Study of models for predicting the diffuse irradiance on inclined surfaces

Li, Danny H.W.; Cheung, Gary H.W.

doi:10.1016/j.apenergy.2004.06.007

Cited by 37 publications

(5 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Substantial variations in sky radiance may have occurred between each record. Also, for "out of range" measurements (points close to the solar position under nonovercast skies), an estimation of the sky radiance was made from a simple average of the radiance at nearby points, and such conversion could introduce data distortion [21]. Previous findings, however, showed that the numerical method can provide an acceptable alternative to determine the amount of solar radiation on a horizontal surface and vertical planes facing the four cardinal orientations when sky radiance data are available [10].…”

Section: Sky Radiance Modelmentioning

confidence: 99%

Determining the Optimum Tilt Angle and Orientation for Solar Energy Collection Based on Measured Solar Radiance Data

Lam

2007

International Journal of Photoenergy

103

View full text Add to dashboard Cite

A prior requirement to the design of any solar-based conversion systems is the knowledge of optimum orientation and tilt surface at which peak solar energy can be collected. In many parts of the world, however, the solar radiation data for the surfaces of interest are not always available. This paper presents a numerical approach to calculate the solar radiation on sloped planes by integrating the measured sky radiance distributions. The annual total solar yield at different sloped surfaces facing various orientations and monthly solar radiations at the optimal tilt surface and three vertical planes facing east, south, and west were determined. The energy outputs and efficiencies were simulated using a computer package. The environmental benefits in terms of greenhouse gases reductions and cost implications were also considered. The findings provide technical information for engineers to design and evaluate photovoltaic (PV) systems which could contribute to the environmental, energy, and economic aspects.

show abstract

Section: Sky Radiance Modelmentioning

confidence: 99%

Determining the Optimum Tilt Angle and Orientation for Solar Energy Collection Based on Measured Solar Radiance Data

Lam

2007

International Journal of Photoenergy

103

View full text Add to dashboard Cite

show abstract

“…Monthly estimated and measured database were analyzed by computing the normalized mean bias error factor (NMBE) and the normalized root mean square error (NRMSE) 31 NMBEð%Þ ¼ 100…”

Section: Results and Valorizationmentioning

confidence: 99%

Sizing optimization of a wind pumping plant: Case study in Sfax, Tunisia

Brahmi

Chaabene

2012

Journal of Renewable and Sustainable Energy

View full text Add to dashboard Cite

The effectiveness of wind water pumping plant depends on the available wind potential in the region and on the plant components sizing. This paper presents an algorithm for wind potential assessment based on the widely used Weibull distribution. As many methods are adopted to determine Weibull parameters, an improvement version based on the selection of the most accurate method and the establishment of a huge database using an artificial neural network (ANN) is proposed. Since the site wind performance is evaluated, the wind generator blades surface is computed on the basis of the variation limits of the monthly wind potential and the well height of rise. The sizing principal considers the calculation of the gravity centre of the general function of surface. Results are illustrated using meteorological database provided by the National Institute of Meteorology (INM) corresponding to Sfax, Tunisia. Obtained results confirm that the modified maximum likelihood method (MMLM) is the most accurate one as it provides a monthly error between À11:6% and 2:3%. Hence, a typical pumping plant, with monthly water need of 15 m 3 month located in Sfax, Tunisia, requires 37 m 2 as optimum blades surface.

show abstract

“…BIPV tiles can be similar in appearance to traditional tiles regarding color and size to meet the requirements of sensitive architectural areas. According to [48], since Singapore is located near the equator, the optimal solar radiation reception direction is 10 degrees east. Although BIPV tile products presumably achieve a high-power generation efficiency of 19.5% [49], their actual application requires further local verification.…”

Section: Bipv Roof Systemsmentioning

confidence: 99%

A Review of Building-Integrated Photovoltaics in Singapore: Status, Barriers, and Prospects

Chen

Heng

2022

Sustainability

View full text Add to dashboard Cite

Energy consumption enhancement has resulted in a rise in carbon dioxide emissions, followed by a notable greenhouse effect contributing to global warming. Globally, buildings consume one-third of the total energy due to the continued expansion of building areas caused by population growth. Building-integrated photovoltaics (BIPVs) represent an effective technology to attain zero energy buildings (ZEBs) via solar energy use. This research begins with the tropical green building concept in Singapore associated with renewable energy and gives an overview of the potential of solar photovoltaic energy. Strategies for BIPV spread in Singapore are also provided. Considering both BIPV system life cycle assessment (LCA) and BIPV industry standards and recent developments, this research determines whether Singapore should adopt this technology. Although the BIPV product market has expanded regarding BIPV products, systems and projects, there remain certain barriers to BIPV adoption in Singapore. Additionally, future research directions for tropical BIPV applications are outlined. The Singapore BIPV system serves as an example for a number of other tropical countries facing comparable challenges.

show abstract

Study of models for predicting the diffuse irradiance on inclined surfaces

Cited by 37 publications

References 22 publications

Determining the Optimum Tilt Angle and Orientation for Solar Energy Collection Based on Measured Solar Radiance Data

Determining the Optimum Tilt Angle and Orientation for Solar Energy Collection Based on Measured Solar Radiance Data

Sizing optimization of a wind pumping plant: Case study in Sfax, Tunisia

A Review of Building-Integrated Photovoltaics in Singapore: Status, Barriers, and Prospects

Contact Info

Product

Resources

About