The UNITEST Reefer3D Engine Room Simulator is based on an engine room equipped with medium-sized engine room (four-stroke medium speed engine with reduction gear and controllable pitch propeller). The simulator is a new, extended version of MED3D software and is focused on cargo refrigeration plant.
Refrigeration plants on vessels play a vital part in carrying refrigerated cargo and provisions for the crew on board. In reefer ships, temperature sensitive cargo such as food, chemicals or liquefied gas is controlled in a very precise way.
The simulator is designated for training Marine Engineers, students of maritime academies as well as different types of marine vocational training centres.

Model description

• three (3) main compressors,
• three (3) condensers,
• three (3) liquid vessels,
• twelve (12) refrigeration chambers,
• control monitoring system.

The main purpose of the simulator is practical preparation of trainees for refrigeration system operation, and more particularly:

• refrigeration plant starting procedure,
• familiarization with typical problems/faults occurring in cargo refrigeration plant,
• familiarization with the engine room installation (electric power plant system, compressed air system, fresh and sea water cooling system, lubricating and fuel oil system, cargo refrigeration system),
• acknowledgment with diesel generators, thrusters and auxiliary equipment starting procedure,
• propulsion system manoeuvring.

To meet the requirements

• Section A-1/12 and Section B-1/12,
• ISM Code: Section 6 and Section 8.

Plants overview

All operations in UNITEST Reefer3D simulator can be done in specific system installation and compartments. Each system is presented as a real vessel’s schematic drawings/compartment with ability to control on screen. The most important components of the scheme can be zoomed and sent to a proper location in Engine Room to operate.

UNITEST Reefer3D faults simulation possibilities:

• Iced evaporators,
• Dirty filter before evaporators,
• Evaporators fan damage,
• Dirty floor under the gratings,
• Loading in the sun,
• Rotting of bananas,
• Rapid increase in the temperature of the cargo,
• Air in the condenser,
• Dirty condensers,
• Dirty filter driers,
• Loss of the refrigerant.

UNITEST Reefer3D main features:

• The operator has the possibility to go through a cargo cooling process. The operator can change the condition of the cooling process (actual cooling chamber load, fans speed, number of refrigeration compressors, etc.).

• During the cooling/freezing process, the operator can monitor the number of parameters such as: DAT – delivery air temperature, RAT – return air temperature, overheating of refrigerant, compressor suction and discharge pressure and temperature.

• The compressor’s capacity can be controlled in auto local manual mode.

• De-frosting of evaporator can be done with hot freon.
• Daily routines such as check of freon and lube oil levels are simulated.
• Highly realistic simulator for engine room training. All engines and propulsion plant behaviours are based on real respond. To create the impression of working in a real environment, it provides 3D sound which can be listened to on 2, 4 or more speakers.
• The mathematical model simulates an engine room with Medium speed, 4-stroke, reversible, turbocharged and intercooled diesel engine with direct injection of fuel.
• All vital auxiliary systems have been implemented.
• Operations related to drivers’ subsystems including valves operations and all auxiliary equipment (pumps, coolers, filtration units, etc.).
• Learning the engine room’s typical operating routines.
• Engine room operation training. The user will have the possibility to accomplish any operational task starting from different set-ups, both pre-prepared and saved by the user.
• Corrective action learning when faults occur. Different faults can be simulated and mixed in the run-time or loaded from disk.