Elements and Performance Criteria
- Prepare for work.
- Operate heat exchangers.
- Isolate and de-isolate plant.
Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge
Comprehensive understanding of heat exchanger principles to a level needed to control the operation In particular the operator needs to understand the factors affecting efficient operation of a heat exchanger in order to make appropriate adjustments or recognise when maintenance is required These also includes a knowledge of
The Evidence Guide provides advice on assessment and must be read in conjunction with the Performance Criteria Required Skills and Knowledge the Range Statement and the Assessment Guidelines for the Training Package
Assessment of this unit should include demonstrated competence on actual plant and equipment in a work environment The unit will be assessed in as holistic a manner as is practical and may be integrated with the assessment of other relevant units of competency Assessment will occur over a range of situations which will include disruptions to normal smooth operation
Simulation may be required to allow for assessment of parts of this unit Simulation should be based on the actual plant and will include walkthroughs of the relevant competency components Simulations may also include the use of case studiesscenarios and role plays
This unit of competency requires a significant body of knowledge which will be assessed through questioning and the use of whatif scenarios both on the plant during demonstration of normal operations and walkthroughs of abnormal operations and off the plant
Competence must be demonstrated in the ability to recognise and analyse potential situations requiring action and then in implementing appropriate corrective action The emphasis should be on the ability to stay out of trouble rather than on recovery from a disaster
These aspects may be best assessed using a range of scenarioscase studieswhatifs as the stimulus with a walkthrough forming part of the response These assessment activities should include a range of problems including new unusual and improbable situations which may have been generated from the past incident history of the plant incidents on similar plants around the world hazard analysis activities and similar sources
Assessment will require access to an operating plant over an extended period of time or a suitable method of gathering evidence of operating ability over a range of situations A bank of scenarioscase studieswhatifs will be required as will a bank of questions which will be used to probe the reasoning behind the observable actions
In all plants it may be appropriate to assess this unit concurrently with relevant teamwork and communication units For many plants it might be appropriate for this unit to be assessed with units covering
MSAPMOHS200A Work safely.
|The Range Statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the Performance Criteria, is detailed below. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs if the candidate, accessibility of the item, and local industry and regional contexts.|
Codes of practice/ standards
|Where reference is made to industry codes of practice, and/or Australian/international standards, the latest version must be used.|
|This competency includes all types of heat exchangers such as:plateUtubespiralbayonetair cooled finshell and tube (all variants of design)scraped surfacevessel jackets/coils.This competency does not cover super heaters or waste heat boilers, as these are treated as part of steam generating equipment.|
Heat exchanger duties
|Heat exchanger duties include:heating coolingcryogenicreboilerscondensersgas dryersgas coolersrefrigeration (evaporators/condensers).|
|Typical problems include:damage to heat exchanger due to overheating and/or under/over pressurisingfactors that affect heat exchanger efficiency (scale build-up, fouling, internal leakage, air lock, turbulence, corrosion)leakage or gasket problemsrecognising when maintenance is required.|
Start up shut down as required
|Start up shut down as required includes:start up and shut down to/from normal operating conditionsstart up and shut down to/from isolated, cold, emptyall other conditions experienced on the plant.ie from any condition to any condition experienced on the plant.|
|Appropriate action includes:determining problems needing actiondetermining possible fault causesrectifying problem using appropriate solution within area of responsibilityfollowing through items initiated until final resolution has occurredreporting problems outside area of responsibility to designated person.|
|Procedures may be written, verbal, computer-based or in some other form. They include:all work instructionsstandard operating procedures formulas/recipes batch sheets temporary instructions any similar instructions provided for the smooth running of the plant.For the purposes of this Training Package, 'procedures' also includes good operating practice as may be defined by industry codes of practice (eg Responsible Care) and government regulations.|
Health, safety and environment (HSE)
|All operations to which this unit applies are subject to stringent health, safety and environment requirements, which may be imposed through State or Federal legislation, and these must not be compromised at any time. Where there is an apparent conflict between Performance Criteria and HSE requirements, the HSE requirements take precedence.|