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What is HVAC

 

Before discussing HVAC we must know about MEP (Mechanical Electrical and Plumbing), Mechanical design is the part of MEP, and HVAC is the process in it. It defines Heating, Ventilation and air conditioning. These describe the functions of the system. An HVAC system is intended to regulate the house atmosphere during which it works. It controls a temperature of the space through heating and cooling, conjointly controls the humidness level within the surroundings by controlling the movement and distribution of air within the room.

  1. Scope of  HVAC designing.
  2. Basics and importance of hvac.
  3. Standards and code used in hvac
  4. Modes of heat transfer in a building
  5. Basic components of air conditioning
  6. Types of refrigeration cycles.
  7. Vapour absorbtion refrigeration systems.
  8. Vapour compression refrigeration system.
  9. Study on psychometric charts.
  10. Study of refrigerants.
  11. Types of refrigerants.
  12. Evaporating and condensing properties of refrigerants.
  13. Types of air conditioning system.
  14. Window air conditioning system
  15. Split air conditioning system.
  16. Ductable split ac
  17. Packaged air conditioning system.
  18. Rooftop Air conditioning system
  19. VRF & VRV Systems
  20. Centralized Air Conditioning System
  21. All Air System
  22. All water System
  23. Air Water System
  24. Boiler System Concepts

HVAC DESIGN CALCULATION

  1. Survey of Building
  2. Load calculation using E20 manual calculation.
  3. Study on ducts and its type.
  4. Study on air distribution system.
  5. Types of ducts,duct fittings,dampers,types of diffusers,flexible duct etc.
  6. Duct gauge selection and no of sheet calculation.
  7. Duct designing methods(manual calculation)
  8. Equal friction method
  9. Velocity reduction method
  10. static pressure calculation and selection of machines
  11. Pipe sizing
  12. Pump Head calculation and Pump selection
  13. Equipment selection

SOFTWARE DESIGNING

  1. Cooling load calculation using Hourly analysis program(HAP).
  2. Calculation of duct size using Mc Quay Duct sizer.

EQUIPMENT SELECTION

  1. Air terminal selection.
  2. Cold storage Load scheduling.
  3. Primary and secondary pump selection
  4. Selection of cooling tower.
  5. Selection of Chillers.
  6. AHU and FCU classification and selection.
  7. Package unit selection DX unit selection
  8. Selection of De-humidifier.
  9. Selection of Expansion tank

ESTIMATION OF PROJECT

  1. Understanding the tendering requirements.
  2. BOQ (Bill of quantities)

 

DRAFTING

  1. Introduction to Drafting using Auto CAD.
  2. Fundamentals and basics of HVAC.
  3. Symbols and codes used in HVAC designing.
  4. Types of Drawings used in the industry.
  5. Study & Preparation of Floor Drawings.
  6. Chiller scheme drawing.
  7. Section drawings of projects.

 

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