An enthalpy-based energy savings estimation method targeting thermal comfort level in naturally ventilated buildings in hot-humid summer zones

He, Yueer; Liu, Meng; Kvan, Thomas; Peng, Shini

doi:10.1016/j.apenergy.2016.11.098

Cited by 28 publications

(9 citation statements)

References 46 publications

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“…Moreover, they have become a silver bullet in energy conservation. A finding of a prior research in China shows that the efficiency reaches 10-30% [24]. Energy conservation has a lot to do with passive design as it is believed to be able to overcome climate though not the extreme one.…”

Section: The Differences Between Pmv and Amvmentioning

confidence: 99%

The comparison of vernacular residences’ thermal comfort in coastal with that in mountainous regions of tropical areas

Hermawan

Prianto

Setyowati

et al. 2017

AIP Conference Proceedings

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Section: The Differences Between Pmv and Amvmentioning

confidence: 99%

The comparison of vernacular residences’ thermal comfort in coastal with that in mountainous regions of tropical areas

Hermawan

Prianto

Setyowati

et al. 2017

AIP Conference Proceedings

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“…Regarding space conditioning, this approach has been reasonably successful in buildings with heating, ventilation and air conditioning (HVAC) systems, which are commonly found in developed countries, particularly in heating dominated climates [1,16,17]. However, a large proportion of world's population lives in developing countries located in tropical regions, where the use of HVAC in buildings is not yet widespread due to economic, technical and/or cultural constraints [18][19][20][21][22][23][24][25][26][27][28][29]. Consequently, these countries have not faced the need for energy policy focused on space conditioning.…”

Section: Introductionmentioning

confidence: 99%

Seasonal Thermal Sensation Vote – An indicator for long-term energy performance of dwellings with no HVAC systems

Cóstola

Carreira

Fernandes

et al. 2019

Energy and Buildings

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Dwellings with no heating, ventilation and air conditioning (HVAC) systems are commonly found in many countries. The long-term thermal performance of these buildings can be assessed based on hourly data of occupant thermal discomfort integrated over the required timespan (e.g. total degree hours of discomfort per year). This approach can be easily applied when simulation is adopted in the assessment, but field studies using this approach are rare as they would require complex, costly and long measurement/survey campaigns. This paper addresses the challenges on conducting field studies on long-term thermal performance of dwellings with no HVAC system by introducing a novel performance indicator: the Seasonal Thermal Sensation Vote (S-TSV). S-TSV adopts the standard 7-point thermal sensation scale and is based on the perceived overall thermal sensation recalled by the user of the building for specific seasons and times of day. The new performance indicator is not intended to replace existing ones, but to complement them in the understanding of the complex thermal performance processes taking place in buildings with no HVAC. S-TSV was applied in a field study targeting a small sample of dwellings in Brazil. Results demonstrate the capabilities of S-TSV to describe trends in buildings performance in this sample. S-TSV also assisted on the identification of relationships between such performance and some independent variables addressed in this field study (e.g. windows operation, footwear and income), considering a threshold of p-values < 0.05 on the chi-square statistic test.

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“…Finally, from the view point of natural ventilation, previous studies analyzed the energy-saving potential and ventilation performance focused on buoyancy-driven ventilation and wind-driven ventilation. In other words, if a building is designed with factors of building geometry, natural lighting, and natural ventilation being taken into consideration at the beginning of the process, the following effects can be obtained: 20% energy efficiency improvement, 25% heating, and 10-30% cooling load reduction [12,21,33]. However, it is still insufficient to consider only passive sustainable design in terms of implementing nZEB.…”

Section: Part A-1: Passive Sustainable Designmentioning

confidence: 99%

“…Generally, natural ventilation can be categorized based on two mechanisms: (i) buoyancy-driven ventilation by the vertical and horizontal temperature difference; and (ii) wind-driven ventilation by the pressure difference between the front and the back of the building (refer to Table 3) [29][30][31][32][33][34][35][36][37][38]. First, there are various previous studies related to buoyancy-driven ventilation [29][30][31][32][33][34]. Li and Liu (2014) focused on the thermal performance of phase-change-material (PCM)-based solar chimney within laboratory conditions with three different heat fluxes (500, 600, and 700 W/m 2 ).…”

Section: Part A-1: Passive Sustainable Designmentioning

confidence: 99%

Advanced Strategies for Net-Zero Energy Building: Focused on the Early Phase and Usage Phase of a Building’s Life Cycle

Hong

Kim

et al. 2017

Sustainability

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Abstract:To cope with 'Post-2020', each country set its national greenhouse gas (GHG) emissions reduction target (e.g., South Korea: 37%) below its business-as-usual level by 2030. Toward this end, it is necessary to implement the net-zero energy building (nZEB) in the building sector, which accounts for more than 25% of the national GHG emissions and has a great potential to reduce GHG emissions. In this context, this study conducted a state-of-the-art review of nZEB implementation strategies in terms of passive strategies (i.e., passive sustainable design and energy-saving technique) and active strategies (i.e., renewable energy (RE) and back-up system for RE). Additionally, this study proposed the following advanced strategies for nZEB implementation according to a building's life cycle: (i) integration and optimization of the passive and active strategies in the early phase of a building's life cycle; (ii) real-time monitoring of the energy performance during the usage phase of a building's life cycle. It is expected that this study can help researchers, practitioners, and policymakers understand the overall implementation strategies for realizing nZEB.

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An enthalpy-based energy savings estimation method targeting thermal comfort level in naturally ventilated buildings in hot-humid summer zones

Cited by 28 publications

References 46 publications

The comparison of vernacular residences’ thermal comfort in coastal with that in mountainous regions of tropical areas

The comparison of vernacular residences’ thermal comfort in coastal with that in mountainous regions of tropical areas

Seasonal Thermal Sensation Vote – An indicator for long-term energy performance of dwellings with no HVAC systems

Advanced Strategies for Net-Zero Energy Building: Focused on the Early Phase and Usage Phase of a Building’s Life Cycle

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