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Heat Rejected during Constant pressure Cooling Process Formula

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Heat Rejected is the amount of heat energy released from the refrigerant to the surrounding air during the air refrigeration process. Check FAQs

Q R = C p \cdot (T 2 - T 3)

Q_R - Heat Rejected?C_p - Specific Heat Capacity at Constant Pressure?T₂ - Ideal Temp at End of Isentropic Compression?T₃ - Ideal Temp at End of Isobaric Cooling?

Heat Rejected during Constant pressure Cooling Process Example

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Here is how the Heat Rejected during Constant pressure Cooling Process equation looks like with Values.

Here is how the Heat Rejected during Constant pressure Cooling Process equation looks like with Units.

Here is how the Heat Rejected during Constant pressure Cooling Process equation looks like.

30.0495 = 1.005 \cdot (356.5 - 326.6)

30.0495kJ/kg = 1.005kJ/kg*K \cdot (356.5K - 326.6K)

30.0495 = 1.005 \cdot (356.5 - 326.6)

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Heat Rejected during Constant pressure Cooling Process Solution

Follow our step by step solution on how to calculate Heat Rejected during Constant pressure Cooling Process?

FIRST Step Consider the formula

Q R = C p \cdot (T 2 - T 3)

Next Step Substitute values of Variables

∴

Q R = 1.005kJ/kg*K \cdot (356.5K - 326.6K)

Next Step Convert Units

∴

Q R = 1005J/(kg*K) \cdot (356.5K - 326.6K)

Next Step Prepare to Evaluate

∴

Q R = 1005 \cdot (356.5 - 326.6)

Next Step Evaluate

∴

Q R = 30049.5J/kg

LAST Step Convert to Output's Unit

∴

Q R = 30.0495kJ/kg

Heat Rejected during Constant pressure Cooling Process Formula Elements

Variables

Heat Rejected

Heat Rejected is the amount of heat energy released from the refrigerant to the surrounding air during the air refrigeration process.

Symbol: Q_R

Measurement: Specific EnergyUnit: kJ/kg

Note: Value can be positive or negative.

Formulas to find Heat Rejected

Specific Heat Capacity at Constant Pressure

Specific Heat Capacity at Constant Pressure is the amount of heat required to change the temperature of air in refrigeration systems by one degree Celsius.

Symbol: C_p

Measurement: Specific Heat CapacityUnit: kJ/kg*K

Note: Value can be positive or negative.

Formulas to find Specific Heat Capacity at Constant Pressure

Ideal Temp at End of Isentropic Compression

Ideal Temp at end of Isentropic Compression is the temperature reached at the end of an isentropic compression process in an air refrigeration system.

Symbol: T₂

Measurement: TemperatureUnit: K

Note: Value should be greater than 0.

Formulas to find Ideal Temp at End of Isentropic Compression

Ideal Temp at End of Isobaric Cooling

Ideal Temp at end of Isobaric Cooling is the temperature of air at the end of the isobaric cooling process in an air refrigeration system.

Symbol: T₃

Measurement: TemperatureUnit: K

Note: Value should be greater than 0.

Formulas to find Ideal Temp at End of Isobaric Cooling

Other formulas in Air Refrigeration Cycles category

Go Energy Performance Ratio of Heat Pump

COP theoretical = \frac{Q delivered}{W per min}

Go Relative Coefficient of Performance

COP relative = \frac{COP actual}{COP theoretical}

Go Theoretical Coefficient of Performance of Refrigerator

COP theoretical = \frac{Q ref}{w}

Go Compression or Expansion Ratio

r p = \frac{P 2}{P 1}

How to Evaluate Heat Rejected during Constant pressure Cooling Process?

Heat Rejected during Constant pressure Cooling Process evaluator uses Heat Rejected = Specific Heat Capacity at Constant Pressure*(Ideal Temp at End of Isentropic Compression-Ideal Temp at End of Isobaric Cooling) to evaluate the Heat Rejected, Heat Rejected during Constant pressure Cooling Process formula is defined as the amount of heat energy transferred from the system to the surroundings during a constant pressure cooling process, which is a crucial parameter in refrigeration and air conditioning systems to determine the cooling load and system performance. Heat Rejected is denoted by Q_R symbol.

How to evaluate Heat Rejected during Constant pressure Cooling Process using this online evaluator? To use this online evaluator for Heat Rejected during Constant pressure Cooling Process, enter Specific Heat Capacity at Constant Pressure (C_p), Ideal Temp at End of Isentropic Compression (T₂) & Ideal Temp at End of Isobaric Cooling (T₃) and hit the calculate button.

FAQs on Heat Rejected during Constant pressure Cooling Process

What is the formula to find Heat Rejected during Constant pressure Cooling Process?

The formula of Heat Rejected during Constant pressure Cooling Process is expressed as Heat Rejected = Specific Heat Capacity at Constant Pressure*(Ideal Temp at End of Isentropic Compression-Ideal Temp at End of Isobaric Cooling). Here is an example- 0.030049 = 1005*(356.5-326.6).

How to calculate Heat Rejected during Constant pressure Cooling Process?

With Specific Heat Capacity at Constant Pressure (C_p), Ideal Temp at End of Isentropic Compression (T₂) & Ideal Temp at End of Isobaric Cooling (T₃) we can find Heat Rejected during Constant pressure Cooling Process using the formula - Heat Rejected = Specific Heat Capacity at Constant Pressure*(Ideal Temp at End of Isentropic Compression-Ideal Temp at End of Isobaric Cooling).

Can the Heat Rejected during Constant pressure Cooling Process be negative?

Yes, the Heat Rejected during Constant pressure Cooling Process, measured in Specific Energy can be negative.

Which unit is used to measure Heat Rejected during Constant pressure Cooling Process?

Heat Rejected during Constant pressure Cooling Process is usually measured using the Kilojoule per Kilogram[kJ/kg] for Specific Energy. Joule per Kilogram[kJ/kg], Joule per Gram[kJ/kg], Joule per Centigram[kJ/kg] are the few other units in which Heat Rejected during Constant pressure Cooling Process can be measured.

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