Building indoor model in PALM-4U: indoor climate, energy demand, and the interaction between buildings and the urban microclimate

There is a strong interaction between the urban atmospheric canopy layer and the building energy balance. The urban atmospheric conditions affect the heat transfer through exterior walls, the long-wave heat transfer between the building surfaces and the surroundings, the short-wave solar heat gains,...

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Bibliographic Details
Published in:Geoscientific Model Development 2021-06, Vol.14 (6), p.3511-3519
Main Authors: Pfafferott, Jens, Rißmann, Sascha, Sühring, Matthias, Kanani-Sühring, Farah, Maronga, Björn
Format: Article
Language:English
Subjects:
Anthropogenic factors
Atmospheric conditions
Building envelopes
Buildings
Climate
Climate change
Climate models
Cooling
Demand
Energy
Energy balance
Energy demand
Exact solutions
Fourier's equation
Heat conductivity
Heat transfer
Heat transport
Heating and cooling
Indoor environments
Microclimate
Partial differential equations
Plant cover
Radiation
Simulation
Specific heat
Strong interactions (field theory)
Temperature
Thermal environments
Urban areas
Urban environments
Urban microclimates
Ventilation
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Summary:There is a strong interaction between the urban atmospheric canopy layer and the building energy balance. The urban atmospheric conditions affect the heat transfer through exterior walls, the long-wave heat transfer between the building surfaces and the surroundings, the short-wave solar heat gains, and the heat transport by ventilation. Considering also the internal heat gains and the heat capacity of the building structure, the energy demand for heating and cooling and the indoor thermal environment can be calculated based on the urban microclimatic conditions. According to the building energy concept, the energy demand results in an (anthropogenic) waste heat; this is directly transferred to the urban environment. Furthermore, the indoor temperature is re-coupled via the building envelope to the urban environment and affects indirectly the urban microclimate with a temporally lagged and damped temperature fluctuation. We developed a holistic building model for the combined calculation of indoor climate and energy demand based on an analytic solution of Fourier's equation and implemented this model into the PALM model.
ISSN:1991-9603
1991-959X
1991-962X
1991-9603
1991-962X
DOI:10.5194/gmd-14-3511-2021