IN HVAC DESIGN

• HAP 4.51 (Hourly Analysis Program)
• Zamil Equipment Selection 7.2
• McQuay Duct Sizer
• McQuay Pipe Sizer
• Pump XL Program
• Fan static Pressure Xl Program
• PDF Extender
• ASHRAE Climatic Data
• Carrier Psychrometry
• Air Terminal Selection Software
• BOQ XL Program

1. Introducing, Scope and use of Air Conditioning
• Ashrae
• Ishrae
• Smacna
• Ari
• Definition of air conditioning
• HVAC application
• How HVAC project execute (overview of design & project)
2. Physics used in HVAC
• Heat
• British thermal unit
• Modes of heat transfer
• Unit of Refrigeration
• Temperature
• Temperature scales
• Enthalpy
• Sensible and latent heat
• Vapor compression refrigeration cycle
• Vapor absorption refrigeration cycle
• Units
• System of units
• Conversions (used in HVAC)
3. Classification of Air - Conditioning
• Window air conditioners
• Split air conditioners
• Ductable air conditioners
• Package air conditioners
• Chillers (air cooled & water cooled chillers)
• FCU (fan coil unit)
• AHU (air handling unit)
• VRF (variable refrigerant flow)
• Desert cooler
(Complete cycles involve in each machine, capacity range, application, differences will be cover in this chapter).
4. Psychometric
• Introduction
• Properties of air
• Dry bulb temperature
• Wet bulb temperature
• Dew point temperature
• Humidity ratio
• Relative humidity
• Saturated air
• Enthalpy of air
• Psychometric chart
• Psychometric analysis
• Sensible heat ratio
• By pass factor
• Contact factor
5. Survey of Building
• Site inspection
• Civil layouts
• Orientation of building
• Section heights (BOS, BOB, BO F/C,)
• Physical dimensions
• Construction material
• Type of fall ceiling
• Doors and windows location
• No. Of people, lighting, appliances. Etc
• Input file
6. Load Calculation (cooling and heating)
• Manual calculation (sample project)
• E-20 calculation carrier method
• Software calculation-
• HAP 4.50 latest versions (Hourly Analysis Program)
• Sources of heat
• Finding “u” value
• Heat gain through glass (conduction, radiation)
• Heat gain through sky lights
• Heat gain through wall (type of walls)
• Heat gain through roof
• Heat gain through partition, ceiling, floor
• Heat gain through ventilation
• Finding ventilation CFM by people and area method
• Heat gain through infiltration
• Infiltration CFM by crack method & air change method
• Heat gain through people
• Heat gain through lighting
• Heat gain through appliances
7. Machine Selections
• Type of System
• Factors effecting machine selection
• Window air condition selection
• Split air condition selection
• Ductable split air selection
• Package air condition selection
• VRF selection
• Chiller Selection
• Selection of Air Cooled Chiller.
• Selection of Water cooled Chiller
8. Design of Ducts (Manual & Software)
• Introduction to ducting
• SMACNA Standards
• Classification of ducts
• Duct material
• Duct gauge system
• Duct fittings
• Duct equipments
• Aspect ratio
• Recommended duct hangers distance
• Duct designing methods
• Recommended velocity for ducts
• Equal friction method
• Exercises
• Duct insulation
• Thermal insulation
• Acoustic lining
• Material for insulation
• Duct drafting
• Duct installation
9. Air Distribution & terminal Selections
• Condition for Good Distribution
• Air Patterns
• Types of air supply devices
• Diffuser
• Spot grill
• Continues grill
• Slot diffuser
• Ceiling plenum
• Little damper
• Butterfly damper
• Grill damper
• Volume control damper
• Standard sizes for ceiling diffuser
• Terminal selection
• Complete Planning For Low Side
10. Fan Selections
• Introduction
• Types of fan
• Fan laws
• Fan performance characteristics
• Fan selection requirements
• Loss coefficient
• Air volume CFM
• Static pressure
• Sound characteristics
• Fan selection
• Fan installation
11. Ventilation
• Toilet exhaust system
• Car parking ventilation system
• Kitchen exhaust system
12. Estimation of Material Requirement with Specifications
• No. of GI sheets for ducting
• Gauge selection for ducting
• No. of SAD and RAD
• No. of VCD with size
• No. of spot grills
• Continues grills requirements
• Grill and diffuser dampers requirements
• FIRE damper & Butter fly dampers
• Flexible duct requirements
• Flexible connection
13. Design of Chilled Water pipes, (Manual & Software)
• Two pipe direct return
• Two pipe reverse return
• Material for chill water piping
• Classification of pipes
• Chill water pipe designing (or) Sizing
• Finding velocity
• Chill Water pipe sizing using Manual
• Chill Water pipe sizing using pipe sizer
• Floor piping
• Pipe installation
• Chill water pipe insulation
• Pipe insulation Material
• Insulation thickness.
14. Fittings
• Pipe fitting
• Machine fitting
• AHU (or) FCU fitting
• Pump fitting
• Chiller fitting
• Valve selection
15. Chilled Water Pump Selection
• Introduction
• Pump laws
• Types of pump
• Primary pump
• Secondary pump
• Tertiary pump
• Pump selection, head loss etc.
16. All Air - Conditioning Systems
• Constant air volume system (CAV)
• Variable air volume system (VAV)
• Dual duct system
• Variable volume/ temperature system
• Desert cooler
17. Instrumentation, Testing and Balancing
• Types of instruments
• Tab work
• Air balancing
• Water balancing
• Commissioning
18. Installing Detail for HVAC
• Chiller installation
• AHU installation
• Ductable & package installation
• Duct installation
• Chilled water installation
• Fittings
• Check list
19. HVAC Drafting (Excluding AutoCad)
• Understanding of architecture layouts
• Understanding of structural layouts
• Type of false ceiling
• Planning in HVAC drafting
• Conversion of drawing units
• Single line drawing in ducting
• Double line drawing in ducting
• Single line piping
• Double line piping
• Section
• Printing/plotting techniques
20. Planning and Designing the HVAC System (project)

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