Lesson 1Fundamentals of heat transfer fi HVAC loads: sensible vs latent, conduction, convection, radiation, an' solar gainsDis section reviews heat transfer fundamentals fi HVAC loads, distinguishin' sensible an' latent heat, an' describin' conduction, convection, radiation, an' solar gains as dem apply to buildin' envelopes an' internal sources.
Sensible versus latent heat definitionsConduction through buildin' assembliesConvection at interior an' exterior surfacesLongwave an' shortwave radiation effectsSolar gains an' dem interaction wid loadsLesson 2Solar heat gain calculations: orientation, shadin' factors, glass properties, an' use of solar heat gain coefficientsDis section covers how solar gains enter through glazin', how orientation an' shadin' modify incident radiation, an' how glass properties an' SHGC values are applied fi estimate hourly solar coolin' loads.
Solar geometry an' surface orientationShadin' devices an' shadin' coefficientsGlass types, coatings, an' visible transmittanceUsin' SHGC an' area fi find solar gainsTime-of-day an' seasonal solar variationsLesson 3Presentin' load calculation worksheets: unit conversions, consistent units (IP), an' step-by-step example structureDis section describes how fi organize an' present load worksheets, maintain consistent IP units, perform key unit conversions, an' structure step-by-step examples so dat assumptions an' intermediate results are traceable.
Standard worksheet layout an' sectionsConsistent IP units an' common pitfallsKey unit conversions fi load workDocumentin' assumptions an' inputsStep-by-step example presentationLesson 4Equipment an' plug load calculations: inventoryin', duty cycles, diversity factors, an' internal heat distributionDis section explains how fi estimate equipment an' plug loads from connected power, duty cycles, an' diversity, an' how internal heat is split between sensible an' latent components an' distributed among zones.
Identifyin' equipment an' plug inventoriesConnected load, demand, an' duty cycleDiversity factors fi receptacle loadsSensible versus latent equipment gainsZonal distribution of internal equipment heatLesson 5Ventilation an' latent loads: outdoor air sensible an' latent contributions, usin' humidity ratios an' psychrometric principlesDis section focuses on outdoor air ventilation loads, usin' humidity ratios an' psychrometric properties fi separate sensible an' latent components, an' shows how code-required airflow translates inna coolin' an' dehumidification loads.
Ventilation airflow from codes an' standardsOutdoor an' indoor design conditionsHumidity ratio, enthalpy, an' psych chartsSensible versus latent ventilation loadsPreconditionin' an' energy recovery impactsLesson 6Infiltration an' unbalanced ventilation: estimatin' infiltration rates, impact on latent an' sensible loadsDis section explains how uncontrolled air leakage an' unbalanced ventilation affect sensible an' latent loads, methods fi estimate infiltration rates, an' how stack, wind, an' mechanical effects are reflected inna load calculations.
Drivers of infiltration: wind an' stackACH, CFM, an' envelope leakage metricsEstimatin' infiltration fi load designSensible an' latent load from infiltrationUnbalanced ventilation an' pressure effectsLesson 7Latent load estimation an' psychrometrics: dew point, specific humidity, calculation of latent heat loads from people, ventilation, an' processesDis section develops latent load estimation usin' psychrometrics, coverin' dew point, specific humidity, an' how fi compute latent heat from people, ventilation air, an' moisture-generatin' processes inna buildings.
Dew point, humidity ratio, an' RHPsychrometric chart navigation basicsLatent gains from occupantsLatent loads from ventilation airProcess moisture sources an' dehumidificationLesson 8Load calculation approaches: manual coolin' load calculations, heat balance overview, an' simplified methodsDis section introduces major coolin' an' heatin' load calculation approaches, includin' detailed manual methods, heat balance concepts, an' simplified rules of thumb, highlightin' accuracy, inputs, an' typical use cases.
Design objectives an' required accuracyManual component-by-component methodsHeat balance an' radiant-time-series ideasSimplified an' rule-of-thumb approachesComparin' methods an' selectin' an approachLesson 9People load calculations: sensible an' latent contributions per occupant an' per area, usin' ASHRAE tablesDis section details how fi quantify sensible an' latent heat from occupants usin' ASHRAE tables, considerin' activity level, clothin', an' occupancy schedules, an' how fi convert people loads to area-based design values.
Metabolic rates an' activity categoriesASHRAE tables fi sensible an' latent gainsOccupancy density an' diversity factorsSchedules an' peak occupancy selectionConvertin' per-person to per-area loadsLesson 10Combinin' loads an' safety factors: coincident load summation, diversity, temperature delta selections, an' peak load extrapolation from one floor to whole buildin'Dis section shows how fi combine component loads inna system design loads, apply diversity an' safety factors, select indoor an' outdoor design temperature deltas, an' extrapolate floor-level results to whole-buildin' peaks.
Coincident versus noncoincident load summationApplyin' diversity to internal gainsChoosin' indoor an' outdoor design deltasSafety factors an' avoidin' oversizin'Scalin' floor loads to whole buildingsLesson 11Envelope heat gains: conduction through walls, roof, windows usin' UA method an' solar heat gain through glazin'Dis section covers envelope heat gains through walls, roofs, an' windows usin' de UA method, includin' temperature differences, solar-exposed surfaces, an' how conduction an' solar gains combine inna glazin' assemblies.
U-values, R-values, an' UA calculationsWall an' roof conduction wid design deltasWindow conduction an' frame effectsSolar gains through glazin' systemsThermal mass an' time lag considerationsLesson 12Lightin' load calculations: convertin' lightin' power density to sensible heat, diversity, an' control impactsDis section explains how fi convert lightin' power density an' fixture data inna sensible heat gains, apply diversity an' control strategies, an' account fi schedules, daylight dimmin', an' ballast or driver losses.
Lightin' power density an' fixture dataConvertin' watts to sensible heat gainsLightin' schedules an' diversity factorsControls: occupancy an' daylight dimmin'Ballast, driver, an' luminaire losses
