Experimental and numerical evaluation of the crystalline silicon PV window under the climatic conditions in southwest China

Chen, Mo; Zhang, Wei; Xie, Lingzhi; Ni, Zhichun; Quan, Wei; Wang, Wei; Tian, Huixin

doi:10.1016/j.energy.2019.06.146

Cited by 55 publications

(18 citation statements)

References 16 publications

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“…The average illumination uniform in summer, autumn, and winter could achieve a higher level with 0.6, 0.65, and 0.68, respectively. (a) When combined with our previous research of PV windows [3], after the unit installation with the PV window, although the indoor daylighting illumination would be reduced, the UDI and uniformity would be effectively improved because of the blocking of daylighting. It might improve the light environment.…”

Section: Analysis Of the Daylighting Performancementioning

confidence: 96%

“…C-Si PV cell is opaque, but the natural lighting indoors can be improved by changing the fraction of cover, and the power generated is higher than that of a-Si PV cell. According to our previous study [3], compared with conventional clear windows, the air-conditioning energy consumption decreased around 22kWh, lighting energy consumption increased around 13kWh, and PV generated electricity around 20kWh in Sep. The air-conditioning energy saving and PV energy generation are the main impact of the PV window.…”

Section: Introductionmentioning

confidence: 92%

“…In order to analyze the shielding effect of PV window on solar radiation, the SHGC of the PV window was calculated using Equation (3). The test results show that the SHGC of the PV window is 0.22, which is smaller than that of the common glazing with 0.72.…”

Section: Analysis Of the Thermal Performancementioning

confidence: 99%

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Cross-seasonal Experimental Study on the Comprehensive Performance of C-Si PV Window

et al. 2020

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PV windows can potentially produce electricity, reduce the air-conditioning load, and provide natural light. Cross-seasonal experimental tests for long period could eliminate the gap between real outdoor test and simulation estimation. In this research, the lighting-thermal-electricity performance of high-efficiency c-silicon PV windows was tested, and the improvement has been put forward according to the conditions. The long-term experiment was conducted cross different seasons, including summer, autumn, and winter seasons. The highest average power generation, 50W/m2, could be found in autumn. The average outside surface temperature of the PV window would reach 48 °C in sunny days in the autumn, which was higher than other seasons. Although the c-Si PV window maybe block the partial daylighting, the daylighting requirement still could be satisfied with the most days. Furthermore, the average Useful Daylight Illuminance was the highest in summer up to 0.79, and the average illumination uniform could be achieved at a high level in all seasons. For the improvement suggestions, some measures could be taken to reduce the indoor cooling load in summer. During winter, appropriate inner shading measures might be taken to prevent excessive illumination in the building, and allow the electricity and thermal performance of PV window.

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Section: Analysis Of the Daylighting Performancementioning

confidence: 96%

Section: Introductionmentioning

confidence: 92%

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Cross-seasonal Experimental Study on the Comprehensive Performance of C-Si PV Window

et al. 2020

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“…PV windows are a rather novel concept in building app Its design generally aims to strike a balance between system daylighting. They were derived from successful precedents that have examined the power output of semi-and fully trans phous BIPV technology on double-glazing systems [55,56]. Fo the PV solutions, the same cell type technology was favoured A semi-transparent PV window (STPV) system was designed (see Table 12), noting that the PV market in KSA is heavily re so, even if not currently available commercially, there is an op of this module type in the future if deemed cost-effective.…”

Section: Current Escriptionmentioning

confidence: 99%

“…Its design generally aims to strike a balance between system efficiency, solar gains, and daylighting. They were derived from successful precedents in similar climate conditions that have examined the power output of semi-and fully transparent crystalline and amorphous BIPV technology on double-glazing systems [55,56]. For a fair comparison between the PV solutions, the same cell type technology was favoured (i.e., crystalline technology).…”

Section: Current Escriptionmentioning

confidence: 99%

Unlocking the Residential Retrofitting Potential in a Three-Degree World: A Holistic Approach to Passive Design in Hot Climates

et al. 2021

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The Kingdom of Saudi Arabia (KSA), as one of the largest polluters worldwide, has released its Vision 2030 that seeks sustainable development via economic diversification to transition towards lower CO2 energy systems. Due to fast population and economic growth, the Kingdom is undergoing an increasing volume of construction, which is projected to exacerbate the energy-related emissions. Strategies are needed to decarbonise the housing stock and help bridge the existing performance gap with the updated Saudi Building Code (SBC). This study proposes a holistic retrofitting approach for the Saudi building industry to facilitate the identification of energy consumption reduction optimisation solutions, covering the assessment of insulation, reflective coating surfaces, sun shading devices, efficient glazing solutions, building-integrated renewables, and green roofs. The proposed flexible approach proved how blended retrofit packages provide improved performance, with rooftop photovoltaic microgeneration and improved glazing technologies singlehandedly outperforming the remaining proposals for KSA’s Riyadh climate conditions. Only the photovoltaic system could meet the simulated SBC performance benchmark independently, positioning it as an instrumental tool in improving the overall effectiveness of the retrofit packages.

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Intelligent windows for electricity generation: A technologies review

et al. 2022

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Buildings are responsible for over 40% of total primary energy consumption in the US and EU and therefore improving building energy efficiency has significant potential for obtaining net-zero energy buildings reducing energy consumption. The concurrent demands of environmental comfort and the need to improve energy efficiency for both new and existing buildings have motivated research into finding solutions for the regulation of incoming solar radiation, as well as ensuring occupant thermal and visual comfort whilst generating energy onsite. Windows as building components offer the opportunity of addressing these issues in buildings. Building integration of photovoltaics permits building components such as semi-transparent façade, skylights and shading devices to be replaced with PV. Much progress has been made in photovoltaic material science, where smart window development has evolved in areas such as semi-transparent PV, electrochromic and thermochromic materials, luminescent solar concentrator and the integration of each of the latter technologies to buildings, specifically windows. This paper presents a review on intelligent window technologies that integrate renewable energy technologies with energy-saving strategies contributing potential solutions towards sustainable zero-energy buildings. This review is a comprehensive evaluation of intelligent windows focusing on state-of-the-art development in windows that can generate electricity and their electrical, thermal and optical characteristics. This review provides a summary of current work in intelligent window design for energy generation and gives recommendations for further research opportunities.

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Experimental and numerical evaluation of the crystalline silicon PV window under the climatic conditions in southwest China

Cited by 55 publications

References 16 publications

Cross-seasonal Experimental Study on the Comprehensive Performance of C-Si PV Window

Cross-seasonal Experimental Study on the Comprehensive Performance of C-Si PV Window

Unlocking the Residential Retrofitting Potential in a Three-Degree World: A Holistic Approach to Passive Design in Hot Climates

Intelligent windows for electricity generation: A technologies review

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