Posts by Miles Ryan
Improving HVAC Operations – Part II: Controlling Temperature, Managing Humidity
Abstract: Maintaining a solid understanding of how common HVAC systems are controlled is essential to effectively troubleshooting them. It is also necessary for optimizing the energy performance of such systems. Improving the knowledge base of HVAC control sequences throughout the Department of Defense, for these purposes, was the driving force behind the resurrection of the…
Read MoreImproving HVAC Operations – Part I: Managing Swing Season Cooling Requirements
Abstract: Maintaining a solid understanding of how common HVAC systems are controlled is essential to effectively troubleshooting them. It is also necessary for optimizing the energy performance of such systems. Improving the knowledge base of HVAC control sequences throughout the Department of Defense, for these purposes, was the driving force behind the resurrection of the…
Read MoreUnderstanding Cascade Control and Its Applications For HVAC
Miles Ryan, a P.E. at QSEng authored this ASHRAE article published in February 2021. Most readers familiar with the operation of HVAC systems are aware of the term closed-loop control, oftentimes referred to as just a control loop, closed-loop, or feedback loop. Additionally, many will describe them as PID loops, short for Proportional-Integral-Derivative loops, although…
Read MoreAddressing PRVs in Domestic Hot Water Recirculating Systems
Synopsis There are numerous parallels and striking differences between domestic hot water recirculating systems, and the hydronic systems used to heat and cool facilities. This paper will explore those parallels and differences to highlight the common pitfalls seen in the design and operation of domestic hot water recirculating systems which include the presence of a…
Read MoreBuilding Commissioning Association Annual Conference
Building Commissioning Association (BCxA) Annual Conference Chicagoland, IL September 25-27, 2019 Miles Ryan presented on the topic of Common Pitfalls in High-Rise Domestic Hot Water Recirculating Systems. Additionally, he authored a supporting conference paper entitled Addressing PRVs in Domestic Hot Water Recirculating Systems. His presentation and paper identified common mistakes made in the design, construction…
Read MoreThe U.S. Air Force’s Approach to HVAC Education: Developing Field Competence
Miles Ryan, a P.E. at QSEng co-authored this ASHRAE published article about his experience in The U.S. Air Force. An engineer who is as comfortable in the field as they are in the office is someone you want on your team, especially if your team operates and maintains facilities. Developing this competence can take years…
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