Sai Venkata Phanindra Chary Arendra
Vallurupalli Nageswara Rao Vignana Jyothi Institute of Engineering and Technology (VNRVJIET), Hyderabad
Sai Venkata Phanindra Chary Arendra has created this Calculator and 50+ more calculators!
Vinay Mishra
Indian Institute for Aeronautical Engineering and Information Technology (IIAEIT), Pune
Vinay Mishra has verified this Calculator and 100+ more calculators!

11 Other formulas that you can solve using the same Inputs

Diagonal of a Rectangle when breadth and area are given
Diagonal=sqrt(((Area)^2/(Breadth)^2)+(Breadth)^2) GO
Diagonal of a Rectangle when length and area are given
Diagonal=sqrt(((Area)^2/(Length)^2)+(Length)^2) GO
Side of a Kite when other side and area are given
Side A=(Area*cosec(Angle Between Sides))/Side B GO
Perimeter of rectangle when area and rectangle length are given
Perimeter=(2*Area+2*(Length)^2)/Length GO
Buoyant Force
Buoyant Force=Pressure*Area GO
Perimeter of a square when area is given
Perimeter=4*sqrt(Area) GO
Diagonal of a Square when area is given
Diagonal=sqrt(2*Area) GO
Length of rectangle when area and breadth are given
Length=Area/Breadth GO
Breadth of rectangle when area and length are given
Breadth=Area/Length GO
Pressure when force and area are given
Pressure=Force/Area GO
Stress
Stress=Force/Area GO

7 Other formulas that calculate the same Output

Heat flow rate through a cylindrical composite wall of 3 layers
heat flow rate=(inner surface temperature -outer surface temperature)/(((ln(radius2/radius1))/(2*pi*thermal conductivity 1*length of cylinder))+((ln(radius 3/radius2))/(2*pi*thermal conductivity 2*length of cylinder))+((ln(radius4/radius 3))/(2*pi*thermal conductivity 3*length of cylinder))) GO
Heat flow rate through a cylindrical composite wall of 2 layers
heat flow rate=(inner surface temperature -outer surface temperature)/(((ln(radius2/radius1))/(2*pi*thermal conductivity 1*length of cylinder))+((ln(radius 3/radius2))/(2*pi*thermal conductivity 2*length of cylinder))) GO
Heat flow rate through a spherical composite wall of 2 layers in series
heat flow rate=(inner surface temperature -outer surface temperature)/(((1/(4*pi*thermal conductivity 1))*((1/radius1)-(1/radius2)))+((1/(4*pi*thermal conductivity 2))*((1/radius2)-(1/radius 3)))) GO
Heat flow rate through a composite wall of 2 layers in series
heat flow rate=(inner surface temperature -outer surface temperature)/((length 1/(thermal conductivity 1*Area))+(length 2/(thermal conductivity 2*Area))) GO
Heat flow rate through a cylindrical wall
heat flow rate=(inner surface temperature -outer surface temperature)/((ln(radius2/radius1))/(2*pi*Thermal Conductivity*length of cylinder)) GO
Heat flow rate through a spherical wall
heat flow rate=(inner surface temperature -outer surface temperature)/((radius2-radius1)/(4*pi*radius1*radius2*Thermal Conductivity)) GO
Heat flow required
heat flow rate=Area*Overall Heat Transfer Coefficient*Logarithmic mean temperature difference GO

Heat flow rate through a composite wall of 3 layers in series Formula

heat flow rate=(inner surface temperature -outer surface temperature)/((length 1/(thermal conductivity 1*Area))+(length 2/(thermal conductivity 2*Area))+(length 3/(thermal conductivity 3*Area)))
Q=(Ti-To)/((l1/(k1*A))+(L2/(k2*A))+(L3/(k3*A)))
More formulas
Thermal Resistance of a wall GO
Thermal resistance of a composite wall with 2 layers in series GO
Thermal resistance of a composite wall with 3 layers in series GO
Thickness of the plane wall required for a given temperature difference GO
Area of the plane wall required for a given temperature difference GO
Thermal conductivity of the material required to maintain a given temperature difference GO
Outer surface temperature of the wall for a given heat flow rate GO
Heat flow rate through a composite wall of 2 layers in series GO
Outer surface temperature of a composite wall of 2 layers for a given heat flow rate GO
Outer surface temperature of a composite wall of 3 layers for a given heat flow rate GO
Length of the 2nd layer of the composite wall for a given temperature difference GO
Length of the 3rd layer of the composite wall for a given temperature difference GO
Area of a composite wall of 2 layers GO
Area of a composite wall of 3 layers GO
Inner surface temperature of a plane wall GO
Inner surface temperature of a composite wall of 2 layers in series GO
Inner surface temperature of a composite wall of 3 layers in series GO
Interface temperature of composite wall of 2 layers when inner surface temperature is known GO
Interface temperature of composite wall of 2 layers when outer surface temperature is known GO
Total thermal resistance of a plain wall with convection on either side GO
Temperature at distance x from the inner surface in the wall GO

What is heat flow rate?

The rate of heat flow is the amount of heat that is transferred per unit of time in some material, usually measured in watt. Heat is the flow of thermal energy driven by thermal non-equilibrium.

How to Calculate Heat flow rate through a composite wall of 3 layers in series?

Heat flow rate through a composite wall of 3 layers in series calculator uses heat flow rate=(inner surface temperature -outer surface temperature)/((length 1/(thermal conductivity 1*Area))+(length 2/(thermal conductivity 2*Area))+(length 3/(thermal conductivity 3*Area))) to calculate the heat flow rate, The heat flow rate through a composite wall of 3 layers in series formula is defined as the rate of heat flow through a composite of 3 layers in series when the inner and outer surface temperatures, lengths/thickness of the layers, area and thermal conductivities are known. . heat flow rate and is denoted by Q symbol.

How to calculate Heat flow rate through a composite wall of 3 layers in series using this online calculator? To use this online calculator for Heat flow rate through a composite wall of 3 layers in series, enter inner surface temperature (Ti), outer surface temperature (To), length 1 (l1), thermal conductivity 1 (k1), Area (A), length 2 (L2), thermal conductivity 2 (k2), length 3 (L3) and thermal conductivity 3 (k3) and hit the calculate button. Here is how the Heat flow rate through a composite wall of 3 layers in series calculation can be explained with given input values -> 0 = (1-1)/((1/(1*50))+(1/(1*50))+(1/(1*50))).

FAQ

What is Heat flow rate through a composite wall of 3 layers in series?
The heat flow rate through a composite wall of 3 layers in series formula is defined as the rate of heat flow through a composite of 3 layers in series when the inner and outer surface temperatures, lengths/thickness of the layers, area and thermal conductivities are known. and is represented as Q=(Ti-To)/((l1/(k1*A))+(L2/(k2*A))+(L3/(k3*A))) or heat flow rate=(inner surface temperature -outer surface temperature)/((length 1/(thermal conductivity 1*Area))+(length 2/(thermal conductivity 2*Area))+(length 3/(thermal conductivity 3*Area))). Inner surface temperature is the temperature at the inner surface of the wall (either plane wall or cylindrical wall or spherical wall, etc.), outer surface temperature is the temperature at the outer surface of the wall (either plane wall or cylindrical wall or spherical wall, etc.) , Length 1 is the length of the first body, Thermal conductivity 1 is the thermal conductivity of the first body, The area is the amount of two-dimensional space taken up by an object, Length 2 is the length of the second body/abject/section, Thermal conductivity 2 is the thermal conductivity of the second body , Length 3 is the length of the third body/object/section and Thermal conductivity 3 is the thermal conductivity of the third body .
How to calculate Heat flow rate through a composite wall of 3 layers in series?
The heat flow rate through a composite wall of 3 layers in series formula is defined as the rate of heat flow through a composite of 3 layers in series when the inner and outer surface temperatures, lengths/thickness of the layers, area and thermal conductivities are known. is calculated using heat flow rate=(inner surface temperature -outer surface temperature)/((length 1/(thermal conductivity 1*Area))+(length 2/(thermal conductivity 2*Area))+(length 3/(thermal conductivity 3*Area))). To calculate Heat flow rate through a composite wall of 3 layers in series, you need inner surface temperature (Ti), outer surface temperature (To), length 1 (l1), thermal conductivity 1 (k1), Area (A), length 2 (L2), thermal conductivity 2 (k2), length 3 (L3) and thermal conductivity 3 (k3). With our tool, you need to enter the respective value for inner surface temperature , outer surface temperature, length 1, thermal conductivity 1, Area, length 2, thermal conductivity 2, length 3 and thermal conductivity 3 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 flow rate?
In this formula, heat flow rate uses inner surface temperature , outer surface temperature, length 1, thermal conductivity 1, Area, length 2, thermal conductivity 2, length 3 and thermal conductivity 3. We can use 7 other way(s) to calculate the same, which is/are as follows -
  • heat flow rate=(inner surface temperature -outer surface temperature)/((length 1/(thermal conductivity 1*Area))+(length 2/(thermal conductivity 2*Area)))
  • heat flow rate=(inner surface temperature -outer surface temperature)/((ln(radius2/radius1))/(2*pi*Thermal Conductivity*length of cylinder))
  • heat flow rate=(inner surface temperature -outer surface temperature)/(((ln(radius2/radius1))/(2*pi*thermal conductivity 1*length of cylinder))+((ln(radius 3/radius2))/(2*pi*thermal conductivity 2*length of cylinder)))
  • heat flow rate=(inner surface temperature -outer surface temperature)/(((ln(radius2/radius1))/(2*pi*thermal conductivity 1*length of cylinder))+((ln(radius 3/radius2))/(2*pi*thermal conductivity 2*length of cylinder))+((ln(radius4/radius 3))/(2*pi*thermal conductivity 3*length of cylinder)))
  • heat flow rate=(inner surface temperature -outer surface temperature)/((radius2-radius1)/(4*pi*radius1*radius2*Thermal Conductivity))
  • heat flow rate=(inner surface temperature -outer surface temperature)/(((1/(4*pi*thermal conductivity 1))*((1/radius1)-(1/radius2)))+((1/(4*pi*thermal conductivity 2))*((1/radius2)-(1/radius 3))))
  • heat flow rate=Area*Overall Heat Transfer Coefficient*Logarithmic mean temperature difference
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