2013-2-27 Closed System(Control mass) A system that always contains the same matter (same mass). No transfer of mass across its boundary can occur. Isolated system:special type of closed system that does not interact in any way with its surroundings (no energy crosses its boundary) 131 iven reo A given region flows. Mass may cross the boundary of a CV Boundary of CV is called Control Surface(real or imaginary) Automobile ir Engine 1-322013-2-27 16 Closed System (Control mass) ►A system that always contains the same matter (same mass). ►No transfer of mass across its boundary can occur. ►Isolated system: special type of closed system that does not interact in any way with its surroundings (no energy crosses its boundary) 1- 31 Control Volume (Open System) ►A given region of space through which mass flows. ►Mass may cross the boundary of a CV ►Boundary of CV is called Control Surface (real or imaginary) 1-32 Automobile Engine