Energy efficient glazing: A comparison of microalgae photobioreactor and Iranian Orosi window designs

Ahmadi, Ferial; Wilkinson, Sara; Rezazadeh, Hamidreza; Keawsawasvong, Suraparb; Najafi, Qodsiye; Masoumi, Arash

doi:10.1016/j.buildenv.2022.109942

Cited by 7 publications

(2 citation statements)

References 43 publications

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“…Several studies have explored optimizing passive design techniques, such as the insulation level of building envelopes, window-to-wall ratio (opening ratio), overhang depth, air leakage, and energy performance of glazing, for residential buildings [15,[18][19][20][21]. The passive design is significantly influenced by climate conditions and is an effective means of reducing energy consumption in residential buildings.…”

Section: Improvement Planmentioning

confidence: 99%

Performance Improvement Plan towards Energy-Efficient Naturally Ventilated Houses in Tropical Climate Regions

et al. 2023

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The majority of the population in Indonesia lives in naturally ventilated and unconditioned residential buildings because they cannot afford energy services. This situation is common in many countries in tropical regions, negatively affecting the occupants’ health due to overheating. Therefore, housing types that can cool down indoor temperatures to the extent possible using a passive approach, rather than an active approach, should be developed. This study aims to improve naturally ventilated houses by considering the louver area and insulation of houses. First, we employ an on-site measurement for collecting data such as the indoor/outdoor temperature and relative humidity in an Indonesian city, Lhokseumawe. In addition, the experimental data are used to validate a numerical simulation model. Second, the numerical simulation is utilized to establish energy-efficient design solutions for houses in 14 Indonesian locations. The results show that, compared with the insulation cases, different louver areas insignificantly change indoor air conditions by approximately 0.3 to 1 °C. Additionally, the application of a combined performance improvement for both louver areas and building envelope insulation levels can reduce the indoor air temperature and relative humidity by 2.2 °C and 8%, respectively. Moreover, the daily cooling demand for the proposed improvement plan is reduced by 18.90% compared with that for the existing case. Furthermore, the annual cooling loads for the entire simulated regions are reduced by 46.63 GJ/year (23.09%). This study is a potential starting point for achieving zero-energy housing and occupants’ sufficient thermal comfort in unconditioned and naturally ventilated houses in Indonesia.

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Section: Improvement Planmentioning

confidence: 99%

Performance Improvement Plan towards Energy-Efficient Naturally Ventilated Houses in Tropical Climate Regions

et al. 2023

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“…Low-emissivity (Low-E) windows have gained significant attention in the field of energy-efficient building design [15]. These windows are designed to minimize heat transfer through the glass, thereby enhancing thermal insulation and reducing energy consumption [16].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Energy-Saving Potential of Buildings with Radiative Roofs and Low-E Windows in China

Jia,

Li,

Yang

et al. 2023

Sustainability

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This study develops a model for buildings with a cooling roof, walls, and low-emissivity (Low-E) windows. This model is verified through experimental analysis. The cooling demands of standard buildings and cooling buildings are compared, and the energy-saving potentials of cooling buildings are analysed. It is found that compared to standard buildings, cooling buildings exhibit superior cooling performances attributable to the application of cooling materials. Considering Hong Kong’s weather data, the indoor temperature of cooling buildings can be sub-ambient. The cooling demands of cooling buildings are decreased from 75 W/m2 to 30 W/m2, indicating a 60% energy-saving potential. The nationwide cooling demand for a standard building across China is approximately 95.7 W/m2, whereas the nationwide summer average cooling demand for cooling buildings is 52.7 W/m2. Moreover, the cooling performance of a cooling roof is adversely affected by hot and humid weather conditions, resulting in lower temperature drops in southern regions compared to northern regions. However, the nationwide temperature drop across China can still be 1.6 °C, demonstrating promising cooling potentials. For the Low-E windows, the temperature can also be sub-ambient, with a nationwide average temperature drop of 1.7 °C. Therefore, the use of Low-E windows across China can also significantly contribute to energy savings for indoor cooling. Overall, the results of this study show that cooling buildings have high energy-saving potential under various climates. The proposed model can provide a reliable tool to facilitate relevant cooling evaluation by stakeholders, thereby benefiting the popularization of this technology.

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Microalgae bio-reactive façade: Location and weather-based systematic optimization

Pozzobon

2024

Building and Environment

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Energy efficient glazing: A comparison of microalgae photobioreactor and Iranian Orosi window designs

Cited by 7 publications

References 43 publications

Performance Improvement Plan towards Energy-Efficient Naturally Ventilated Houses in Tropical Climate Regions

Performance Improvement Plan towards Energy-Efficient Naturally Ventilated Houses in Tropical Climate Regions

Investigation of the Energy-Saving Potential of Buildings with Radiative Roofs and Low-E Windows in China

Microalgae bio-reactive façade: Location and weather-based systematic optimization

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