TWO STARS AND A WISH by bram mutwiri https://padlet.com/brammutwiri/llatm6ivt3a5ha81 en-us 2025-02-26 12:30:15 UTC 2025-02-26 13:26:08 UTC hello@padlet.com 2 STARS brammutwiri https://padlet.com/brammutwiri/llatm6ivt3a5ha81/wish/3343565886 2025-02-26 12:34:17 UTC https://padlet.com/brammutwiri/llatm6ivt3a5ha81/wish/3343565886 ONE WISH brammutwiri https://padlet.com/brammutwiri/llatm6ivt3a5ha81/wish/3343570369 2025-02-26 12:38:25 UTC https://padlet.com/brammutwiri/llatm6ivt3a5ha81/wish/3343570369 THERMODYNAMICS brammutwiri https://padlet.com/brammutwiri/llatm6ivt3a5ha81/wish/3343624250 (a) Discuss the environmental concerns associated with the use of ammonia as a refrigerant. (4 marks)

(b) Explain the effect of suction and discharge pressures on the performance of a reciprocating compressor. (8 marks)

(c) Discuss the importance of compressor lubrication in refrigeration systems. (4 marks)

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