Heat radiation measurement method for high pressure oxy-fuel combustion [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 658.42 Top management
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Office of the Assistant Secretary of Energy for Fossil Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2018
• Mô tả vật lý: Size: p. 191-196 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 268012
• Chủ đề: 1. 01 coal, lignite, and peat; 2. 20 fossil-fueled power plants; 3. Heat flux; 4. Oxy-fuel combustion; 5. Radiation

Tóm tắt

This paper describes a novel cost effective narrow-beam radiometer what was designed to measure incident heat flux at a specific location in high temperature and high pressure combustor. Beyond the radiometer the whole measurement assembly contains a water cooled plate for cold background, a high pressure window transparent for visible and IR radiation and a radiometer position/angle adjustment tool. The thermopile based radiometer measures the total heat radiation in a wavelength range of 0.6 to 8 �m. A special view tube was developed for decreasing the view angle to 0.35�, what angle was dictated by the dimensions of the combustor and the associated port sizes. Here, calibration curves were measured using a high temperature black body calibrator and the uncertainty of the measurement was evaluated. Although the presented radiant heat flux measurement method was developed for a specific combustor, it can be easily implemented for various combustion applications as well.