The following data refer to summer air conditioning of a building: Outside design conditions 43 °C DBT, 27 °C WBT Inside design condition 25 °C DBT, 50% RH Room sensible heat gain 84000 kJ/h Room latent heat gain 21000 kJ/h = BPF of cooling coil 0.2 %3D The return air from the room is mixed with the outside air before entry to cooling coil in the ratio of 4:1 by mass. Determine: (a) Apparatus dew point of the cooling coil (b) Entry and exit conditions of air for cooling coil (c) Fresh air mass flow rate and (d) Refrigeration load on the cooling coil.
The following data refer to summer air conditioning of a building: Outside design conditions 43 °C DBT, 27 °C WBT Inside design condition 25 °C DBT, 50% RH Room sensible heat gain 84000 kJ/h Room latent heat gain 21000 kJ/h = BPF of cooling coil 0.2 %3D The return air from the room is mixed with the outside air before entry to cooling coil in the ratio of 4:1 by mass. Determine: (a) Apparatus dew point of the cooling coil (b) Entry and exit conditions of air for cooling coil (c) Fresh air mass flow rate and (d) Refrigeration load on the cooling coil.
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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Transcribed Image Text:The following data refer to summer air conditioning of a building:
Outside design conditions
43 °C DBT, 27 °C WBT
Inside design condition
25 °C DBT, 50% RH
Room sensible heat gain
84000 kJ/h
Room latent heat gain
21000 kJ/h
BPF of cooling coil
0.2
The return air from the room is mixed with the outside air before entry to
cooling coil in the ratio of 4:1 by mass. Determine: (a) Apparatus dew
point of the cooling coil (b) Entry and exit conditions of air for cooling
coil (c) Fresh air mass flow rate and (d) Refrigeration load on the cooling
coil.
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