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Heat loss from collector Formula

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Heat loss from collector is defined as the heat losses that occur due to convection, conduction and radiation. Check FAQs

q l = U l \cdot A p \cdot (T pm - T a)

q_l - Heat Loss from Collector?U_l - Overall Loss Coefficient?A_p - Area of Absorber Plate?T_pm - Average Temperature of Absorber Plate?T_a - Ambient Air Temperature?

Heat loss from collector Example

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Here is how the Heat loss from collector equation looks like with Values.

Here is how the Heat loss from collector equation looks like with Units.

Here is how the Heat loss from collector equation looks like.

162.5 = 1.25 \cdot 13 \cdot (310 - 300)

162.5W = 1.25W/m²*K \cdot 13m² \cdot (310K - 300K)

162.5 = 1.25 \cdot 13 \cdot (310 - 300)

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Heat loss from collector Solution

Follow our step by step solution on how to calculate Heat loss from collector?

FIRST Step Consider the formula

q l = U l \cdot A p \cdot (T pm - T a)

Next Step Substitute values of Variables

∴

q l = 1.25W/m²*K \cdot 13m² \cdot (310K - 300K)

Next Step Prepare to Evaluate

∴

q l = 1.25 \cdot 13 \cdot (310 - 300)

LAST Step Evaluate

∴

q l = 162.5W

Heat loss from collector Formula Elements

Variables

Heat Loss from Collector

Heat loss from collector is defined as the heat losses that occur due to convection, conduction and radiation.

Symbol: q_l

Measurement: PowerUnit: W

Note: Value should be greater than 0.

Formulas to find Heat Loss from Collector

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

Area of Absorber Plate

Area of absorber plate is defined as the area exposed to the sun that absorbs incident radiation .

Symbol: A_p

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Area of Absorber Plate

Average Temperature of Absorber Plate

Average temperature of absorber plate is defined as the temperature spread across the surface area of the absorber plate.

Symbol: T_pm

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Average Temperature of Absorber Plate

Ambient Air Temperature

Ambient Air Temperature is the temperature where the ramming process starts.

Symbol: T_a

Measurement: TemperatureUnit: K

Note: Value should be greater than 0.

Formulas to find Ambient Air Temperature

Other formulas in Liquid Flat Plate Collectors category

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q u = A p \cdot S flux - q l

Go Instantaneous collection efficiency

η i = \frac{q u}{A c \cdot I T}

Go Transmissivity Absorptivity product

τα = τ \cdot \frac{α}{1 - (1 - α) \cdot ρ d}

Go Bottom loss coefficient

U b = \frac{K Insulation}{δ b}

How to Evaluate Heat loss from collector?

Heat loss from collector evaluator uses Heat Loss from Collector = Overall Loss Coefficient*Area of Absorber Plate*(Average Temperature of Absorber Plate-Ambient Air Temperature) to evaluate the Heat Loss from Collector, The Heat loss from collector formula is defined as the heat losses that occur from the plate due to convection, conduction, and radiation. Heat Loss from Collector is denoted by q_l symbol.

How to evaluate Heat loss from collector using this online evaluator? To use this online evaluator for Heat loss from collector, enter Overall Loss Coefficient (U_l), Area of Absorber Plate (A_p), Average Temperature of Absorber Plate (T_pm) & Ambient Air Temperature (T_a) and hit the calculate button.

FAQs on Heat loss from collector

What is the formula to find Heat loss from collector?

The formula of Heat loss from collector is expressed as Heat Loss from Collector = Overall Loss Coefficient*Area of Absorber Plate*(Average Temperature of Absorber Plate-Ambient Air Temperature). Here is an example- 162.5 = 1.25*13*(310-300).

How to calculate Heat loss from collector?

With Overall Loss Coefficient (U_l), Area of Absorber Plate (A_p), Average Temperature of Absorber Plate (T_pm) & Ambient Air Temperature (T_a) we can find Heat loss from collector using the formula - Heat Loss from Collector = Overall Loss Coefficient*Area of Absorber Plate*(Average Temperature of Absorber Plate-Ambient Air Temperature).

Can the Heat loss from collector be negative?

Yes, the Heat loss from collector, measured in Power can be negative.

Which unit is used to measure Heat loss from collector?

Heat loss from collector is usually measured using the Watt[W] for Power. Kilowatt[W], Milliwatt[W], Microwatt[W] are the few other units in which Heat loss from collector can be measured.

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Heat loss from collector Formula

Heat loss from collector Example

Heat loss from collector Solution

Heat loss from collector Formula Elements

Other formulas in Liquid Flat Plate Collectors category

How to Evaluate Heat loss from collector?

FAQs on Heat loss from collector

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