Heat and Human Comfort HVAC CNST 305 Environmental Systems 1 Dr. Berryman 5bHVAC Introduction, Human Comfort4.39 Building Codes and Standards (3 hr)

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Presentation transcript:

Heat and Human Comfort HVAC CNST 305 Environmental Systems 1 Dr. Berryman 5bHVAC Introduction, Human Comfort4.39 Building Codes and Standards (3 hr)

Heat Simple molecular motion Heat Exchange

Principles of Heat Transfer

Methods of Heat Transfer hot water hot water cool air warm air

60°F 61°F 15°C 16°C 1 Btu 1 kcal [4.19 kJ] 1 lb water 1 kg water Measuring Heat Quantity

Sensible versus Latent Heat 60°F[15.6°C] 212°F[100°C] 212°F[100°C] 212°F[100°C] sensible heat latent heat

Radiant Heat Infrared radiation

Examples of Heat Sources Computer Light fixtures Coffee pot Sun People

Heat Generated by People

Surrounding Air Conditions What makes the body feel comfortable?

Factors Affecting Human Comfort

Next Time The Study of Air/Water Mixtures Reading Assignment Chapter 2 (Toa)

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