Comparison of passive cooling techniques in improving thermal comfort of occupants of a pre-fabricated building

Samani, Pouya; Leal, Vítor; Mendes, Adélio; Correia, Nuno

doi:10.1016/j.enbuild.2016.03.055

Cited by 44 publications

(17 citation statements)

References 76 publications

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“…The PCM passive system (passive cooling and heating) is a sustainable solution to improve the comfort quality and the energy performance by reducing the cooling and heating demands in lightweight buildings. Passive cooling plays an important role in the sustainable development of the building industry [41][42][43].…”

Section: Introductionmentioning

confidence: 99%

“…Off-site construction is often referred as a modern method of construction which is more environmentally friendly since repeatable performance, minimal waste and high levels of quality can be guaranteed [45]. Other advantages associated with such buildings are rapid construction, minimal handling and lower need for resources which have led to growth of pre-fabricated (off-site) construction [41,45].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Energy savings due to the use of PCM for relocatable lightweight buildings passive heating and cooling in different weather conditions

Marín

Saffari

Gracia

et al. 2016

Energy and Buildings

177

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Energy savings due to the use of PCM for relocatable lightweight buildings passive heating and cooling in different weather conditions

Marín

Saffari

Gracia

et al. 2016

Energy and Buildings

177

View full text Add to dashboard Cite

show abstract

“…Combination of Shading over hangs, with Insulation, alternate windows [5] results into 30% reduction annual energy consumption. Cool painting is one of the option to reduce indoor temperature [6] effectively. Passive strategies have to be chosen carefully for the hot and humid climates [7] to achieve acceptable energy savings.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of a Building towards Energy Efficiency

Ijasahmed¹,

Krishnan.L²,

Kumar.L³

2019

IJITEE

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Residential buildings are the significant energy consumer of the India which is about 24% of the total energy consumption. Energy efficient buildings are the ideal solution to reduce energy consumption in the building sector. The energy efficient buildings can be achieved by incorporating passive features or renewable energy systems or both. The current work aims to perform a retrofitting analysis of an existing building into an energy efficient building. For performing the energy analysis REVIT 2017 tool is used. Using the REVIT 2017 tool building model is developed, building information are loaded and energy analyses are performed. The building is analyzed as two cases. The first case is to estimate energy performance of the existing building. The second case is to incorporate passive features and renewable energy system to the building and evaluate the energy performance. Existing building Energy Usage Intensity (EUI) was 193 kWh/m2 /year. When passive features (Insulation, additional window glazing and efficient air conditioning systems) alone incorporated to the building the building EUI is reduced to 138 kWh/m2 /year. Along with Passive features Photovoltaic modules with different efficiencies 16%, 18% and 20% are considered for renewable energy generation. The energy generation for the different PV modules for three different roof area (40%, 60% and 70% of total roof area) is evaluated. The energy usage intensity varies from 11.4 from -150 kWh/m2 /year for the combination of different efficiency of PV module and the different % of roof area covered. The negative sign indicates the energy generation after the required energy usage. The payback period for only incorporating passive features is 6.3 years and while incorporating PV system with passive features is 9 years.

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“…Other benefits that have been found with this type of solutions are the visual effects and thermal comfort. [5] On the architecture of the Bronze Age, the stone foundation was mainly used, attached with volcanic materials [6], though unfortunately this material is not available on most cases. Using existing elements of the region is generally advisable because it allows to reduce the social and environmental impact [7] Even with the benefits that have been found, the world should adopt a development within this type of architecture [8] and the results found regarding the resistance of vertical structural elements in the building are encouraging [9] in many places the foundation continues to be a problem for the previously mentioned elements mainly because the earth elements, by themselves, have a low humidity resistance [10] that can be present in the subsoil and, even though it has been observed that the stone is a viable solution to this [11] as the rocky combinations with other elements [12] in many places there is no such alternative due to the transportation expenses it implies and the natural availability.…”

Section: Introductionmentioning

confidence: 99%

Footing Design with Poured Earth

Zúñiga-Leal¹,

Suárez-Domínguez²,

Aranda-Jiménez³

2016

IOSR

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Nowadays, sustainable building is a responsibility within construction and the use of bearing walls made of compressed earth blocks, rammed earth, poured earth, among other earth building techniques, has become more frequent. Nevertheless, generally these structures must be found over foundations that correspond to the conventionally used reinforced concrete. Even though from a sustainable point of view, the use of stone is accepted, within the cases of zones where this material does not exist, it is necessary to develop new ecologic technologies compatible with the elements it sustains. This paper proposes the use of poured earth or fluid soilcement, of the south area of Tamaulipas, Mexico as a material for foundations; pointing out the use of designed footings that can be substituted by a monolithic piece with low steel quantity and proposing its constructive method based on stone structures.

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Comparison of passive cooling techniques in improving thermal comfort of occupants of a pre-fabricated building

Cited by 44 publications

References 76 publications

Energy savings due to the use of PCM for relocatable lightweight buildings passive heating and cooling in different weather conditions

Energy savings due to the use of PCM for relocatable lightweight buildings passive heating and cooling in different weather conditions

Modeling and Simulation of a Building towards Energy Efficiency

Footing Design with Poured Earth

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