A significant top quality worry about respect to cooling agents is their pureness. The dampness web content in the cooling agent is of terrific value because way too much dampness can trigger significant functional issues. Water can get in a system via sub-quality cooling agents throughout top-up.
Excessive dampness in refrigeration systems might result in the list below problems:
Freeze ups
Freeze ups happen when dampness grabbed by the cooling agent begins to ice up, developing ice crystals that obstruct the refrigerant flow in slim passages, as an example in the development shutoff. This result is called periodic air conditioning, as the compressor quits eventually because of the obstruction in the development shutoff. It begins once more when the ice crystals have actually thawed as well as permit the cooling agent to go through once more. This is a periodical procedure of consistent cold as well as melting of the dampness inside the system, triggering a high regularity of stop/start for the compressor.
Corrosion
Moisture can trigger rust. However, dampness in mix with a HCFC cooling agent consisting of chlorine (like as an example R-22 or R-409A) produces far more significant rust, as the chlorine hydrolyses with the water to develop hydrochloric acid (HCl) which is hostile to a lot of steels. Heat includes dramatically to the issue by speeding up the acid-forming procedure. For HFC cooling agents (like R-404A or R-407C), it is the polyolester oils that are really hygroscopic as well as might break down at heats creating hydrofluoric acid with the dampness which might be presented to the system via a sub-standard cooling agent.
Sludge development
Acid web content inside a system can emulsify with the compressor oil to develop a hostile oil sludge that minimizes lubrication buildings. This can result in significant compressor damages. Sludge can additionally trigger a range of various other issues in a system, such as obstructions of filters, development shutoffs as well as various other small flows.
Quality
The issues provided above do not typically occur overnight, however accumulate gradually if permitted to by wrong cooling agent handling by the ship’s staff. A system malfunction is expensive as well as time consuming, specifically if it leads to a loss of cooling agent fee. The system will certainly be fixed as well as return right into procedure, however the fixing does not get rid of the source of the issue. It is as a result crucial that cooling agents follow ideal top quality criteria when it come to pureness as well as structure.
As the rates for even more eco-friendly choices are greater than typical cooling agents like R-22, R-401A or R-409A it is been afraid that there will certainly be a lot more situations in the future where neighborhood business reduced edges on top quality as well as supply partially complete cyndrical tubes.
In order to ensure hassle-free as well as risk-free procedure of onboard refrigeration equipment, all Unicool cooling agents provided by Wilhelmsen Ships Service throughout the globe follow the ARI 700-2006 requirement that specifies as well as standards the pureness as well as structure of these compounds.
