Prakasarao, MS and Radhakrishnan, SR (1963) A study of hourly wind speeds at Visakhapatnam from the point of view of of wind power utilisation. Technical Report. National Aeronautical Laboratory, Bangalore, India.
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Abstract
The hourly wind speeds at Visakhapatnam for the period13; 1958-60 have been analysed from the point of view of extracting power from the wind. Frequencies and cumulative frequencies of different wind speeds during the different months and the year have been worked out and used to estimate the amount of energy that can be extracted by a wind electric generator under certain assumptions. Durations of spells of low wind, and the mean diurnal variation of wind during each month have been discussed. The annual mean wind speed at Visakhapatnam works out to 8 km.p.h., the high est value being 40 :m.p.h. with a corresponding frequency value of 2. The annual output of a wind electric generator of swept area 30 sq.m. and 12 per cent overall power13; coefficient is 992 kwh. The amount of dater that can be pumped in a year by a direct- acting windmill with 23.6 sq.m. swept area and 12 percent overall power coefficient works out to 33,460 kl. (7,361,200 gal.).
| Item Type: | Monograph (Technical Report) |
|---|---|
| Uncontrolled Keywords: | Electric generator;Wind speeds |
| Subjects: | GEOSCIENCES > Energy Production and Conversion |
| Depositing User: | M/S ICAST NAL |
| Date Deposited: | 21 Dec 2006 |
| Last Modified: | 24 May 2010 04:24 |
| URI: | http://nal-ir.nal.res.in/id/eprint/3819 |
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