Version 4 of the Bell & Gossett System Syzer® program for PC computers is available. It is an update of a tool for calculating flow rates and pressure drops in HVAC piping systems. The program ...

In this article, Environics describes how to calculate mass flow conversion factors in order to accurately calibrate gas standards.

Before calculating flow rates, ideal geometric shapes are chosen to represent the noncircular transverse sections. The Hagen-Poiseuille equation used with hydraulic diameter underestimates the volume ...

Learn about burn rate, including its definition, types (gross and net), formulas, and real-life examples to evaluate a ...

The calculation combines feed-gas data and tail-gas composition to calculate flow rates for combustion air and tail-gas streams.

Net present value (NPV) is the difference between the present value of cash inflows and the present value of cash outflows over a period of time.

Calculating the IRR for a project with an initial outlay and single cash flow is very easy to do. It's also very practical for measuring the returns.