This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: TEST 1 Fall 2007
Morning YOU MUST SHOW ALL YOUR WORK PROBLEM I (40 points) (Outcome 2, 5) A tank contains 1 kgm ot‘liquid ammonia and 0.] kgm of ammonia vapor at 2 "C.
Determine:
. The quality ot‘the mixture. 2. The pressure in the system. 3. The total volume ot‘thc container.
4. The volume occupied by the liquid. PROBLEM 2 (20 points) (Outcome 2, 5) Superheated water vapor at 10 bars and 320 0C is allowed to cool at constant
volume until the temperature drops to 150 “C. Determine:
1. The final pressure. 2. The ﬁnal state (.._ VL. or V). and the quality (if saturated). PROBLEM 3 (30 points) (Outcome 2, 5)
Refrigerant 22 is contained in a closed rigid container with a volume of 2 [‘13.
Initially, the pressure and temperature ofthc steam is 140 psia and 300 "F. respectively. The temperature drops as a result of heat transfer to the surroundings.
Determine: . The total mass in the container 2. The temperature at which condensation starts. (You may give a very good
approximation — no need to interpolate) "\ .J. The fraction ot‘the total mass that has condensed when the pressure reaches
50 psia C} 2/2: zy/Z 74 my? fEI/VL
/W%‘ WWW Mam/J /2:r/“/
ﬂaw/5 75  7&2 : i. 26??"9'ﬂa/ﬂW' 7t ,yﬂ ii WFX‘W 07/037 Maw} TfV/ was?
[we/m; . ﬂﬂéé‘i 3 (Mr/9 _ 25—2/5": _ ﬂ.é§?¢f~ﬂﬂ/Z/F K3 ’ ¢r¢s " Hawaii/2% #575? ...
View
Full Document
 Spring '08
 Smith
 Dynamics, Thermodynamics, Heat, Water vapor, superheated water vapor, kgm ot‘liquid ammonia

Click to edit the document details