Abstrakt
In the paper presented are the issues related to the design and operation
of micro heat exchangers, where phase changes can occur, applicable to the
domestic micro combined heat and power (CHP) unit. Analysed is the
stability of the two-phase flow in such unit. A simple hydraulic model
presented in the paper enables for the stability analysis of the system
and analysis of disturbance propagation caused by a jump change of the
flow rate. Equations of the system dynamics as well as properties of the
working fluid are strongly non-linear. A proposed model can be applicable
in designing the system of flow control in micro heat exchangers operating
in the considered CHP unit.
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