Impacts of urban morphology on reducing cooling load and increasing ventilation potential in hot-arid climate

Javanroodi, Kavan; Mahdavinejad, Mohammadjavad; Nik, Vahid M.

doi:10.1016/j.apenergy.2018.09.116

Cited by 124 publications

(48 citation statements)

References 108 publications

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“…Heating, ventilation and air conditioning (HVAC) systems, finally, often release exhaust heat in streets contributing to modify the local microclimate and potentially leading to a loop where they have to respond to their effects on the local microclimate. Taking as reference countries with hot-arid and tropical climate a vast amount of energy, particularly electricity, is consumed for cooling buildings [31]- [33] and they exhaust significant heat in the urban fabric. This negative loop is amplified as conditions worsen with climate change and induce warmer weather on average as well as stronger and more frequent extreme conditions [34], [35] increasing the average and peak cooling load as well as thermal discomfort in urban areas with hot summers [15], [36].…”

Section: Boxes In Blue Represent the Dominant Terms While Boxes In Ormentioning

confidence: 99%

“…Through applying any of these approaches, several studies have investigated the relationship between urban morphology and the energy demand and supply of buildings in urban areas, each considering some influencing parameters of urban morphology in terms of energy demand [162], [163] and wind assessment for ventilation [164]. Javanroodi et al [33] provided a review of the available methods for simulating the thermal performance and ventilation potential of buildings in urban areas and introduce a novel approach to model and assess the impacts of urban morphology on the energy performance and ventilation potential of buildings in urban areas. Finally, several other tools and methodologies are under development, aiming to provide a comprehensive methodology to model urban buildings.…”

Section: Section 43: Energy Demand and Supplymentioning

confidence: 99%

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A review of assessment methods for the urban environment and its energy sustainability to guarantee climate adaptation of future cities

Mauree

Naboni

Coccolo

et al. 2019

Renewable and Sustainable Energy Reviews

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156

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Reviewed assessment methods for the urban environment • Critically analysed papers working on urban climate and energy demand, outdoor thermal comfort and the urban energy systems. • Demonstrated the links between the processes • An integrated workflow is proposed for assessment of the urban environment. AbstractThe current climate change is calling for a drastic reduction of energy demand as well as of greenhouse gases. Besides this, cities also need to adapt to face the challenges related to climate change. Cities, with their complex urban texture and fabric, can be represented as a diverse ecosystem that does not have a clear and defined boundary. Multiple software tools that have been developed, in recent years, for assessment of urban climate, building energy demand, the outdoor thermal comfort and the energy systems. In this review, we, however, noted that these tools often address only one or two of these urban planning aspects. There is nonetheless an intricate link between them. For instance, the outdoor comfort assessment has shown that there is a strong link between biometeorology and architecture and urban climate. Additionally, to address the challenges of the energy transition, there will be a convergence of the energy needs in the future with an energy nexus regrouping the energy demand of urban areas. It is also highlighted that the uncertainty related to future climatic data makes urban adaptation and mitigation strategies complex to implement and to design given the lack of a comprehensive framework. We thus conclude by suggesting the need for a holistic interface to take into account this multi-dimensional problem. With the help of such a platform, a positive loop in urban design can be initiated leading to the development of low carbon cities and/or with the use of blue and green infrastructure to have a positive impact on the mitigation and adaptation strategies.

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Section: Boxes In Blue Represent the Dominant Terms While Boxes In Ormentioning

confidence: 99%

Section: Section 43: Energy Demand and Supplymentioning

confidence: 99%

A review of assessment methods for the urban environment and its energy sustainability to guarantee climate adaptation of future cities

Mauree

Naboni

Coccolo

et al. 2019

Renewable and Sustainable Energy Reviews

Self Cite

156

View full text Add to dashboard Cite

show abstract

“…Computational fluid dynamics (CFD) is a simulation method that has frequently been applied to investigate ventilation mechanisms on the building scale and, sometimes, on the urban scale [5,24,25]. Quite a few commercial software packages allow for an approximation of the solution to the Navier-Stokes equations that describe the physical behavior of air at low speeds [26], including ANSYS Fluent [27][28][29], CONTAMW [30], OpenFOAM [31], Autodesk CFD, and others. Among them, Autodesk CFD has been adopted and validated in several building-and urban-scale natural ventilation Energies 2019, 12, 1042 7 of 29 studies [27,[32][33][34][35].…”

Section: Cfd Simulationmentioning

confidence: 99%

“…Quite a few commercial software packages allow for an approximation of the solution to the Navier-Stokes equations that describe the physical behavior of air at low speeds [26], including ANSYS Fluent [27][28][29], CONTAMW [30], OpenFOAM [31], Autodesk CFD, and others. Among them, Autodesk CFD has been adopted and validated in several building-and urban-scale natural ventilation Energies 2019, 12, 1042 7 of 29 studies [27,[32][33][34][35]. Javanroodi et al [27] performed a validation study that applied Autodesk CFD software in two steps.…”

Section: Cfd Simulationmentioning

confidence: 99%

The Effects of Courtyards on the Thermal Performance of a Vernacular House in a Hot-Summer and Cold-Winter Climate

Hao

et al. 2019

Energies

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Achieving comfort in hot summer and cold winter (HSCW) climate zones can be challenging, since the climate is characterized by high temperatures in the summer and relatively colder temperatures in the winter. Courtyards, along with other semi-open spaces such as verandas and overhangs, play an important role in mitigating outdoor climate fluctuations. In this research, the effects of courtyards on the thermal performance of vernacular houses in HSCW climate zones were studied via field measurements and computational fluid dynamics (CFD) models. The selected courtyard house was a representative vernacular timber dwelling situated in the southeast of Chongqing, China. The indoor and outdoor air temperature measurements revealed that the courtyard did play an active role as a climatic buffer and significantly reduced the temperature’s peak value in the summer, while during the winter, the courtyard prevented the surrounding rooms from receiving direct solar radiation, and thus to some extent acted as a heat barrier. The contributions of thermal mass are quite limited in this area, due to insufficient solar radiation in winter and general building operations. The natural ventilation mechanism of courtyard houses in HSCW zones was further studied through CFD simulations. The selected opened courtyard was compared to an enclosed structure with similar building configurations. The airflow patterns driven by wind and buoyancy effects were first simulated separately, and then together, to illustrate the ventilation mechanisms. The simulation results show that the courtyard’s natural ventilation behavior benefited from the proper openings on ground level.

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“…In this paper, lighting architecture has been seen as an essential tool to enhance sustainability in tourism destination. Leading theories in urban management such as city prosperity, healthy environment, educating city emphasize on significance of sustainable tourism [23,24].…”

Section: Introductionmentioning

confidence: 99%

Sci-Tech Lighting for High-Performance Architecture: A Bridge to Sustainable Development in Touristic Destinations

Gharibshah¹,

Mahdavinejad²

2018

J Tourism Hospit

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The nature of tourism destination has been the theme of many research papers, which covers a wide range of areas including socio-cultural relationships at one end and geographical concerns at the other end of the spectrum.The focus of the current study is lighting architecture viewed as an essential tool to endorse sustainability in tourism destination. For this purpose, two Likert Scale questionnaires were created and completed by five experts of tourism-related fields. The questionnaires targeted lighting, sustainability and social development effects on energy efficiency, aesthetics, and ergonomic aspects. Data were gathered and tabulated and eventually analyzed by means of SPSS software. The results revealed that lighting had significant impacts on ergonomic and aesthetic aspects of tourism, but the effect was minimal when it came to energy efficiency. Also, it became clear that sustainability greatly affected aesthetic, ergonomic and energy efficiency aspects. According to the participants, energy efficiency in lighting architecture influenced economic, social and environmental development. Overall, the application of high tech lighting technology in architecture can boost efficiency in many respects. Harmonious with various aspects of human life, lighting should be deemed a priority in policies formulated to ameliorate tourism industry.Citation: Gharibshah A, Mahdavinejad M (2018) Sci-Tech Lighting for High-Performance Architecture: A Bridge to Sustainable Development in Touristic Destinations. J Tourism Hospit 7: 389.

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Impacts of urban morphology on reducing cooling load and increasing ventilation potential in hot-arid climate

Cited by 124 publications

References 108 publications

A review of assessment methods for the urban environment and its energy sustainability to guarantee climate adaptation of future cities

A review of assessment methods for the urban environment and its energy sustainability to guarantee climate adaptation of future cities

The Effects of Courtyards on the Thermal Performance of a Vernacular House in a Hot-Summer and Cold-Winter Climate

Sci-Tech Lighting for High-Performance Architecture: A Bridge to Sustainable Development in Touristic Destinations

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