a buildiug has the following calculated cooling loads:RSH gain 300 kWRLH gain = 110 kWThe space is maintained at the following conditionsRoom DBT 25°C, Room RH = 55%Outdoor is at 40°C and RH 50%. And 10% by mass of air supplied to the buildings isout door. If the air supplied to the space is not to be at a temperature lower than18°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:ConditionDBTRHSp. HumidityEnthalpy°Cg.w.v./kg d.a.kJ/kg d.a.outside405023.6.100inside255510.652.5supplySpecitic valume of air supply point 0.836 m³/kg, coil ADP=9°C.1841.2

Answered: e following calculated cooli atained at…

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

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Concept explainers

Chemical and Phase Equilibrium

Phase diagrams or equilibrium phase diagrams are the graphical representations that show the phase transformations of the constituting elements with respect to the pressure, temperature, and compositions. The diagrams show the conditions that limit the different phases, namely solid, liquid, and gas. The diagram can also be utilized to verify the relations between the state variables. Most of the phase diagrams are temperature-pressure phase diagrams, with the variable parameter as the composition. Usually other variables such as solubility and pressure parameters are not indicated in the phase diagram. For a one-component system (unary phase diagram), the phase diagram is generally a function of temperature and pressure as the state variables, or temperature and volume. However, for a binary system (two-phase) having two components, the phase diagram is a function of temperature and composition as the state variables only. Coexisting of the different phases of the constituting elements is indicated in the phase diagram. A ternary phase diagram can be characterized by consisting of three phases in equilibrium.

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

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