Design Of Ducts For Central Air Conditioning Systems

Duct Design Methods for Central Air Conditioning

What you'll learn
Duct Design, Air Distribution systems for Air conditioners
Requirements
Basic physics, Fluid mechanics, psychrometry
Description
In air conditioning systems:use air as the fluid,it is essential to design the Air Handling Unit (AHU) & Duct Network properlyThe primary function of an AHU & Ducts is to transmit processed air from the air conditioning plant to the conditioned space and distribute it properly within the conditioned space.A typical AHU consists of:- A duct system that includes a supply air duct, return air duct, cooling and/or heating coils, humidifiers/dehumidifiers, air filters and    dampers- An air distribution system comprising various types of outlets for supply air and inlets for return air- Supply and return air fans which provide the necessary energy to move the air throughout the systemThis course covers the following & is essential for HVAC engineers and Mechanical engineering students: 1. Describe an Air Handling Unit (AHU) and its functions2. Discuss the need for studying transmission aspects of air in air conditioning3.General rules for duct design4. Classification of duct systems5.Discuss airflow through air conditioning ducts, Bernoulli and modified Bernoulli equations, Static, dynamic, datum and total head, Fan Total Pressure (FTP) and power input to fan6. Discuss estimation of pressure loss through air conditioning ducts5. Estimation of frictional pressure drop of circular and rectangular ducts using friction charts and equations.**Important requirements of an air conditioning duct**Classification of duct systemsCommonly used duct design methodsPrinciple of velocity methodPrinciple of equal friction methodPrinciple of static regain methodPerformance of duct systemsSystem balancing and optimizationIntroduction to fans and fan laws

Overview

Section 1: Introduction to Air Distribution Systems-AHU

Lecture 1 Introduction

Section 2: Duct Design -1

Lecture 2 Duct Design -1

Section 3: Duct Design-2

Lecture 3 Duct Design-2

Section 4: Duct Layout Design-3

Lecture 4 Duct Layout Design Methods

Section 5: Duct Design-4 (Numerical on Duct Network Design)

Lecture 5 Duct Design-4 (Numerical on Duct Network Design)

HVAC Engineers, Mechanical engineers