BUILDING ENGINEERING CALCULATORS
Free HVAC, ductwork and hydronic sizing tools
Soft Études provides practical preliminary sizing calculators. The English beta starts with six technically reviewed HVAC and hydronic tools.
Hydraulic separator and heating manifold
Preliminary sizing of a hydraulic separator, heating manifold, primary and secondary flow rates, pipe connections and main dimensions.
Open calculatorExpansion vessel for heating and chilled water
Estimate the minimum expansion vessel capacity, expansion volume, operating pressures and a standard vessel size.
Open calculatorHeating water flow rate and pipe diameter
Calculate heating water flow rate, theoretical diameter, suggested pipe size and actual velocity.
Open calculatorCircular and rectangular duct sizing
Calculate a circular duct diameter, an equivalent rectangular size and an indicative insulation surface.
Open calculatorAirflow in circular and rectangular ducts
Calculate airflow from duct dimensions and air velocity, and compare circular and rectangular sections.
Open calculatorAir duct pressure loss
Calculate pressure losses by duct section, including linear, fixed and fitting losses.
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