COMPRESSOR AND METHOD FOR COMPRESSING GASEOUS FUEL

摘要

A method for compressing gaseous fuel is disclosed, which comprises the steps: a) ingesting gaseous fuel into a chamber; b) ingesting air into the chamber and mixing the gaseous fuel with the air; c) igniting and partially combusting the resulting mixture of gaseous fuel and air in a confined space such that a predominant fraction of the gaseous fuel is not combusted, causing an increased temperature and therefore an increased pressure of the fraction of the gaseous fuel which is not combusted; and d) discharging the resulting compressed gaseous fuel. Moreover, a compressor (1) is provided, comprising a casing (2), a rotor (3) with at least three vanes (6), at least one inlet (7) for gaseous fuel, at least one outlet (11) for gaseous fuel, at least one air inlet (9) and at least one igniter (14). The rotor (3) is placed in the casing (2) such that at least three variable-volume chambers (15, 16, 17) part-bounded by the vanes (6) are formed during a rotor revolution, the inlet (7) for gaseous fuel is placed in the casing (2) such that the inlet (7) for gaseous fuel is connected to a first location where a chamber (15) has an increasing volume during a revolution of the rotor (3), the air inlet (9) and the igniter (14) are placed in the casing (2) in a second location where a chamber (16) has an increasing, decreasing or constant volume during a revolution of the rotor (3), and the outlet (11) for gaseous fuel is placed in the casing in a third location where a chamber (17) has a decreasing volume during a revolution of the rotor (3). Furthermore, a gas turbine comprising an inventive compressor (1) is disclosed.