HVAC Design Engineering Basic Course

Coming into this course, I had some prior exposure to the subject, mostly from reviewing HVAC submittals and coordinating with MEP teams. The content does a decent job walking through fundamentals like heating and cooling load calculations and basic psychrometrics, which are still very relevant even if most firms lean heavily on software today. The sections on air distribution and duct sizing were closer to how things work in practice, especially when comparing constant volume systems to VAV layouts. One challenge was following the psychrometric chart explanations at video pace. Without pausing and sketching it out, humidity control and latent vs sensible load relationships can blur together, which is an edge case that causes real problems in mixed climates and shoulder seasons. In industry, this is often glossed over until comfort complaints show up. A practical takeaway was getting a better feel for quick load estimation and airflow sanity checks before trusting tool outputs. That helps catch issues early, especially when ASHRAE 62.1 ventilation requirements start driving system size instead of temperature loads. From a system-level view, the course hints at how early HVAC decisions affect controls, energy use, and commissioning later on. I can see this being useful in long-term project work.

Coming into this course, I had some prior exposure to the subject. From a senior engineer’s lens, the material did a decent job walking through cooling and heating load calculations and basic duct sizing logic, which are often glossed over in beginner content. The sections touching on psychrometrics and sensible vs latent loads were especially relevant, since humidity control and part‑load behavior tend to cause issues in real buildings, not peak-day sizing. One challenge was reconciling the simplified examples with how things actually play out on projects. Assumptions around steady-state conditions and perfectly balanced airflows don’t always hold, particularly in retrofit work or mixed-use buildings. The course doesn’t dive deeply into edge cases like shoulder-season dehumidification or control interactions between VAV boxes and central AHUs, which are common pain points in practice. A practical takeaway was the emphasis on doing a quick sanity check on calculated loads before trusting software outputs. That habit aligns with industry practice and helps catch bad inputs early. Compared to typical consulting workflows, references to standards like ASHRAE 62.1 felt light, but that’s expected at this level. The content felt aligned with practical engineering demands.

This course turned out to be more technical than I anticipated. For a beginner track, it spent a fair amount of time on heat load calculations and basic psychrometrics, which was useful to see laid out step by step. The walk-through of sensible vs latent loads and how they drive cooling coil selection mirrors what’s done in early-stage design, even if the examples were simplified. Duct sizing and ventilation rate discussions were closer to textbook practice than what’s typically constrained by architecture and budgets in industry. One challenge was reconciling the simplified assumptions with real projects. Diversity factors, part-load operation, and humidity control during shoulder seasons weren’t deeply addressed, and those edge cases often drive redesigns later. That gap is noticeable when comparing this to how ASHRAE-based workflows are applied on commercial jobs. A practical takeaway was using the psychrometric chart as a sanity check instead of relying purely on software outputs. That habit helps catch unrealistic supply air conditions before they ripple into fan power and control issues. Overall, the content felt aligned with practical engineering demands, even if some system-level implications were only lightly touched.