Experimental study of nucleate boiling on surface of cooling channel of silicon crystal

摘要

Heat transfer experiments were carried out to investigate the boiling characteristics of LN2 in a narrow channel made by silicon crystal, which simulated one of the cooling channels of the first crystal of DXM. Heat transfer coefficients in nucleate boiling and DNB heat fluxes in the narrow channel were obtained and compared with some existing correlations. These values are used in the numerical simulation to calculate the thermal distortion of the crystal more accurately.