The amount of refrigerant charge needed in a heat pump or refrigeration
system varies with the load and working conditions of the system. In order to
make systems flexible, receivers are used to store excess refrigerant. This
receiver is typically placed after the condenser, such that it is fed with
liquid from the condenser.
When modelling a heat pump or refrigeration system it is usually assumed
that the state of the refrigerant is saturated out of the receiver, since both
liquid and vapour are present in the receiver. However this also assumes
MSK (Maskinmesterskolen København) has a test facility equipped with
temperature and pressure sensors in the receiver as well as sight glasses for
visual inspections. Preliminary measurements show that subcooled refrigerant
can exit the receiver. The hypothesis is that thermodynamic equilibrium is not attained
in the receiver.
The project aims at investigating the subcooling in the condenser and
receiver by modelling and experimental investigations.
For more information please contact Wiebke Brix Markussen (email@example.com).
According to the personal preferences of the candidate, topic and extend of
the work can be adjusted.