Parallel Combined Quartz Lamp Heater and Its Radiant Heating Performance
Received:July 17, 2024  Revised:December 15, 2024
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DOI:10.7643/issn.1672-9242.2025.01.009
KeyWord:quartz lamp heater  radiant heating  heat flux  heat protection test  aerodynamic heat  high speed vehicle
                    
AuthorInstitution
ZHOU Fa Beijing Key Laboratory of Arc Plasma Application Equipment, China Academy of Aerospace Aerodynamics, Beijing , China
LIN Guosheng Beijing Key Laboratory of Arc Plasma Application Equipment, China Academy of Aerospace Aerodynamics, Beijing , China
LIU Xiang Beijing Key Laboratory of Arc Plasma Application Equipment, China Academy of Aerospace Aerodynamics, Beijing , China
ZHANG Minli Beijing Key Laboratory of Arc Plasma Application Equipment, China Academy of Aerospace Aerodynamics, Beijing , China
CHEN Haiqun Beijing Key Laboratory of Arc Plasma Application Equipment, China Academy of Aerospace Aerodynamics, Beijing , China
OU Dongbin Beijing Key Laboratory of Arc Plasma Application Equipment, China Academy of Aerospace Aerodynamics, Beijing , China
MA Handong Beijing Key Laboratory of Arc Plasma Application Equipment, China Academy of Aerospace Aerodynamics, Beijing , China
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Abstract:
      The work aims to study the effectiveness of radiant heating of material surfaces by quartz lamp heaters for ground simulation of thermal load on aircraft surfaces. In this paper, a parallel combined quartz lamp heater was designed and developed, and a radiant heating experiment was conducted for a kind of 200 mm×200 mm flat plate material with the parallel combined quartz lamp heater. Through a series of experiments, the heat flux of different distances between the heater's radiant surface and the flat plate was obtained, as well as the correlation characteristics of the heater's heat flux to a certain point of the flat plate and the heater's electrical parameters.The heat flux and temperature at a certain point of the flat plate were taken as the control variables respectively, which could be controlled by tracking a preset heat flux curve and temperature curve. The results showed that the parallel combined quartz lamp heater developed in this paper could be used in either one single group or two groups in parallel. Both types of heaters could form a stable radiant heating region on the surface of the flat plate, and the average temperature gradient from the center to the edge of the radiant heating region was 8 ℃/cm and 3.3 ℃/cm respectively. The temperature inhomogeneity was 3.14% and 1.27% respectively.The tracking response of the surface heat flux of the flat plate could be controlled in milliseconds, and the control accuracy was kept within1%. The heater also could realize the dynamic tracking and control of the temperature at a certain point, which control accuracy was affected by the material characteristics and had a certain deviation. In conclusion, there is an approximate linear relationship between the heat flux of the quartz lamp heater and the heater power at a certain point of the flat plate.The parallel combined quartz lamp heater can achieve a better uniform and stable heating zone. It can also realize dynamic tracking control of heat flux and temperature at a certain point in the radiant heating zone.
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