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HVAC Design Case Studies

3 real-world HVAC engineering case studies covering residential, commercial, and apartment building types across ASHRAE, GB 50736, and SHASE standards. Each case walks through the complete design workflow using our free calculators.

US Residential (Chicago)

200m² two-story single-family home in Climate Zone 5A. Complete heating load calculation (ASHRAE method), duct sizing (SMACNA), and radiator selection (EN 442). Outdoor design -18°C, indoor 20°C.

Calculators used: Heating Load, Duct Sizing, Radiator Sizing, Boiler Size

CN Office Complex (Shanghai)

2,000m² Class-A office building in Shanghai (Hot Summer Cold Winter zone). Heating and cooling load per GB 50736, pipe flow and pump head for chilled water system, plus pipe insulation design.

Calculators used: Cooling Load, Pipe Flow, Pump Head, Pipe Insulation

JP Apartment (Tokyo)

80m² apartment renovation in central Tokyo. Heating load per SHASE-S 101, expansion tank sizing for closed-loop system, and HVAC unit conversions between SI and local Japanese units.

Calculators used: Heating Load, Expansion Tank, Unit Converter