Diploma in Marine Refrigeration Systems
Why this certificate program?
The Diploma in Maritime Refrigeration Systems
This program provides you with the knowledge and practical skills necessary to successfully design, operate, and maintain refrigeration systems used in the marine industry. Learn about thermodynamic cycles, components, refrigerants, regulations, and best practices to ensure efficient and safe onboard refrigeration.
Differential Advantages
- Specialized Knowledge: Master the fundamental principles of refrigeration applied to vessels.
- Equipment Design and Selection: Learn to size and choose the appropriate components for each application.
- Preventive and Corrective Maintenance: Acquire the skills to troubleshoot and extend the lifespan of systems.
- Regulations and Safety: Familiarize yourself with international regulations and standards related to marine refrigeration.
- Case Studies and Simulations: Apply your knowledge in real-world scenarios and improve your problem-solving skills.
- Modality: Online
- Level: Diplomado
- Hours: 800 H
- Start date: 11-06-2026
Availability: 1 in stock
Who is it aimed at?
- Naval engineers and marine mechanics seeking to specialize in refrigeration systems used on vessels.
- Refrigeration and air conditioning technicians interested in applying their knowledge to the maritime environment and its specific challenges.
- Onboard maintenance personnel wishing to deepen their knowledge of the operation and repair of marine refrigeration equipment.
- Supervisors and chief engineers seeking to optimize the performance and energy efficiency of refrigeration systems.
- Engineering students and students in related technical fields aspiring to a career in the shipbuilding industry and the refrigeration sector.
Flexibility for maritime professionals
Tailored to the demands of the sector: accessible online content, practical cases focused on navigation, and personalized tutorials to answer questions.
Objectives and competencies

Diagnosing and repairing faults in marine refrigeration systems:
“Identify defective components using technical diagrams and diagnostic equipment, replacing them with approved spare parts and verifying correct operation post-repair.”

Optimizing the performance and energy efficiency of marine refrigeration systems:
Implement predictive control and proactive maintenance strategies based on data analysis to minimize energy consumption and prevent critical system failures.

Select and install appropriate cooling components for marine vessels:
“Considering the necessary refrigeration capacity, available space, energy efficiency, maritime regulations (SOLAS, MARPOL) and resistance to marine corrosion.”

Comply with the safety and environmental regulations applicable to marine refrigeration:
“Manage refrigerants according to current regulations (F-Gas, Montreal), minimize leaks, and follow emergency response protocols for environmental incidents.”

Manage preventive and corrective maintenance of refrigeration systems in maritime environments:
“Identify common faults, diagnose root causes, repair/replace critical components (compressors, heat exchangers, pumps) and optimize energy efficiency.”

Monitor the operation and control of refrigeration systems on board ships:
Ensuring energy efficiency, preventive and corrective maintenance, and regulatory compliance, by managing resources and technical personnel.
Curriculum - Modules
- Comprehensive Maritime Incident Management: protocols, roles, and chain of command for coordinated response
- Operational Planning and Execution: briefing, routes, weather windows, and go/no-go criteria
- Rapid Risk Assessment: criticality matrix, scene control, and decision-making under pressure
- Operational Communication: VHF/GMDSS, standardized reports, and inter-agency liaison
- Tactical Mobility and Safe Boarding: RHIB maneuvers, approach, mooring, and recovery
- Equipment and Technologies: PPE, signaling, satellite tracking, and field data logging
- Immediate Care of the Affected: primary assessment, hypothermia, trauma, and stabilization for evacuation
- Adverse Environmental Conditions: swell, Visibility, flows, and operational mitigation
Simulation and training: critical scenarios, use of VR/AR, and exercises with performance metrics
Documentation and continuous improvement: lessons learned, indicators (MTTA/MTTR), and SOP updates
- Introduction to Thermodynamics: basic concepts, laws, and units
- Pure substances: properties, phase diagrams, and thermodynamic tables
- Ideal and real gases: equations of state, compressibility, and mixtures
- First Law of Thermodynamics: energy balances in closed and open systems
- Second Law of Thermodynamics: entropy, irreversibility, and thermodynamic cycles
- Carnot cycle: efficiency, limitations, and theoretical applications
- Vapor-compression refrigeration cycles: components, processes, and COP
- Refrigerants: types, properties, environmental impact, and regulations
- Compressors: types, operating principles, and selection
- Evaporators and Condensers: Design, Efficiency, and Heat Exchange
‘
- Introduction to Thermodynamics: Basic Concepts, Systems, and Laws.
- Thermodynamic Properties of Refrigerants: Tables and Diagrams.
- Thermodynamic Cycles of Refrigeration: Carnot, Rankine, and Real Cycles.
- Main Components of a Refrigeration System: Compressors, Condensers, Evaporators, and Expansion Valves.
- Refrigerants: Classification, Environmental Impact, and Current Regulations.
- Calculation of Thermal Loads in Marine Applications: Refrigerated Spaces and Air Conditioning.
- Energy Efficiency in Refrigeration Systems: COP, EER, and SEER.
- Exergetic Analysis of Refrigeration Systems: Loss Identification and Optimization.
- Energy Management on ships: energy saving strategies and monitoring.
- Regulations and standards on energy efficiency in marine refrigeration.
‘
- Fundamentals of Thermodynamics: laws, properties of substances, thermodynamic processes
- Refrigeration: refrigeration cycles, system components, Mollier diagrams
- Refrigerants: types, properties, environmental impact (GWP, ODP), regulations (F-Gas)
- Refrigeration Systems on Ships: air conditioning, refrigeration of provisions, refrigeration of cargo
- Energy Efficiency in Refrigeration Systems: cycle optimization, heat recovery
- Thermal Insulation: materials, thickness calculations, heat loss reduction
- Heat Pumps: operating principles, applications on ships, efficiency
- Maintenance of Refrigeration Systems: leak detection, refrigerant charging, best practices Practical exercises
- Regulations and safety: handling of refrigerants, workplace safety, risk prevention
- Case studies: analysis of refrigeration systems in different types of ships
‘
- Introduction to Thermodynamics: basic concepts, systems, properties
- First Law of Thermodynamics: internal energy, enthalpy, heat, work
- Second Law of Thermodynamics: entropy, irreversibility, thermodynamic cycles
- Pure Substances: phase diagrams, tables of thermodynamic properties
- Ideal and Real Gases: equations of state, compressibility
- Gas Power Cycles: Carnot, Otto, Diesel, Brayton
- Refrigeration Cycles: Reverse Carnot, vapor compression, absorption
- Refrigerants: properties, classification, environmental impact (ODP, GWP)
- Refrigeration Equipment: compressors, condensers, evaporators, expansion valves
- Applications of thermodynamics and refrigeration in marine systems: HVAC, cargo refrigeration, etc.
‘
- System Architecture and Components: Structural design, materials, and subsystems (mechanical, electrical, electronic, and fluid) with selection and assembly criteria for marine environments
- Fundamentals and Principles of Operation: Physical and engineering foundations (thermodynamics, fluid mechanics, electricity, control, and materials) that explain performance and operating limits
- Safety and Environmental (SHE): Risk analysis, PPE, LOTO, hazardous atmospheres, spill and waste management, and emergency response plans
- Applicable Regulations and Standards: IMO/ISO/IEC requirements and local regulations;
- Conformance criteria, certification, and best practices for operation and maintenance
- Inspection, testing, and diagnostics: Visual/dimensional inspection, functional testing, data analysis, and predictive techniques (vibration, thermography, fluid analysis) to identify root causes
- Preventive and predictive maintenance: Hourly/cycle/seasonal plans, lubrication, adjustments, calibrations, consumable replacement, post-service verification, and operational reliability
- Instrumentation, tools, and metrology: Measuring and testing equipment, diagnostic software, calibration and traceability; selection criteria, safe use, and storage
- Onboard integration and interfaces: Mechanical, electrical, fluid, and data compatibility; Sealing and watertightness, EMC/EMI, corrosion protection, and interoperability testing.
Quality, acceptance testing, and commissioning: process and materials control, FAT/SAT, bench and sea trials, go/no-go criteria, and evidence documentation.
Technical documentation and integrated practice: logs, checklists, reports, and a complete case study (safety → diagnosis → intervention → verification → report) applicable to any system.
- Introduction to Thermodynamics: Basic Concepts, Systems, Properties
- The Laws of Thermodynamics: First, Second, and Third Laws, Applications
- Pure Substances: Phase Diagrams, Thermodynamic Properties
- Ideal and Real Gases: Equations of State, Compressibility
- Thermodynamic Cycles: Carnot, Rankine, Refrigeration
- Refrigerants: Properties, Classification, Environmental Impact
- Components of a Refrigeration System: Compressor, Condenser, Evaporator, Expansion Valve
- Compressors: Types, Operation, Efficiency
- Condensers and Evaporators: Design, Types, Efficiency
- Expansion Valves: Types, Regulation, Control
‘
Career opportunities
- Onboard Refrigeration Technician: Maintenance, repair, and installation of refrigeration systems on merchant, fishing, and passenger ships.
- Port Service Technician: Diagnosis and repair of refrigeration systems on refrigerated containers and vessels in ports.
- Marine Refrigeration System Designer: Participation in the creation and improvement of efficient and safe refrigeration systems for vessels.
- Marine Refrigeration Technical Consultant: Advising shipping companies and shipyards on the selection, installation, and maintenance of refrigeration equipment.
- Refrigeration System Inspector: Verification of compliance with regulations and safety standards for onboard refrigeration systems.
- Salesperson/Technical Representative: Promotion and sale of refrigeration equipment and systems to companies in the maritime sector.
- Fleet Maintenance Manager: Supervision and coordination of refrigeration system maintenance across a fleet of vessels.
- Research and Development: Participation in innovation projects to improve the efficiency and sustainability of marine refrigeration.
“`
Admission requirements

Academic/professional profile:
Degree/Bachelor's degree in Nautical Science/Maritime Transport, Naval/Marine Engineering, or a related field; or proven professional experience in bridge/operations.

Language proficiency:
Recommended functional maritime English (SMCP) for simulations and technical materials.

Documentation:
Updated resume, copy of degree or seaman's book, ID card/passport, letter of motivation.

Technical requirements (for online):
Equipment with camera/microphone, stable connection, ≥ 24” monitor recommended for ECDIS/Radar-ARPA.
Admission process and dates

1. Online
application
(form + documents).

2. Academic review and interview
(profile/objectives/schedule compatibility).

3. Admission decision
(+ scholarship proposal if applicable).

4. Reservation of place
(deposit) and registration.

5. Induction
(access to campus, calendars, simulator guides).
Scholarships and grants
- Master Onboard Refrigeration: Learn the fundamentals, technologies, and key regulations to ensure the operability and efficiency of onboard systems.
- Design and Maintenance: Delve into the design, calculation, and selection of equipment, as well as predictive and corrective maintenance techniques.
- Energy Efficiency and Sustainability: Implement strategies to optimize energy consumption and reduce the environmental impact of marine refrigeration systems.
- Safety and Regulations: Understand international regulations, safety protocols, and best practices for operating refrigeration systems safely and responsibly.
- Case Studies and Simulations: Apply your acquired knowledge through real-world case studies and interactive simulations, developing problem-solving skills.
Testimonials
This diploma program provided me with the tools and knowledge necessary to diagnose and solve complex problems in marine refrigeration systems. Thanks to the practical and theoretical training, I was able to optimize the performance of the refrigeration systems on my vessel, reducing failures by 30% and improving energy efficiency by 15%.
The Diploma in Naval Mechanics & Workshop exceeded my expectations. I acquired solid theoretical and practical knowledge, from the design and construction to the maintenance of vessels. The practical classes in the workshop and the simulations were key to my professional development. Today I feel prepared to face the challenges of the naval industry with confidence and efficiency.
This diploma program provided me with the tools and knowledge necessary to diagnose and solve complex problems in marine refrigeration systems. Thanks to the practical training and the depth of the course’s theory, I was promoted to Refrigeration Supervisor, optimizing the performance of the systems in my company and significantly reducing refrigerated cargo losses.
“This diploma program exceeded my expectations. I acquired a solid theoretical and practical knowledge of different marine refrigeration systems, including their design, operation, maintenance, and troubleshooting. The hands-on experience with simulators and real equipment allowed me to apply what I learned and develop the skills necessary to perform efficiently in the sector.”
Frequently asked questions
The main focus is to provide students with the knowledge and skills necessary to operate, maintain, and repair refrigeration systems on merchant ships, fishing vessels, and other boats.
Yes. The itinerary includes ECDIS/Radar-ARPA/BRM with harbor, ocean, fog, storm, and SAR scenarios.
Online with live sessions; hybrid option for simulator/practical placements through agreements.
Maritime sector, specifically the area of refrigeration and air conditioning in vessels.
Recommended functional SMCP. We offer support materials for standard phraseology.
Yes, with a relevant degree or experience in maritime/port operations. The admissions interview will confirm suitability.
Optional (3–6 months) through Companies & Collaborations and the Alumni Network.
Simulator practice (rubrics), defeat plans, SOPs, checklists, micro-tests and applied TFM.
A degree from Navalis Magna University + operational portfolio (tracks, SOPs, reports and KPIs) useful for audits and employment.
- Fundamentals of Thermodynamics: basic concepts, laws, thermodynamic systems.
- Properties of Refrigerants: characteristics, classification, environmental impact (GWP and ODP).
- Thermodynamic Refrigeration Cycles: vapor compression, absorption, other cycles.
- Components of a Refrigeration System: compressors, condensers, evaporators, expansion valves.
- Refrigerant Selection: technical, economic, and environmental criteria.
- Energy Efficiency in Refrigeration Systems: COP, EER, SEER, influencing factors.
- Thermal Insulation: types, properties, thickness calculations, applications in refrigeration and air conditioning.
- Refrigerant Recovery and Reuse: procedures, equipment, regulations.
- Regulations and Standards: RITE, F-Gas, other relevant regulations.
- Energy Audits in Refrigeration Systems: methodologies, tools, report preparation.
Alternatives to conventional refrigerants.
‘
Request information
Complete the Application Form.
Attach your CV/degree certificate (if you have it to hand).
Indicate your preferred cohort (January/May/September) and whether you would like the hybrid option with simulator sessions.
An academic advisor will contact you within 24–48 hours to guide you through the admission process, scholarships, and compatibility with your professional schedule.
Faculty
Eng. Tomás Riera
Full Professor
Eng. Tomás Riera
Full Professor
Eng. Sofía Marquina
Full Professor
Eng. Sofía Marquina
Full Professor
Eng. Javier Bañuls
Full Professor
Eng. Javier Bañuls
Full Professor
Dr. Nuria Llobregat
Full Professor
Dr. Nuria Llobregat
Full Professor
Dr. Pau Ferrer
Full Professor
Dr. Pau Ferrer
Full Professor
Cap. Javier Abaroa (MCA)
Full Professor
Cap. Javier Abaroa (MCA)
Full Professor