Refrigeration Plant

The whole refrigeration plant from cycle to overhaul: refrigerants, compressor, condenser and evaporator, expansion valves, controls and safeties, oil management, watchkeeping, troubleshooting, air conditioning and safety.

12 Topics In this Sub-topic

Refrigeration Plant

Refrigeration Plant Topics

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01 Refrigeration Principles and the Vapour Compression Cycle One idea runs the whole plant: a fluid changes state at a temperature fixed by its pressure. Intermediate · 24 min read · 10 sections 02 Refrigerants On a ship the refrigerant is both the working fluid and the main hazard. Intermediate · 22 min read · 7 sections 03 The Refrigeration Compressor The only major moving component in the circuit — where most of the maintenance and nearly all of the noise lives. Advanced · 30 min read · 9 sections 04 Condensers, Evaporators and Heat Transfer Most "the plant is not cooling" complaints are heat exchanger complaints — a dirty condenser, a frosted evaporator, an air-locked coil. Advanced · 32 min read · 6 sections 05 Expansion Valves and Liquid Level Control The device most often blamed and most often mis-adjusted on a ship — every type in use, and the diagnostic logic for each. Advanced · 34 min read · 8 sections 06 Controls, Safety Devices and Circuit Components The compressor and the four main components do the work; everything here decides when they do it and what stops them when something is wrong. Advanced · 40 min read · 10 sections 07 Oil in Refrigerant Systems The component most often neglected and the one that causes the most subtle faults — oil that stays in the compressor is doing its job. Advanced · 30 min read · 11 sections 08 System Operation, Watchkeeping and Shipboard Procedures Automatic plant still needs a watchkeeper — the log sheet is what turns a running machine into a monitored one. Intermediate · 26 min read · 14 sections 09 Troubleshooting and Fault-Finding First decide whether the load changed or the plant changed — that single question splits every refrigeration fault in two. Advanced · 30 min read · 5 sections 10 Air Conditioning Same plant, different objective — the target is human comfort, so humidity matters as much as temperature. Intermediate · 26 min read · 8 sections 11 Maintenance, Overhaul, Inspection and Repair Planned work, scheduled and recorded — the object is to prevent the fault, not to find it. Advanced · 28 min read · 10 sections 12 Safety and Emergencies Every refrigerant is a hazard, but the hazard is different for each one — know the fluid before you open anything. Intermediate · 24 min read · 12 sections