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Consider the following alr-condltlonIng system design whlch Involves a refrigeration process ('coollng coll unit') and a mbing process ('mlxing box'). Cooling Unit Mixing Box W2 T2 Ø2 Th coolant Tcoolant,In 下 Condensate Cooling Coil Coolant Return Air For steady state operation of the coollng coll unlt at 1 atm, determine the following: 42. the mass balance for the dry air; a) ma1 < maz b) ma1 c) ma1 – Maz = ma d) ma1 > Maz maz = ma %3D %3D 43. the mass balance for the water; a) my1 = Myz - MH20 b) my1 = My2 = ṁH20 tin

Consider the following alr-condltlonIng system design whlch Involves a refrigeration process ('coollng coll unit') and a mbing process ('mlxing box'). Cooling Unit Mixing Box W2 T2 Ø2 Th coolant Tcoolant,In 下 Condensate Cooling Coil Coolant Return Air For steady state operation of the coollng coll unlt at 1 atm, determine the following: 42. the mass balance for the dry air; a) ma1 < maz b) ma1 c) ma1 – Maz = ma d) ma1 > Maz maz = ma %3D %3D 43. the mass balance for the water; a) my1 = Myz - MH20 b) my1 = My2 = ṁH20 tin

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Consider the following alr-condltloning system design whlch Involves a refrigeration process ('coollng coll unit") and a mixing process ('mlxing box'). 1 Cooling Unit Mixing Box 4 NNN W2 T2 Ø2 Tcoolant,In 3 Condensate Cooling Coil Coolant Return Air For steady state operation of the coollng coll unlt at 1 atm, determine the following: 42. the mass balance for the dry air; a) ma1 < maz Maz b) ma1 c) ma1 d) ma1 > maz ma Ma2 = Ma %3D 43. the mass balance for the water; my1 = My2-mu20 my1 = my2 = ṁu20 my1 + mv2 = mH20 a) b) c)
Transcribed Image Text:Consider the following alr-condltloning system design whlch Involves a refrigeration process ('coollng coll unit") and a mixing process ('mlxing box'). 1 Cooling Unit Mixing Box 4 NNN W2 T2 Ø2 Tcoolant,In 3 Condensate Cooling Coil Coolant Return Air For steady state operation of the coollng coll unlt at 1 atm, determine the following: 42. the mass balance for the dry air; a) ma1 < maz Maz b) ma1 c) ma1 d) ma1 > maz ma Ma2 = Ma %3D 43. the mass balance for the water; my1 = My2-mu20 my1 = my2 = ṁu20 my1 + mv2 = mH20 a) b) c)
Glven the propertles In Table 1 only, solve for: 45. the relative humldity of the molst alr at exit, Ø2, In %; a) 40 Table 1 b) 60 0.5 kg/s c) 80 d) 100 T 37°C e) none of the above 60% 46. the molst alr temperature at exit, T2, In °C (assume Pg = P,); W2 0.0078 а) 13.1 b) 12.2 c) 10.3 d) 9.2 e) none of the above 47. the rate of heat transfer between the moist air stream and the cooling coil (àout), in kW, Assum for this calculation that state 2 is saturated and the wet bulb temperature is Twbz=10°C; a) 99 b). 68 c) 34 d) 42 e) none of above
Transcribed Image Text:Glven the propertles In Table 1 only, solve for: 45. the relative humldity of the molst alr at exit, Ø2, In %; a) 40 Table 1 b) 60 0.5 kg/s c) 80 d) 100 T 37°C e) none of the above 60% 46. the molst alr temperature at exit, T2, In °C (assume Pg = P,); W2 0.0078 а) 13.1 b) 12.2 c) 10.3 d) 9.2 e) none of the above 47. the rate of heat transfer between the moist air stream and the cooling coil (àout), in kW, Assum for this calculation that state 2 is saturated and the wet bulb temperature is Twbz=10°C; a) 99 b). 68 c) 34 d) 42 e) none of above
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