Hydrocarbon chillers with hydrocarbons used in fruit
Hydrocarbons chiller was selected to minimize the direct impact of global warming from the refrigerant. Using the indirect system of primary refrigerant can be minimized (each circuit, contained 5.5 kg). with chillers placed outside the building risk reduction. Other risks connected with the fact that a leak in the water circuit cannot be vented inside the space where it can form flammable concentration, or that incorrectly trained service technicians can make mistakes, it can be dangerous. These risks are not considered to be difficult to cope with.
The use of indirect system and proper design of the electrical installation on cooler eliminate most of the risks associated with the use of flammable refrigerant. The disadvantage was the introduction of additional heat transfer - if not compensate least in theory, as a result of higher indirect global warming from energy consumption.
With the help of salt brine (potassium acetate) instead of glycols, energy consumption for pumps and extra heat transfer was minimized.
At the same time, factory-assembled indirect systems can often be more closely optimized and more easily controlled, which may lead to an overall improvement in efficiency despite the additional heat transfer and pumps.
The fact that in the refrigerant circuit was compact, the plant manufactured and ease of management was an important factor for increasing reliability and reducing maintenance costs. Reference data/information given this setting comes from Alan Colbourne, from the contractor to the SRS in the UK (SRS). The description is based on information received from the contractor, but as regards the selection of information and interpretations responsibility with the author of this report.
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Refrigerants