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    • 1. 发明授权
    • Fuel mixing control for fuel cell power plants operating on multiple fuels
    • 用于燃料电池发电厂的燃料混合控制,用于多种燃料
    • US06890671B2
    • 2005-05-10
    • US10324454
    • 2002-12-19
    • Robert P. RochePaul R. MargiottJohn C. Trocciola
    • Robert P. RochePaul R. MargiottJohn C. Trocciola
    • C01B3/02H01M8/04H01M8/06H02J20060101
    • H01M8/04089H01M8/0612Y02E70/20
    • Fuel mixing control arrangements are provided for fuel cell power plants (10) operating on multiple fuels (22, 24, 26). A fuel delivery system (16) supplies hydrogen-rich fuel (20) to the cell stack assembly (CSA) (12) after controlled mixing of a primary fuel (22) and at least a secondary fuel (24), each having a respective “equivalent hydrogen (H2) content”. The relative amounts of the primary fuel (22) and secondary fuel (24) mixed are regulated (18, 34, 36) to provide at least a minimum level (LL) of hydrogen-rich fuel having an equivalent hydrogen content sufficient for normal operation of the CSA (12). The primary fuel (22) is a bio-gas or the like having a limited, possibly variable, equivalent H2 content, and the secondary fuel (22) has a greater and relatively constant equivalent H2 content and is mixed with the primary fuel in an economic, constant relationship that assures adequate performance of the CSA (12). One or more parameters (IDC, P, V, E. C.) of the operating power plant (10) related to the equivalent H2 content of at least the primary fuel may be sensed (72, 26, 78, 84, 176) and used to control (18, 36) the relative amounts of secondary and primary fuels (22, 24) mixed in response thereto.
    • 为燃料电池发电厂(10)提供燃料混合控制装置,燃料电池发电厂(10)在多种燃料(22,24,26)上运行。 燃料输送系统(16)在主燃料(22)和至少二级燃料(24)的受控混合之后,向细胞堆叠组件(CSA)(12)供应富氢燃料(20) “等同氢(H 2 N 2)含量”。 调节混合的主燃料(22)和二次燃料(24)的相对量(18,34,36)以提供具有足够正常操作的等效氢含量的至少最低水平(LL)的富氢燃料 的CSA(12)。 主要燃料(22)是具有有限的,可能变化的等同H 2 O 2含量的生物气体等,并且二次燃料(22)具有更大且相对恒定的等效H 2含量, 与主要燃料混合,经济,不断的关系,确保CSA的充分表现(12)。 可以感测与至少主要燃料的等效H 2 N 2含量有关的工作电厂(10)的一个或多个参数(IDC,P,V,EC)(72,26,78 ,84,176),并且用于控制(18,36)响应于此混合的二级和一级燃料(22,24)的相对量。