Which analysis models how heat from HVAC systems disperses into the surrounding neighborhood?

• A. TVIA
• B. Thermal Plume Modeling
• C. CIA
• D. Shadow Casting

Answer: (B)

Heat from HVAC systems disperses into the surrounding air as buoyant plumes that rise and mix with the atmosphere, with the spread shaped by wind, atmospheric stability, and urban obstacles. Thermal plume modeling specifically analyzes this buoyant dispersion, treating the HVAC discharge as a heat source and using models (like Gaussian plume approaches or CFD) to predict how heat and any contaminants spread downwind. It estimates downwind temperature increases and concentration fields, helping assess the neighborhood impact under different weather conditions. Shadow casting, by contrast, deals with whether a location is shaded by structures and has nothing to do with heat dispersion. The other terms aren’t standard methods for modeling HVAC heat plumes, so they don’t describe how heat propagates through the surrounding environment.