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If compression is performed by a mechanically driven compressor or blower, this evaporation process is usually referred to as MVR (mechanical vapor recompression). In case of compression performed by high pressure motive steam ejectors , the process is usually called thermocompression , steam compression or ejectocompression .
The sound produced by compressor surge is called turbo flutter and the repeated, high speed cycling will cause a cyclic torque on the compressor and may lead to increased stresses on the bearings and compressor impeller. [2] A blowoff valve is designed to release pressure in the intake system when the throttle is closed.
Discharge pressure (also called high side pressure or head pressure) is the pressure generated on the output side of a gas compressor in a refrigeration or air conditioning system. The discharge pressure is affected by several factors: size and speed of the condenser fan, condition and cleanliness of the condenser coil, and the size of the ...
If the fluid is a liquid, a different type of limiting condition (also known as choked flow) occurs when the venturi effect acting on the liquid flow through the restriction causes a decrease of the liquid pressure beyond the restriction to below that of the liquid's vapor pressure at the prevailing liquid temperature.
Bleed air in aerospace engineering is compressed air taken from the compressor stage of a gas turbine, upstream of its fuel-burning sections.Automatic air supply and cabin pressure controller (ASCPC) valves bleed air from low or high stage engine compressor sections; low stage air is used during high power setting operation, and high stage air is used during descent and other low power setting ...
The largest part of most combustion gas is nitrogen (N 2), water vapor (H 2 O) (except with pure-carbon fuels), and carbon dioxide (CO 2) (except for fuels without carbon); these are not toxic or noxious (although water vapor and carbon dioxide are greenhouse gases that contribute to climate change).
To complete the refrigeration cycle, the refrigerant vapor is routed back into the compressor. The warmer the air that reaches the evaporator, the higher the pressure of the vapor mixture discharged from it and therefore the higher the load placed on the compressor and therefore on the engine to keep the refrigerant flowing through the system.
Compressor surge can be classified into deep surge and mild surge. Compressor surge with negative mass flow rates is considered as deep surge while the one without reverse flows is generally termed mild surge. [2] On a performance map, the stable operating range of a compressor is limited by the surge line.