Open AccessMathematical model of compact type evaporator
Author(s) -
M.B. Borovicka,
Tomáš Hyhlík
Publication year - 2018
Publication title -
epj web of conferences
Language(s) - English
Resource type - Journals
eISSN - 2101-6275
pISSN - 2100-014X
DOI - 10.1051/epjconf/201818002012
Subject(s) - evaporator , refrigerant , matlab , heat transfer , thermal expansion valve , mechanical engineering , mechanics , computational fluid dynamics , mass transfer , computer science , simulation , thermodynamics , engineering , heat exchanger , physics , operating system
In this paper, development of the mathematical model for evaporator used in heat pump circuits is covered, with focus on air dehumidification application. Main target of this ad-hoc numerical model is to simulate heat and mass transfer in evaporator for prescribed inlet conditions and different geometrical parameters. Simplified 2D mathematical model is developed in MATLAB SW. Solvers for multiple heat and mass transfer problems - plate surface temperature, condensate film temperature, local heat and mass transfer coefficients, refrigerant temperature distribution, humid air enthalpy change are included as subprocedures of this model. An automatic procedure of data transfer is developed in order to use results of MATLAB model in more complex simulation within commercial CFD code. In the end, Proper Orthogonal Decomposition (POD) method is introduced and implemented into MATLAB model.