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2.1 Aufbereitung und Veröffentlichung der Belastungsgrade und Verzöge- rungszeiten . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.2 Nutzung der Belastungsgrade und Verzögerungszeiten [...] Kardinalskala als metrisch und Merkmale einer Nominal- /Ordinalskala als kategorial bezeichnet. Nominal- und Ordinalskalen sind geeignet um qualitative Daten zu erfassen. 1 1 Technische und inhaltliche Erweiterung [...] Wissenschaftsorganisationen ist „die digitale und für Forschende nutzungs- rechtlich möglichst beschränkungs-, entgelt- und barrierefreie Verfügbarkeit und prinzipielle Nachnutzbarkeit von Publikationen
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(Source: WindPRO®3.0) As two different turbines with 25m and 50m hub heights have been used, the wind direction graph at these heights has been generated. As it is seen in Figure 23 the predominant wind [...] of one year has been shown. The most prevalent wind speeds are between 6-8 m/s at 25m height and 7-9 m/s at 50m height. This means that the most commonly occurring wind speed is quite high in Durness and [...] both sites. Hub height selection plays an important role in the energy generation from a WTG. For instance, for Enercon turbines it was observed that an increase of 23.3 m in the hub height would slightly
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2.5 meters dam height. We can establish from the same figure that the most significant amount of additional energy can be achieved with an increase of height from 0 to 0.5 meters. Height of dam till 2 meters [...] vs investment cost for loch with 1 meter height............................................ 32 Figure 7.6.4: NPV vs investment cost for loch with 2 meters height ....................................... [...] 30 Table 7.6.1: Economic results for loch (height: 1m), 2.0% inflation rate .................................... 33 Table 7.6.2: Economic results – loch (height: 2m) – 2.0% inflation rate ..............
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software QuantumGIS. The software measured the contour lines from the Dam at 330 m height to the turbine House at 14 m height. The difference gave a gross head of 316 m. The Figure 6 taken from the software [...] minimum required height above intake, in meters (m) C = 2.3, constant depending on entrance of penstock v = velocity (m/s) d = diameter (m) g = acceleration due to gravity (m/s2 When the height from Gordon’s [...] to profile the ground, virtual ground was constructed by plotting the height from the contour lines along the penstock. The height of the ground above the sea level along the penstock was registered in
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of varying hub heights and rated power. The 50m height restriction is indicated by the horizontal red line. Figure 3-5 Height Consideration Four of the turbines shortlisted meet the height restriction and [...] turbine wind turbine installed at the proposed site, hub height 31m, overall height 44.5m. This scenario was considered because it meets the height restriction at the proposed site. Scenario 4: 330kW Enercon [...] wind turbine installed at the alternative site, hub height 44 m, overall height 61.7 m. This scenario was considered because of the 50m turbine height limitation at the proposed site All costs used in the
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storage tank Annual heat production 4,841 MWh Storage capacity 13.3 MWh/day Volume 390 m3 Diameter 10 m Height 5 m Area of storage tank 78.5 m2 Source: Authors Based on the peak load requirement of the end-users [...] tank Annual heat production 4,841 MWh Storage capacity 13.3 MWh/day Volume 390 m 3 Diameter 10 m Height 5 m Area of storage tank 78.5 m 2 Source: Authors Based on the peak load requirement of the end-users [...] Boiler Table 11 . 600kW Wind Turbine for Horve, Castlebay 600kW Nordex , SÜDWIND S.46/600 - 51.5m, hub height 51.5m Annual heat demand Boiler Wind annual energy output Capacity factor for wind turbine MWh/yr
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850 kW to 14,000 kW. The mean wind speed in South Uist is estimated around 8 to 12 m/s at 75 meters height 38 . The utilization of wind energy for power generation has several 38 Wind power feasibility study
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Page | x LIST OF TABLES Table 2.1. Distributions of Monthly Mean Speeds for 2005 and 2006 at 10 m height................................................................................................. [...] Yell are ideal for electricity generation. In 2005 and 2006, records of wind speeds at 10 meter heights above sea level showed daily averages2 in the range of 6.5ms-1 and 12.5 ms-1. Averages of daily highest [...] 13.5 ms-1 and 24 ms-1 . Table 2.1. Distributions of Monthly Mean Speeds for 2005 and 2006 at 10 m height Monthly Mean Wind Speeds (ms-1) Monthly mean Peak Speeds (ms-1) Months 2005 2006 2005 2006 Jan N/A
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Conditions at Fish hatchery Average Wind Speed 3.9 m/s at 45m height above ground1 (source) Wind shear exponent 0.16 Wind Speed at 10m height 3.1m/s Average atmospheric Pressure 100 kpa Annual average t [...] 4: Site Conditions for Airde Mor 2 Average Wind Speed at 50m height above ground 8.88 m/s Wind shear exponent3 0.16 Wind Speed at 10m height 6.9m/s Average atmospheric Pressure 100 kpa Annual average t [...] Space Administration (NASA) data reveal that Aide Mor has an average annual wind speed of 9m/s at a height of 50m. This speed is indeed higher than the recommendable economically feasible speed of 6m/s for
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monthly average wind speed at the turbine height of 15m is assumed for an average year in Applecross. This also accounts for the fact that wind speed increases with height above ground, as the effect of obstacles [...] .................................................... 21 Figure 3-2: Monthly wind speed data at a height of 15m for Applecross ................................ 22 Figure 3-3: Global horizontal radiation [...] the wind assessment, the wind speed of the South Eastern part along the coast of Applecross at a height of 15 meters was considered. Then during the survey, specific site assessments were conducted in