Engineering & Knowledge

Pipe Pressure Drop Calculations: Essential Equations and Guidelines

Learn how to accurately calculate pipe pressure drops using essential equations and guidelines to ensure optimal fluid flow and system efficiency.

Optimizing HVAC Systems for Data Centers: Key Considerations

Learn the key considerations for optimizing HVAC systems in data centers to ensure maximum efficiency and reliability.

Best Practices in HVAC Design

Learn the foundational principles and industry standards for creating efficient, reliable, and compliant HVAC systems.

R-Value and U-Value in HVAC

Master the concepts of R-value and U-value to accurately calculate and optimize thermal performance in HVAC systems.

Sensible, Latent, and Total Heat

Master the core concepts of sensible, latent, and total heat to accurately analyze and design efficient HVAC systems.

Water Flow Rate Calculations in HVAC

Learn how to accurately perform water flow rate calculations to ensure optimal efficiency and performance in HVAC systems.

Air-Cooled vs. Water-Cooled Chillers: Selection Criteria

Compare the pros and cons of air-cooled and water-cooled chillers to determine the best HVAC solution for your building’s specific needs.

Understanding District Heating: Efficient Energy Distribution Systems for Sustainable Urban Applications – Technical Overview, Installation, Maintenance, and Standards for HVAC-R Professionals

Explore the technical overview, installation practices, and compliance standards of district heating systems designed to optimize energy distribution for HVAC-R professionals.

Design Procedures for Cooling/Heating Systems

Learn the essential design procedures for heating and cooling systems to ensure optimal efficiency and building comfort.

Design Procedures for Cooling-Only Systems: An 8-Step Methodology

Master the essential 8-step engineering methodology for designing efficient cooling-only HVAC systems.

HVAC Duct Design: Duct Fittings Friction Loss

Duct fittings friction loss represents critical HVAC design calculations that determine pressure drops through elbows, tees, transitions, and other directional changes within ductwork systems. Professional engineers utilize

HVAC Duct Design: Dampers, Attenuators, and Coils Friction Loss

Dampers, attenuators, and coils friction loss represents specialized HVAC design calculations that determine pressure drops through control devices, sound attenuation equipment, and heat transfer coils within ductwork

HVAC Duct Design: Duct Round to Rectangular Equivalent

Round to rectangular duct equivalency represents a fundamental HVAC design calculation that enables engineers to convert between circular and rectangular ductwork while maintaining equivalent airflow characteristics and

HVAC Duct Design: Duct Friction Loss

Duct friction loss represents a fundamental HVAC design calculation that determines pressure drop through straight ductwork sections due to air friction against duct surfaces. Professional engineers utilize

HVAC Duct Design: Duct Pressure Classification

Duct pressure classification represents a fundamental HVAC design principle that establishes construction standards based on the operating static pressure within ductwork systems. Professional engineers utilize SMACNA pressure

HVAC Duct Design – Sizing Contaminant-Extraction Ducts (Smoke | Grease | Gases | Dry & Moist Dust)

ASHRAE’s Pocket Guide lists minimum conveying velocities that keep contaminants airborne while they travel through exhaust ductwork. Table 2.9 (2013 edition, Ch. 02, pp. 60

HVAC Duct Design: Commercial Kitchen Duct Sizing

Commercial kitchen duct sizing represents a specialized HVAC design discipline that addresses the unique requirements of grease-laden vapor removal, high-temperature exhaust, fire safety, and code compliance in

HVAC Duct Design: Duct Sizing by Velocity & Noise Criteria (NC)

Duct sizing by velocity and noise criteria (NC) represents a fundamental HVAC design methodology that determines appropriate duct dimensions based on maximum acceptable air velocities and noise

HVAC Duct Design: Duct Sizing by Equal Friction Method

The Equal Friction Method represents a fundamental HVAC duct sizing approach that maintains constant pressure loss per unit length throughout the main duct runs, providing a systematic

HVAC Duct Design: Duct Sizing SMACNA Recommendations

SMACNA (Sheet Metal and Air Conditioning Contractors’ National Association) duct sizing recommendations represent fundamental HVAC design methodologies for calculating appropriate duct dimensions to deliver required airflow while

Digital Tools & Resources

Belimo SelectPro – Free Download

SelectPro is a quick and simple tool for accurately sizing and selecting valves, actuators, sensors and replacement solutions for HVAC systems. Table of Contents Key

Rates Of Thermal Expansion For Common Pipe Materials

In modern HVAC, energy, and process industries, pipe material selection is not just about cost or standard practices—it’s about anticipating expansion and contraction risks driven by a dynamic climate and extreme operational temperatures. Understanding the rates of thermal expansion for common pipe

Fundamentals & Engineering