Investigation of Heat Dissipation Efficiency of the Liquid-Cooled Spring Lamp
To Anh Duc *
Vietnam National Space Center, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam.
Bui Hung Thang
Institute of Materials Science (IMS), Vietnam Academy of Science and Technology (VAST), A2 Building, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi 122102, Vietnam.
Bui Anh Tuan
Institute of Materials Science (IMS), Vietnam Academy of Science and Technology (VAST), A2 Building, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi 122102, Vietnam.
Mai Thi Phuong
Institute of Materials Science (IMS), Vietnam Academy of Science and Technology (VAST), A2 Building, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi 122102, Vietnam.
Phan Ngoc Minh
Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Vietnam.
Bui Huy
Institute of Materials Science (IMS), Vietnam Academy of Science and Technology (VAST), A2 Building, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi 122102, Vietnam.
*Author to whom correspondence should be addressed.
Abstract
In this article, the results that we have obtained from our experiments with the heat dissipation process of the liquid-cooled spring lamp are presented. Our measurements clearly demonstrated that using liquid as a coolant did enhance the efficiency of the heat dissipation process, as the temperatures of the LED chips reduced by 16 degrees compared with normal spring lamps, which do not use coolant. Because of this decline in temperature, the average lifetime of the chips is increased by approximately 367%. In addition to that, the liquid that we used in our experiments (silicone oil) has high transparency and thus does not have any negative impacts on the brightness of the LED chips.
Keywords: Spring lamp, coolant, lifetime, LED chips, durability