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Typical Ductwork and / or Plant Equipment carrying Warmed or Chilled Air

Installation Criteria

Environment Condition

(1)  Inside Room / External Air Condition,

θm at 28~35 ℃, 80~95% RH,

Still Air and /or Wind Speed of 1m/s

(2) Dew Point, θd=24.4~34.3℃

Material Technical Factor

(1) Thermal Conductivity, λ<0.037W/m.K (at 20℃ mean Temp.)

(2) Surface Coefficient, h=10 Still Air and /or

=13.5 Wind Speed of 1m/s (Black Matt Surface)

(3) Carrying Air Temperature, θ1

Other Factors Considered

Remarks : The Environment Conditions Extracted From official website : www.eld.emsd.gov.hk of EMSD