Читать книгу Hydraulic Fluid Power - Andrea Vacca - Страница 79

The ISO schematic of the system can be represented by the figure below. Note that the pilot line is represented as dashed line, according to the standard of representation.

1 QOR can be simply calculated by using the orifice equation (4.5), being the Δp across the orifice given by the problem data

2 The power dissipated is calculated from Eq. (4.8):

3 The temperature rise experienced by the fluid through the orifice can be estimated from Eq. (4.9), under the assumption that the entire heat dissipation increases the internal energy of the fluid