Estimation of averaging time model based on approximate downscaling of stationary typhoon parameters

Date

6-2015

Degree

Bachelor of Science in Civil Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

edidiah Joel C. Aguirre

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

Several International Standards suggest the use of ten-minute average wind speed for calculation of extreme load under weather condition for wind turbines and offshore structure, however there is little or no available ten-minute average wind speed data. This study addresses this unavailability of data measured from 1 hour to 6 hours into ten-minute wind speed data. In this study, the average time model was employed by approximating the downscaled stationary parameters every ten minutes. The set of equations was derived using the procedure of Solomon (2011) with a modification which incorporates the method of Ding and Tang (1989). All tropical cyclones from 1970-2012 in the Asia-Pacific region were used to produce the equations. Tropical cyclones used were also assumed to be at least greater than or equal to 64 km/h but less than or equal to 220 km/h having a return period of not less than 50 years. The set of equations can be used by substituting the average time (M) in the produced equations to create a correction factor to be added to a given data set. This study is limited to linear and algorithmic model only. The produced set of equations can only be used in Asia South Pacific Region, with averaging time within 10 min < M ≤ 360 min range.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2015 E63 /E26

Document Type

Thesis

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