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Physics level 1


Calculating water and air flow rates Part 1


Objective(s) :

To be able to calculate transmitted thermal power by the knowledge of flow rates and temperature difference ranges of water and air.


Author(s) :

Patrick Delpech, Christian Chalvignac


Translator(s) :

Richard Pinder


Advice(s) :

The training difficulty of this lesson is A Level ( High school Diploma) to HND level (Associate’s Degree).


This E-book with the E-book “Water and air flow rate measuring – part 2” deals with the main formulas used in our professional sector.
Mastering this is essential when dealing with the design and operation of new and existing systems.
Before studying this chapter download and print the PDF exercise. Write down your answers to the exercise before checking the corrections on-line.


Training lesson requirement(s) :

“Energy and Heat”
“Power in HVAC”
“Volume and mass flow rates in HVAC”