摘要:
In a combustion chamber, a gaseous or liquid fuel is injected as a secondary flow into a gaseous, channelized main flow. The main flow is directed to pass over a plurality of vortex generators (9) arranged side by side over the width or circumference of the channel (20) through which the flow passes. The height (h) of the vortex generators is at least 50% of the height (H) of the channel through which the flow passes or of that part of the channel associated with the vortex generators. The secondary flow is introduced into the channel (20) in the immediate vicinity of the vortex generators (9). Longitudinal vortices without any recirculation region are produced in the channel through which the flow passes by means of the new static mixer. Extraordinarily short mixing distances, with a low pressure loss at the same time, are thus achieved in a combustion chamber according to the invention.
摘要:
In a rotor of a pressure wave machine, rotor cells (2) are evenly distributed at its periphery, these rotor cells being intended to accept two gaseous media during operation for the purpose of compressing the first by means of pressure waves of the second medium. The rotor cells are arranged in such a way that they extend in a plane normal to the axis of rotation of the rotor (1).
摘要:
A combustion device for hydrogen-rich gas is provided. Before entering a chamber, fuel and air are non-premixed for avoiding flushback. A vortex generator and a fuel sprayer are combined to mix fuel and air for enhancing burning effect. Vortex flame is generated with stabilizing aerodynamics of flow provided through vortex breakdown. A flameholder is formed downstream an injector to maintain stable combustion. Cooling air is introduced from a sheath to cool down a high-temperature gas, which leaves the combustion chamber and drives a turbine for turning a power generator. Thus, the present invention effectively mixes fuel and air, avoids flushback and prevents combustor damage.
摘要:
A material is fabricated for capturing CO2 at mid-high temperature. The material is a layered material containing Ca, Al carbonates. A higher ratio of Ca to Al helps capturing CO2. The temperature for capturing CO2 is around 600° C. The material can even release CO2 at a high temperature. Thus, the material can process looping cycles of carbonation and decarbonization at a CO2 carbonation scale of 45% gCO2/g.
摘要:
A technique of fabricating a medium-high temperature CO2 sorbent of layered nano-carbonate is provided. A CO2 sorbent is fabricated. The sorbent captures CO2 at a medium-high temperature above 600° C. Calcium acetate is introduced for making a nano-scale layered double hydroxide (LDH). The layered structure is used for templated synthesis. The sorbent has an initial conversion rate above 90%; and the conversion rate remains the same even after 100 times of carbonation/de-carbonation cycles.
摘要:
By adhering substrates in a fuel cell into a substrate set and stacking the substrate sets into a fuel cell stack, a large space for chemical reaction in the stack is formed, and a space required for the stack is greatly saved.
摘要:
The present invention is a simulator used in initial system integration tests of a SOFC to test peripheral components with saved costs by replacing the costly SOFC with the simulator.
摘要:
A combustion chamber with two-stage combustion has primary burners (110) of the premix type of construction, in which the fuel injected via nozzles (117) is intensively mixed with the combustion air inside a premix space (115) prior to ignition. The primary burners are of flame-stabilizing design, i.e. they are designed without a mechanical flame retention baffle. They are provided with tangential inflow of the combustion air into the premix space (115). Arranged downstream of a precombustion chamber (61) are secondary burners (150) which are designed as premix burners which do not operate by themselves.
摘要:
In a fuel supply system with premixing combustion, a gaseous and/or liquid fuel is introduced as a secondary flow into a gaseous, ducted main flow. The secondary flow has a substantially smaller mass flow than the main flow. The main flow is guided via vortex generators (9) of which a plurality are arranged adjacent to one another over the periphery of the duct (20), through which flow takes place, on at least one duct wall. The secondary flow is fed into the duct (20) in the immediate region of the vortex generators (9). A vortex generator (9) has three surfaces around which flow takes place freely, which surfaces extend in the flow direction, one of them forming the top surface (10) and the two others forming the side surfaces (11, 13). The fuel is fed into the duct from nozzles which are located before, behind or in the vortex generator.
摘要:
A mixing chamber for introducing a gaseous secondary flow into a gaseous, ducted main flow includes a plurality of vortex generators to facilitate mixing of the flows. The secondary main flow has a substantially smaller mass flow than the main flow. The main flow is guided via the plurality of vortex generators arranged adjacent to one another over the width or the periphery of the duct through which flow takes place. The height (h) of the vortex generators is at least 50% of the height (H) of the duct through which flow takes place. The secondary flow is fed into the duct in the immediate region of tile vortex generators. The mixing chamber according to the invention exhibits extraordinarily short mixing distances in the mixing chamber with a simultaneously low pressure loss.