Pfd Process Flow Diagram Online Drawing

Overview

Engineering reference data for Pfd Process Flow Diagram Online Drawing in fluid mechanics.

Key Formulas

Reynolds Number

$Re = \frac{\rho v D}{\mu}$

Ratio of inertial to viscous forces — determines flow regime.

Bernoulli's Equation

$P + \frac{1}{2}\rho v^2 + \rho g h = \text{const}$

Conservation of energy for steady, inviscid, incompressible flow.

Continuity Equation

$A_1 v_1 = A_2 v_2$

Conservation of mass for incompressible flow.

Darcy-Weisbach

$\Delta P = f \frac{L}{D} \frac{\rho v^2}{2}$

Pressure drop due to friction in a pipe.

Variables

Symbol	Description	Unit
$Re$	Reynolds number	—
$\rho$	Fluid density	kg/m³
$v$	Flow velocity	m/s
$D$	Characteristic dimension	m
$\mu$	Dynamic viscosity	Pa·s
$P$	Pressure	Pa
$f$	Darcy friction factor	—

Features & Benefits for Engineers

This free online Process Flow Diagram (PFD) drawing template, integrated with Google Docs, offers several features tailored for engineering workflows:

• Real-Time Collaboration: Share and collaborate online with team members, enabling simultaneous editing and feedback directly on the diagram.
• Customization & Reusability: Select from existing standard symbols, copy and paste them into your diagram, or customize and create new components to match specific project requirements.
• Integration with Documents & Spreadsheets: Combine your PFD drawing with Google Documents and Spreadsheets to create linked functional descriptions, equipment lists, and process data tables in a unified workspace.
• Easy Sharing & Publishing: Export diagrams for local storage or publish them directly to the web, facilitating simple sharing with stakeholders or inclusion in project documentation.

This tool provides a straightforward, accessible platform for initial PFD drafting and conceptual design, particularly useful for teams needing a collaborative, cloud-based solution.

References

• Original Source