| 摘要 |
The evaporator is equipped with: an inlet-side space (Sp1) of the space in a leeward-side upper tank (44), into which a refrigerant flows from a refrigerant inflow port (14a); and an inlet-side turn path (Tn1) connected to the inlet-side space (Sp1). The ratio (AT1/Ain) of the total passage cross-sectional area (AT1) of a group of tubes (41) constituting the inlet-side turn path (Tn1) to the inlet passage cross-sectional area (Ain) of the refrigerant inflow port (14a) is set to 3.5 or less, and the ratio (Lg1/Din) of the longitudinal length (Lg1) of the inlet-side space (Sp1) to the inlet equivalent diameter (Din) of the refrigerant inflow port (14a) is set to 25 or less. Further, the Reynolds number (Re) of the refrigerant flowing into the inlet-side turn path (Tn1) is set to 1800 or more. Thus, in the evaporator in which the liquid phase refrigerant separated by a gas-liquid separator is guided to the refrigerant inflow port side, the occurrence of temperature distribution in cooled fluid can be suppressed. |
