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Refrigeration and Air – Conditioning
Throttling
Reversed Carnot Cycle
Saturated Liquid
Dry Saturated Vapour
Superheated Vapour
Latent Heat of Vapourization
L- Phase Diagram of a pure substance on T - Plane
Critical Pressure
Critical Temperature
Vapour Compression Refrigeration System
Refrigeration Effect
Unit of Refrigeration
Comparision between Carnot refrigerator(Reversed Carnot cycle)
To get COP of conventional simple VCR System
Effect of varying the operating parameter on the performance of simple saturated VCR system
Decreasing the evaporating pressure
Increasing condenser pressure
Design of a compressor for a VCR system
Volumetric efficiency of compressor
Effect of Sub cooling the liquid refrigerant on the performance of VCR system
Providing superheating for the ref vapour at the exist of evaporator
Providing Liquid – suction heat exchanger (Regenerative HE) inver System
Psychrometry
Psychrometric Properties
Specific humidity
Absolute humidity
Relative humidity
Dry bulb Temperature
Wet bulb Temperature
Dew point Temperature
Degree of Saturation
Psychrometery Relations
Psychrometric or Air Conditioning process
Effect on Psychrometric properties
Cooling with dehumidification
Sencible heat factor
Adiabatic Humidification
Heating with Humidification
Application
Chemical dehumidification
Isothermal Humidification
Humidification with steam injection
Typical summer air conditioning system
Air Refrigeration System
Pressure Ratio
Practical air refrigeration cycle
Boot - Stap Air Refrigeration system
Vapour Absorption Refrigeration System
Aqua - Ammonia vapour Absorption Refrigeration System
Maximum possible COP of VAR system
Modified Aqua Ammonia VAR System
Lithium Bromide Vapour Absorption Refrigeration System
Comparison between VCR and VAR
Refrigerants
Classification of refrigerants
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