Free hvac lessons


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Old 04-06-09, 04:31 PM
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Thumbs up Free hvac lessons

dear all member :
i decided to provide free hvac lessons for HVAC-Talk members which aim to develop HVAC designer's skills and knowledge about HVAC design and I will put it in HVAC-Talk forum soon

With my Best wishes;
Eng.Mohamed fawzy
 
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Old 04-06-09, 04:35 PM
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Thumbs up Lesson#1 Introduction to HVAC systems

In this lesson we will talk about:

The goal of HVAC system.

Comfort requirements.

Dissecting HVAC system to loops.

1.The goal of HVAC system:

The goal of the heating, ventilating, and air conditioning (HVAC) system is to create and maintain a comfortable environment within a building.


2- Comfort Requirements:

A comfortable environment, however, is broader than just temperature and humidity. Comfort requirements that are typically impacted by the HVAC system include:

Dry bulb temperature
Humidity
Air movement
Fresh air
Cleanliness of the air
Noise levels


3- Dissecting HVAC system:

Dissecting HVAC system is a method for understanding the components of different types of HVAC system.

The premise of this method is that any HVAC system can be dissected into basic subsystems will be referred to "loops".

There are five primary loops that can describe any type of HVAC systems:
Air side loop.
Chilled water loop.
Refrigeration loop.
Heat rejection loop.
Control loop.



Please note that not every system will use all five loops.


Now this lesson is finished write your questions about this lesson in the comments below we will talk in the next lesson about every loop in details see you soon
To View Lesson#1 Source you can Enter Here
 
 

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