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CRAF6019 - Refrigeration Tech

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Title:Refrigeration Tech
Long Title:Refrigeration Technology
Module Code:CRAF6019
 
Duration:1 Semester
Credits: 5
NFQ Level:Fundamental
Field of Study: Craft
Valid From: Semester 1 - 2013/14 ( September 2013 )
Module Delivered in 3 programme(s)
Module Coordinator: MICHAEL HOURIHAN
Module Author: DAVID O RIORDAN
Module Description: This module will introduce the learner to refrigeration and air conditioning (RAC)engineering principles. It will provide the underpinning knowledge of RAC systems required by the wide range of allied diciplines of Mechanical, Technician and the Renewable Energy sectors.
Learning Outcomes
On successful completion of this module the learner will be able to:
LO1 Outline the basic principles of refrigeration and air conditioning vapour compression technology
LO2 Outline the health and safety requirements when handling and storing refrigerant fluids
LO3 Explain the changes that occur to refrigerant fluids as they absorb and reject heat
LO4 Explain the purpose and function of system components, electrical control devices and control circuits
LO5 Complete practical demonstrations of pressure testing, leak testing and safe evacuation procedures of a Refrigeration/Air Conditioning test rigs / coldrooms
LO6 Fault find simulated mechanical and electrical refrigeration systems
Pre-requisite learning
Module Recommendations

This is prior learning (or a practical skill) that is strongly recommended before enrolment in this module. You may enrol in this module if you have not acquired the recommended learning but you will have considerable difficulty in passing (i.e. achieving the learning outcomes of) the module. While the prior learning is expressed as named MTU module(s) it also allows for learning (in another module or modules) which is equivalent to the learning specified in the named module(s).

Incompatible Modules
These are modules which have learning outcomes that are too similar to the learning outcomes of this module. You may not earn additional credit for the same learning and therefore you may not enrol in this module if you have successfully completed any modules in the incompatible list.
No incompatible modules listed
Co-requisite Modules
No Co-requisite modules listed
Requirements

This is prior learning (or a practical skill) that is mandatory before enrolment in this module is allowed. You may not enrol on this module if you have not acquired the learning specified in this section.

No requirements listed
 

Module Content & Assessment

Indicative Content
Vapour Compression System
Principles of heat flow, pressure-temperature relationship, conduction, convection, radiated heat transfer, single stage compression, direct and indirect cooling/heating systems
Health & Safety
Health effects, physical properties of refrigerants, flammability, asphyxiation, ozone depletion EPA (2006), manual handling procedures
Fluid Phase Change
Fluid thermodynamics, Mollier diagrams, heat absorption and heat rejection, saturated, superheated and subcooled fluids
Component Devices and Electrical Control Circuits
Operation of system control circuits, magnetic solenoid valves, relays, contactors, check valves and regulators
Pressure Testing and Evacuation
Pressure testing, leak testing, system evacuation, refrigerant charging, safe operating pressures
Fault Finding
System pump-down, low/high pressure switch control, thermostic controllers, pressure release valves, system short cycling control
Assessment Breakdown%
Course Work70.00%
End of Module Formal Examination30.00%
Course Work
Assessment Type Assessment Description Outcome addressed % of total Assessment Date
Practical/Skills Evaluation Laboratory practical assessment of mechanical and electrical functions of a dedicated training unit, to include flow circuit diagrams and temperature recordings 4,5,6 20.0 Week 5
Short Answer Questions Coursework written exam based on learner unit outcomes 1,2,3,4 20.0 Week 8
Practical/Skills Evaluation Refrigeration & Air Conditioning Workshop practical assessment of leak detection methods used for testing on a dedicated test rig unit 2,3,4,5 30.0 Week 11
End of Module Formal Examination
Assessment Type Assessment Description Outcome addressed % of total Assessment Date
Formal Exam End-of-Semester Final Examination 1,2,3,4 30.0 End-of-Semester
Reassessment Requirement
Repeat examination
Reassessment of this module will consist of a repeat examination. It is possible that there will also be a requirement to be reassessed in a coursework element.

The institute reserves the right to alter the nature and timings of assessment

 

Module Workload

Workload: Full Time
Workload Type Workload Description Hours Frequency Average Weekly Learner Workload
Lecture Classroom lectures 3.0 Every Week 3.00
Lab Dedicated Lab Volt simulation test rig operation / manual handling exercises on refrigeration systems 2.0 Every Second Week 1.00
Independent & Directed Learning (Non-contact) Coursework self study 3.0 Every Week 3.00
Total Hours 8.00
Total Weekly Learner Workload 7.00
Total Weekly Contact Hours 4.00
Workload: Part Time
Workload Type Workload Description Hours Frequency Average Weekly Learner Workload
Lecture Classroom lectures 3.0 Every Week 3.00
Lab Dedicated Lab Volt simulation test rig operation / manual handling exercises on refrigeration systems 2.0 Every Second Week 1.00
Independent & Directed Learning (Non-contact) Coursework self study 3.0 Every Week 3.00
Total Hours 8.00
Total Weekly Learner Workload 7.00
Total Weekly Contact Hours 4.00
 

Module Resources

Recommended Book Resources
  • Althouse, Turnquist, Bracciano, 2000, Modern Refrigeration and Air Conditioning [ISBN: 1 - 56637 - 725 - 0]
  • Norman Cook 1995, Refrigeration and air-conditioning technology, Macmillan London [ISBN: 9780333609583]
  • Eugene Silberstein 2012, Refrigeration and Air Conditioning Technology, 1 Ed. [ISBN: 1111644543]
This module does not have any article/paper resources
This module does not have any other resources
 

Module Delivered in

Programme Code Programme Semester Delivery
CR_ECTMS_7 Bachelor of Science in Craft Technology - Mechanical Services 2 Mandatory
CR_EEQMF_6 Certificate in Equipment Maintenance Fundamentals 2 Elective
CR_EMSTE_6 Certificate in Mechanical Services Technology 2 Mandatory

Cork Institute of Technology
Rossa Avenue, Bishopstown, Cork

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Email: help@cit.edu.ie