Local NH<sub>3</sub> condensation in a plate heat exchanger

Conference paper (2018)

Authors

X. Toa Engineering Thermodynamics - Mechanical, Maritime and Materials Engineering
E. Dahlgren Student
C.A. Infante Ferreira Engineering Thermodynamics - Mechanical, Maritime and Materials Engineering
Research Group
Engineering Thermodynamics (Mechanical, Maritime and Materials Engineering) (TU Delft)
Heat transfer Condensation Plate heat exchanger NH3 Local measurement
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Published Date

2018

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Process and Energy

Research Group

Engineering Thermodynamics

Abstract

The availability of open source experimental data of NH3 condensation within plate heat exchangers (PHEs) is very limited. This work attempts to extend the database. For this purpose step by step experiments are carried out in a setup capable of local measurements. Temperature sensors have been installed along a PHE to obtain the temperature profile. The local heat flux and the heat transfer coefficient (HTC) are then calculated from the energy balances. Condensation of NH3 has been investigated with varying vapor quality at different mass fluxes. The experimental results are compared with the heat transfer models developed for the condensation of NH3 in tubes and for the condensation of HFCs in PHEs.