Scope and tools of theoretical training and assessment

Sándor Korbuly

2011

Vocational school Vocational and Adult Education

Established 1995

Founders: Mr. Árpád SOÓS

Mr. Péter FALUDY

Aim: improving the general knowledge level of native RAC trade and installers

Approaching and applying the up-to-date information and AREA expectationsSándor Korbuly

2011

Scope and tools of theoretical training and assessment

Sándor Korbuly

2011

Scope and tools of theoretical training and assessment

Training / educational facilities

present site since 2001

2 classrooms

Mechanical workshop (piping, welding, brazing, etc)

Computer room

Laboratory

Dining room

Depot

Social premises

Sándor Korbuly

2011

Scope and tools of theoretical training and assessment

Training / educational equipment

Demo AHU

Liquid chillers

Fan-coils

Split A/C units / components

Prefabricated Walk-in Freezer (Cold Store)

Demonstration cooling cycles

Parts and components of refrigerating units/systems

(source: own part, HKVSZ support, Sponsors)

Sándor Korbuly

2011

Scope and tools of theoretical training and assessment

Certifications

Certified Institution (native)

Certified Training Programs

AREA Certificate of Merit (2002)

Adult Training Accreditation Board (2003)

HKVSZ Certification (Basic School)

Cooperation Agreement with HKVSZ since 2001

Assessment agreement with HMCB

Sándor Korbuly

2011

Scope and tools of theoretical training and assessment

Courses

Based on Fgas categories

1. Installation, Repair and Maintenance of Refrigerating A/C and Heat Pump Systems and

Equipment (including special mastery of leak detection) w/o refrigerant qtty limit (VET)

2. Moderated Capacity Refrigerating A/C and HP Equipment and System Installer

(refrigerant qtty < 3 kg)

3. Recovering and Handling of Refrigerant

4. Leak Detection

MAC sector

5. A/C Systems for Vehicles (refrigerant qtty < 3 kg)

6. Truck cargo refrigeration/cooling, Coach A/C systems (w/o refrigerant qtty limit)

Sándor Korbuly

2011

Scope and tools of theoretical training and assessment

Special Courses

- upon request

e.g. - Ammonia refrigerating systems

- Fire system (necessary for welding/brazing

activities)

- Refrigerating system operator

- etc.

Sándor Korbuly

2011

Scope and tools of theoretical training and assessment

Courses

Participation conditions

Specified for the courses

(e.g. for MAC courses certain qualification in vehicle technics…)

In case of doubt: Competency Committee (HKVSZ)

Decision upon – basic qualification

- practice

- experience

- references

Sándor Korbuly

2011

Scope and tools of theoretical training and assessment

Course Outline

The courses are of modular systems, consisting

of both theoretical and practical lessons

The theoretical part include the fundamentals of

– thermodynamics

- fluid mechanics

- acoustics

- principles of basic refrigeration cycle

- refrigerants, lubricants

- understanding of trade terminology

Q = c x m x Δt

Sándor Korbuly

2011

Scope and tools of theoretical training and assessment

Course Outline

Thermodynamics

- Nature, units and measurement of heat

- Heat transfer (conduction, convection, radiation, heat load

calculation)

- Heat expansion (linear, volumetric; solid, liquide, vapour substances)

- Specific heat, sensible heat, latent heat, enthalpy

- Changing of state (vaporization, condensation)

- h–x chart of humid air (Mollier)

- Pressure (units, measurement, gauges)

Q = c x m x Δt

Sándor Korbuly

2011

Scope and tools of theoretical training and assessment

Course Outline

Fluid Mechanics

- Continuity equation

- Ideal fluid flow

- Bernoulli equation

- Fluid/air flow pressure drop (friction loss)

- Fans, pumps (sorts, charcteristics)

Sándor Korbuly

2011

Scope and tools of theoretical training and assessment

Course Outline

Acoustics

- Characteristics of sound (frequency, wave length)

- Sound power level, ~ pressure level

- Subjective acoustics (dB(A) ; NC, phon)

- Addition of sound pressure levels

- Attenuation (distance, attenuators, vibration dampers)

Sándor Korbuly

2011

Scope and tools of theoretical training and assessment

Course Outline

Fundamentals of Refrigeration

- Refrigeration systems (Seebeck effect, absorption,

compressor)

- Refrigerants (features, environmental effects – ODP, GWP, TEWI)

- Compressor refrigeration cycle (components, logp-h chart)

- Components of refrigeration cycle (compressor, heat exchangers,

expansion valve, auxiliary components)

- Control of cooling cycle

Sándor Korbuly

2011

Scope and tools of theoretical training and assessment

Relating National and EU Regulations

- 1005/2009 EC (substances that deplete the ozone layer)

- 842/2006 EC

- 303/307/2008 EC

- Responsibility, obligations of operator, registration, regular leak

detection, control and report.

Sándor Korbuly

2011

Scope and tools of practical training and assessment

Course Outline

Illustrative equipment

Compressors

-hermetic

-semi hermetic

Condensers

Evaporators

Receivers

Safety and control devices

Accessories

Sándor Korbuly

2011

Scope and tools of practical training and assessment

Course Outline

Training / educational facilities

- demo / test panels

- refrigeration cycle with

generated fault

Sándor Korbuly

2011

Scope and tools of practical training and assessmentTraining / educational facilities

Complete AHU

Fresh air inlet

Return air

Filter

Heating

- heat pump

- electric

- hot water

Cooling

- DX coil

- water chiller

Humidification

Dehumidification

Fan (variable rpm.)

Automatic and manual control

Mixingchamber

Sándor Korbuly

2011

Scope and tools of practical training and assessmentTraining / educational

facilities

Chillers

Compact (outdoor)

Split

Sándor Korbuly

2011

Scope and tools of practical training and assessmentTraining / educational

facilities

Cold stores (chambers)

Racks / display cases

Household refrigerator

Chest freezer with two

stage compressor

Operating MAC mock-up

Mobile cargo cooler

Sándor Korbuly

2011

Scope and tools of practical training and assessmentTraining / educational

facilities

Switchboards / controls

- automatic

- manual

Sándor Korbuly

2011

Scope and tools of practical training and assessmentTraining / educational

facilities

Split units

Sándor Korbuly

2011

Scope and tools of practical training and assessmentTraining / educational

facilities

Recovering / charging

devices / equipment

Sándor Korbuly

2011

Scope and tools of practical training and assessmentTraining / educational

facilities

Illustrative operating equipment

for trouble shooting and remedy,

for Fgas training

Sándor Korbuly

2011

Scope and tools of practical training and assessmentTraining / educational

facilities

Dynamic leak detector

calibrating equiment

Sándor Korbuly

2011

Scope and tools of practical training and assessment

Course Outline

Applied tools and equipment of

the trade

Basic activity and application of

tools

- flaring

- bending

- brazing

- welding

- formation/manufacturing

of air duct pieces

Sándor Korbuly

2011

Scope and tools of practical training and assessment

Course Outline

Identification of refrigeration cycle,

components, safety and control devices

Trouble shooting/identification/remedy

(electric, mechanical)

Replacing

cycle

components

Maintenance

Sándor Korbuly

2011

Scope and tools of theoretical training and assessment