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Joseph Lstiburek, Ph.D., P.Eng, ASHRAE Fellow Building Science Adventures In Building Science presented by www.buildingscience.com There Is No Such Thing As A Free Thermodynamic Lunch Building Science Corporation Joseph Lstiburek 2 What is a Building? Building Science Corporation Joseph Lstiburek 3 A Building is an Environmental Separator Building Science Corporation Joseph Lstiburek 4 • Control heat flow • Control airflow • Control water vapor flow • Control rain • Control ground water • Control light and solar radiation • Control noise and vibrations • Control contaminants, environmental hazards and odors • Control insects, rodents and vermin • Control fire • Provide strength and rigidity • Be durable • Be aesthetically pleasing • Be economical Building Science Corporation Joseph Lstiburek 5 Thermodynamics Building Science Corporation Joseph Lstiburek 6 Zeroth Law – A=B and B=C therefore A=C First Law - Conservation of Energy Second Law - Entropy Third Law – Absolute Zero Building Science Corporation Joseph Lstiburek 7 2nd Law of Thermodynamics Building Science Corporation Joseph Lstiburek 8 In an isolated system, a process can occur only if it increases the total entropy of the system Rudolf Clausius Building Science Corporation Joseph Lstiburek 9 Thermodynamic Potential Building Science Corporation Joseph Lstiburek 10 ,'-."-%/*01-$%1$*23(43(5&-3% 63)$47*8)&-9'($:**VV Heat Flow Is From Warm To Cold Moisture Flow Is From Warm To Cold Moisture Flow Is From More To Less Air Flow Is From A Higher Pressure to a Lower Pressure Gravity Acts Down Building Science Corporation Joseph Lstiburek 12 Hygrothermal Analysis Building Science Corporation Joseph Lstiburek 13 Building Science Corporation Joseph Lstiburek 14 Firmness, Commodity and Delight “These are properly designed, when due regard is had to the country and climate in which they are erected. For the method of building which is suited to Egypt would be very improper in Spain, and that in use in Pontus would be absurd at Rome: so in other parts of the world a style suitable to one climate, would be very unsuitable to another” Marcus Vitruvius Pollio (c.90-20 B.C.E.) Building Science Corporation Joseph Lstiburek 15 Building Science Corporation 63)$47*8)&-9'($:****VN Building Science Corporation Joseph Lstiburek 19 Building Science Corporation Joseph Lstiburek 20 Building Science Corporation Joseph Lstiburek 21 Building Science Corporation Joseph Lstiburek 22 Building Science Corporation Joseph Lstiburek 23 Building Science Corporation Joseph Lstiburek 24 Arrhenius Equation Building Science Corporation Joseph Lstiburek 25 >3(*E#$(@*VW*[$/($$*d*U-)$ !1&-#5&-3%*E%$(/@*[3'9.$) ,'-."-%/*01-$%1$*23(43(5&-3% 63)$47*8)&-9'($:**;M Damage Functions Water Heat Ultra-violet Radiation Building Science Corporation Joseph Lstiburek 27 The Three Biggest Problems In Buildings Are Water, Water and Water… Building Science Corporation Joseph Lstiburek 28 Building Science Corporation Joseph Lstiburek 29 Building Science Corporation Joseph Lstiburek 30 Building Science Corporation Joseph Lstiburek 31 Microclimates and Materials Science Building Science Corporation Joseph Lstiburek 32 Building Science Corporation Joseph Lstiburek 33 Building Science Corporation Joseph Lstiburek 34 Building Science Corporation Joseph Lstiburek - Foundations 35 Building Science Corporation Joseph Lstiburek - Foundations 36 Environmental Loads Rain Exposure Zone Hygro-thermal Regions Interior Climate Class Building Science Corporation Joseph Lstiburek 37 Building Science Corporation Joseph Lstiburek - Foundations 38 Building Science Corporation Joseph Lstiburek - Foundations 39 Water Control Layer Air Control Layer Vapor Control Layer Thermal Control Layer Building Science Corporation Joseph Lstiburek 40 Building Science Corporation Joseph Lstiburek 41 Building Science Corporation Joseph Lstiburek 42 Building Science Corporation Joseph Lstiburek 43 Building Science Corporation Joseph Lstiburek 44 Building Science Corporation Joseph Lstiburek 45 Building Science Corporation Joseph Lstiburek 46 Building Science Corporation Joseph Lstiburek 47 Building Science Corporation Joseph Lstiburek 48 Building Science Corporation Joseph Lstiburek 49 Building Science Corporation Joseph Lstiburek 50 Window Building Science Corporation Joseph Lstiburek 51 Building Science Corporation Joseph Lstiburek 52 Building Science Corporation Joseph Lstiburek 53 Building Science Corporation Joseph Lstiburek 54 Building Science Corporation Joseph Lstiburek 55 Building Science Corporation Joseph Lstiburek 56 Building Science Corporation Joseph Lstiburek 57 Configurations of the Perfect Wall Building Science Corporation Joseph Lstiburek 58 Building Science Corporation Joseph Lstiburek 59 Building Science Corporation Joseph Lstiburek 60 Building Science Corporation Joseph Lstiburek 61 Building Science Corporation Joseph Lstiburek 62 Building Science Corporation Joseph Lstiburek 63 Commercial Enclosure: Simple Layers G 0&('1&'($ G U5-%h!-(h`543( G +%)'.5&-3% G >-%-)7 ,'-."-%/*01-$%1$*23(43(5&-3% 63)$47*8)&-9'($:**MD Building Science Corporation Joseph Lstiburek 65 Building Science Corporation Joseph Lstiburek 66 Building Science Corporation Joseph Lstiburek 67 Building Science Corporation Joseph Lstiburek 68 Building Science Corporation Joseph Lstiburek 69 Building Science Corporation Joseph Lstiburek 70 Building Science Corporation Joseph Lstiburek 71 Building Science Corporation Joseph Lstiburek 72 Building Science Corporation Joseph Lstiburek 73 Building Science Corporation Joseph Lstiburek 74 Building Science Corporation Joseph Lstiburek 75 Building Science Corporation Joseph Lstiburek 76 Building Science Corporation Joseph Lstiburek 77 Building Science Corporation Joseph Lstiburek 78 Building Science Corporation Joseph Lstiburek 79 Building Science Joseph Lstiburek 80 Building Science Corporation Joseph Lstiburek 81 Building Science Corporation Joseph Lstiburek 82 Building Science Corporation Joseph Lstiburek 83 Building Science Corporation Joseph Lstiburek 84 Building Science Corporation Joseph Lstiburek 85 Building Science Corporation Joseph Lstiburek 86 Building Science Corporation Joseph Lstiburek 87 Building Science Corporation Joseph Lstiburek 88 Building Science Corporation Joseph Lstiburek 89 Building Science Corporation Joseph Lstiburek 90 Building Science Corporation Joseph Lstiburek 91 Building Science Corporation Joseph Lstiburek 92 Building Science Corporation Joseph Lstiburek 93 Building Science 2009 Joseph Lstiburek – HVAC 94 Building Science Corporation Joseph Lstiburek 95 Building Science Corporation Joseph Lstiburek 96 Building Science Corporation Joseph Lstiburek 97 Building Science 2009 Joseph Lstiburek – HVAC 98 Building Science Corporation Joseph Lstiburek 99 Don’t Do Stupid Things Building Science Corporation Joseph Lstiburek 100 Building Science Corporation Joseph Lstiburek 101 Building Science Corporation Joseph Lstiburek 102 Building Science Corporation Joseph Lstiburek 103 Building Science Corporation Joseph Lstiburek 104 Building Science Corporation Joseph Lstiburek 105 Building Science 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