Ammonia steadily flows at 2.64 lbm/s into an adiabatic compressor as a saturated vapor at 30 F and negligible velocity. The shaft power delivered to the compressor is 106 Btu/s. The fluid exits at 90 psia and 1004 fps [feet per second]. It then flows through an adiabatic diffuser and exits at 130 psia, 140 F, and 10 fps. Neglect potential energy effects. a) Determine the compressor's exit specific volume [ft³/lbm], and b) the diffuser's area ratio (Aexit/Ainlet). c) Draw T-v state diagrams showing the states and processes

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Thermodynamics problem
**Problem Statement:**

Ammonia steadily flows at 2.64 lbm/s into an adiabatic compressor as a saturated vapor at 30°F with negligible velocity. The shaft power delivered to the compressor is 106 Btu/s. The fluid exits at 90 psia and 1004 fps [feet per second]. It then flows through an adiabatic diffuser and exits at 130 psia, 140°F, and 10 fps. Neglect potential energy effects.

**Tasks:**

a) Determine the compressor’s exit specific volume [ft³/lbm].

b) Determine the diffuser’s area ratio \((A_{\text{exit}}/A_{\text{inlet}})\).

c) Draw T-v state diagrams showing the states and processes.
Transcribed Image Text:**Problem Statement:** Ammonia steadily flows at 2.64 lbm/s into an adiabatic compressor as a saturated vapor at 30°F with negligible velocity. The shaft power delivered to the compressor is 106 Btu/s. The fluid exits at 90 psia and 1004 fps [feet per second]. It then flows through an adiabatic diffuser and exits at 130 psia, 140°F, and 10 fps. Neglect potential energy effects. **Tasks:** a) Determine the compressor’s exit specific volume [ft³/lbm]. b) Determine the diffuser’s area ratio \((A_{\text{exit}}/A_{\text{inlet}})\). c) Draw T-v state diagrams showing the states and processes.
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