Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

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# Heat Loss and Insulation

## Heat loss from pipes, tubes and tanks - with and without insulation. Use of materials lke foam, fiberglass, rockwool and more.

### Arithmetic and Logarithmic Mean Temperature Difference

Arithmetic Mean Temperature Difference in Heat Exchangers - AMTD - and Logarithmic Mean Temperature Difference - LMTD - formulas with examples - Online Mean Temperature Calculator.

### Conductive Heat Transfer

Conductive heat transfer takes place in a solid if there is a temperature gradient.

### Convective Heat Transfer

Heat transfer between a solid and a moving fluid is called convection. This is a short tutorial about convective heat transfer.

### Copper Tubes - Heat Losses

Heat loss from uninsulated copper tubes vs. temperature differences between tube and air.

### Copper Tubes - Uninsulated Heat Losses

Heat loss from uninsulated copper pipes - dimensions ranging 1/2 - 4 inches.

### Insulated Copper Tubes - Heat Loss

Heat loss to surrounding air from insulated copper tubes.

### Insulation Materials - Operating Temperature Limits

Temperature limits for commonly used insulation materials.

### Oil Tanks - Heat Loss

Heat loss from lagged and unlagged, sheltered and exposed oil tanks.

### Overall Heat Transfer Coefficients

Walls or heat exchangers - calculate overall heat transfer coefficients.

### Perlite Insulation

Thermal conductivity - k-values - vs. temperature.

### Pipes - Bare Surface Heat Loss

Heat loss vs. surface temperature.

### Pipes - Insulated Heat Loss Diagrams

Heat loss (W/m) from 1/2 to 6 inches insulated pipesĀ - ranging insulation thickness 10 to 80 mm and temperature differences 20 to 180 degC.

### Pipes - Insulated Heat Loss Diagrams

Heat loss (W/ft) diagrams for 1/2 to 6 inches insulated pipesĀ - ranging insulation thickness 0.5 to 4 inches and temperature differences 50 to 350 degF.

### Pipes and Cylinders - Conductive Heat Losses

Conductive heat losses through cylinder or pipe walls.

### Piping - Recommended Insulation Thickness

Recommended insulation thickness for heating systems like hot water and low, medium or high pressure steam systems.

### Polyurethane Insulation

Thermal conductivity - k-values - vs. temperature.

### Radiation - Surface Emissivity Coefficients

Radiation emissivity of common materials like water, ice, snow, grass and more.

Heat transfer due to emission of electromagnetic waves is known as thermal radiation.

### Steam Pipes - Heat Losses

The amount of condensate generated in a steam pipe depends on the heat loss from the pipe to the surroundings.

### Steel Pipes - Heat Loss Diagram

Heat loss from steel pipes and tubes - dimensions 1/2 to 12 inches.

### Submerged Coils - Heat Transfer Coefficients

Heat transfer coefficients for steam and hot water coils submerged in oil tanks.

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