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It provides us the air we breathe and protects us from the harmful effects of the sun’s rays. Without this blanket of protection, we would be baked alive by the heat of the sun during day and get frozen during night. So it is this mass of air that has made the temperature on the earth liveable.
CH-1. AIR REFRIGERATION CYCLE. 1. INTRODUCTION. Refrigeration may be defined as the process of achieving and maintaining a temperature below that of the surroundings, the aim being to cool some product or space to the required temperature. DEFINITION-:
CO 2: Describe vapour compression refrigeration system and identify methods for performance improvement. CO 3: Explain the working principles of air, vapour absorption, thermoelectric and steam-jet refrigeration systems. CO 4: Analyze air-conditioning processes using the principles of psychrometry.
Class XI
An air-conditioning system is an execution of an assembly of different parts of the system used to produce a specified condition of air with in a required space or building.
Understand the basic concept of refrigeration and air-conditioning and study the psychometric properties of air. Use efficiently the different refrigeration and air-conditioning tools and equipment’s.
We can begin studying thermal properties of matter with definitions of temperature and heat. Temperature is a relative measure, or indication of hotness or coldness. A hot utensil is said to have a high temperature, and ice cube to have a low temperature.
