Present and Future Energy Consumption of Buildings: Challenges and Opportunities towards Decarbonisation

e-Prime - Advances in Electrical Engineering Electronics and Energy, Год журнала: 2021, Номер unknown, С. 100002 - 100002

Опубликована: Окт. 1, 2021

The present article aims to and discuss the energy environmental reality in building sector critically investigate future pathways towards its decarbonisation. current economic employment characteristics as well energy, environmental, climate social impact of are analysed. main challenges related overpopulation, change, urbanisation, consumption, material use poverty explored evaluated. recent technological developments their potential is assessed. drivers determining consumption examined expected evolution Representative scenarios on selectively presented. proposed decarbonisation presented advantages problems depicted.

Язык: Английский

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A high-resolution monitoring approach of canopy urban heat island using a random forest model and multi-platform observations

Atmospheric measurement techniques, Год журнала: 2022, Номер 15(3), С. 735 - 756

Опубликована: Фев. 9, 2022

Abstract. Due to rapid urbanization and intense human activities, the urban heat island (UHI) effect has become a more concerning climatic environmental issue. A high-spatial-resolution canopy UHI monitoring method would help better understand thermal environment. Taking city of Nanjing in China as an example, we propose for evaluating intensity (CUHII) at high resolution by using remote sensing data machine learning with random forest (RF) model. Firstly, observed parameters, e.g., surface albedo, land use/land cover, impervious surface, anthropogenic flux (AHF), around densely distributed meteorological stations were extracted from satellite images. These parameters used independent variables construct RF model predicting air temperature. The correlation coefficient between predicted temperature test set was 0.73, average root-mean-square error 0.72 ∘C. Then, spatial distribution CUHII evaluated 30 m based on output We found that wind speed negatively correlated CUHII, direction strongly offset direction. reduced distance center, due decreasing proportion built-up areas AHF same framework developed real-time assessment temporal (30 1 h) provides scientific support studying changes causes well pattern environments.

Язык: Английский

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A systematic review of urban heat island and heat waves research (1991–2022)

Climate Risk Management, Год журнала: 2024, Номер 44, С. 100603 - 100603

Опубликована: Янв. 1, 2024

Urban Heat Island (UHI) and Waves (HWs) are very important research topics as they have a strong impact on society their synergies not enough understood. Urbanisation global warming dynamic processes that amplify the UHI intensity HWs, well synergies. In this context, it is surprise to see number of publications tackling linkages between HWs has constantly increased in last decades. The development new instruments technologies allowed for consistent improvements temporal spatial resolution data boosted both monitoring analysis UHI-HW. use satellite remote sensing was limited at beginning analysed period become common practice decade. Last, but least, interdisciplinary approaches, including physical, social, economic aspects more frequent support integrated urban areas. Such changes captured review than 400 titles, covering 1991–2022, aiming foster further emergent climate change risks scales contextualise future planning. This provides comprehensive, accessible structured overview UHI-HW topic better understanding gaps be addressed by research.

Язык: Английский

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Urban Heat Island and Its Interaction with Heatwaves: A Review of Studies on Mesoscale

Sustainability, Год журнала: 2021, Номер 13(19), С. 10923 - 10923

Опубликована: Сен. 30, 2021

With rapid urbanization, population growth and anthropogenic activities, an increasing number of major cities across the globe are facing severe urban heat islands (UHI). UHI can cause complex impacts on environment human health, it may bring more effects under heatwave (HW) conditions. In this paper, a holistic review is conducted to articulate findings synergies between HW corresponding mitigation measures proposed by research community. It worth pointing out that most studies show areas vulnerable than rural during HWs, but opposite also observed in some studies. Changes energy budget drivers discussed compared explain such discrepancies. Recent indicate albedo, vegetation fraction irrigation lower temperature HWs. Research gaps topic necessitate concerning developing countries. Moreover, multidisciplinary considering factors as UHI, HW, comfort, pollution dispersion efficacy should be provide accurate explicit guidance planners policymakers.

Язык: Английский

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Influences of wind speed, sky conditions, land use and land cover characteristics on the magnitude of the urban heat island in Seoul: An exploratory analysis

Sustainable Cities and Society, Год журнала: 2021, Номер 71, С. 102953 - 102953

Опубликована: Апрель 22, 2021

Язык: Английский

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Empirical evidence on the impact of urban overheating on building cooling and heating energy consumption

iScience, Год журнала: 2021, Номер 24(5), С. 102495 - 102495

Опубликована: Май 1, 2021

A primary contributor to urban overheating is the heat island (UHI) formed due increased urbanization. The adverse effects of UHI on building energy use are substantial and well documented. However, such typically demonstrated through numerical simulations which susceptible modeling uncertainties lack validation resulting in a pressing research gap. Here, for first time, we conduct large-scale assessment demonstrate devastating impact consumption using real data. We find empirical evidence correlating with use; changes average intensity 0.5 K correspond an increase monthly cooling range 0.17 kWh/m2–1.84 kWh/m2. study validates theoretical proposes highly innovative methodology assess balance cities.

Язык: Английский

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Joint occurrence of heatwaves and ozone pollution and increased health risks in Beijing, China: role of synoptic weather pattern and urbanization

Atmospheric chemistry and physics, Год журнала: 2022, Номер 22(10), С. 6523 - 6538

Опубликована: Май 20, 2022

Abstract. Heatwaves (HWs) paired with higher ozone (O3) concentration at the surface level pose a serious threat to human health. Their combined modulation of synoptic patterns and urbanization remains unclear. Using 5 years summertime temperature O3 observation in Beijing, this study explored potential drivers compound HWs pollution events their public health effects. Three favorable weather were identified dominate events. These contributing enhance those conditions are characterized by sinking air motion, low boundary layer height, high temperatures. Under synergy pollution, mortality risk from all non-accidental causes increased approximately 12.31 % (95 confidence interval: 4.66 %, 20.81 %). Urbanization caused urban areas than rural stations. Particularly, due depletion NO titration traffic stations, risks related different regions as follows: suburban stations > In general, enhanced these Beijing 33.09 18.95 respectively. Our findings provide robust evidence implications for forecasting or other over world that have concentrations high-density populations.

Язык: Английский

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Modelling microscale impacts assessment of urban expansion on seasonal surface urban heat island intensity using neural network algorithms

Energy and Buildings, Год журнала: 2022, Номер 275, С. 112452 - 112452

Опубликована: Сен. 10, 2022

Язык: Английский

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Unevenly spatiotemporal distribution of urban excess warming in coastal Shanghai megacity, China: Roles of geophysical environment, ventilation and sea breezes

Building and Environment, Год журнала: 2023, Номер 235, С. 110180 - 110180

Опубликована: Март 15, 2023

Язык: Английский

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Diurnal and interannual variations of canopy urban heat island (CUHI) effects over a mountain–valley city with a semi-arid climate

Urban Climate, Год журнала: 2023, Номер 48, С. 101425 - 101425

Опубликована: Янв. 25, 2023

Язык: Английский

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