NGHIÊN CỨU THỰC NGHIỆM ĐỘNG CƠ SAVONIUS PHÁT ĐIỆN CHIẾU SÁNG THE UNIVERSITY OF DANANG, JOURNAL OF SCIENCE AND TECHNOLOGY, NO 6(79) 2014, VOL 1 77 EXPERIMENTAL RESEARCH ON SAVONIUS TURBINES FOR LIGHTIN[.]
THE UNIVERSITY OF DANANG, JOURNAL OF SCIENCE AND TECHNOLOGY, NO 6(79).2014, VOL 77 EXPERIMENTAL RESEARCH ON SAVONIUS TURBINES FOR LIGHTING IN ACCORDANCE WITH WIND POWER ALONG THE COAST OF DANANG NGHIÊN CỨU THỰC NGHIỆM ĐỘNG CƠ SAVONIUS PHÁT ĐIỆN CHIẾU SÁNG PHÙ HỢP VỚI NĂNG LƯỢNG GIÓ DỌC THEO BỜ BIỂN THÀNH PHỐ ĐÀ NẴNG Pham Duy Vu The University of Danang, University of Science and Technology, Email: phamduyvubk@gmail.com Abstract - Research of illuminated generator engine using wind energy in accordance with the wind speed range along the coast of Danang is the goal of the study The author has successfully designed and manufactured illuminated generator engine that is suitable for wind speeds along the coast between Danang City (3 ÷ 8,5)m/s Fabricated Savonius turbines: wing two- storey type with ratio of two- storey height is 2:1, 1:1 and wing one-storey type The experimental results show wing two-story type with height ratio of 1:1 is the most efficient and rotor diameter d = 416mm suitable for crowded places like resorts and beaches along the coast In particular, we have successfully fabricated generators in accordance with the structure of the Savonius type with capacity N = 15W Tóm tắt - Nghiên cứu động phát điện chiếu sáng phù hợp với dải tốc độ gió dọc theo bờ biền Thành phố Đà Nẵng mục tiêu nghiên cứu Tác giả báo thiết kế chế tạo thành công động phát điện chiếu sáng phù hợp với tốc độ gió dọc theo bờ biển Thành phố Đà Nẵng khoảng (3 ÷ 8,5) m/s Chúng tơi chế tạo động gió Savonius kiểu tầng cánh với tỉ lệ chiều cao tầng 2:1, 1:1 kiểu tầng Kết thực nghiệm cho thấy loại tầng cánh với tỉ lệ chiều cao 1:1 có hiệu suất cao đường kính cánh quạt d = 416mm phù hợp với nơi đông người khu resort, bãi tắm dọc theo bờ biển Đặc biệt, chế tạo thành công máy phát điện phù hợp với kết cấu kiểu quạt gió Savonius đạt hiệu suất trung bình với cơng suất N =15 W Key words - savonius engine; renewable energy; wind energy; wind turbine efficiency; electric motor Từ khóa - động Savonius; lượng tái tạo; lượng gió; hiệu suất quạt gió; động phát điện Introduction Research of efficiently use of renewable energy suitable for the locality is one of the criteria for sustainable development of Danang City Such renewable energy sources as solar energy, wind energy, biogas and biomass are being studied for applications; particularly, the production of electrical power from solar energy, wind energy is the prior interest Currently, there is no lighting source along the coast and coastal rescue stations in Danang, which significantly affects the development of marine tourism and the safety of tourists Therefore, the research and manufacture of generators using wind energy suitable for lighting system along the coast is useful and practical Manufacturing equipment should be in conformity with the installation location along the coast (where there are many passers-by), easy to install or dismount in case of storms and ensure the safety of tourists Besides, the installation of wind turbines in tourist sites also makes people aware of energy saving and creates scenic beauty of the tourist city we choose the Savonius wind turbine (Figure 1) to use wind energy for lighting This type of turbine is conformable with average wind velocity in Danang City [1] v = 3.3 m/s, and can be easily installed or dismounted without causing any noise and pollution Research Method 2.1 Theoretical Basis of Selecting Wind Turbine Currently, horizontal-axis wind turbines and verticalaxis wind turbines are commonly used in the world Horizontal-axis wind turbines are conformable with the wind velocity from 10 to 17 m/s [4] and often stationed far from residential areas due to their large diameter propellers and loud noise Vertical-axis wind turbines is conformable with low wind velocity (