Search Results - subject:"Diffuse radiation"

Models for the estimation of diffuse solar radiation for typical cities in Turkey

Bakirci, Kadir - In: Energy 82 (2015) C, pp. 827-838

In solar energy applications, diffuse solar radiation component is required. Solar radiation data particularly in terms of diffuse component are not readily affordable, because of high price of measurements as well as difficulties in their maintenance and calibration. In this study, new...

Persistent link: https://www.econbiz.de/10011209459

Decomposing global solar radiation into its direct and diffuse components

Boland, John; Huang, Jing; Ridley, Barbara - In: Renewable and Sustainable Energy Reviews 28 (2013) C, pp. 749-756

stationary photovoltaic plant, we require global radiation series, but also the contemporaneous diffuse radiation series … whether one can simply use a model for predicting diffuse radiation using multiple predictions derived by our research team …

Persistent link: https://www.econbiz.de/10010709396

Exergy analysis of solar collectors, from incident radiation to dissipation

Pons, Michel - In: Renewable Energy 47 (2012) C, pp. 194-202

It is essential to know the actual exergy input of solar radiation in a given location in order to establish the exergy budget of a solar collector or any other solar-powered process. To do so, the theories on the entropy of attenuated radiation must be re-interpreted before developing a method...

Persistent link: https://www.econbiz.de/10010804767

Estimating monthly average daily diffuse solar radiation with multiple predictors: A case study

Li, Huashan; Ma, Weibin; Wang, Xianlong; Lian, Yongwang - In: Renewable Energy 36 (2011) 7, pp. 1944-1948

Solar radiation measurements are not easily available, especially for the diffuse solar radiation. In this study, two models for estimating the diffuse solar radiation are proposed based on multiple predictors including the clearness index, relative sunshine duration, ambient temperature and...

Persistent link: https://www.econbiz.de/10010805225

Modelling of diffuse solar fraction with multiple predictors

Ridley, Barbara; Boland, John; Lauret, Philippe - In: Renewable Energy 35 (2010) 2, pp. 478-483

plane using trigonometry, we need to have diffuse radiation on the horizontal plane available. There are regression …

Persistent link: https://www.econbiz.de/10011044750

A new methodology to optimise solar energy extraction under cloudy conditions

Armstrong, S.; Hurley, W.G. - In: Renewable Energy 35 (2010) 4, pp. 780-787

least amount of direct radiation with approximately half arriving as diffuse radiation, due to frequent, heavy cloud cover …

Persistent link: https://www.econbiz.de/10011045204

Models of diffuse solar radiation

Boland, John; Ridley, Barbara; Brown, Bruce - In: Renewable Energy 33 (2008) 4, pp. 575-584

diffuse on the horizontal. Models for estimating the diffuse radiation on the horizontal from horizontal global that have been …

Persistent link: https://www.econbiz.de/10010805497

Estimation of daily diffuse solar radiation in China

Jin, Zhou; Yezheng, Wu; Gang, Yan - In: Renewable Energy 29 (2004) 9, pp. 1537-1548

general correlation model for calculating the daily diffuse radiation was derived on the basis of Liu and Jordan method. Two …

Persistent link: https://www.econbiz.de/10010803601

Estimation of horizontal diffuse solar radiation with measured daily data in China

Rensheng, Chen; Ersi, Kang; Jianping, Yang; Shihua, Lu; … - In: Renewable Energy 29 (2004) 5, pp. 717-726

Three most widely used diffuse radiation models are calibrated using the daily data between January 1 1994 and December … suitable for diffuse radiation estimation in China. The averaged correlation coefficient R2 is 0.84 and the maximum value is 0 … model could also be used for diffuse radiation estimation in China, and the averaged value of R2 and parameter X0 is 0 …

Persistent link: https://www.econbiz.de/10010804631

Some comments on time variation in solar radiation over Baghdad, Iraq

Al-Riahi, M.; Al-Kayssi, A. - In: Renewable Energy 14 (1998) 1, pp. 479-484

total of daily diffuse radiation at Baghdad is about 70.82 MJ/m2. The mean monthly values of clearness index KT present a …

Persistent link: https://www.econbiz.de/10010803633