Experimental study on the performance of solar window films in office buildings in Kuwait

Sedaghat, Ahmad; Alkhatib, Fadi; Oloomi, Seyed Amir Abbas; Sabri, Farhad; Salem, Hayder; Sabati, Mohammad; Zafar, Waqar Jan; Malayer, Mahdi Ashtian; Negahi, Amirhossein

doi:10.1007/s11051-020-04789-8

Cited by 15 publications

(6 citation statements)

References 19 publications

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“…Daily experimental results for the month of June 2019 was reported by Sedaghat et al (2020). In this paper, experimental data are only presented for two similar offices with/without 3M Neutral 20 window films.…”

Section: Resultsmentioning

confidence: 99%

Effects of Window Films in Thermo-Solar Properties of Office Buildings in Hot-Arid Climates

et al. 2021

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The electricity consumption in residential/office buildings corresponded to 45% of the total annual electricity demand in hot-arid climates. This accounted for 27.2 TWh of electricity consumption with 14.2 MWh/capita/year in Kuwait. In this research, four offices in an educational building were equipped with a meteorological data logging system using temperature, humidity, and illuminance sensors. All four offices had double-glazed windows. Moreover, two offices were equipped with two types of commercially available window films. Two million data were stored in iCloud using Wi-Fi and an Internet of Things (IoT) system for the 3 months of June, July, and August 2019. Here, histograms and the kernel density estimation (KDE) of temperature/humidity were analyzed and compared for the two offices with/without 3M Neutral 20 window films. Two floors of the same building consisting of 31 offices were also modeled and simulated to study energy saving and CO2 footprint reduction using various window films. The results of simulations for the month of July 2019 using SOL 101 and SOL 102 window films, respectively, showed that about 250 kg and 255 kg of production of CO2 could be reduced and energy saving counted for 416 and 422 kWh. Measurements from offices with 3M Neutral 20% and 3M Neutral 70% window films for the month of July 2019 indicated that the carbon footprint could be reduced by about 82 kg and 0.43 kg and energy saving counted for 147.11 and 0.71 kWh, respectively. It was observed that an annual energy saving and CO2 footprint reduction of 2.76% could be achieved using window films in a hot-arid climate.

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Section: Resultsmentioning

confidence: 99%

Effects of Window Films in Thermo-Solar Properties of Office Buildings in Hot-Arid Climates

et al. 2021

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“…Therefore, their application should be carefully evaluated [50]. In hot desert climate, window films have been applied to windows with double glazing, and never with single glazing [50][51][52][53][54][55]. It must be said that in this region, the strongest solar radiation occurs near midday at the solar solstice, when the Sun is overhead, i.e., perpendicular to the soil, but grazing the windows, i.e., it provides almost no energy.…”

Section: Adoption Of Window Glass Filtersmentioning

confidence: 99%

Microclimate Analysis of Outdoor Showcases in Tropical Climate—Two Case Studies in Al Ain, Abu Dhabi, United Arab Emirates

Camuffo,

della Valle,

Giorio

et al. 2024

Climate

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Al Ain, near Abu Dhabi, United Arab Emirates, is characterized by hot desert climate with high temperatures, aridity, and almost no rain. Several truncated earthen walls were discovered at the historic house of Sheikh Mohammed Bin Khalifa, a component of the World Heritage Cultural Sites. These remains are preserved in situ, outdoors, protected in glass showcases for public display. As this situation is not documented in the literature, the local Authority has requested to study the showcase environment to optimize conservation. The solar radiation and the projected shades have been modeled over one year; the temperature and humidity inside and outside the showcases, as well as the moisture content, have been measured to assess the potential preservation risks. The paper presents the results, i.e., the direct solar radiation generates extreme conditions of greenhouse effect with extremely high temperatures and forces evaporation from the remains. During the night, the excess moisture condenses on the inner surface of the glass panes, forming large drops that affect viewing and are dangerous for conservation. The repetition of evaporation–condensation cycles accumulates soluble salts on the remains. The paper discusses mitigation strategies (e.g., shading, ventilation, and cooling, to reduce the greenhouse effect) to improve conservation and fruition.

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“…In parallel to NPC, the levelized cost of energy (LCOE) is also calculated using Equation (7), which represents the average cost per kWh of useful electrical energy produced by the system [36].…”

Section: Phase V-financial Modeling and Optimizationmentioning

confidence: 99%

“…As a result, there is a growing focus on implementing energy-conservation strategies, policies, and research initiatives to enhance the energy efficiency of both commercial and residential buildings. This need has been coupled with research efforts covering various facets of energy efficiency, including low-energy building systems (e.g., [5,6]), passive design strategies (e.g., [7,8]), urban-scale retrofits (e.g., [9]), and building codes and demand-side management strategies (e.g., [10,11]).…”

Section: Introduction 1backgroundmentioning

confidence: 99%

Potential for Net-Zero Energy Communities in Kuwait: An Empirical Techno-Economic Modeling and Optimization Approach

Alaifan,

Azar

2023

Buildings

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A net-zero energy community (NZEC) is a promising paradigm that can directly contribute to a sustainable building sector and infrastructure. This research presents a unique empirical techno-economic optimization and evaluation approach for NZEC potential and enablers through its application to the understudied context of Kuwait. The proposed approach is unique, as it integrates data-driven and physics-based modelling capabilities, captures the impact of urban form on NZEC techno-economic performance, and quantifies through sensitivity analyses the impact of potential enablers in overcoming financial barriers to adoption. Results indicate that NZECs are far from being competitive in Kuwait compared to the business-as-usual scenario of electricity grid purchase at highly subsidized tariffs. Increasing electricity rates to a minimum of 0.03 $/kWh is recommended, coupled with investing in energy efficiency and enabling grid sell-back capabilities. Finally, results indicate that the energy demand profiles of office and multi-family buildings are more advantageous for efficient NZEC design and performance than villas, the most predominant building type in Kuwait. Limiting the share of NZEC energy demand from villas to 25% helps avoid excessive energy generation and storage capacities and costs.

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Experimental study on the performance of solar window films in office buildings in Kuwait

Cited by 15 publications

References 19 publications

Effects of Window Films in Thermo-Solar Properties of Office Buildings in Hot-Arid Climates

Effects of Window Films in Thermo-Solar Properties of Office Buildings in Hot-Arid Climates

Microclimate Analysis of Outdoor Showcases in Tropical Climate—Two Case Studies in Al Ain, Abu Dhabi, United Arab Emirates

Potential for Net-Zero Energy Communities in Kuwait: An Empirical Techno-Economic Modeling and Optimization Approach

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