Heat loss
Temp. change in Pipes/ducts
Temperature in tanks
Ext. condensation
Int. condensation
Frost prot.
Sound att.
Economy
Project information (name, reference, person):
Select calculation type:
Pipe
Circular duct
Rectangular duct
Int. insulated duct
Surface
Int. insulated surface
Orientation
Horizontal
Vertical
Select calculation criteria:
Heat loss for a given insulation thickness
Insulation needed for a given surface temp.
Maximum surface temp. [°C]:
Insulation needed for a given heat loss
Maximum heat loss [W/m]:
Insulation needed according to EN 12828
Energy waste factor (0-1):
Given insulation class (EN 12828)
Insulation class (1-6):
Facing (outside surface)
User defined emissivity:
Dimensions
Pipe/duct diameter [mm]:
Height duct/surface [mm]:
Width duct [mm]:
Length pipe/duct [m]:
Surface area [m²]:
Uninsulated emissivity:
Insulation (1st layer)
Insulation thickness (standard) [mm]:
User defined thickness [mm]:
Conditions
Indoors
Ambient temp. [°C]:
Temp. media [°C]:
Outdoors
Wind velocity [m/s]:
Airflow [m³/h]
Airflow [l/s]
Airflow [m/s]
Given heat transfer coeff. [W/m²K]:
2nd layer of insulation
Insulation thickness (standard) [mm]:
User defined thickness [mm]:
Calculate energy use
Operating hours [h/year]:
Energy cost pr kWh:
CO2-emission [g/kWh]:
Currency:
Valves, fittings and flanges
3rd layer of insulation
Insulation thickness (standard) [mm]:
User defined thickness [mm]:
Uninsulated suspensions
Additional heat loss is calculated according to table A.1 in ISO 12241
Select type:
User defined:
Eq. pipe length [m]:
Number of units:
Calculated results
Value
Calculated results
Needed insulation thickness
Std. insulation thickness
Project information (name, reference, person):
Select calculation type:
Pipe
Circular duct
Rectangular duct
Internally insulated duct
Calculate annual consumption
Operating hours [h/year]:
CO2-emission [g/kWh]:
Energy cost pr kWh:
Currency:
Media/fluid (always air in ducts)
User defined fluid
Density [kg/m³]:
Thermal capacity [J/kgK]:
Freezing point [°C]:
Inlet temperature [°C]:
Media/fluid temperature at inlet
Pipe/duct sections
Section of pipe/duct, enter data for a section below and then press 'Add section' to update the calculation
Description of section
Orientation
Horizontal
Vertical
Dimensions
Pipe/duct diameter [mm]:
Height duct [mm]:
Length pipe/duct [m]:
Width duct [mm]:
Uninsulated section
Insulation (1st layer)
Insulation thickness (standard) [mm]:
User defined thickness [mm]:
Facing (outside surface)
User defined facing, emissivity:
Uninsulated suspensions
Additional heat loss is calculated according to table A.1 in ISO 12241
2nd layer of insulation
Insulation thickness (standard) [mm]:
User defined thickness [mm]:
Conditions
Indoors
Ambient temp. [°C]:
Media flow [m³/h]
Media flow [l/s]
Media flow [m/s]
Outdoors
Wind velocity [m/s]:
Heat transfer coeff. [W/m/²K]:
Given heat transfer coeff.
Valves, fittings and flanges
Select type:
User defined type:
Eq. pipe length [m]:
Number of units:
Section
Temp. at outlet
Heat loss
Ext. heat transfer coeff.
Section
Temp. at outlet
Heat loss
Ext. heat transfer coeff.
Int. heat transfer coeff.
Summary
Value
Total heat loss
Average heat loss
Annual energy consumption
Annual CO2-emission
Annual energy cost
Project information (name, reference, person):
Select shape:
Cube
Cylinder
Sphere
Dimensions (internal)
Diameter [m]:
Length [m]:
Height [m]:
Width [m]:
Depth [m]:
Calculation criteria
Calculate media temperature after storage time
Calculate storage time until final media temperature
Initial media/fluid temperature [°C]:
Storage time [h];
Final media temperature [°C]:
Media/fluid
User defined fluid
Density [kg/m³]:
Thermal capacity [J/kgK]:
Freezing point [°C]:
Conditions
Indoors
Ambient temp. [°C]:
Outdoors
Wind velocity [m/s]:
Given heat transfer coeffisient [W/m/²K]:
Insulation
Insulation thickness (standard) [mm]:
User defined thickness [mm]:
Facing (outside surface)
User defined facing, emissivity:
Description
Value
Media temperature during storage time
Nettleseren kan ikke vise grafer
Project information (name, reference, person):
Select calculation type:
Pipe
Circular duct
Rectangular duct
Int. insulated duct
Surface
Int. insulated surface
Orientation
Horizontal
Vertical
Facing (outside surface)
User defined facing, emissivity:
Dimensions
Pipe/duct diameter [mm]:
Height duct/surface [mm]:
Width duct [mm]:
Conditions
Indoors
Ambient temp. [°C]:
Temp. media [°C]:
Outdoors
Wind velocity [m/s]:
Relative humidity [%]:
Given heat transfer coeff. [W/m²K]:
Insulation
Calculated results
Value
Calculated results
Needed insulation thickness
Std. insulation thickness
Project information (name, reference, person):
Select duct type:
Circular duct
Rect. duct
Orientation
Horizontal
Vertical
Dimensions
Diameter [mm]:
Height [mm]:
Width [mm]:
Length [m]:
Media
Inlet temp. [°C]:
Airflow [m³/h]
Airflow [l/s]
Airflow [m/s]
Rel. humidity [%]:
Facing (outside surface)
User defined facing, emissivity:
Conditions
Indoors
Ambient temp. [°C]:
Outdoors
Wind velocity [m/s]:
Given heat transfer coeff. [W/m²K]:
Insulation
Uninsulated suspensions
Additional heat loss is calculated according to table A.1 in ISO 12241
Calculated results
Value
Calculated results
Needed insulation thickness
Std. insulation thickness
Project information (name, reference, person):
Orientation
Horizontal
Vertical
Dimensions
Diameter pipe (outside) [mm]:
Wall thickness (pipe) [mm]:
Emissvity bare pipe:
Media
Start temperature [°C]:
Freezing degree [%]:
Facing (outside surface)
User defined facing, emissivity:
Conditions
Indoors
Ambient temp. [°C]:
Outdoors
Wind velocity [m/s]:
Given heat transfer coeff. [W/m²K]:
Insulation
Insulation thickness (standard) [mm]:
User defined thickness [mm]:
Calculated results
Value
Project information (name, reference, person):
Type of sound trap
Circular
Rectangular
Horizontal
Vertical
Duct dimensions
Diameter [mm]:
Height [mm]:
Width [mm]:
Product (sound trap)
Insulation thickness [mm];
User defined sound trap
Insulation thickness [mm]:
Absorption factor at 125 Hz:
Absorption factor at 250 Hz:
Absorption factor at 500 Hz:
Absorption factor at 1000 Hz:
Absorption factor at 2000 Hz:
Absorption factor at 4000 Hz:
Results are only valid when:
1. Ducts are straight
2. Rectangular ducts are close to quadratic
3. The Acoustic cross section should be less than 430 mm for frequencies up to 2000 Hz
4. The Acoustic cross section should be less than 200 mm for frequencies above 2000 Hz
5. Calculated sound attenuation is valid for duct lengths up to 5 times the duct dimension
6. Resonance from the duct is not included in the calculation
Calculated sound attenuation
Nettleseren kan ikke vise grafer
Calculated results
Value
Project information (name, reference, person):
Select calculation type:
Pipe
Circular duct
Rectangular duct
Internally insulated duct
Surface
Int. insulated surface
Orientation
Horizontal
Vertical
Dimensions
Pipe diameter [mm]:
Height duct [mm]:
Width duct [mm]:
Uninsulated emissivity:
Conditions
Indoors
Ambient temp. [°C]:
Temp. media [°C]:
Outdoors
Wind velocity [m/s]:
Airflow [m³/h]
Airflow [l/s]
Airflow [m/s]
Given heat transfer coeff. [W/m²K]:
Insulations
Economical data
Energy cost pr kWh:
Operating hours [h/year]:
CO2-emission [g/kWh]:
Depreciation time [yrs]:
Energy inflation rate [%]:
Discount rate [%]:
Currency:
Insulation
Insulation thickness (standard) [mm]:
User defined thickness [mm]:
Total cost pr meter:
Facing (outside surface)
User defined facing, emissivity:
Insulation/cost
CO2-emission
U-value
Heat loss
Ext. heat transfer coeff.
Insulation/cost
Pay-back time
Annual energy cost
Annual inv. cost
Total cost