2021
DOI: 10.1016/j.buildenv.2021.107772
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A simulation-based assessment of technologies to reduce heat emissions from buildings

Abstract: Heat emissions from buildings are part of anthropogenic heat leading to urban overheating. This paper aims to assess how technologies (i.e., energy conservation measures -ECMs), used to decrease energy use, may also reduce heat emissions from buildings. This study employs the physics-based engine EnergyPlus to simulate the main components of heat emissions from buildings to ambient air: envelope, zone, and systems. Hourly simulations are run for IECC single-and multi-family reference models with three represen… Show more

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Cited by 22 publications
(4 citation statements)
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“…In urban areas, Q S is the net uptake or release of energy from urban volume. This term is an important determinant of urban climate and is regarded as a key process in the genesis of urban heat island (Goward, 1981). The change in building Q S is modified when heat is released by human activities but the timing of the external emissions are impacted by the building fabric characteristics and the conduction process.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…In urban areas, Q S is the net uptake or release of energy from urban volume. This term is an important determinant of urban climate and is regarded as a key process in the genesis of urban heat island (Goward, 1981). The change in building Q S is modified when heat is released by human activities but the timing of the external emissions are impacted by the building fabric characteristics and the conduction process.…”
Section: Introductionmentioning
confidence: 99%
“…The Q F,B differs from building heat emission (BHE) (e.g. Hong et al, 2020;Ferrando et al, 2021) as the latter is the total heat flux released from buildings to the ambient air…”
Section: Introductionmentioning
confidence: 99%
“…This typology of UBEMs allows the modelling of numerous buildings together with a physics-based approach that usually can quantify the building energy use to hourly and even sub-hourly values, being based on multizone dynamic thermal simulation models or reduced-order 2 resistor-capacitor models [4]. At the single-building scale, it is widely recognized that occupants play a fundamental role in the simulated energy outputs [5,6] and several approaches are present in the literature to model different aspects related to occupants, also considering their intrinsic variability and dynamic [7]. Conversely, in UBEMs, buildings are usually modelled via archetypes (standard fully-characterized buildings models) [8] which define the building by setting geometries, systems, constructions, and Occupant Behaviour (OB) mainly via daily profiles (usually called schedules).…”
Section: Introductionmentioning
confidence: 99%
“…On the other hand, anthropogenic heat released by human activities (e.g., human metabolism, building energy consumptions, and vehicle traffic emissions) and solar radiation are two major sources of urban heat [32]. Therefore, the restriction of production and living caused by lockdown policy also had a positive impact on the urban thermal environment.…”
Section: Introductionmentioning
confidence: 99%