Turboexpander

（重定向自Turbo expander）

Figure 2: A schematic diagram of a demethanizer extracting hydrocarbon liquids from natural gas.

Figure 3: Schematic diagram of power generation system using a turboexpander.

Figure 4: Schematic diagram of a refrigeration system using a turboexpander, compressor and a motor.

A turboexpander, also referred to as a turbo-expander or an expansion turbine, is a centrifugal or axial flow turbine through which a high pressure gas is expanded to produce work that is often used to drive a compressor.

Because work is extracted from the expanding high pressure gas, the expansion is approximated by an isentropic process (i.e., a constant entropy process) and the low pressure exhaust gas from the turbine is at a very low temperature, −150 °C or less depending upon the operating pressure and gas properties. Partial liquefaction of the expanded gas is not uncommon.

单词	Turbo expander
释义	Turbo expander 英语百科 Turboexpander （重定向自Turbo expander） A turboexpander, also referred to as a turbo-expander or an expansion turbine, is a centrifugal or axial flow turbine through which a high pressure gas is expanded to produce work that is often used to drive a compressor. Because work is extracted from the expanding high pressure gas, the expansion is approximated by an isentropic process (i.e., a constant entropy process) and the low pressure exhaust gas from the turbine is at a very low temperature, −150 °C or less depending upon the operating pressure and gas properties. Partial liquefaction of the expanded gas is not uncommon.
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