Submission
Experimental Investigation Of Fully Passive Thermally Driven Two-Phase Injector Pump
DOI: 10.18462/iir.compr.2021.0426
Session: Ejectors and centrifugal compressors 2
Accept state: Submission accepted
Authors
| Name | Organization | |
|---|---|---|
| Andrzej Pawluczuk, M.Sc | Bialystok University of Technology, Faculty of Mechanical Engineering, Bialystok, Poland | |
| Dariusz Butrymowicz, Prof. | Bialystok University of Technology, Faculty of Mechanical Engineering, Bialystok, Poland | |
| Kamil Smierciew, PhD DSc | Bialystok University of Technology, Faculty of Mechanical Engineering, Bialystok, Poland | |
| Jerzy Gagan, PhD | Bialystok University of Technology, Faculty of Mechanical Engineering, Bialystok, Poland |
Abstract
Energy required to drive a mechanical pump in thermally driven systems in most of the cases is a few percent of the overall energy balance of the system. The most important problem is to select of a commercially available liquid pump for the thermal driven cycle. Mechanical liquid pump is the only element of the refrigeration system that consume electric power. It is desirable that the whole system would be fully thermal driven one, without consumption of electric power to drive. Two-phase vapour-liquid ejectors may be thought as required alternative. They are using vapour that is generated already in the system; operates as pre-heater of liquid phase supplied to the vapour generator that additionally improve the system efficiency; and have no moving parts. Paper deals with experimental investigation of operation of the fully passive system with two-phase vapour-liquid injector as a liquid pump in refrigeration systems.
Keywords
Injector,
compression efficiency,
fully thermally driven system,
ejection refrigeration system,
refrigerants,
two-phase ejector