摘要:Building air-conditioning (cooling) is the single largest use of electricity, driving increases in summer peak electric demand in much of the United States. Increases in peak load on the utility grid lead to high electricity prices, power quality problems, grid system inefficiencies, and even...
thewatercoil.Waterflowtothecoil(chilledorhot)canbecon-alsoincorporatesself-containedregulatorsthatmaintainaconstant trolledeitherlyorautomaticallytomaintainthedesiredvolumeoftotalairdeliverytothevariousspaces,regardlessof roomconditions.adjustmentsintheairdtoroomsdowntheline. Ships10.5 Table2MinimumThicknessofSteelDucts ...
aregiveninTable9.Thethermalsensationscaledevelopedforvations,ASHRAEStandard55recommendsthatthedew-point thesestudiesiscalledtheASHRAEthermalsensationscale:temperatureofoccupiedspacesnotbelessthan36°F. +3hot +2warm +1slightlywarm 0neutral −1slightlycool −2cool −3cold TheequationsinTable9indicatethatth...
locations, climates, and the number of buildings from each site are found in Table1. This table also includes information about which buildings were used in the ASHRAE-sponsored Great Energy Predictor III (GEPIII) competition that was held on the Kaggle platform from October to December 2019 (h...
evaporatorsburiedintheground,areavailablealsobutareseldomWiththegrowthofdemandntralcoolingsystems,hydronic used.Water-sourcesystemsthatextractheatfromsurfacewater(e.g.,systemshavedeclinedinpopularityinnewconstruction,butstill lakesorrivers)orcity(tap)waresometimesusedwherelocalaccountforasignificantportionofexistingsys...
building envelope Summary Criteria based on space type One table summarizes envelope requirements per climate zone Precalculated U-factors for common construction types Computerized “building envelope trade-off” procedure ASHRAE Standard 90.1 Section 6: HVAC Section 7: Service Water Heating ASHRAE Standar...
28、ne table summarizes enveloperequirements per climate zone Precalculated U-factors forcommon construction types Computerized “buildingenvelope trade-off” procedure,2007 American Standard All rights reserved,ASHRAE Standard 90.1,Section 6:HVAC Section 7:Service Water Heating,SimplifiedApproach Option 29...
摘要:In order to reduce energy consumption while maintain high indoor air quality (LAQ, CO_2-based Demand controlled ventilation (DCV) has been investigated a lot and become trend of the future ventilation system. Among different advanced sensors, the real-time occupancy estimation (people counting...