1. 2183-261 MECHAINICAL ENGINEERING LABORATORY Air Conditioning Process
Prof. Somsak Chaiyapinunt, Ph.D.
Revised July 26th, 2016.

2. 1. Introduction
Air conditioning process is the process that changing the properties of air (typically temperature and humidity) to a more comfortable condition.
Air conditioning system of Automotive

3. 1. Introduction
Air conditioning process is the process that changing the properties of air (typically temperature and humidity) to a more comfortable condition.
Air conditioning system of room

4. 1. Introduction
Air conditioning process is the process that changing the properties of air (typically temperature and humidity) to a more comfortable condition.
Heater

5. 1. Introduction
Air conditioning process is the process that changing the properties of air (typically temperature and humidity) to a more comfortable condition.
Humidifier

6. 1.2 Motivation
The understand of the performance of the air conditioning process becomes essential to the design engineers
The air is the primary fluid in the study.
The air is consisted of dry air and water vapor.

7. 1.3 objective
To do the performance test on each of the air conditioning process (heating, steam humidifying, cooling with dehumidifying and adiabatic mixing of air stream).

8. 1.4 Methodology Performance for each components:
Usually can be evaluated from the capability of each component.
i.e.
Efficiency (power out/power in), etc.

9. 1.4 Methodology
To be able to determine the component’s performance, one need to measure the air properties (entering and leaving the component).
Use the air properties along with the thermodynamic relations, one can determine the performance of each component.

10. 1.4 Methodology Measured data air dry bulb temperature
air wet bulb temperature
power input, (volt and ampere)
condensate
mass flow rate, etc.

11. 1.4 Methodology
What kind of instruments used for getting the required data?
How accurate the data?
How to convert the measured data to the desired results?

13. Reminder
The students need to submit the answer sheet during doing the lab.
The students need to have the lab sheet or lab note in hard copy when attend the lab.
Download and read the lab sheet before attend the class.

14. Question
??????