Investigation of parameters of an instrument for measuring high-temperature heat fluxes

Results of an experimental investigation of an instrument for measuring high-temperature heat fluxes with a density up to 800 kW/m² are presented.Notation q_inc, Q_inc incident heat flux density - A, , B, , x dimensionless parameters - T_a adiabatic combustion temperature of fuel - H_i instantaneous height of furnace chamber - H full height of furnace chamber - T_f temperature of gases at the furnace outlet - T_f increment in the temperature of gases at the furnace outlet - a_f emissivity of furnace - T_f temperature of flame - ₀ Stefan—Boltzmann constant - T temperature on the heat pipe body - Q supplied power - E_rad sensitivity of sensor - D hourly rate of fuel supplied to the boiler furnace - timeAcademic Scientific Complex A. V. Luikov Institute of Heat and Mass Transfer of the Academy of Sciences of Belarus, Minsk. I. I. Polzunov Central Boiler and Turbine Institute, St. Petersburg. Scientific and Technical Center Flame-Complex, Ust'-Ilimsk. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 64, No. 3, pp. 324–329, March, 1993