Task 1: Your first customer asked for a 1-m x 1-m x 1-m rubber room that is heated by a steam-radiator system. Your role in your company is to analyze, describe the operation of the system and their properties, explain and demonstrate the application of the first law of thermodynamics to this system. In addition, you are required to illustrate the importance of expressions for work done in the system through the application of the first law.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Task 1:
Your first customer asked for a 1-m x 1-m x 1-m rubber room that is heated by a steam-radiator
system. Your role in your company is to analyze, describe the operation of the system and their
properties, explain and demonstrate the application of the first law of thermodynamics to this
system. In addition, you are required to illustrate the importance of expressions for work done
in the system through the application of the first law.
50 kJ/h
Room
1m x 1m x 1m
100 kJ/h
Steam
W.
(Cengel)
Figure 1: Schematic for task 1.
Initially, the room contains 1.2 kg of air at 100 kPa. The steam radiator transfers heat at a rate
of 100 kJ/h, and a 10 W fan is used to distribute the warm air in the room. The rate of heat loss
from the room is estimated to be about 50 kJ/h. During the process, the pressure is increased
linearly until 110 kPa after x of operating hours when the final volume is equal 1.1 m3.
You must follow the following steps to help your customer:
STEP 1
Assume the air in the room is a perfect gas, explain the relationships between system
constants then find the temperature at all states.
STEP 2
Describe the operation of the thermodynamic system in Figure 1 and its properties, by
constructing a P-V and T-V plots showing the process and the path.
Transcribed Image Text:Task 1: Your first customer asked for a 1-m x 1-m x 1-m rubber room that is heated by a steam-radiator system. Your role in your company is to analyze, describe the operation of the system and their properties, explain and demonstrate the application of the first law of thermodynamics to this system. In addition, you are required to illustrate the importance of expressions for work done in the system through the application of the first law. 50 kJ/h Room 1m x 1m x 1m 100 kJ/h Steam W. (Cengel) Figure 1: Schematic for task 1. Initially, the room contains 1.2 kg of air at 100 kPa. The steam radiator transfers heat at a rate of 100 kJ/h, and a 10 W fan is used to distribute the warm air in the room. The rate of heat loss from the room is estimated to be about 50 kJ/h. During the process, the pressure is increased linearly until 110 kPa after x of operating hours when the final volume is equal 1.1 m3. You must follow the following steps to help your customer: STEP 1 Assume the air in the room is a perfect gas, explain the relationships between system constants then find the temperature at all states. STEP 2 Describe the operation of the thermodynamic system in Figure 1 and its properties, by constructing a P-V and T-V plots showing the process and the path.
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