Document Lg486KkO8EMeK092VDMwKd4Ob

270; CHAPTER 13 1953 Guide Table 2. Summer Climatic Conditions* (Concluded)* Suggested, Design Wet-Bulb and Dry-Bulb, Temperatures Col. 1 State Col. 2 Station^ Col. 3 Col. 4 Ele . Period of vation* Record*1 Ft Col. 5 Col. 6 Col, 7 Highest TEMP; Ever Recorded4 Design Dry-Bulb Temp, on TA..C. 2\% Basis'5 Design DRy-BuLB Temp, in Common -Use1 f F F Col. 8 Design . Wet-Bulb Temp, in Common Use1 F Col. 9 Average Summer Wind Velocity* Mph . S. C...... Columbia....... CO Columbia....... .AP S. D...... Huron............. CO Huron............. AP Rapid City - - - CO Rapid City... AP Tenn.... Chattanooga.. CO Chattanooga... .AP Knoxville....... CO Knoxville....... AP Memphis........ CO Memphis........ AP Nashville....... CO Nashville....... AP Texas... Abilene........... CO Abilene........... AP Amarillo......... CO Amarillo......... AP Austin............... CO Austin............... .AP Brownsville... CO Brownsville.... AP Corpus Christi CO Corpus Christi. AP Dallas............. CO DoHa . . .AP Del Rio.......... m El Paso............. CO El Paso............. .AP Fort Worth.. .. CO Fort Worth.... AP Galveston........ CO Galveston........ AP Houston........... <50 Houston........... AP Palestine.......... CO Port Arthur... CO Port Arthur.... AP San Antonio... .CO San Antonio... AP Waco.................. AP Wink..;........... AP Utah.... Milford............. AP Modena............ CO Salt Lake City..CO Salt Lake City..AP Vt........ m Burlington....... AP Va......... .CO Lynchburg....... CO Lynchburg....... AP Norfolk............. CO Richmond........ CO Richmond....... AP Roanoke........... .AP Wash.... Ellensburg....... AP North Head... CO Seattle.............. CO Seattle.............. .AP Spokane........... CO Spokane........... AP Tacoma............ CO Tatoosh Island.CO Yakima............ CO Yakima............ AP W. Va... Parkersburg... (X) Wise.... Green Bay....... CO La Crosse......... CO Ta Crosse......... .AP Madison ......... (X) Madison........... AP Milwaukee....... (X) Milwaukee....... AP Wyo....... Cheyenne......... (X) Cheyenne......... AP Lander.............. CO Lander.............. AP Rock Springs . .AP 401 227 1342 1287 3309 3220 952 675 1024 1007 348 267 714 610 1748 1756 3686 3595 625 625 140 25 21 45 732 520 1020 3792 3956 708 728 128 9 198 73 555 64 21 770 800 513 2811 5095 5472 4346 4254 335 644 951 91 180 172 1194 1731 199 104 47 2030 1974 279 110 1160 1066 685 598 725 677 1008 884 744 707 6144 6161 5448 5568 6746 1887-1947 -I939-I947d 1881-1938d 1938-1947 1888-1947 1939-1947 1879-1947 1940-1947 1871-1942d 1942-1947 1872-1941d 1941-1947 1871-1947 1939-1947 1885-1944d 1940-1947 1892-1941 1941-1947 1897-1942 1942-1947 1922-1943d 1943-1947 1887-1942 1943-1946 1913-1940 1940-1947 1905-1947 1887-1942 1939-1947 1898-1939 1940-1947 1871-1947 1939-1947 1888-1947 1932-1947 1881-1947 .1917-1947 1944-1947 1885-1941d 1942-1947 1931-1947 1935-1939 1935-1939 1901-1947 1874-1947 1928-1947 1943-1947 1874-1944 1944-1947 1871-1947 1897-1947 1920-1947 1935-1939 1935-1939 1884-1947 1890-1947 1928-1947 1881--1941" 1941-1947 1897-1947 1883-1947 1928-1946 1944-1947 ,1888-1947 1886-1947 1872-1947 1943-1947 1858-1947 1935-1939 1870-1947 1927-1947 1873-1935 1935-1947 1891-1946 1936-1947 1932-1942 106 104 111 no 106 108 . 103 105 104 102 106 105 106 104 111 109 . 107 106 109 104 102 100 105 101 no 109 111 106 104 112 no 101 101 108 105 108 102 98 107 104 111 no 103 101 105 106 101 106 100 105 107 104 103 105 97 100 99 108 104 98 88 no 103 106 104 108 96 107 106 105 106 100 100 102 97 98 94 94 96 97 96 99 97 93 98 98 99 94 95 92 90 90 si 92 6i 89 87 89 87 95 " 95 95 95 95 95 95 ioo io6_ ioo ioo 95 ioo ioo 100 ioo 95 95 ioo 95 ioo 75 75 70 76 75 78. 78 74 .---72 78 80 80 78 78 69 78 80 78 78 79 78 10.3 7.9 5.6 5.7 7.3 li.8 7.6 9.3 8.4 9.5 9.7 8.8 7.8 95 65 95 65 9.8 90 73 8.5 95 75 95 78 , lo.i 95 78 6.4 95 76 85 65 85 65 7.7 93 65 6.5 85 64 95 65 95 75 5.2 95 75 9.2 95 75 6.4 95 75 7.9 95 75 9.8 95 65 9.2 95 65 Hs] '-.S'jsH Cooling Load 271 NOTES FOR TABLE 2 a Data compiled from U.-S. Weather Bureau Data and various other sources: b Column 2. The station designation AP or CO indicates airport or city office station, respectively. Column 3. The elevations marked c are ground elevations of the station. All other elevations given are the actual elevations of the thermometer bulb above mean sea level, corrected to 1948. ' d The periods of record indicated apply only to the highest temperature ever recorded shown in Column 5, and do not necessarily include ail of the summer months of the first year indicated. The last year indi cated includes July or August, except those marked d which terminate prior to July of that year. - * It should be noted that Column 6 applies only to airports, as these data for city stations are not avail able at this time. The temperature shown is the maximum hourly outdoor temperature which has been equalled or exceeded 24 percent of the total hours of June, July, August and September for the 5-year period 1935-1939, inclusive. It is pointed out that in most cases the airport stations are outside of the city, and that these data would apply primarily to rural areas. 1 Columns 7 and 8 record wet and dry-bulb temperatures in use by A.S.H.V.E. Members as reported by Chapter Secretaries for various stations. Where such values were not available, the design-temperatures published by A.C.R.M.A., or obtained from various other*sources, have been inserted. * The average wind velocities indicated in Column 9 were furnished by the U. S. Weather Bureau, cor rected to 1947. In general these velocities are averages for the months of June through September. b The bulletin published by A.S.H.V.E. for the annual weather data of Detroit indicates 73 Fas thedesign wet-bulb temperature which has been equalled or exceeded 5 percent of the hours for period 1935-1939. 1 Blank spaces indicate data not available. Table 3. Ventilation Standards* Application Smoking Cfm per Person** Cfm per SQb Ft of Floor Recommended Minimum* , Minimum* Barber Shops......................................... Considerable---Beauty Parlors....................................... Occasional......... 20 30 10 15 10 10 25 6.33 7i 1n0 Directors' Rooms.................................. Extreme............. 50 40 7* 50 ,, 20 25 5 30 6.25 0.05 Drug Stores........................................ Considerable___ Factories*1, 1............... Funeral Parlors...................................... None.................. Garagesd.............. 10 10 7* 10 7* 7J o.io 5n i!o` Laboratories. Some.................. 30 20 30 20 2.0 25 0.33 10 25 6.33 4.0 2.0 15 Meeting Rnnm Offices General Private....................... Restaurant Cafeteria Considerable.... Dining Room................... Considerable___ 50 15 25 30 12 15 30 1.25 10 15 6.25 25 0.25 10 12 School RV>mod Shop. Retail Theater** ...................................... theater 1 diets0 (Exhamtl None.................. Qnmo io 7$ 15 7i 10 2.6 ---------- Taken from present-day practice or large air conditioning companies. b This is contaminant-free air ana may be either outdoor air or recirculated air which has been appropriately purified. c When minimum l8**86"' the larger of the two. 4 See local codes which may govern. e May be.governed by exhaust. May be governed by special sources of contamination or local codes. * All outside air recommended to overcome explosion hazard of anesthetics. See National Board of Fire Underwriters' pamphlet No. 56. INSTANTANEOUS HEAT LOAD The total cooling load is frequently divided for convenience into two components, sensible heat and latent heat. While this subdivision is not imperative, past practice has found it convenient. A gain of sensible heat is considered to occur when there is a direct addi-