1. Review for the Exam
Should be able to do all calculations associated with lectures as well as HWs
Problems may deal with context
i.e. Explain how thermal conductivity influences fin efficiency? Holding all other parameters equal, how important is increasing the thermal conductivity

2. Psychrometrics and Processes (7 & 8)
Know all parameters and their location/orientation on a psychrometric chart
Be able to look up conversions of parameters on a psychrometric chart and with calculations
Use protractor to calculate SHR and ΔW/Δh
Plot processes on a chart for real buildings
List what is held constant for different processes
Describe processes in AHUs in psychrometric chat

3. Direct Contact (10) Purpose of cooling towers Psychrometrics
Describe how a cooling tower works

4. Cycles (3), Refrigerants (4)
Describe Carnot cycle and components
Understand constant variables for each component
List, describe, and calculate inefficiencies
Use figures, refrigerant tables and equations for different substances
List important parameters for refrigerant selection/differentiation

5. Heat Exchangers (11) Differentiate types Calculate ε, and UA, etc.
Complete broad analysis
Which m is larger, which Δt is larger?
Within and between heat exchangers

6. Heat Exchangers (11)
Calculate and compare different thermal resistances
Describe influence of key factors
Integrate different parameters/resistances
Manipulate UA equation
Describe differences for wet and dry heat exchangers

7. Diffusers, Duct Components (18)
Select diffusers
Define all terms on manufacturer data sheets
Calculate pressure drop of:
Straight duct
Duct fittings
Differentiate fans and describe fan curves

8. Duct layout/design (18) Equal friction method Supply or return systems
Balance the system

9. Final Project
Think about the group members
and your favorite topic

10. PumpsFans Driving force to move air water in buildings
Raise pressure and produce flow
One main type
Centrifugal

11. Pump curves
NPSHR = Net Positive Suction Head Required

13. Finding Volumetric Flow
Same procedure as for air
Intersection of pump curve and system curve
How can you control flow?

14. Changing Pump Speed

15. Use Multiple Pumps

16. Plumbing Arrangements

20. Example 19.7 Similar to equal friction method
Calculate head loss for common pieces of system
Size pipes to have equal head loss between points 2 and 3