uwg.UCMDef module¶
Class for Urban Canopy Model.
- class uwg.UCMDef.UCMDef(bldHeight, bldDensity, verToHor, treeCoverage, sensAnthrop, latAnthrop, initialTemp, initialHum, initialWind, parameter, r_glaze, SHGC, alb_wall, road)[source]¶
Bases:
objectDefinition of Urban Canopy - Building Energy Model Class
- Parameters:
bldHeight – Average building height (m).
bldDensity – Horizontal building density (footprint/total_area).
verToHor – Vertical-to-horizontal urban area ratio (facade area/urban area).
treeCoverage – Horizontal tree density (footprint).
sensAnthrop – Sensible anthropogenic heat (other than from buildings) (W m-2).
latAnthrop – Latent anthropogenic heat (other than from buildings) (W m-2).
initialTemp – Canyon air temperature (db) (K).
initialHum – Canyon specific humidity (kg kg-1).
initialWind – Urban canyon wind velocity (m s-1).
parameter – Param object.
r_glaze – Area-weighted average of glazing ratio from urban building stock.
SHGC – Area-weighted average of SHGC from urban building stock.
alb_wall – Area-weighted average of wall albedo from urban building stock.
road – Road element class (moved from BEM).
- Properties
road – Road element class (moved from BEM)
# Urban Canyon Parameters
bldHeight – average building height (m)
bldDensity – horizontal building density (footprint)
verToHor – vertical-to-horizontal urban area ratio (facade area/urban area)
treeCoverage – horizontal tree density (footprint)
sensAnthrop – sensible anthropogenic heat (other than from buildings) (W m-2)
latAnthrop – latent anthropogenic heat (other than from buildings) (W m-2)
z0u – urban roughness length (m)
l_disp – urban displacement length (m)
roadShad – shadowing of roads
canWidth – canyon width (m)
bldWidth – bld width (m)
canAspect – canyon aspect ratio
roadConf – road-sky configuration factors (sky view factor)
alb_wall – average wall albedo
wallConf – wall-sky configuration factors (sky view factor)
VFwallroad – wall-road view factor
VFroadwall – road-wall view factor
facArea – facade area (m2)
roadArea – road area (m2)
roofArea – roof area (m2) (also building area)
facAbsor – average facade absortivity
roadAbsor – average road absortivity
h_mix – waste heat mix into canyon ratio
# Urban Canyon Variables
canTemp – canyon air temperature (db) (K)
Tdp – dew point temperature
Twb – wetbulb temperature
canHum – canyon specific humidity (kg kg-1)
canRHum – canyon relative humidity ()
canWind – urban canyon wind velocity (m s-1)
turbU – canyon turbulent velocities (m s-1)
turbV – canyon turbulent velocities (m s-1)
turbW – canyon turbulent velocities (m s-1)
ublTemp – urban boundary layer temperature (K)
ublTempdx – urban boundary layer temperature discretization (K)
ublWind – urban boundary layer wind velocity (m s-1)
ustar – friction velocity (m s-1)
ustarMod – modified friction velocity (m s-1)
uExch – exchange velocity (m s-1)
treeLatHeat – latent heat from trees (W m-2)
treeSensHeat – sensible heat from trees (W m-2)
sensHeat – urban sensible heat (W m-2)
latHeat – urban latent heat (W m-2)
windProf – urban wind profile
Q_roof – sensible heat flux from building roof (convective)
Q_wall – sensible heat flux from building wall (convective)
Q_window – sensible heat flux from building window (via U-factor)
Q_road – sensible heat flux from road (convective)
Q_hvac – sensible heat flux from HVAC waste
Q_traffic – sensible heat flux from traffic (net)
Q_ubl – Convective heat exchange with UBL layer
Q_vent – Convective heat exchange from ventilation/infiltration
SolRecWall – Solar received by wall
SolRecRoof – Solar received by roof
SolRecRoad – Solar received by road
roadTemp – average road temperature (K)
roofTemp – average roof temperature (K)
wallTemp – average wall temperature (K)
ElecTotal – Total Electricity consumption of urban area
GasTotal – Total Gas consumption of the urban area