No abstract

No abstract

The mathematical model of plate heat exchanger (PHE) is developed using decomposition of the plate on its main corrugated field, which cause major effect on heat transfer, and distribution zone, which influences mostly the hydraulic performance. Model is validated on experimental data for some commercial plates. It is shown, that for specified pressure drop, temperature program and heat load the geometrical parameters of plate and its corrugations, which are enable to make PHE with minimal heat transfer area, can be found. The developed mathematical model can be used for designing of plates with geometry, which is in the best way satisfying process conditions of the certain specific range. The case study for conditions of PHE application in District Heating systems is presented.

No abstract

h i g h l i g h t s The analysis of turbulent flow in channels of PHEs. The analysis of the Prandtl number influence on heat transfer in PHE is performed. The semi-empirical model of turbulent heat transfer inside PHEs channels is proposed. The proposed model enables to design the PHEs for different duties.