A review on current status of capacity control techniques for two-phase ejectors

Autor: Stefan Elbel, Jacek Smolka, Martin Ryhl Kærn, Paride Gullo, Michal Haida
Rok vydání: 2020
Předmět:
bepress|Engineering
Computer science
engrXiv|Engineering|Mechanical Engineering|Fluid Mechanics
020209 energy
Control (management)
bepress|Engineering|Mechanical Engineering
engrXiv|Engineering|Mechanical Engineering
02 engineering and technology
law.invention
020401 chemical engineering
law
Multi-ejector
Needle ejector
HVAC
0202 electrical engineering
electronic engineering
information engineering
Expansion work recovery
SDG 7 - Affordable and Clean Energy
0204 chemical engineering
Vortex ejector
business.industry
Mechanical Engineering
Refrigeration
Building and Construction
engrXiv|Engineering|Mechanical Engineering|Energy Systems
Vapour-compression system
Reliability engineering
Power (physics)
Capacity control
engrXiv|Engineering
Work (electrical)
Air conditioning
Ventilation (architecture)
bepress|Engineering|Aerospace Engineering|Aerodynamics and Fluid Mechanics
business
bepress|Engineering|Mechanical Engineering|Energy Systems
Efficient energy use
Zdroj: Gullo, P, Kærn, M R, Haida, M, Smolka, J & Elbel, S 2020, ' A review on current status of capacity control techniques for two-phase ejectors ', International Journal of Refrigeration, vol. 119, pp. 64-79 . https://doi.org/10.1016/j.ijrefrig.2020.07.014
International Journal of Refrigeration
ISSN: 0140-7007
DOI: 10.1016/j.ijrefrig.2020.07.014
Popis: The adoption of highly efficient vapour-compression refrigeration, air conditioning and heat pump (RACHP) systems is compulsory to achieve a low-carbon society. Expansion work recovery using a two-phase ejector is widely recognized as one of the most promising measures to improve the energy efficiency of RACHP units. This holds true for all operation conditions provided that an effective capacity control technique is implemented. In this work a thorough critical review on the current status of the presently available capacity control techniques for two-phase ejectors was carried out. In addition, their pros and cons as well as the comparison of their performance were reported. It was concluded that two-phase ejectors can be properly capacity controlled in large- and medium-scale vapour-compression units. However, a suitable capacity control mechanism for small-scale vapour-compression solutions still requires a major breakthrough and is being intensively discussed among experts in the field.
https://doi.org/10.1016/j.ijrefrig.2020.07.014
Databáze: OpenAIRE
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