HVAC System Designing

Introduction to HVAC

• Scope of designing.

• Basics and importance of HVAC.

• Future advancements in HVAC.

• Standards and codes used in HVAC.

• Modes of heat transfer in a building.

• Basic components of air conditioning.

• Types of refrigeration cycles.

• Vapor absorption refrigeration system.

• Vapor compression refrigeration system.

• Study on psychometric charts (manual and software).

• Study on refrigerants.

• Types of refrigerants.

• Evaporating & condensing properties of refrigerants.

• Types of air conditioning systems.

• Window Air Conditioning Systems.

• Split Air Conditioning Systems.

• Ductable split AC.

• Package Air Conditioning Systems.

• Categories of air conditioning.

• Air cooled system of air conditioning.

• Chilled water system of air conditioning.

• Air water system of air conditioning.

• Direct refrigerant system of air conditioning.

• Energy conservation measures.

• District cooling, geothermal, under floor cooling, energy recovery wheel.

HVAC Design Calculations

• Load calculation using E 20 manual calculation.

• Ventilation, Infiltration load calculations.

• Restaurant and residence kitchen ventilation system design.

• Parking area ventilation and designing.

• Toilet ventilation (Public and residential).

• External static pressure (E.S.P) calculation for selection of motor and fan.

• Pump size and hydraulic head calculation for chilled water in pipe sizing.

• Evaporative Losses calculation in cooling towers.

• Stairwell pressurization system designing.

• Cold storage designing.

• Study on ducts and its types.

• Study on air distribution systems.

• Types of ducts, Duct fittings, Dampers, Types of diffusers, Flexible ducts etc.

• Ducts reducer selection

• Duct gauge selection and number of sheet calculation

• Duct designing methods (manual calculations) using.

• Equal friction method.

• Velocity reduction method.

• Static regain method.

• Pipe sizing methods

Equipment Selection

• Air terminal selection.

• Cold storage Load scheduling.

• Primary and secondary pump selection

• Selection of cooling tower.

• Selection of Chillers.

• AHU and FCU classification and selection.

• Package unit selection DX unit selection

• Selection of De-humidifier.

• Selection of Expansion tank.

Estimation of Project

• Understanding the tendering requirements.

• BOQ (Bill of quantities).

• SOFTWARE DESIGNING

• Cooling and heating load calculation using Hourly Analysis Program (HAP).

• Calculation of duct size using Mc Quay Duct sizer

• Calculation of pipe diameter using Mc Quay pipe sizer.

• Air terminal selection by using BETA Program.

Drafting

• Introduction to Drafting using Auto CAD.

• Fundamentals and basics of HVAC

• Symbols and codes used in HVAC designing.

• Types of Drawings used in the industry.

• Study & Preparation of Floor Drawings.

• Chiller scheme drawing.

• Section drawings of projects.