3. Evaporator power supply
Whatever the refrigeration distribution method, the evaporator can be supplied with refrigerant by direct injection or liquid, thus flooding the exchanger. There are two configurations of the "flooded" exchanger: regorgement or recirculation.
3.1 Direct injection
With direct injection, the refrigerant is introduced directly into the evaporator after the expansion valve. It then contains a certain proportion of vapor (generally between 15 and 20% by mass, depending on the compression ratio). In the evaporator, it is completely evaporated and superheated, so that no liquid refrigerant remains at the compressor intake. If this were not the case, liquid hammering could occur (§
The Ultimate Scientific and Technical Reference
This article is included in
Industrial cooling
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Evaporator power supply
Evaporating pressure setting
Bibliography
Also in our database
Standards and norms
- Refrigerants – Safety designation and classification - ISO 817 - 2014
- Systèmes frigorifiques et pompes à chaleur partie 1, 2, 3 et 4 - NF EN 378-1-2-3-4 - 2017
Regulations
EU Regulation No. 517/2014 of the European Parliament, of April 16, 2014 on fluorinated greenhouse gases and repealing Regulation (EC) No. 842/2006.
Directory
Organizations – Federations – Associations (non-exhaustive list)
AFF Association française du Froid https://aff-froid.com/
IIF Institut international du Froid http://www.iifiir.org/fr
SNEFCA Syndicat national des Entreprises du Froid,...
The Ultimate Scientific and Technical Reference
