History of Refrigeration and Developement of Refrigerants
Lesson
2 History Of Refrigeration – Development Of Refrigerants And Compressors
1 Version 1 ME, IIT Kharagpur
The objectives of the present lesson are to introduce the student to the history of refrigeration in terms of:
1. Refrigerant development (Section 2.2):
i. ii. iii. Early refrigerants (Section 2.2.1) Synthetic fluorocarbon based refrigerants (Section 2.2.2) Non-ozone depleting refrigerants (Section 2.2.3)
2. Compressor development (Section 2.3):
i. ii. iii. iv. v. vi. Low-speed steam engine driven compressors (Section 2.3.1) High-speed electric motor driven compressors (Section 2.3.1) Rotary vane and rolling piston compressors (Section 2.3.2) Screw compressors (Section 2.3.2) Scroll compressors (Section 2.3.2) Centrifugal compressors (Section 2.3.3)
At the end of the lesson the student should be able to: i. ii. iii. iv. v. vi. vii. State the importance of refrigerant selection List various refrigerants used before the invention of CFCs List various CFC refrigerants and their impact on refrigeration State the environmental issues related to the use of CFCs State the refrigerant development after Montreal protocol List important compressor types List important landmarks in the development of compressors
2.1. Introduction:
The development of refrigeration and air conditioning industry depended to a large extent on the development of refrigerants to suit various applications and the development of various system components. At present the industry is dominated by the vapour compression refrigeration systems, even though the vapour absorption systems have also been developed commercially. The success of vapour compression refrigeration systems owes a lot to the development of suitable refrigerants and compressors. The theoretical thermodynamic efficiency of a vapour compression system depends mainly on the operating temperatures. However, important practical issues such as the system design, size, initial and operating costs, safety,
2 History Of Refrigeration – Development Of Refrigerants And Compressors
1 Version 1 ME, IIT Kharagpur
The objectives of the present lesson are to introduce the student to the history of refrigeration in terms of:
1. Refrigerant development (Section 2.2):
i. ii. iii. Early refrigerants (Section 2.2.1) Synthetic fluorocarbon based refrigerants (Section 2.2.2) Non-ozone depleting refrigerants (Section 2.2.3)
2. Compressor development (Section 2.3):
i. ii. iii. iv. v. vi. Low-speed steam engine driven compressors (Section 2.3.1) High-speed electric motor driven compressors (Section 2.3.1) Rotary vane and rolling piston compressors (Section 2.3.2) Screw compressors (Section 2.3.2) Scroll compressors (Section 2.3.2) Centrifugal compressors (Section 2.3.3)
At the end of the lesson the student should be able to: i. ii. iii. iv. v. vi. vii. State the importance of refrigerant selection List various refrigerants used before the invention of CFCs List various CFC refrigerants and their impact on refrigeration State the environmental issues related to the use of CFCs State the refrigerant development after Montreal protocol List important compressor types List important landmarks in the development of compressors
2.1. Introduction:
The development of refrigeration and air conditioning industry depended to a large extent on the development of refrigerants to suit various applications and the development of various system components. At present the industry is dominated by the vapour compression refrigeration systems, even though the vapour absorption systems have also been developed commercially. The success of vapour compression refrigeration systems owes a lot to the development of suitable refrigerants and compressors. The theoretical thermodynamic efficiency of a vapour compression system depends mainly on the operating temperatures. However, important practical issues such as the system design, size, initial and operating costs, safety,