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Akademický článek

Are local wind power resources well estimated?

Autor: Erik Lundtang Petersen, Ib Troen, Hans E Jørgensen, Jakob Mann

Publikováno v: Environmental Research Letters, Vol 8, Iss 1, p 011005 (2013)

Planning and financing of wind power installations require very importantly accurate resource estimation in addition to a number of other considerations relating to environment and economy. Furthermore, individual wind energy installations cannot in

Externí odkaz: https://doaj.org/article/ac314d59c9ee4194ad9885301ad04daa

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Satellite-based estimation of roughness lengths and displacement heights for wind resource modelling

Autor: Finn-Hendrik Permien, Ib Troen, Merete Badger, Rogier Floors, Kenneth Grogan

Publikováno v: Wind Energy Science
Wind Energy Science, Vol 6, Pp 1379-1400 (2021)
Floors, R, Badger, M, Troen, I, Grogan, K & Permien, F H 2021, ' Satellite-based estimation of roughness lengths and displacement heights for wind resource modelling ', Wind Energy Science, vol. 6, no. 6, pp. 1379-1400 . https://doi.org/10.5194/wes-6-1379-2021

Wind turbines in northern Europe are frequently placed in forests, which sets new wind resource modelling requirements. Accurate mapping of the land surface can be challenging at forested sites due to sudden transitions between patches with very diff

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec1a984c5f8c94abf83b67cb81c8fa0d
https://wes.copernicus.org/preprints/wes-2021-28/

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Probabilistic stability and ‘tall’ wind profiles: theory and method for use in wind resource assessment

Autor: Mark C. Kelly, Ib Troen

Publikováno v: Kelly, M C & Troen, I 2016, ' Probabilistic stability and "tall" wind profiles: theory and method for use in wind resource assessment ', Wind Energy, vol. 19, no. 2, pp. 227–241 . https://doi.org/10.1002/we.1829

A model has been derived for calculating the aggregate effects of stability and the finite height of the planetary boundary layer upon the long-term mean wind profile. A practical implementation of this probabilistic extended similarity-theory model

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39e6c474d8dc2c874bfb09e64551a0bc
https://doi.org/10.1002/we.1829

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Wind conditions and resource assessment

Autor: Ib Troen, Erik Lundtang Petersen

Publikováno v: Wiley Interdisciplinary Reviews: Energy and Environment. 1:206-217

The development of wind power as a competitive energy source requires resource assessment of increasing accuracy and detail (including not only the long-term ‘raw’ wind resource, but also turbulence, shear, and extremes), and in areas of increasi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1664117c938162a2783a5375f317ceaa
https://doi.org/10.1002/wene.4

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Weibull-k Revisited: 'Tall' Profiles and Height Variation of Wind Statistics

Autor: Mark C. Kelly, Ib Troen, Hans Ejsing Jørgensen

Publikováno v: Kelly, M C, Troen, I & Ejsing Jørgensen, H 2014, ' Weibull-k Revisited: “Tall” Profiles and Height Variation of Wind Statistics ', Boundary-Layer Meteorology, vol. 152, no. 1, pp. 107-124 . https://doi.org/10.1007/s10546-014-9915-5

The Weibull distribution is commonly used to describe climatological wind-speed distributions in the atmospheric boundary layer. While vertical profiles of mean wind speed in the atmospheric boundary layer have received significant attention, the var

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c833a9c736b06c7fef2b9c7f3d7acdf1
https://orbit.dtu.dk/en/publications/a02668c2-92d1-42b0-aa41-6087276f3d36

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The new European wind atlas

Autor: Erik Lundtang Petersen, Ib Troen, Hans Ejsing Jørgensen, Jakob Mann

Publikováno v: Lundtang Petersen, E, Troen, I, Ejsing Jørgensen, H & Mann, J 2014, ' The new European wind atlas ' Energy Bulletin, no. 17, pp. 34-39 .
Technical University of Denmark Orbit

Today a number of well-established models and methodologies exist for estimating resources and design parameters, and in many cases they work well. This is true if good local data are available for calibrating the models or for verification. But the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::21a773f97e5d559040c9f52b1f27c5a3
http://orbit.dtu.dk/ws/files/101935926/Energy_Bulletin_17_2014.pdf

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Surface-layer flow in complex terrain: Comparison of models and full-scale observations

Autor: John L. Walmsley, P. J. Mason, Ib Troen, Demetrius P. Lalas

Publikováno v: Boundary-Layer Meteorology. 52:259-281

Four models of surface boundary-layer flow in complex terrain are compared with observations made at Blashaval Hill, North Uist, Scotland. The field experiment is described by Mason and King (1985). Three of the models are derived from the two-dimens

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45643bb41ceb618698863538b2fca6d7
https://doi.org/10.1007/bf00122090

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Response of neutral boundary layers to changes of roughness

Autor: Niels Gylling Mortensen, Ib Troen, Anna Maria Sempreviva, Søren Ejling Larsen

Publikováno v: Boundary-Layer Meteorology. 50:205-225

When air blows across a change in surface roughness, an internal boundary layer (IBL) develops within which the wind adapts to the new surface. This process is well described for short fetches, > 1 km. However, few data exist for large fetches on how

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e928a9d8bb1025382be92bf7944fba71
https://doi.org/10.1007/bf00120525

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Wind Atlas Analysis and Application Program: WAsP 7 Help Facility

Autor: Niels Gylling Mortensen, Heathfield, D. N., Lars Landberg, Ole Rathmann, Ib Troen, Erik Lundtang Petersen

Publikováno v: Mortensen, N G, Heathfield, D N, Landberg, L, Rathmann, O, Troen, I & Lundtang Petersen, E 2001, Wind Atlas Analysis and Application Program: WAsP 7 Help Facility . Risø National Laboratory, Roskilde .
Technical University of Denmark Orbit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d83aa3028ae12e7577aa148ce34a7588
https://orbit.dtu.dk/en/publications/7124847d-88a1-4481-b426-383b3a9f9f56

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An observational study of the structure of the nocturnal boundary layer

Autor: B. B. Stankov, Donald H. Lenschow, Larry Mahrt, R. C. Heald, IB Troen

Publikováno v: Boundary-Layer Meteorology. 17:247-264

In an effort to describe the basic vertical structure of the nocturnal boundary layer, observations from four experiments are analyzed. During the night, the depth of significant cooling appears to increase with time while the depth of the turbulence

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a70f78b3c9e1708430bf1c2b82b9cb94
https://doi.org/10.1007/bf00117983

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