Air conditioning systems 2. Properties of moist air 3. Moist air processes 4. Space air conditioning 5. Indoor air quality--comfort and health 6. Heat transfer from human body 7. Heat transfer in building envelopes 8. Infiltration heat load and weatherizing 9. Computation of the heating load 10. Heat gain by solar radiation 11. Computation of the cooling load 12. Energy requirements for HVAC systems; building energy audit 13. Fans--performance, selection, and installation 14. Air flow in ducts and fittings 15. Design of duct systems 16. Codes & standards for building energy systems 17. Annual energy consumption

1. AIR CONDITIONING and VENTILATION SYSTEMS
NME 515
Equipment Design: Coolers And
Chillers
Engr. Charlton Inao, ME
TESDA TVET NC Level 3 RAC-CRE Certified
1

2. Rating and Selection of
Unit Coolers
TABLE R-2
UNIT
COOLER
CAPACITY
RATINGS
AND
SPECIFICATI
ONS

3. Rating and Selection of
Unit Coolers


4. 11-21 Rating and
Selection of Unit Coolers


5. Chiller Selection Procedure
Although chiller selection procedures have
been computerized and chiller slections
are now made by computer, it is
nonetheless important to be familiar with
some of the design parameters and with
some of the variables that determine
chiller capacity and performance.

6. 11-31 Chiller Selection
Procedure


7. Chiller Selection Procedure


8. Chiller Selection Procedure
TABLE 11-1 MEAN
EFFECTIVE
TEMPERATURE
DIFFERENCES
(METD)

9. Chiller Selection
Procedure
3. Select trial chiller (chell diameter and baffles spacing) from Fig. R-6 of
Table R-6. Enter Fig R-6 at 50 gpm on the lower vertical scale and move
horizontally across the chart to the diagonal line representing the type unit
desired. The number indicates shell diameter and the letter indicates baffle
spacing. Possible choices are 10M, 12L, 8M, 12K, 10K, and 8L. As a general
rule, small diameter chillers are more economical, whereas larger-diameter
chillers are more compact. Type M baffling produces the lowest pumping
head, whereas type K baffling produces the highest pumping head. Hence,
if space is not a problem, the most logical choice would seem to be type
8M.

10. 11-31 Chiller Selection
Procedure


11. 11-31 Chiller Selection
Procedure
 INSERT FIG R-6 TABLE R-6

12. 11-31 Chiller Selection
Procedure


13. 11-31 Chiller Selection
Procedure


14. CUSTOMARY PROBLEMS


15. CUSTOMARY PROBLEMS


16. CUSTOMARY PROBLEMS


17. CUSTO
MARY
PROBL
EMS
TABLE R-3
HEAVY-DUTY
PRODUCT
COOLERS

18. CUSTO
MARY
PROBL
EMS
TABLE R-3
HEAVY-DUTY
PRODUCT
COOLERS

19. CUSTOMARY PROBLEMS


20. CUSTOMARY PROBLEMS
