2009 ASHRAE Handbook - Fundamentals (SI)
© 2009 ASHRAE, Inc.
MANILA, Philippines Lat:
14.58N
Long:
120.98E
Elev:
13
StdP:
101.17
Time Zone:
8.00 (CHN)
Period:
82-06
WMO#:
984250
WBAN:
99999
Annual Heating and Humidification Design Conditions Coldest Month
1
Heating DB 99.6%
99%
DP
23.1
23.8
16.9
Humidification DP/MCDB and HR 99.6% 99% HR MCDB DP HR
12.1
26.8
17.8
12.8
MCDB
Coldest month WS/MCDB 0.4% 1% WS MCDB WS MCDB
26.7
9.1
28.8
7.6
MCWS/PCWD to 99.6% DB MCWS PCWD
28.0
2.0
0
Annual Cooling, Dehumidification, and Enthalpy Design Conditions Hottest Month
Hottest Month DB Range
DB
5
5.3
34.5
0.4% MCWB
DP
0.4% HR
MCDB
27.2
23.0
30.8
26.3
Cooling DB/MCWB 1% DB MCWB
33.8
26.3
Dehumidification DP/MCDB and HR 1% DP HR MCDB
26.7
22.3
30.4
2% DB
MCWB
33.1
26.2
0.4% WB MCDB
28.2
32.0
DP
2% HR
MCDB
Enth
26.4
21.9
30.1
90.8
Evaporation WB/MCDB 1% WB MCDB
27.7 0.4% MCDB
32.0
31.5
MCWS/PCWD to 0.4% DB MCWS PCWD
2% WB
MCDB
27.5
31.2
Enthalpy/MCDB 1% Enth MCDB
88.9
31.7
4.4
140
Enth
MCDB
Hours 8 to 4 & 12.8/20.6
87.3
31.3
0
2%
Extreme Annual Design Conditions
1%
2.5%
5%
Extreme Max WB
9.9
7.8
6.3
31.3
Extreme Annual WS
Extreme Annual DB Mean Standard deviation Min Max Min Max
19.0
36.8
1.9
1.2
n=5 years Min Max
17.6
37.7
n-Year Return Period Values of Extreme DB n=10 years n=20 years Min Max Min Max
16.5
38.4
15.5
39.1
n=50 years Min Max
14.1
40.0
Monthly Climatic Design Conditions
Tavg
Annual
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
28.5
26.8 1.05 0 0 521 263 2505 527
27.5 1.16 0 0 490 257 2657 751
28.6 1.21 0 0 577 319 3772 1441
30.1 1.10 0 0 602 352 4724 2344
30.2 1.31 0 0 628 369 5054 2597
29.5 1.42 0 0 584 334 4328 1978
28.5 1.28 0 0 574 316 3781 1419
28.3 1.25 0 0 567 308 3588 1229
28.3 1.16 0 0 549 299 3474 1192
28.5 1.09 0 0 572 314 3751 1369
28.1 1.13 0 0 544 294 3356 1117
27.1 1.19 0 0 529 271 2733 644
31.4 24.6 30.2 24.3 29.6 24.2 29.0 24.0
32.4 24.5 31.6 24.4 30.9 24.3 30.1 24.2
34.0 25.1 33.0 24.8 32.2 24.8 31.5 24.8
35.2 25.8 34.3 25.7 33.5 25.6 32.8 25.6
35.3 26.3 34.4 26.4 33.8 26.5 33.0 26.5
35.1 27.4 33.9 27.2 32.9 27.0 32.1 26.8
33.5 27.3 32.4 27.1 31.6 26.9 30.9 26.6
33.0 27.2 32.1 27.1 31.3 26.9 30.6 26.6
33.1 26.8 32.1 26.8 31.3 26.6 30.6 26.5
33.1 26.5 32.1 26.4 31.4 26.2 30.7 26.1
32.7 25.9 31.8 25.7 31.1 25.6 30.4 25.5
31.9 25.1 30.8 24.8 30.0 24.7 29.3 24.4
26.0 29.5 25.5 29.0 25.0 28.6 24.6 28.2
26.7 29.9 25.9 29.6 25.3 29.1 24.9 28.8
28.0 30.6 26.8 30.5 26.1 30.2 25.6 29.9
28.0 32.3 27.2 31.8 26.7 31.5 26.4 31.3
28.6 32.9 28.0 32.3 27.5 31.9 27.2 31.5
28.9 33.5 28.1 32.2 27.5 31.5 27.1 31.0
28.6 31.8 27.7 31.1 27.3 30.7 26.9 30.3
28.0 31.6 27.5 30.9 27.2 30.4 26.9 30.0
28.0 31.1 27.4 30.6 27.1 30.3 26.7 29.8
28.1 31.2 27.5 30.7 27.0 30.2 26.6 29.7
27.7 31.0 27.0 30.3 26.5 29.9 26.1 29.4
26.7 30.3 26.1 29.4 25.6 28.8 25.1 28.2
4.4 5.2 2.8 4.5 3.0
5.1 6.1 2.9 5.1 3.1
5.6 6.6 2.9 5.6 3.3
5.7 6.8 2.9 5.8 3.1
5.3 6.4 2.7 5.4 2.9
5.0 6.2 2.4 5.5 2.7
4.5 5.6 2.5 5.0 2.6
4.0 5.2 2.4 4.7 2.4
4.4 5.5 2.4 4.9 2.6
4.4 5.4 2.4 4.7 2.6
4.6 5.5 2.6 4.8 2.8
4.3 5.1 2.5 4.5 2.8
0.433 2.196 861 143
0.431 2.211 880 146
0.466 2.086 855 168
0.509 1.979 814 187
0.492 2.049 815 172
0.502 2.015 797 175
0.503 2.019 799 175
0.535 1.912 783 197
0.492 2.063 821 170
0.467 2.134 835 155
0.442 2.205 845 140
0.433 2.210 849 138
Sd Temperatures, Degree-Days and Degree-Hours
HDD10.0 HDD18.3 CDD10.0 CDD18.3 CDH23.3 CDH26.7 0.4%
Monthly Design Dry Bulb and Mean Coincident Wet Bulb Temperatures
0 0 6737 3695 43723 16608 DB MCWB DB
2%
MCWB DB
5%
MCWB
10%
DB MCWB WB
0.4% Monthly Design Wet Bulb and Mean Coincident Dry Bulb Temperatures
MCDB WB
2%
MCDB WB
5%
MCDB WB
10%
MCDB MDBR
Mean Daily Temperature Range
5% DB 5% WB
Clear Sky Solar Irradiance
MCDBR MCWBR MCDBR MCWBR taub taud
Ebn,noon Edh,noon
CDDn Cooling degree-days base n°C, °C-day CDHn Cooling degree-hours base n°C, °C-hour DB Dry bulb temperature, °C DP Dew point temperature, °C Ebn,noon } Clear sky beam normal and diffuse horiEdh,noon } zontal irradiances at solar noon, W/m2 Elev Elevation, m Enth Enthalpy, kJ/kg HDDn Heating degree-days base n°C, °C-day Hours 8/4 & 12.8/20.6 Number of hours between 8 a.m. and 4 p.m with DB between 12.8 and 20.6 °C HR Humidity ratio, g of moisture per kg of dry air
Lat Long MCDB MCDBR MCDP MCWB MCWBR MCWS MDBR PCWD
Latitude, ° Longitude, ° Mean coincident dry bulb temperature, °C Mean coincident dry bulb temp. range, °C Mean coincident dew point temperature, °C Mean coincident wet bulb temperature, °C Mean coincident wet bulb temp. range, °C Mean coincident wind speed, m/s Mean dry bulb temp. range, °C Prevailing coincident wind direction, °, 0 = North, 90 = East
Period Years used to calculate the design conditions Sd Standard deviation of daily average temperature, °C StdP Standard pressure at station elevation, kPa taub Clear sky optical depth for beam irradiance taud Clear sky optical depth for diffuse irradiance Tavg Average temperature, °C Time Zone Hours ahead or behind UTC, and time zone code WB Wet bulb temperature, °C WBAN Weather Bureau Army Navy number WMO# World Meteorological Organization number WS Wind speed, m/s
