DIPLOMA IN HAVC DESIGN AND INSTALLATION

  1. INTRODUCTION TO  HVAC
  • Fundamentals of Heating, Ventilation and Air conditioning.

  • Basic refrigeration system or refrigeration cycle

  • Details of Compressor, condenser, Evaporator and Expansion devices

  • Types of heat transfer.

  •  Sensible Heat, Latent Heat

  • Psychometric chart and usage of psychometric chart.

  • Dry bulb temperature, wet bulb temperature, dew point temperature

  • Relative humidity, sensible heat ratios.

2. AIRCONDITIONING SYSTEM

  •  Classification of Air conditioning systems

  • Direct Expansion and Chilled water systems.

  • Window type air conditioners, Split type Air conditioners, Centralized air conditioners, Variable Refrigerant volume (VRV) systems.

  • Chilled water Fancoil units (FCU), Air Handling units (AHUs) and Freshair handling

    Units (FAHUs).

  •  Chillers, condensing units, district cooling plants.

  • Refrigerants

  • Local authority guide lines and LEED recommendations in HVAC Design.

3.DESIGN OF AIRCONDITIONING

  • Details of Space load and Load factors.

  • Thumb rules for heat load estimation.

  • HVAC Standards units and conversion Factors.

  • Heat Load calculation Manual E20 calculation, excel software.

  • HAP 5.0 software (licenced software shall be provided to students).

    Equipment selections.

  • Manufactures data for Equipment selections with reference to the calculated cooling load.

  • External Static Pressure and motor selection.

  • Acoustics and noise levels.

  •  COP and EER values.

  • S U-Value selection.

  • Thermal Load summary sheet, window schedule, u value calculation sheet preparations for Dubai Municipality.

  • Sample HAP calculations.

4. VENTILATION SYSTEMS

  • Fresh air and Exhaust air calculations

  • Smokeventilationsystems for low rise, midrise, highrise andsuper high rise buildings

  • Staircase pressurizationsystems

  • Car park ventilation system

  • Kitchen exhaust system

  • Selectionof Fresh air handling units (with and without thermal heat wheel)

  • Selection of Smoke ventilation fans and car park exhaust fans.

  • Selection of Ecology units.

  • Example calculations and selections

5. DUCT DESIGN

  • Duct designing - Equal friction Method and Equal velocity Method.

    Duct Aspect ratio and duct sizing.

  • Duct Materials selection and gauges selection.

  • Classification of Low, Medium and high pressure ducts.

  • McQuay duct sizer software.

  • Sample duct designing.

  • Detailed ESP Calculation

6. DUCT ACCSSORIES

  • Selection of Grilles and Diffusers - Velocity, pressure drop and throw.

  • Volume control Dampers, Motorised dampers and Variable Air Volume

  • ire Dampers, Motorised Fire Dampers and Smoke Fire dampers - Applications as per

    Dubai Civil Defence.

  • Acoustic lining and thermal insulation details.

  • Selection of Sand trap louvers, Gravity louvers

  • Example selection from Catalogues.

7. CHILLED WATER SYSTEMS

  • Selection of Chillers and types of Chillers.

  • Primary Chilled water pump and secondary chilled water pumps working and selection

  • Chilled water Pump Head calculation.

  • Chilled water pipesizing.

  • McQuay Pipe sizing software and usage.

  • Selection of Heat Exchangers.

8. CHILLED WATER PIPING ACCESSORIES

  • Chilled water pipes and fittings material selections.

  • Chilled water Pipe insulation and cladding details.

  • Chilled water valves -2 way Valves, 3 way valves, Butter fly valves, Gate valves, Double regulating valves, thermostats, pressure gauges, test points, strainers, non-return valves, Pressure independent control valves and air vents.

9. ENGINEERING

  •  Standard shop drawing legends and line types.

  • Air balancing Methods & Chilled water balancing.

  • Operational and Maintenance of HVAC systems.

Examination

Written examination ( 3 hours) 

Pass grade: 50% pass

60% merit 

80% Distinction

 

More Courses