Overall thermal resistance in condenser Calculator

↳

⤿

Condensers

Air Conditioning Systems

Air Refrigeration Cycles

Air Refrigeration Systems

Basics

Ducts

Psychrometry

Refrigerant Compressors

Simple Vapour Compression Refrigeration Systems

⤿

Heat Transfer in Condenser

✖Overall Temperature Difference is defined as the difference between final temperature and initial temperature.ⓘ Overall Temperature Difference [ΔT_Overall]			+10% -10%
✖Heat Transfer is the amount of heat that is transferred per unit of time in some material, usually measured in watts (joules per second).ⓘ Heat Transfer [q]			+10% -10%

✖Thermal resistance is a heat property and a measurement of a temperature difference by which an object or material resists a heat flow.ⓘ Overall thermal resistance in condenser [R_th]

⎘ Copy

👎

Formula

✖

Overall thermal resistance in condenser

Formula

`"R"_{"th"} = "ΔT"_{"Overall"}/"q"`

Example

`"3.197674K/W"="55K"/"17.2W"`

Calculator

LaTeX

Reset

👍

Download Refrigeration and Air Conditioning Formula PDF

Overall thermal resistance in condenser Solution

STEP 0: Pre-Calculation Summary

Formula Used

Thermal Resistance = Overall Temperature Difference/Heat Transfer
R_th = ΔT_Overall/q
This formula uses 3 Variables

Variables Used

Thermal Resistance - (Measured in Kelvin per Watt) - Thermal resistance is a heat property and a measurement of a temperature difference by which an object or material resists a heat flow.
Overall Temperature Difference - (Measured in Kelvin) - Overall Temperature Difference is defined as the difference between final temperature and initial temperature.
Heat Transfer - (Measured in Watt) - Heat Transfer is the amount of heat that is transferred per unit of time in some material, usually measured in watts (joules per second).

STEP 1: Convert Input(s) to Base Unit

Overall Temperature Difference: 55 Kelvin --> 55 Kelvin No Conversion Required
Heat Transfer: 17.2 Watt --> 17.2 Watt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_th = ΔT_Overall/q --> 55/17.2

Evaluating ... ...

R_th = 3.19767441860465

STEP 3: Convert Result to Output's Unit

3.19767441860465 Kelvin per Watt --> No Conversion Required

FINAL ANSWER

3.19767441860465 ≈ 3.197674 Kelvin per Watt <-- Thermal Resistance

(Calculation completed in 00.004 seconds)

You are here -

Home » Physics » Refrigeration and Air Conditioning » Condensers » Heat Transfer in Condenser » Overall thermal resistance in condenser

Credits

Created by Abhishek Dharmendra Bansile

Vishwakarma Institute of Information Technology, Pune (VIIT Pune), Pune

Abhishek Dharmendra Bansile has created this Calculator and 100+ more calculators!

Verified by sanjay shiva

national institute of technology hamirpur (NITH ), hamirpur , himachal pradesh

sanjay shiva has verified this Calculator and 100+ more calculators!

< 16 Heat Transfer in Condenser 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 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

Heat Transfer in Condenser given Overall Thermal Resistance

Go Heat Transfer = Temperature Difference/Thermal Resistance

Overall thermal resistance in condenser Formula

Thermal Resistance = Overall Temperature Difference/Heat Transfer
R_th = ΔT_Overall/q

Fouling Factor

The water used in water-cooled condensers always contains a certain amount of minerals and other foreign materials, depending upon its source. These materials form deposits inside the condenser water tubes. This is called water fouling. The deposits insulate the tubes, reduce their heat transfer rate and restrict the water flow.

How to Calculate Overall thermal resistance in condenser?

Overall thermal resistance in condenser calculator uses Thermal Resistance = Overall Temperature Difference/Heat Transfer to calculate the Thermal Resistance, The Overall thermal resistance in condenser formula is defined as the temperature difference, at a steady-state, between two defined surfaces of a material or construction that induces a unit heat flow rate through a unit area. Thermal Resistance is denoted by R_th symbol.

How to calculate Overall thermal resistance in condenser using this online calculator? To use this online calculator for Overall thermal resistance in condenser, enter Overall Temperature Difference (ΔT_Overall) & Heat Transfer (q) and hit the calculate button. Here is how the Overall thermal resistance in condenser calculation can be explained with given input values -> 3.197674 = 55/17.2.

FAQ

What is Overall thermal resistance in condenser?

The Overall thermal resistance in condenser formula is defined as the temperature difference, at a steady-state, between two defined surfaces of a material or construction that induces a unit heat flow rate through a unit area and is represented as R_th = ΔT_Overall/q or Thermal Resistance = Overall Temperature Difference/Heat Transfer. Overall Temperature Difference is defined as the difference between final temperature and initial temperature & Heat Transfer is the amount of heat that is transferred per unit of time in some material, usually measured in watts (joules per second).

How to calculate Overall thermal resistance in condenser?

The Overall thermal resistance in condenser formula is defined as the temperature difference, at a steady-state, between two defined surfaces of a material or construction that induces a unit heat flow rate through a unit area is calculated using Thermal Resistance = Overall Temperature Difference/Heat Transfer. To calculate Overall thermal resistance in condenser, you need Overall Temperature Difference (ΔT_Overall) & Heat Transfer (q). With our tool, you need to enter the respective value for Overall Temperature Difference & Heat Transfer and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search