✖The Coefficient of Performance of Refrigerator is defined as heat at a lower temperature per unit of work.ⓘ Coefficient of Performance of Refrigerator [COP_Refrigerator]

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✖Heat Rejection Factor is the load on the condenser per unit of refrigeration capacity.ⓘ Heat Rejection Factor given COP [HRF]

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Formula

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Heat Rejection Factor given COP

Formula

`"HRF" = 1+(1/"COP"_{"Refrigerator"})`

Example

`"1.5"=1+(1/"2")`

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Heat Rejection Factor given COP Solution

STEP 0: Pre-Calculation Summary

Formula Used

Heat Rejection Factor = 1+(1/Coefficient of Performance of Refrigerator)
HRF = 1+(1/COP_Refrigerator)
This formula uses 2 Variables

Variables Used

Heat Rejection Factor - Heat Rejection Factor is the load on the condenser per unit of refrigeration capacity.
Coefficient of Performance of Refrigerator - The Coefficient of Performance of Refrigerator is defined as heat at a lower temperature per unit of work.

STEP 1: Convert Input(s) to Base Unit

Coefficient of Performance of Refrigerator: 2 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

HRF = 1+(1/COP_Refrigerator) --> 1+(1/2)

Evaluating ... ...

HRF = 1.5

STEP 3: Convert Result to Output's Unit

1.5 --> No Conversion Required

FINAL ANSWER

1.5 <-- Heat Rejection Factor

(Calculation completed in 00.004 seconds)

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< 21 Heat Transfer Calculators

Average Coefficient of heat transfer for vapour condensing outside of horizontal tubes of diameter D

Go Average Heat Transfer Coefficient = 0.725*(((Thermal Conductivity^3)*(Density of Liquid Condensate^2)*Acceleration due to Gravity*Latent Heat of Vaporization)/(Number of Tubes*Diameter of Tube*Viscosity of Film*Temperature Difference))^(1/4)

Overall Coefficient of Heat Transfer for Condensation on Vertical Surface

Go Overall Heat Transfer Coefficient = 0.943*(((Thermal Conductivity^3)*(Density of Liquid Condensate-Density)*Acceleration due to Gravity*Latent Heat of Vaporization)/(Viscosity of Film*Height Of Surface*Temperature Difference))^(1/4)

Mean Surface area of Tube when Heat transfer takes place from outside to inside surface of tube

Go Surface Area = (Heat Transfer*Tube Thickness)/(Thermal Conductivity*(Outside Surface Temperature-Inside Surface temperature))

Temperature at Outside Surface of Tube given Heat Transfer

Go Outside Surface Temperature = ((Heat Transfer*Tube Thickness)/(Thermal Conductivity*Surface Area))+Inside Surface temperature

Temperature at Inside Surface of Tube given Heat Transfer

Go Inside Surface temperature = Outside Surface Temperature+((Heat Transfer*Tube Thickness)/(Thermal Conductivity*Surface Area))

Thickness of Tube when Heat transfer takes places from outside to inside surface of tube

Go Tube Thickness = (Thermal Conductivity*Surface Area*(Outside Surface Temperature-Inside Surface temperature))/Heat Transfer

Heat transfer takes place from outside surface to inside surface of tube

Go Heat Transfer = (Thermal Conductivity*Surface Area*(Outside Surface Temperature-Inside Surface temperature))/Tube Thickness

Temperature of Refrigerant Vapour condensing Film given Heat Transfer

Go Vapour condensing film temperature = (Heat Transfer/(Heat Transfer Coefficient*Area))+Outside Surface Temperature

Temperature at Outside Surface of Tube provided Heat Transfer

Go Outside Surface Temperature = Vapour condensing film temperature-(Heat Transfer/(Heat Transfer Coefficient*Area))

Heat Transfer takes place from vapour refrigerant to outside of tube

Go Heat Transfer = Heat Transfer Coefficient*Area*(Vapour condensing film temperature-Outside Surface Temperature)

Overall Temperature difference when Heat transfer takes place from outside to inside surface of tube

Go Overall Temperature Difference = (Heat Transfer*Tube Thickness)/(Thermal Conductivity*Surface Area)

Heat Rejection Factor

Go Heat Rejection Factor = (Refrigeration Capacity+Compressor work done)/Refrigeration Capacity

Heat Transfer in Condenser given Overall Heat Transfer Coefficient

Go Heat Transfer = Overall Heat Transfer Coefficient*Surface Area*Temperature Difference

Overall Temperature difference when Heat Transfer from vapour refrigerant to outside of tube

Go Overall Temperature Difference = Heat Transfer/(Heat Transfer Coefficient*Area)

Overall Temperature difference given Heat Transfer

Go Overall Temperature Difference = Heat Transfer*Thermal Resistance

Overall thermal resistance in condenser

Go Thermal Resistance = Overall Temperature Difference/Heat Transfer

Work done by Compressor given Load on Condenser

Go Compressor work done = Load on Condenser-Refrigeration Capacity

Refrigeration Capacity given Load on Condenser

Go Refrigeration Capacity = Load on Condenser-Compressor work done

Load on Condenser

Go Load on Condenser = Refrigeration Capacity+Compressor work done

Heat Transfer in Condenser given Overall Thermal Resistance

Go Heat Transfer = Temperature Difference/Thermal Resistance

Heat Rejection Factor given COP

Go Heat Rejection Factor = 1+(1/Coefficient of Performance of Refrigerator)

Heat Rejection Factor given COP Formula

Heat Rejection Factor = 1+(1/Coefficient of Performance of Refrigerator)
HRF = 1+(1/COP_Refrigerator)

What is COP in refrigeration?

The COP is determined by the ratio between energy usage of the compressor and the amount of useful cooling at the evaporator (for a refrigeration installation) or useful heat extracted from the condenser (for a heat pump). A high COP value represents a high efficiency.

How to Calculate Heat Rejection Factor given COP?

Heat Rejection Factor given COP calculator uses Heat Rejection Factor = 1+(1/Coefficient of Performance of Refrigerator) to calculate the Heat Rejection Factor, The Heat Rejection Factor given COP formula is defined as the load on the condenser per unit of refrigeration capacity. Heat Rejection Factor is denoted by HRF symbol.

How to calculate Heat Rejection Factor given COP using this online calculator? To use this online calculator for Heat Rejection Factor given COP, enter Coefficient of Performance of Refrigerator (COP_Refrigerator) and hit the calculate button. Here is how the Heat Rejection Factor given COP calculation can be explained with given input values -> 1.5 = 1+(1/2).

FAQ

What is Heat Rejection Factor given COP?

The Heat Rejection Factor given COP formula is defined as the load on the condenser per unit of refrigeration capacity and is represented as HRF = 1+(1/COP_Refrigerator) or Heat Rejection Factor = 1+(1/Coefficient of Performance of Refrigerator). The Coefficient of Performance of Refrigerator is defined as heat at a lower temperature per unit of work.

How to calculate Heat Rejection Factor given COP?

The Heat Rejection Factor given COP formula is defined as the load on the condenser per unit of refrigeration capacity is calculated using Heat Rejection Factor = 1+(1/Coefficient of Performance of Refrigerator). To calculate Heat Rejection Factor given COP, you need Coefficient of Performance of Refrigerator (COP_Refrigerator). With our tool, you need to enter the respective value for Coefficient of Performance of Refrigerator 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 Heat Rejection Factor?

In this formula, Heat Rejection Factor uses Coefficient of Performance of Refrigerator. We can use 1 other way(s) to calculate the same, which is/are as follows -

Heat Rejection Factor = (Refrigeration Capacity+Compressor work done)/Refrigeration Capacity

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