A6 – HVAC Selection – Grader’s Comments

• Everyone had good summaries on the relevant systems.
• It appears that most students believe that VAV is the "magic" system type and is good for almost every type of building. This results its constant winning in some team's matrices, which could be easily rejected under certain trivial scenarios (i.e. single-zone small building). To avoid such situation, a good approach is to try multiple cases and raise design scenarios to see if the result indeed makes sense. (2 points off for problematic logics)
• Only few teams commented on the eQUEST results. Students should at least explain or identify some of the numbers from the nice output files using your engineering judgment, not just putting them there for the sake of presentation. (3 points off for not explaining or identifying the eQUEST results.)