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Syllabus for Process Design Engineering Course

AEDEI: Syllabus of HVAC Design

Introduction to HVAC

  • Scope of HVAC Industry with overview of Consulting & Construction industry
  • Concepts of Air conditioning systems
  • Principles of air conditioning
  • Refrigerant cycle
  • Chilling system
  • Cooling
  • Heating
  • Humidification Methods
  • Dehumidification Methods
  • Filtration
  • Air-conditioning systems
  • Local cooling comfort System
  • Window Air conditioning
  • Split Air conditioning
  • VRV- Air conditioning
  • Chilled water Fan coil unit
  • Central Air Conditioning System
  • Chilled water system
  • Psychometric chart
  • Properties of Air (DBT, %RH, WBT, , DPT, ENTHALPY.)
  • Refrigerant
  • Types of Refrigerant
  • Evaporating & Condensing properties of refrigerant
  • Refrigerant Pipe sizing methods

Heat Load Estimation

  • Basics of Heat transfer in a building envelop
  • Understanding of Outdoor & Indoor Conditions
  • Correction to Outdoor temperature & Indoor temperature requirements
  • Exposure of Wall, Latitude of Location, Yearly Range, Daily Range etc
  • Factors effecting the loads estimate
  • Sources of Heat Gain
  • External- Sun Gain through Glass/Window, SunGain through Roof/Wall, Partition gain
  • Internal - People, Lights, Electrical Equipments, Motors, Kitchen Appliances, Heat gain through Infiltration air, Heat gain thorough Ventilation & By-pass air, Heat gain through ducts. Calculating RSH, RLH,OASH,OALH, GTH, ESHF, ADP, Dehumidified CFM
  • Heat loss calculations
  • Basics of Heat loss in a building envelop
  • Sources of Heat loss
  • Heat loss through Glass/window, Heat loss through Roof/Wall
  • Heat loss through Partition Glass/wall/Floor/slab
  • Heat loss through Infiltration air/Ventilation air & Bypass air
  • Heat loss through slab on Grade

Design of Air Distribution System

  • Components of Air distribution system
  • Types of Ducts, Duct Fittings, Dampers, Types of Diffusers, Return Air Grill, Flexible Duct, Flexible Connector, End Cap, Sound Attenuator etc
  • Duct Elbows selections (Long radius, Short radius-No throat, Throat elbows, with heel radius, throat radius & radius of elbow)
  • Vanes location & number of vanes required
  • Duct Material Calculation- GI sheet, Total sheet required in kgs. Gauge of duct & Thickness of Gauge. Hanger Spacing, Hanger Rod Diameter and Angle support Size
  • Duct designing methods
  • Fixed Velocity method
  • Equal friction Method
  • Static regain method
  • Fan selection
  • Static pressure calculation
  • Supply & Return Duct configuration, Assigning Velocity of Air (FPM) to each Section of Supply and Return Duct
  • Low Velocity system
  • Medium Velocity System
  • High Velocity System
  • Components of Air Distribution (Duct) System, Supply and Return Duct configurations (Extended Plenum Systems, Radial System, Trunk and Branch system)
  • Stair Well Pressurization System Designing Design of Ventilation system.
  • Introduction to Ventilation system
  • Types Of Ventilation
  • Components of Ventilation system
  • Restaurant Kitchen Ventilation
  • Residence Kitchen Ventilation
  • Basement parking Ventilation
  • Basement Ventilation In case of Fire
  • DG ,GG & GT Exhaust Seytem

Chilled Water system design

  • Introduction to Chilled water system, Hot watersystem
  • Classification of chillers
  • As per Evaporator
  • As per Condenser
  • As per compressor
  • Chiller arrangements, Cooling tower arrangement, Types of cooling tower & Expansion tank connections
  • Pumps required in Chilled water system
  • Production Pumps
  • Distribution Pumps
  • Pump Classifications
  • Chilled water system pipe designing
  • Pipe designators, Piping standards
  • Piping fittings and Components
  • Valves used in Chilled water system
  • Chilled water and Hot water GPM calculation
  • Calculation of Water Velocity FPS on Suction and Discharge side of Pump
  • District Cooling System
  • Friction loss calculation for the piping system
  • Friction Loss in Straight Pipes
  • Friction Loss in Straight Pipes
  • Friction Loss in Fittings
  • Valves used in Chilled Water System
  • Friction Loss in Valves & Special components
  • Calculating TDH for Pump (Open Piping System and Closed Piping System)
  • Pipe Sizing Manual Method Hazen-Williams Equation for Calculating Friction Loss
  • Pump Cavitations & NPSH Calculation for Pump

Equipment Selection

  • AHU&FCU classification and selection
  • Package Unit Selection DX- Chiller Selection
  • Condenser Selection (Air cooled, Water Cooled, Evaporative)
  • Cooling Tower Selection Mixed Air Temperature HRF for Open and Closed Compressor
  • Expansion Tank Selection

Erection of Equipments

  • Detailing& Installation of Chillers
  • Detailing& Installation of Air handling units<l/i>
  • Detailing& Installation of Package units
  • Detailing& Installation of Fan coil units
  • Detailing& Installation of Condensing units

Estimation of Project

  • Understanding the tendering requirements
  • Take Off Sheet
  • Preparing Inquiry for Suppliers
  • Preparing Rate of Analysis
  • Finalizing the suppliers
  • Final Billing & Quotations finalization

Documents Approvals

  • Preparation of Material submittals
  • Shop drawing submittals
  • Approval Drawings
  • Tender Drawings
  • Working Drawings
  • Co-ordination Drawings
  • As Built Drawings
  • Preparation of BOQ and design documents
  • Technical Specifications

Project Procurement works

  • Identifying the critical equipments
  • Preparation of purchase orders
  • Letter of Intent
  • Letter of credit
  • Minutes of meeting

Drafting of HVAC Systems

  • Introduction to Drafting
  • Types of Drawings used in the industry
  • Study & Preparation of Floor Drawings
  • Roof Drawings
  • Sectional Drawings
  • Builders Work Drawings
  • Co-ordination Drawings &Riser Diagram
  • Abbreviations & Symbols used