e following calculated cooli atained at the following con PC, Room RH = 55% Cand RH 50%. And 10% E ir sunnlied to the sn000 lo
e following calculated cooli atained at the following con PC, Room RH = 55% Cand RH 50%. And 10% E ir sunnlied to the sn000 lo
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
Related questions
Question
100%
![a buildiug has the following calculated cooling loads:
RSH gain 300 kW
RLH gain = 110 kW
The space is maintained at the following conditions
Room DBT 25°C, Room RH = 55%
Outdoor is at 40°C and RH 50%. And 10% by mass of air supplied to the buildings is
out door. If the air supplied to the space is not to be at a temperature lower than
18°C. Find
(i) Miu amount of air supplied to space in m/sec.
(ii) Mass flow rates of return air, exhaust air and out door air
(i) Capacity, BPFand sensible heat factor of cooling coil.
Given:
Condition
DBT
RH
Sp. Humidity
Enthalpy
°C
g.w.v./kg d.a.
kJ/kg d.a.
outside
40
50
23.6.
100
inside
25
55
10.6
52.5
supply
Specitic valume of air supply point 0.836 m³/kg, coil ADP=9°C.
18
41.2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F542525cb-ef2f-477f-ab59-d14206f8928f%2Fe0d10fd2-4b76-44bf-97b2-3119a3c335a3%2F0ekh8hj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:a buildiug has the following calculated cooling loads:
RSH gain 300 kW
RLH gain = 110 kW
The space is maintained at the following conditions
Room DBT 25°C, Room RH = 55%
Outdoor is at 40°C and RH 50%. And 10% by mass of air supplied to the buildings is
out door. If the air supplied to the space is not to be at a temperature lower than
18°C. Find
(i) Miu amount of air supplied to space in m/sec.
(ii) Mass flow rates of return air, exhaust air and out door air
(i) Capacity, BPFand sensible heat factor of cooling coil.
Given:
Condition
DBT
RH
Sp. Humidity
Enthalpy
°C
g.w.v./kg d.a.
kJ/kg d.a.
outside
40
50
23.6.
100
inside
25
55
10.6
52.5
supply
Specitic valume of air supply point 0.836 m³/kg, coil ADP=9°C.
18
41.2
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