The Building

A school in a hot, humid climate, 8,000 m3/h exhaust, cooled most of the year, dehumidification is the main load.

Step 1 - Duty

Supply and exhaust 8,000 m3/h, outdoor 34 C at 80 percent RH, indoor 24 C at 50 percent RH.

Step 2 - Technology

Choose a rotary enthalpy wheel: it recovers both temperature and moisture, cutting the dehumidification load.

Step 3 - Size

Target 75 percent sensible and 65 percent latent. This removes a large share of the coil's moisture load.

Step 4 - Result

Cooling and dehumidification energy drop markedly; the wheel's motor energy is small versus the saved coil load.