Document RjbeKM3e72LggbonDwdVnLNZ7

256 CHAPTER 12 1950 Guide Cooling Load 257 Table 3. Summed Climatic Conditions* (Concluded) Suggested Design Wet-Bulb and Dry-Bulb Temperatures Con. 1 Stats Col. 2 Station1* Con. 3 Ele vation Ft Col. 4 Period op . Record Col. 6 Highest Temp. Ever corded* F Col. 6 Cou 7 Cou 8 Cou 9 Design DbtBulb Temp, on T.A.C. 2*4% Basis Design DhtBulb Temp, in Common UbeT Design WetBulb Temp. in Common Use* Aver age Summer Wind Veloo. ITT* *F F F Uph is. C............ Columbia........... CO Columbia........... ..AP S. D........... Huron................... ..GO Huron................ AP Rapid City......... ..CO Rapid City......... ..AP Tenn.......... Chattanooga....... ..CO Chattanooga........ ..AP Knoxville............. ..CO Knoxville............. ..AP Memphis............. (X) Memphi*............. ..AP Nashville............. <X> Nashville............. ..AP ..CO Abilene................. ..AP Amarillo............. CO Amarillo............... ..AP Austin................... ..CO Austin................... ..AP Brownsville......... CO Brownsville......... ..AP Corpus Christi... (X) Corpus Christi... ..AP DallAA.................. <x> Dallas................... ..AP Del Rio................ .CO El Paso................ .CO El Paso............... . ..AP Fort Worth.......... .CO Fort Worth......... .AP Galveston............ CO - Galveston............. ..AP Houston............. (X) Houston........... ..AP Palestine.............. .CO Port Arthur......... ,co Port Arthur......... ..AP San`Antonio........ .CO San Antonio....... ..AP Waco.................. ..AP Wink..................... AP Milford................. ..AP ..............., CO Salt Lake City... ..CO Salt lake City... ..AP Vti.............. Burlington........... .CO Burlington........... ..AP Wash.......... W. Va........ Lynchburg.......... .CO Lunchburg........... ..AP Norfolk................ ..CO Richmond........ .CO Richmond........... ..AP Roanoke............... AP Ellensburg........... ..AP North Head........ <X> Seattle.................. ..GO Seattle................... ..AP Spokane............... (X) Spokane.:............ ..AP Taco*"*................ (X) Tatooeh Island... (X) Yakima................ GO YKnm.;........... . ..AP Parkersburg....!. <x> 401 227 1842 1287 8309 8220 982 675 1024 1007 848 267 714 610 1887-1947. 1939-1M71* 1881-1938* . 1930-1947 1888-1947 1939-1947 1879-1947 1940-1947. 1871-W4211 1942-1947. 1872-1941** 1941-1947 1871-1947 1939-1947. 108 104 111 110 .106 .108 103 105 104 102 108 105 106 104 1756 1940-1947 8686 1892-1941 3595 1941-1947 625 1897-1942 625 1942-1947. 140 I923-19481 25 : 1948-1947 21 1887-1942 45 1943-1946. 732 1913-1940 . 520 1940-1947 1020 1905-1947 3792 1887-1942 3956 1939-1947 708 1898-1939 728 1940-1947 128 1871-1947 9 : 1939-1947 198 1888-1947 78 1932-1947 655 1881-1947 64 1917-1947 21 1944-1947. 770 1882-1641'* 800 1942-1947 618 1931-1947 2811 1935-1939 109 107 106 109 104 102 100 105 101 HO 109 111 166 104 112 110 101 101 108 105 108 102 98 107 104 111 110 5472 4346 4254 409 835 1901-1947 1874-1947 1928-1947. 1884-194^ 1943-1947 101 105 100 100 101 644 951 91 180 172 1194 1781 199 104 47 2030 1974 279 no 1160 1066 685 1874-1944 106 1944-1947 100 1871-1947 105 .1897-1947 .107 1929-1947 104 1935-1939 103 1985-1939 105 1884-1947 97 1890-1947 100 1928-1947. 99 1881-1941d . 108 1941-1947 104 1897-1947 98 1883-1947 88 1928-1946 110 1944-1947 103 1888-1947 108 94 94 96 97 96 . 99 67 68 98 98 69 94 65 92 90 90 81 92 95 95 95 65 65 95 100 100 loo 100 95 100 100 100 100 63 65 100 95 100 65 96 60 95 95 65 95 85 85 93 85 65 95 10.3 70 7.9 76 5.6 75 5.7 78 7.8 74 72 11.8 7.0 78 9.8 28 69 8.4 9.5 80 6.7 78 8.8 78 79 78 7.8 65 65 9.8 73 8.5 75 10.1 78 6.4 76 65 65 7.7 65 6.5 64 65 75 . 6.2 NOTES FOR TABLE 3 * Data compiled from U. 8. Weather Bureau Data and various other souroes. b Column 2. The station designation AP or CO indicates airport or city office station, respectively. Column 8 The elevations marked o are ground elevations of the station. All other elevations given are theactual elevations of the thermometer bulb above mean sea level, corrected to 1948. d The oeriods of record indicated apply only to the highest temperature ever recorded shown in Column . i j. necessarily include all of the summer months of the first year indicated. The last year indi cated include 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* .. ** Ajme The temperature shown is the maximum hourly outdoor temperature which has been *rt,.|Li or 24 per cent of the total hours of June, July, August and September for the 5 year period ?mS-1939 inclusive. It is pointed out that in most cases the airport stations are outside of the city, and that <1*4* ^ould apply primarily to rural areas. I rs-.iMTwnfl 7 and 8 record wet and dry-bulb temperatures in use by A.8.H.V.B. Members as reported by rhanter 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 bulletin published by A.S.H.Y.E. for the annual weather data of Detroit indicates 73 F as the de sign wet-bulb temperature which has been equalled or exceeded 5 per cent of the hours for period 1935-1939. 1 Flpinir spaces indicate data not available. Table 4. Ventilation Standards4 Application Smoking Cfm per Person Recommended Minimum* Apartment Average.-------------------------------- Some..... ................... Deluxe- ................................ .. Some._______:_____ Occasional________ Barber Shops................... --------- --........ --. Considerable______ Beauty Parlors--................... Occasional........__ . 20 30 10 15 10 10. 25 7M 10 7M Brokers' Board Rooms. __ . . Very Heavy______ 50 20 . 25 Department Stores......... ............. None______________ Directors' Rooms--..................................... Extreme.--_______ Five and Ten Cent Stores.. ..... ____ None._____________ Garages* .............................. --................ Hi 50 10 10 10 5 30 7*4 7 5 7*4 Hospitals Operating Rooms,f.__________ None______________ Hotel Rooms. ............. .. _ Heavy____________ _Kitchens Restaurant..._____ _ Residence.____________ ____ ____ ...._....-- Laboratories*........................... .. .................. Some___.______ ____ 30 20 30 20 ' 25 10 2__5 15 Meeting Rooms,....................... .. ......... Very Heavy______ Private. _________ ____________ None--................... Private. ...... .............. . _ Considerable-- .. Restaurant Cafeteria*.. .. ...__________ Considerable_____ Dining Room*..____ _____ ___ Considerable........... 50 15 25 ' 30 12 . 15 30 10 15 , 25 10 12 School Rooms*.. ..... ................ ....... ..... None. .................... Shop. RetaiL. ....................... ...... ..... .... None-- ....... Toilets* (Exhaust)........... ...... ..................... 10 7*4 15 7M 5 10 Cfm per Sq Ft of Floor Minimum* 0.33 -. ------- --- __ 0.25 0.05 -- 0.10 1.0 2.0 0.33 0.33 4.0 2.0 -- 1.25 0.25 0.25 ----- - 2.0 4 Taken from present-day practice or large air conditioning companies. b When minimum is.used, take the larger of the tiro. eSee local codes which may govern. May be governed by exhaust. May be governed by special sources of contamination or load codes. * All outside air recommended to overcome explosion haiard of anesthetics. La Crosse............. GO 725 1872-1947 108 95 75 6^4 La Crosse......... AP 677 1943-1947 66 61 applications are summarized in Table 4. For further general applications, Mndifion............... (XI 1008 1858-1947 107 ' 95 75 7.9 Madison............... ..AP 884 1935-1939 106 86 a basis of estimating the cfm per person may be taken as: Milwaukee........... GO 744 1870-1947 106 65 . 76 9.8 Milwaukee......... AP 707 1927-1947 106 . 87 93 65 9;2 1. People not smoking......................................... 7J Recommended 5 Minimum f Cheyenne....... , AP 6161 1935-1947 100 89 Lander. lAndf - (X) 5448 1891-1946 102 AP 6568 1936-1947 97 95 . 65 2. People smoking................................................ 40 Recommenced ' 25 Aftntmum Rock Springs... ..AP 6746 1932-1942 98 87 The. cooling load due to the introduction of outside air for ventilation is