02: An office is to be air conditioning for 50 employees when the outdoor conditions are 30 Cº DBT and 75% RH. If the quantity of outdoor air supplied is 0.4 m² /min/person. Assume that required comfort conditions are 20 C° DBT and 60 % RH and the air is conditioned first by cooling and dehumidification until saturation and then heating. Draw the pshychrometric figure for the processes and find the following: 1- Capacity of the cooling coil in tons of refrigeration. 2- Amount of water removed by the eliminator per hour. 3- If the heating coil surface temperature is 25 C° then find the by-pass factor of the heating coil.

02: An office is to be air conditioning for 50 employees when the outdoor conditions are 30 Cº DBT and 75% RH. If the quantity of outdoor air supplied is 0.4 m² /min/person. Assume that required comfort conditions are 20 C° DBT and 60 % RH and the air is conditioned first by cooling and dehumidification until saturation and then heating. Draw the pshychrometric figure for the processes and find the following: 1- Capacity of the cooling coil in tons of refrigeration. 2- Amount of water removed by the eliminator per hour. 3- If the heating coil surface temperature is 25 C° then find the by-pass factor of the heating 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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30. A classroom type room with 45students taking an exam in thermodynamics is expected to release a body heat of about 8kJ/hr per person. In order to compensate this heat dissipation, an air- conditioning unit is to be installed. If specific heat capacity and density of air is 1.0062kJ/kg-K and 1.2kg/m³, determine the volume of air flow required in examination room if the air is to be cooled down from 29°C to 20°C. a. 8.5177L¡/s b. 9.1262Lİ/s c. 9.2022L¡/s d. 9.0501Lİ/s
18. A classroom type room with 45students taking an exam in thermodynamics is expected to release a body heat of about 8kJ/hr per person. In order to compensate this heat dissipation, an air- conditioning unit is to be installed. If specific heat capacity and density of air is 1.0062kJ/kg-K and 1.21kg/m³, determine the volume of air flow required in examination room if the air is to be cooled down from 29°C to 20°C. a. 8.5177L¡/s b. 9.1262Lİ/s c. 9.2022Lİ/s d. 9.0501Lİ/s
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Solve it using the chat and show how you get the answers from the chat
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Please show steps I keep coming up with -0.0044
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