Modeling luminous efficacy of daylight for Yongin, South Korea

A new diffuse luminous efficacy model for daylight availability in Burgos, Spain

“…They likewise affirmed that the statistical performance of the first model was better than the other two and had the additional characteristic of simplicity [16]. Further studies such as those of Kong and Kim [17] determined the diffuse luminous efficacy at Yongin (South Korea) by using the solar altitude, the relative optical air mass, the sky brightness, and the clearness index as their independent variables. They also compared their proposed model with other luminous efficacy models in the bibliography, mentioning that better statistical results were provided by the model of Muneer and Kinghorn [8] at this geographical location [17].…”

“…Further studies such as those of Kong and Kim [17] determined the diffuse luminous efficacy at Yongin (South Korea) by using the solar altitude, the relative optical air mass, the sky brightness, and the clearness index as their independent variables. They also compared their proposed model with other luminous efficacy models in the bibliography, mentioning that better statistical results were provided by the model of Muneer and Kinghorn [8] at this geographical location [17]. In turn, in a study by Patil et al [18], the luminous efficacy models of Perez et al [4], Muneer and Kinghorn [8], and Littlefair [19] were analysed .…”

“…Table 11 shows the original model and its local adaptation to the city of Burgos. These authors proposed a model for all sky conditions as a function of the solar altitude, the relative optical airmass, the sky brightness, and the clearness index [17]. Table 12 shows this model and its local adaptation to the city of Burgos.…”

Proposal and evaluation of typical illuminance year (TIY) generation procedures from illuminance or irradiance data for daylight assessment in the long term

“…In Kong and Kim's work (Kong and Kim, 2013), a diffuse luminous efficacy model was proposed depending on 𝛼, 𝑚, Δ and 𝐾 ' , the structure of which is shown in Equation ( 29).…”

Power performance of photovoltaic-integrated lightshelf systems

“…In recent times, with high oil prices continuing, and with an increasing consciousness of governments and general public of the need for energy conservation and environmental preservation, a variety of building techniques using renewable energy are being used in architecture and these account for approximately 40% of gross energy consumption in Korea. [1][2][3][4][5][6] There is now an increasing focus on the use of solar energy as alternative energy source due to its infinity and cleanness, and is being evaluated as the technology that would have the highest growth potential for building applications. [7][8][9][10][11][12] Most previous research works on the high performance of solar renewable energy were conducted to evaluate the performance of photovoltaic (PV)-integrated lightshelf system to optimize the installation angles by various diverse on-site experiments.…”