An Integrated Microclimate-Energy Demand Simulation Method for the Assessment of Urban Districts

Mosteiro-Romero, Martín; Maiullari, D.; Esch, Marjolein Pijpers-van; Schlueter, Arno

doi:10.3389/fbuil.2020.553946

Cited by 30 publications

(11 citation statements)

References 47 publications

(50 reference statements)

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“…It is characterized by the fact that ambient temperatures in urban areas are higher than in rural areas (Martin-Vide et al, 2015). Many studies (Santamouris, 2007;Santamouris, 2014;Manoli et al, 2019;Jain et al, 2020;Mosteiro-Romero et al, 2020;Hong et al, 2021) have clearly shown that UHI can significantly affect the energy consumption of buildings in different cities around the world. During the heating season in cold and temperate climates, the heat island reduces energy consumption in urban centers compared to that in suburban areas.…”

Section: Mitigating the Urban Heat Island Phenomenonmentioning

confidence: 99%

Seawater Opportunities to Increase Heating, Ventilation, and Air Conditioning System Efficiency in Buildings and Urban Resilience

Schibuola

Tambani²,

Buggin³

2022

Front. Energy Res.

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In coastal cities, seawater heat pumps (SWHPs) can combine heat pump technology with the availability of seawater to produce the heat and the cold necessary for heating, ventilation, and air conditioning (HVAC) systems installed in buildings. In heating mode, the seawater is used as a cold source and provides the low-temperature heat needed for the operation of the machine. In cooling mode, the seawater removes the heat dissipated by the condenser of the heat pump working for air conditioning. This seawater application seems to be very promising since the temperature trend of the seawater appears to be more favorable than the alternative use of outdoor air, both in winter and in summer. In a case study in Trieste, the performance of a district heating/cooling network supplied with seawater and based on decentralized heat pumps is investigated. For this purpose, annual dynamic simulations were performed, modeling an urban area, the heat pumps, and the network. The energy efficiency evaluation shows a clear superiority of the SWHP solution compared to boilers and airsource heat pumps and thus the possibility to provide a significant contribution to the decarbonization of buildings. Moreover, the results highlight the ability of this GWHP network to reduce the urban heat island (UHI) phenomenon since the heat dissipated by the heat pumps during summer air conditioning is removed from the urban area. Therefore, SWHPs in coastal cities can be among the mitigation measures for UHI to increase outdoor comfort and heat wave resilience in urban areas.

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Section: Mitigating the Urban Heat Island Phenomenonmentioning

confidence: 99%

Seawater Opportunities to Increase Heating, Ventilation, and Air Conditioning System Efficiency in Buildings and Urban Resilience

Schibuola

Tambani²,

Buggin³

2022

Front. Energy Res.

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“…Previous papers have explored the effects of occupant modeling approaches on the demands predicted by the UBEM City Energy Analyst (CEA) [20,27]. In addition, the effects of the urban heat island on the space cooling demand were analyzed by connecting CEA to microclimate simulation ENVI-met [28,29]. The computational expense of the microclimate simulations, however, restricted the analysis to a single day.…”

Section: Goal and Scope Of This Papermentioning

confidence: 99%

“…In a previous study, the effects of urban microclimate on the space cooling demand of the area were estimated by connecting CEA to microclimate simulation ENVI-met [28]. However, the high computational expense of the ENVI-met model restricted the analysis to a single day.…”

Section: Effects Of Urban Climatementioning

confidence: 99%

“…In order to assess the effects of the urban heat island on the area's demands throughout the year, in this paper we use measured data from an outdoor temperature sensor located in a building in the district, the Maschinenlaboratorium (ML). While the weather station at the ML building does not measure relative humidity and wind speed, the use of on-site air temperature measurements provides an estimate of the effects of the urban heat island on the sensible cooling loads, which were previously found to be the main contributor to the area's cooling demands [28]. Furthermore, the microclimate simulations in the area showed the differences between individual buildings to be insignificant, especially compared to the large difference between the temperature measured at the off-site weather station and the simulated temperature in the district.…”

Section: Effects Of Urban Climatementioning

confidence: 99%

“…A full analysis of the effects of occupants and microclimate on the area's demands is out of the scope of this paper and can be found in previous publications [20,28]. In this section, these effects are briefly summarized in order to help interpret the results obtained in the supply system sizing and simulation sections.…”

Section: District Energy Demandmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Occupants and Local Air Temperatures as Sources of Stochastic Uncertainty in District Energy System Modeling

Mosteiro-Romero

Schlueter

2021

Energies

Self Cite

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Input uncertainty is one of the major obstacles urban building energy models (UBEM) must tackle. The aim of this paper was to quantify the effects of two of the main sources of stochastic uncertainty, namely building occupants and urban microclimate, on electrical and thermal supply system sizing at the district scale. In order to analyze the effects of the former, three different methods of occupant modeling were implemented in a UBEM. The effects of the urban heat island on system sizing were studied through the use of measured temperature data from a weather station in the case study district compared to measured data from a national weather station. The methods developed were used to assess the sizing and costs of centralized and decentralized technologies for a case study in central Zurich, Switzerland. The choice of occupant modeling approach was found to affect the district’s total annualized costs for space heating and cooling by ±5%, whereas for the costs of electricity the variation was ±8%. Regarding outdoor temperature, the effects on the heating demands proved be negligible, however the costs of the cooling alternatives were found to vary by about 4% at the district scale due to the effect of urban climate, for individual buildings this deviation was as high as 40%.

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How Urban Morphology Affects Energy Consumption and Building Energy Loads? Strategies Based on Urban Ventilation

Aboria,

Eleinen,

El-Mowafy

et al. 2024

Earth and Environmental Sciences Library

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An Integrated Microclimate-Energy Demand Simulation Method for the Assessment of Urban Districts

Cited by 30 publications

References 47 publications

Seawater Opportunities to Increase Heating, Ventilation, and Air Conditioning System Efficiency in Buildings and Urban Resilience

Seawater Opportunities to Increase Heating, Ventilation, and Air Conditioning System Efficiency in Buildings and Urban Resilience

Effects of Occupants and Local Air Temperatures as Sources of Stochastic Uncertainty in District Energy System Modeling

How Urban Morphology Affects Energy Consumption and Building Energy Loads? Strategies Based on Urban Ventilation

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