Noun
(physics, chemistry, engineering) A physical system whose interaction with its environment is limited to particular types of transfer, so that certain quantities are conserved within the system.
(thermodynamics) A system that can exchange heat and work, but not matter, with its surroundings.
Source: en.wiktionary.orgAdditionally, the entire Space Shuttle system, including ground and launch vehicle assets, was designed to work together as a closed system. Source: Internet
Because a rocket, propellant and exhaust in flight, without any external perturbations, may be considered as a closed system, the total momentum is always constant. Source: Internet
For these cases the change in internal energy of a closed system is expressed in a general form by : where is the heat supplied to the system and is the work applied to the system. Source: Internet
Boyle's Law main Boyle's Law, published in 1662, states that, at constant temperature, the product of the pressure and volume of a given mass of an ideal gas in a closed system is always constant. Source: Internet
Circulation Heart anatomy The ostrich heart is a closed system, contractile chamber. Source: Internet
Commodore's was not a completely closed system, however; the company had published detailed specifications for most of their models since the PET and VIC-20 days, and the C64 was no exception. Source: Internet