Heat and Human ComfortHeatPrinciples of Heat TransferMethods of Heat TransferMeasuring Heat QuantitySensible versus Latent HeatRadiant HeatExamples of Heat SourcesHeat Generated by PeopleSurrounding Air ConditionsFactors Affecting Human ComfortNext TimeHeat and Human ComfortHVACCNST 305 Environmental Systems 1Dr. Berryman5b HVAC Introduction, Human Comfort4.39 Building Codes and Standards (3 hr)HeatSimple molecular motion • • Heat ExchangePrinciples of Heat Transfer Methods of Heat Transferhotwaterhotwatercool aircool airwarm airwarm air60°F60°F61°F61°F15°C15°C16°C16°C1 Btu1 Btu1 kcal1 kcal[4.19 kJ][4.19 kJ]1 lb1 lbwaterwater1 kg1 kgwaterwaterMeasuring Heat QuantitySensible versus Latent Heat60°F60°F[15.6°C][15.6°C]212°F212°F[100°C][100°C]212°F212°F[100°C][100°C]212°F212°F[100°C][100°C]sensible heatsensible heatlatent heatlatent heatRadiant HeatInfrared radiation • • •Examples of Heat SourcesComputerLight fixturesCoffee potSunPeopleHeat Generated by PeopleSurrounding Air ConditionsWhat makes the body feel comfortable?Factors Affecting Human ComfortNext TimeThe Study of Air/Water MixturesReading AssignmentChapter 2
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