factor concentrating collector equation looks like with Units.

Here is how the Collector efficiency factor concentrating collector equation looks like.

0.095 = \frac{1}{1.25 \cdot (\frac{1}{1.25} + \frac{2}{0.15 \cdot 1.75})}

0.095 = \frac{1}{1.25W/m²*K \cdot (\frac{1}{1.25W/m²*K} + \frac{2m}{0.15m \cdot 1.75W/m²*K})}

0.095 = \frac{1}{1.25 \cdot (\frac{1}{1.25} + \frac{2}{0.15 \cdot 1.75})}

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Collector efficiency factor concentrating collector Solution

Follow our step by step solution on how to calculate Collector efficiency factor concentrating collector?

FIRST Step Consider the formula

F′ = \frac{1}{U l \cdot (\frac{1}{U l} + \frac{D o}{D i \cdot h f})}

Next Step Substitute values of Variables

∴

F′ = \frac{1}{1.25W/m²*K \cdot (\frac{1}{1.25W/m²*K} + \frac{2m}{0.15m \cdot 1.75W/m²*K})}

Next Step Prepare to Evaluate

∴

F′ = \frac{1}{1.25 \cdot (\frac{1}{1.25} + \frac{2}{0.15 \cdot 1.75})}

Next Step Evaluate

∴

F′ = 0.0950226244343891

LAST Step Rounding Answer

∴

F′ = 0.095

Collector efficiency factor concentrating collector Formula Elements

Variables

Collector Efficiency Factor

Collector efficiency factor is defined as the ratio of the actual thermal collector power to the power of an ideal collector whose absorber temperature is equal to the fluid temperature.

Symbol: F′

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Collector Efficiency Factor

Overall Loss Coefficient

Overall loss coefficient is defined as the heat loss from collector per unit area of absorber plate and temperature difference between absorber plate and surrounding air.

Symbol: U_l

Measurement: Heat Transfer CoefficientUnit: W/m²*K

Note: Value should be greater than 0.

Formulas to find Overall Loss Coefficient

Outer Diameter of Absorber Tube

Outer diameter of absorber tube is the measurement of the outside edges of the tube passing through its center.

Symbol: D_o

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Outer Diameter of Absorber Tube

Inner Diameter Absorber Tube

Inner diameter absorber tube is defined as the inside diameter of absorber tube.

Symbol: D_i

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Inner Diameter Absorber Tube

Heat Transfer Coefficient Inside

Heat transfer coefficient inside is the heat transfer coefficient on the inside surface of the tube.

Symbol: h_f

Measurement: Heat Transfer CoefficientUnit: W/m²*K

Note: Value can be positive or negative.

Formulas to find Heat Transfer Coefficient Inside

Other Formulas to find Collector Efficiency Factor

Go Collector efficiency factor for compound parabolic collector

F′ = {(U l \cdot (\frac{1}{U l} + (\frac{b}{N \cdot π \cdot D i \cdot h f})))}^{- 1}

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Go Useful heat gain in concentrating collector

q u = A a \cdot S - q l

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Ψ = \frac{π - β - 2 \cdot Φ + 2 \cdot δ}{3}

How to Evaluate Collector efficiency factor concentrating collector?

Collector efficiency factor concentrating collector evaluator uses Collector Efficiency Factor = 1/(Overall Loss Coefficient*(1/Overall Loss Coefficient+Outer Diameter of Absorber Tube/(Inner Diameter Absorber Tube*Heat Transfer Coefficient Inside))) to evaluate the Collector Efficiency Factor, The Collector efficiency factor concentrating collector formula is defined as the ratio of the actual thermal collector power to the power of an ideal collector whose absorber temperature is equal to the fluid temperature. Collector Efficiency Factor is denoted by F′ symbol.

How to evaluate Collector efficiency factor concentrating collector using this online evaluator? To use this online evaluator for Collector efficiency factor concentrating collector, enter Overall Loss Coefficient (U_l), Outer Diameter of Absorber Tube (D_o), Inner Diameter Absorber Tube (D_i) & Heat Transfer Coefficient Inside (h_f) and hit the calculate button.

FAQs on Collector efficiency factor concentrating collector

What is the formula to find Collector efficiency factor concentrating collector?

The formula of Collector efficiency factor concentrating collector is expressed as Collector Efficiency Factor = 1/(Overall Loss Coefficient*(1/Overall Loss Coefficient+Outer Diameter of Absorber Tube/(Inner Diameter Absorber Tube*Heat Transfer Coefficient Inside))). Here is an example- 0.095023 = 1/(1.25*(1/1.25+2/(0.15*1.75))).

How to calculate Collector efficiency factor concentrating collector?

With Overall Loss Coefficient (U_l), Outer Diameter of Absorber Tube (D_o), Inner Diameter Absorber Tube (D_i) & Heat Transfer Coefficient Inside (h_f) we can find Collector efficiency factor concentrating collector using the formula - Collector Efficiency Factor = 1/(Overall Loss Coefficient*(1/Overall Loss Coefficient+Outer Diameter of Absorber Tube/(Inner Diameter Absorber Tube*Heat Transfer Coefficient Inside))).

What are the other ways to Calculate Collector Efficiency Factor?

Here are the different ways to Calculate Collector Efficiency Factor-

Collector Efficiency Factor=(Overall Loss Coefficient*(1/Overall Loss Coefficient+(Absorber Surface Width/(Number of Tubes*pi*Inner Diameter Absorber Tube*Heat Transfer Coefficient Inside))))^-1

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Collector efficiency factor concentrating collector Formula

​GoCollector efficiency factor for compound parabolic collector Formula

Collector efficiency factor concentrating collector Example

Collector efficiency factor concentrating collector Solution

Collector efficiency factor concentrating collector Formula Elements

Other Formulas to find Collector Efficiency Factor

Other formulas in Concentrating Collectors category

How to Evaluate Collector efficiency factor concentrating collector?

FAQs on Collector efficiency factor concentrating collector

Variable Name

GoCollector efficiency factor for compound parabolic collector Formula