HVAC Ductwork Design – Intermediate Level

HVAC Ductwork Design – Intermediate Level

Level: Intermediate
Format: Recorded
Language: Persian
Instructor: Erfan Haghighat
Access: Free
Certificate: Available with paid exam

HVAC air duct system schematic showing airflow paths, fittings, and ventilation components

Course Overview

This course focuses on the engineering-based design of HVAC air duct systems, bridging theoretical airflow principles with real-world design practices.

Participants will learn how to size ducts correctly, analyze pressure losses, and make informed design decisions based on comfort, noise, and energy efficiency considerations.
The course is designed for learners who already have basic HVAC knowledge and want to move toward practical, project-oriented duct design.

Course Topics

  • Fundamentals of airflow in HVAC systems
  • Air velocity limits and comfort considerations
  • Duct sizing principles (round and rectangular ducts)
  • Equivalent diameter concepts
  • Friction loss and pressure drop calculations
  • Fittings, bends, and local losses
  • Practical duct layout strategies
  • Common errors in duct design and execution

Watch the Course Videos

Certificate

Learners who choose to participate in the assessment can earn an optional professional certificate, issued by Owtana Tech, after successfully completing the required evaluations.

Certificate Options

1. Professional Certificate

  • Issued in Persian
  • Officially stamped
  • Requires passing an online multiple-choice exam
  • Maximum 3 attempts to pass the exam
  • Certificate is verifiable via the Owtana Tech website

2. Advanced Certificate (Bilingual)

  • Issued in Persian and English
  • Officially stamped and signed
  • Requires:
    • Passing the online multiple-choice exam(Maximum 3 attempts)
    • Passing a 15-minute online oral interview in English
  • Awarded to learners who demonstrate advanced understanding and communication skills
  • Certificate is verifiable via the Owtana Tech website

Video access is free. Certificates are available for learners who choose to validate their skills through assessment.

Certificate Sample