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Multiple modes of a natural circulation evaporator

机译:自然循环蒸发器的多种模式

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The system behaviour of an open single tube, steam heated natural circulation evaporator has been investigated at heating steam pressures up to 0.44 MPa and different subcoolings of the process medium water. In the studied range of parameters, diverse operational states occurred which have been recognized for the first time as geysering coupled with manometer oscillation as well as first, second and third orders of density wave oscillation of type I. Due to the strong nonlinear behaviour of the system, up to three states appear in certain ranges of parameter constellations. By defined setting of initial conditions and distinct perturbations of the system, the individual states can be set.
机译:已经研究了开放式单管蒸汽加热自然循环蒸发器在加热蒸汽压力高达0.44 MPa和过程介质水的不同过冷度下的系统性能。在所研究的参数范围内,出现了多种运行状态,这些状态首次被识别为间歇泉与压力计振荡以及I型密度波振荡的第一,第二和第三阶。在系统中,参数星座的某些范围内最多出现三种状态。通过定义初始条件设置和系统的明显扰动,可以设置各个状态。

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