HVAC Calculator
The application allows performing various calculations for HVAC systems engineering.
The application is a complex, unique by its size and content, comprising 85 calculations, vital for any HVAC engineer.
Now all the most up-to-date calculations are readily available for you, perform calculations anywhere: at a construction site, in negotiating, in a transport, office, auditorium etc.
Pro version contains 85 types of calculations, whereas Lite has got 38.
You can select Imperial or Metric units in the application.
System requirements:
- iOS 9 or later.
- Compatible with iPhone.
- Languages English, French, German, Portuguese, Russian, Spanish.
License:
- Paid - Pro version, contains full set of functions.
- Free - Lite version, contains limited set of functions.
- Use the application at any place.
- Carry out single and complex calculations thanks to vast range of calculations.
- Do the quick calculation selection by means of navigation at calculations sections.
- Use the memorizing tools for quick save and calculation results applying.
- Mark the calculations as Favorite.
- Use suitable system of units: imperial or metric.
- Use the math calculator for additional calculations.
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application functional capability table
| Function | Lite | Pro |
| Aerodynamics | ||
| Mass air flow rate | – | ● |
| Volume air flow rate | – | ● |
| Selection of the duct diameter | – | ● |
| Selection of the duct dimensions | – | ● |
| Circular orifice diameter | – | ● |
| Circular orifice dimensions | – | ● |
| Air velocity in terms of area | – | ● |
| Air flow in terms of area | – | ● |
| Air velocity in terms of duct diameter | ● | ● |
| Air velocity in terms of duct dimensions | ● | ● |
| Air flow in terms of duct diameter | ● | ● |
| Air flow in terms of duct dimensions | ● | ● |
| Friction pressure drop in the circular duct | ● | ● |
| Friction pressure drop in the rectangular duct | ● | ● |
| Pressure drop in terms of local losses | ● | ● |
| Hydraulics | ||
| Fluid flow in terms of capacity. Water | – | ● |
| Fluid flow in terms of capacity. Glycol | – | ● |
| Capacity in terms of pipeline diameter. Glycol | – | ● |
| Capacity in terms of fluid flow. Water | – | ● |
| Capacity in terms of fluid flow. Glycol | – | ● |
| Selection of the pipeline diameter in terms of fluid flow | – | ● |
| Selection of the pipeline diameter in terms of capacity. Water | – | ● |
| Selection of the pipeline diameter in terms of capacity. Glycol | – | ● |
| Pipeline frictional pressure drop. Glycol | – | ● |
| Pressure drop in terms of local losses. Glycol | – | ● |
| Throttling orifice diameter. Water | – | ● |
| Valve Kv | – | ● |
| System volume change. Water | – | ● |
| System volume change. Glycol | – | ● |
| Pipeline thermal extension | – | ● |
| Fluid velocity | ● | ● |
| Fluid flow in terms of pipeline diameter | ● | ● |
| Capacity in terms of pipeline diameter. Water | ● | ● |
| Pipeline frictional pressure drop. Water | ● | ● |
| Pressure drop in terms of local losses. Water | ● | ● |
| Valve pressure drop | ● | ● |
| Heating | ||
| Two materials guarding heat transmission resistance | – | ● |
| Internal face temperature of the guarding | ● | ● |
| Single material guarding heat transmission resistance | ● | ● |
| Ventilation | ||
| Air cooling capacity by coil temperature | – | ● |
| Air cooling capacity by relative humidity | – | ● |
| Air cooling capacity by enthalpy | – | ● |
| Fan electric motor capacity | – | ● |
| Available pressure for natural ventilation | – | ● |
| Water flow for air steam humidification | – | ● |
| Capacity for air steam humidification | – | ● |
| Capacity for air heating | ● | ● |
| Air flow in terms of heat emission | ● | ● |
| Air flow in terms of humidity exudation | ● | ● |
| Air properties | ||
| Air mixture temperature | – | ● |
| Air mixture moisture content | – | ● |
| Air mixture enthalpy | – | ● |
| Air mixture relative humidity | – | ● |
| Air density | – | ● |
| Air specific heat | – | ● |
| Steam saturation pressure in terms of temperature | – | ● |
| Steam saturation pressure in terms of moisture content | – | ● |
| Barometric pressure | – | ● |
| Partial pressure | – | ● |
| Dewpoint temperature | – | ● |
| Wet bulb temperature by relative humidity | – | ● |
| Wet bulb temperature by enthalpy | – | ● |
| Moisture content in the air in terms of enthalpy | ● | ● |
| Moisture content in the air in terms of relative humidity | ● | ● |
| Air enthalpy in terms of moisture content | ● | ● |
| Air enthalpy in terms of relative humidity | ● | ● |
| Air relative humidity in terms of moisture content | ● | ● |
| Air relative humidity in terms of enthalpy | ● | ● |
| Fluid properties | ||
| Freezing point. Glycol | ● | ● |
| Density. Water | ● | ● |
| Density. Glycol | ● | ● |
| Specific heat. Water | ● | ● |
| Specific heat. Glycol | ● | ● |
| Kinematic viscosity. Water | ● | ● |
| Kinematic viscosity. Glycol | ● | ● |
| Condensation temperature. Refrigerant | ● | ● |
| Boiling temperature. Refrigerant | ● | ● |
| Condensation pressure. Refrigerant | ● | ● |
| Boiling pressure. Refrigerant | ● | ● |
| Engineering geometry | ||
| Surface area of the circular section insulation | – | ● |
| Surface area of the rectangular section insulation | – | ● |
| Equivalent diameter | – | ● |
| Steel pipeline weight | ● | ● |
| Surface area of the circular duct | ● | ● |
| Surface area of the rectangular duct | ● | ● |
