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

# Condensation of Steam - Heat Transfer

## Heat transfer when steam condensates.

The heat released when condensing steam can be expressed as

Q = he M                        (1)

where

Q = quantity of heat released (kJ, Btu)

Ms = mass of condensing steam (kg, lb)

he = specific evaporation enthalpy of steam (kJ/kg, Btu/lb)

The heat transfer rate - or power - in a condensing steam flow can be expressed as

q = he ms                        (2)

where

q = heat transfer (kW, Btu/h)

ms = steam flow rate (kg/s, lb/h)

### Example - Heat released when Condensing Steam

5 kg of steam with atmospheric pressure, temperature 100 oC and evaporation enthalpy 2257 kJ/kg is condensated. The heat transfer can be calculated as

Q = (2257 kJ/kg) (5 kg)

= 11285 kJ

### Example - Heat Transfer Rate - or Power - in a Condensing Steam Flow

The heat transfer rate in a condensing steam flow rate of 8 kg/h (0.0022 kg/s), atmospheric pressure and temperature 100 oC - can be calculated as

q = (2257 kJ/kg) (0.0022 kg/s)

= 5 kJ/s (kW)

## Related Topics

• ### Thermodynamics

Calculate heat, work, temperature and energy. The thermodynamics of steam and condensate systems. Water and Ice properties.

## Related Documents

• ### 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.
• ### Carnot Efficiency

The efficiency of the Carnot cycle.
• ### Convective Heat Transfer

Heat transfer between a solid and a moving fluid is called convection. This is a short tutorial about convective heat transfer.
• ### Energy Transfer Equation

Fluid energy transfer.
• ### Heat Transfer Coefficients in Heat Exchanger Surface Combinations

Average overall heat transmission coefficients for fluid and surface combinations like Water to Air, Water to Water, Air to Air, Steam to Water and more.
• ### Heat, Work and Energy

Heat vs. work vs. energy.
• ### Heating Systems - Steam and Condensate Loads

Calculating steam and condensate loads in steam heated systems.
• ### Heating Water by Injecting Steam

Water can be heated by injecting steam.
• ### Overall Heat Transfer Coefficients

Walls or heat exchangers - calculate overall heat transfer coefficients.
• ### Pipes Submerged in Water - Heat Emission

Heat emision from steam or water heating pipes submerged in water - assisted (forced) or natural circulation.
• ### Properties of Saturated Steam - SI Units

Saturated Steam Table with steam properties as specific volume, density, specific enthalpy and specific entropy.
• ### Saturated Steam - Properties - Imperial Units

Steam table with sensible, latent and total heat, and specific volume at different gauge pressures and temperatures.
• ### Steam & Condensate Equations

Steam consumption and condensate generation when heating liquid or gas flows
• ### Steam - Flow vs. kW Rating

Calculate steam flow rate vs. kW rating.
• ### Steam and Vapor Enthalpy

Vapor and steam enthalpy, specific enthalpy of saturated liquid, saturated vapor and superheated vapor.
• ### Steam Heating Air

Calculate steam heated air systems.
• ### Steam Heating Processes - Load Calculating

Calculating the amount of steam in non-flow batch and continuous flow heating processes.
• ### Submerged Coils - Heat Transfer Coefficients

Heat transfer coefficients for steam and hot water coils submerged in oil tanks.
• ### Superheated Steam - Enthalpy

Enthalpy of steam superheated to temperatures above it's boiling point.
• ### Wet Steam - Enthalpy

Wet steam, dryness fraction and enthalpy.

## Search

Search is the most efficient way to navigate the Engineering ToolBox.

## Engineering ToolBox - SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

## Citation

• The Engineering ToolBox (2008). Condensation of Steam - Heat Transfer . [online] Available at: https://www.engineeringtoolbox.com/condensing-steam-d_1056.html [Accessed Day Month Year].

Modify the access date according your visit.

8.21.8

.