Randy Schrecengost, PE, CEM, Stanley Consultants, Austin, Texas
Randy Schrecengost is the Stanley Consultants Austin mechanical department manager and is a principal mechanical engineer. He is a member of the Consulting-Specifying Engineer editorial advisory board.
Articles
How to choose the right HVAC System: Code and efficiency considerations
By completing system analyses, and making appropriate decisions and selections, an optimum HVAC system can be recommended for any building type which will operate at or near peak efficiency.
Case study: HVAC system conversion includes remote monitoring
A government facility’s HVAC system was overhauled to make it more efficient and cost-effective.
Case study: Flexible, reliable HVAC system
A quiet, efficient, and flexible HVAC system replaced an older one in this government office building.
AHUs in HVAC system design configurations
In this third portion, review guidelines, standards, and basic concepts for designing HVAC projects using AHUs.
AHU types, components, and configurations
In this second portion, engineers will understand the component makeup of air handling units (AHUs) and their inclusion within various HVAC systems.
Why are AHUs important?
Providing energy-efficient and comfortable HVAC systems is an important task for HVAC engineers and designers. In this first part, learn about the importance of air handling units (AHUs) within building HVAC systems.
Using performance-based design for DOAS
Performance-based design influences the specification of dedicated outside air systems (DOAS) products and systems.
Automation and controls for HVAC systems
Here are some best practices for designing building automation systems (BAS) and controls for HVAC systems.
Sizing, selecting pumps and circulators
By making correct pump and piping selections, a hydronic system can operate at or near peak efficiency, avoiding cavitation and vibration. Here’s a look at relevant codes and best practices.
System controls for pumps and circulators
Correctly setting controls for pumps and circulators is key to achieving energy savings.