Homework 8 (due on March 29)
1.
Design conditions of Example 7 in the handout are:
Space sensible load: 127,143Btu/h
Space latent load: 10,000 Btu/h
Space air temperature: 75F
Outside air conditions are: 97F and 77F WB
Outside air flow is 850CFM
Supply ai

Homework 5 (due on Feb. 26)
1. 4-1 on Page 116 of the textbook (20)
Hint: choose comfort, too hot, too cold, too dry, too humid or combination
2. 4-3 on Page 116 of the textbook (15)
Hint:
a. choose the comfort temperature @50%rh based on Figure 4-1, then

Homework 4 (due on Feb. 22)
1. Problem 5-2 of Textbook (10)
2. Problem 5-3 of Textbook (20)
3. Calculate the heat transfer rate in Btu/h or W of Problem 5-3 if the surface
temperatures of the glass fiberboard are 70F (21C) and 32F(0C) (10)
4. Calculate th

Homework 6 (Due on March 2)
1. Calculate the total sensible and latent heat gain in Btu/h from people, lightings,
and computer and other office equipment at a room (shown in the figure). (45
point)
a. Space is occupied by 21 people.
b. Space has 19 lighti

MAE 309/CAE 330 Fluid Mechanics Group Project
The following is a list of project topics and project requirements for the MAE
309/CAE 330 group research/design project. Each student will work on a
project topic in a team of three students.
Project topics:

Homework 2 (due on Jan. 29)
1. Use the ideal gas relation to calculate the dry air specific volume at 14.7Psi and
59F. (10Point)
2. Problem 1-12 (page 20 of the textbook) (10Point)
Tip: q air q water
3. Problem 1-16 (page 20 of the textbook) (10 Point)
4.

Homework 1 (due at 4PM on Jan 22, 2016)
1. Convert the IP units in the HVAC schedule table below to followed SI units (10x5
points)
Note: MBH=1000Btu/h and H2O =inch of water
2. Convert the following quantities from English to SI units. (6x5 point)
a) 98

Homework 9 (due on April 6)
1. A building has a 10,000 ft2 interior office space, served by one AHU with
economizer function. The supply airflow is 10,000CFM and minimum outside
airflow is 1,000CFM. The desired space condition is 75F and 50%rh and the
sup

Homework 3 (due on Feb. 15)
1. At standard sea level, calculate required moist air properties based on two given
properties only using equations and the water saturated temperature and pressure
table and then compare your results with psychrometric chart.