Experimental Study of Onset of Nucleate Boiling in Vertical Rectangular Channels with Different Flow Path Heights

Table 2

Parameters and experimental range of two test sections.

	Channel a	Channel b
Size (mm)	1.8 × 60.0 × 610.0	2.8 × 60.0 × 610.0
Hydraulic diameter, (mm)	3.50	5.35
Pressure, p (MPa)	0.145	0.145
Mass flux, G (kg/(m^2·s))	100, 200, and 300	100, 200, and 300
Inlet temperature, (°C)	70–100	70–100
Heat flux, q (kW/m^2)	10–70	10–70