Abstract:
Device for heating a fluid that can be used notably in a rocket launcher to pressurize a liquefied rocket fuel. According to the invention, this device comprises a first burner (21) that performs a first combustion between a limiting rocket fuel (L1) and an excess of rocket fuel (E), and a first exchanger unit (10, 31) in which first burnt gases (B1) emanating from said first combustion give up heat to the fluid (F); it further comprises at least one second burner (22) into which the first burnt gases (B1) on the one hand, and limiting rocket fuel (L2) on the other are injected in order to perform a second combustion between the limiting rocket fuel (L2) and at least some of the unburnt excess rocket fuel present in the first burnt gases (B1); the second burnt gases (B2) emanating from said second combustion flow through a second exchanger unit (10, 32) to give up heat to the fluid (F); the burnt gases (B1, B2) emanating from each of the combustions flow through tubes for burnt gases (31, 32) within the same overall exchanger (10) made up of said exchanger units (10, 31, 32) in which overall exchanger they give up heat to the fluid (F), this fluid flowing between the tubes for burnt gases (31, 32).
Abstract:
A method for producing steam while concurrently reducing emissions. The method includes combusting fuel and an oxidant stream having a high concentration of oxygen in a combustion zone having multiple combustion chambers and heat exchangers to produce a flue gas. The flue gas is subsequently cleaned in a dry flue gas cleaning chamber by contacting it with a dry adsorbent. In one embodiment, the method advantageously regenerates the dry adsorbent so that the dry adsorbent can be subsequently recycled back into the dry gas flue chamber.
Abstract:
The invention relates to a combustor (1) for a gas turbine engine, particularly for a gas turbine having sequential combustion. The combustor (1) comprises a combustor wall (4) defining a mixing region (5) and a combustion region (6). The mixing region (5) comprises at least one first inlet (2) for introducing combustion air into the mixing region (5) and at least one second inlet for introducing fuel into the mixing region (5), the combustion region (6) extending downstream of the mixing region. The mixing region (5) crossing over to the combustion region (6) in a transition region (14). A baffle (9) extends from the transition region (14) generally in the downstream direction (15) forming at least one space (10) between the combustor wall (4) and the baffle (9).
Abstract:
A two-stage fuel nozzle assembly (56) for a gas turbine engine. The primary combustion region (120) is centrally positioned and includes a fuel injector (122) that is surrounded by one or more swirl chambers (132, 160) to provide a fuel air mixture that is ignited to define a first stage combustion zone. A secondary combustion region is provided by an annular housing (168) that surrounds the primary combustion region (120) and it includes a secondary fuel injector (126) having a radially-outwardly-directed opening (172) and surrounded by an annular ring (128) that includes openings (194) for providing a swirl chamber for the secondary combustion region (124). Cooling air is directed angularly between the primary and secondary combustion zones to delay intermixing and thereby allow more complete combustion of the respective zones prior to their coalescing further downstream. The primary combustion region (120) is activated during idle and low engine power conditions, and both the primary (120) and secondary (124) combustion regions are activated during high engine power conditions.
Abstract:
Die Erfindung betrifft einen (1) katalytischen Brenner mit Brennmittel- und Luftzuführeinrichtungen mit mindestens einem Katalysator (3) und kühlmitteldurchflossenen Wandteilen (4,5), wobei die Wärmeübertragung des ersten Katalysators auf die Wandteile im wesentlichen durch Strahlung erfolgt.
Abstract:
Die Erfindung betrifft einen (1) katalytischen Brenner mit Brennmittel- und Luftzuführeinrichtungen mit mindestens einem Katalysator (3) und kühlmitteldurchflossenen Wandteilen (4,5), wobei die Wärmeübertragung des ersten Katalysators auf die Wandteile im wesentlichen durch Strahlung erfolgt.