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Modelling of solar irradiance for sizing global and perpetual solar-powered unmanned aerial vehicle (uav)_Muhammad Hazim Masral

Modelling of solar irradiance for sizing global and perpetual solar-powered unmanned aerial vehicle (uav)_ Muhammad Hazim Masral_A2_MYMY
There are various applications of small unmanned aerial vehicle for both military and civil aviation in recent years. The opportunity to enhance of solar-powered UAV capabilities to operate as pseudolite satellite enables all countries around the world an endless possibility of their own technology. However, weight and power restriction are always the main cause which limits UAV to operate as pseudolite satellite. The aim of this work is to bridge the knowledge gap in the area of perpetual flight across regions around the world for a yearlong operation. Through this study, focus has been given 1) to study both local and global solar modelling and 2) how these solar data may enable the possibilities of developing a UAV design capable of global operation. In this study, for local solar modelling, 14 variant proposed models are studied with its relevant parameters using the regression technique. Then, as for global solar modelling, the theoretical approach has been used to study twelve cities spreading all over the world. The performance of each proposed solar model in estimating the solar irradiance (SI) for Malaysia is analysed based on its Root Mean Square Error (RMSE), Coefficient of Determination (R2) and Mean Bias Error (MBE). Finally, the analyses carried out to understand the feasibility of a perpetual solar-powered UAV operated around the world have been simulated. Here, the two modes of study include 1) AUAV; the yearly average solar data simulation to design solar-powered UAV suitable for operation at each city, and 2) GUAV; a single optimized solar-powered UAV design that is capable for operation in all cities investigated in this work. Proposed Model (PM) 12 had been recommended as solar estimation model for Malaysia, the result showed that the RMSE for the model is 0.856%, MBE0.282% and R2 is 0.988. An optimum design specification for Global UAV (GUAV) successfully to simulate perpetual flight for whole year with specification of Maximum Take-Off Weight (MTOW) 0.5057 kg, Wingspan (S) 2.03 m and Solar Wing Area Ratio (SWAR) 40%. Based on Global SI data year 2013, we able to estimate the best diffuse factor value for Malaysia, which is 60.8% by using interpolation method.Keywords-component; global solar irradiance; meteorology station data; clouds cover; temperature; wind speed; gust speed; rain precipitate; relative humidity, pressure, regression method; UAV; pseudolite; weight; sizing configuration. ___________________________________________________________________________________ Sejak kebelakangan ini terdapat pelbagai aplikasi kenderaan kecil udara tanpa pemandu untuk kedua-dua penerbangan tentera dan awam.Peluang untuk meningkatkan keupayaan UAV berkuasa solar untuk beroperasi seperti satelit sebagai pseudolite. Walau bagaimanapun, berat dan sekatan kuasa sentiasa menjadi punca utama yang menghadkan UAV untuk beroperasi sebagai menyerupai satelit.Tujuan kajian ini adalah untuk merapatkan jurang ilmu di dalam bidang penerbangan berterusan di seluruh rantau di seluruh dunia untuk operasi selama setahun. Melalui kajian ini, tumpuan telah diberikan 1) untuk mengkaji model solar tempatan dan global serta 2) bagaimana data solar mungkin membolehkan kemungkinan membangunkan reka bentuk UAV bagi operasi global.Dalam kajian ini, untuk pemodelan solar tempatan, 14 model telah diusul dan dikaji dengan parameter yang berkaitan menggunakan teknik regresi. Untuk permodelan sinaran global, pendekatan secara teoritikal digunakan untuk menkaji kesemua dua belas bandar. Prestasi setiap model solar yang dicadangkan dalam menganggarkan sinaran suria untuk Malaysia dianalisa berdasarkan Ralat Relatif Min Square (RMSE), Pekali Penentu(R2) dan Min Ralat Pincangan (MBE).Analisis secara simulasi telah dilaksanakan bagi memahami kemampuan untuk penerbangan kekal bagi peasawat tanpa pemandu. Di sini, terdapat 2 jenis kajian 1) AUAV; simulasi data solar tahunan purata untuk reka bentuk UAV solar yang sesuai untuk operasi di setiap bandar-bandar, dan 2) GUAV; satu UAV yang dioptimumkan reka bentuknya yang mampu untuk beroperasi di semua bandar. Model yang ke 12 telah di cadangkan sebagai model bagi Malaysia, dengan penemuan RMSE 0.856%, MBE 0.282% dan R2 0.988. Specifikasi untuk pesawat tanpa pemandu global yang telah disimulasi sepanjang tahun adalah, 0.5057 kg bagi Berat Berlepas Maksima, Panjang Kepak 2.03 m dan Nisbah KawasanSayap sekitar 40%. Berdasarkan sinaran suria global bagi tahun 2013, kami berjaya mengenal pasti faktor resapan bagi Malaysia adalah 60.8% dengan mengunakan teknik interpolasi Kata kunci; radiasi solar global; data jabatan meterologi; awan; suhu; kelajuan angina; kelajuan tiupan; hujan; lembapan; tekanan; kaedah regresi; kapal terbang tanpa pemandul; beban; konfigurasi saiz
Contributor(s):
Muhammad Hazim Masral - Author
Primary Item Type:
Thesis
Identifiers:
Accession Number : 875008375
Language:
English
Subject Keywords:
UAV capabilities; Coefficient of Determination (R2); global solar irradiance
Sponsor - Description:
Pusat Pengajian Kejuruteraan Aeroangkasa -
First presented to the public:
12/1/2016
Original Publication Date:
10/7/2019
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Aerospace Engineering
Citation:
Extents:
Number of Pages - 114
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2019-10-07 15:23:55.947
Date Last Updated
2020-11-19 10:00:12.01
Submitter:
Mohamed Yunus Yusof

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Modelling of solar irradiance for sizing global and perpetual solar-powered unmanned aerial vehicle (uav)_Muhammad Hazim Masral1 2019-10-07 15:23:55.947