Document oeq8dX3EggdEdwnJ071NZYX8g

American Society of Heating and Ventilating Engineers Guide, 1929 Table 3. Climatic Conditions Compiled from U. S. Weather Bureau Records Col. A Col. B Col. C Col. D . Col. E Col, F State City Average TempOct. istMay 1st Lowest Tempera ture Average Wind Vel ocity. Dec., Jan., Feb., Miles per Hr. Direction of Prevail ing Wind, Dec., Jan., Feb. . Ala. Birmingham.--._____________ _ ArW. Gal Flagstaff............ .................... .......... Little Rock._________ __________ Los Angeles-___________________ Grand Junction _________ ___ __ Conn________ New Haven_____ _ nC Fla. Ga Savannah................. ....................... Idaho._______ Lewiston......... ................................ Pocatello.......................................... 111.................... Chicago____________ -................... Springfield. .............. : ............... Ind. Evansville.-..................................... Sioux City....................................... Kans________ Concordia........................................ Dodge City... -.......................... . Ky................ Louisville................................ ......... I .a. Shreveport....................................... Me___ __ ___ Eastport........................................... Portland..-................. -................... Md.,,.............. Mass............... Boston.-........................................... Mich. Detroit-.......... .. ............................. Marquette......................... ............ Minn.____ __ Duluth.i.............................. Minneapolis................. ,,................. Miss...... ......... Mo.................. St. Louis... ........'i..........- __ i__: Springfield.... ................................... Mont- ...... Havre-............................................. Nebr............... North Platte.-........ ........................ Winnemucca................................ . N. H.............. Concord............................. .............. N. J................ N. Y.......,....... Buffalo. _ ..................................... New York. -............................... .... N. M.... ...... Santa Fe.......... ................................ 57.7 53.9 59.5 34.9 49.5 51.6 54.3 58.6 39.3 39.2 38.0 43.2 61.9 51.4 58.4 42.5 36.4 36.4 39.9 40.2 44.1 33.9 32.1 38.9 40.2 45.2 61.5 56.2 31.1 33.6 43.6 37.6 29.1 35.4 27.6 25.1 29.6 56.0 40.3 43.3 43.0 34.7 27.7 37.0 34.6 39.6 37.9 33.4 41.6 35.1 34.7 40.3 38.0 -i -10 16 -25 -15 -12 29 . 28 -29 -16 -14 -15* 10 --8 .8 -13 -20 -23 --24 -25 -15 --32 -35 -25 .--26 -20 '7 -5 -23 -17 -7 -13 -27 -24 -27 -41 -33 -1 -24 -22 -29 . -49 -57 -29 -35 --7 . -28 -35 -7 --24 -14 -6 -13 8-3 N ' 8.6 N 3.9 E 6.7 SW 8.0 E 9.9 NW N NE 7.4 S 5.6 SE 9.3 N 7.3 NW 8.2 NE 11.8 NW 8.3 NW 4.7 E 9.3 SE 17.0 SW 10.2 11.8 sNW 8.4 S 6.1 NW 12:2 NW 7.3 N 10.4 NW 9.3 SW 9.6 N 7.7 SE 13.8 W 10.1 NW 7.2 NW 11.7 11.3 W w 13.1 SW 11.4 NW 11.1 SW 11.5 NW , 7.6 SE 9.1 NW 11.8 NW 11.3 SE w 8.7 . SW 10.9 N 9.0 w 9.9 SE 9.5 NE- 6.0 NW 10.6 79 17.7 sNW w 13.3 NW 7.3 NE 8 Chapter I--Heat Lossfes from Buildings Table 3. Climatic Conditions Compiled from U. S. Weather Bureau Records-- (Continued) Col. A State Col. B City Col. C Average Temp.. Oct. 1stMay 1st Col. D Col. E Col. F Lowest Tempera ture Average Wind Vel ocity Dec., Jan., Feb., Miles per Hr. Direction of Prevail ing Wind, Dec., Jan., Feb. N. C------------ Ohio..... ......... Pc RT 9C cn . Vt........ .......... V* Wash. W. Va______ Wifi. Raleigh....;_________ __ ________ Wilmington.................... ................. Devil's Lake. .......... ................ ..... Cleveland......................................... Columbus............................ ............ ' Portland........................................... Pittsburgh. ^ ................................. Columbia......................................... Rapid City........ ......................... . Memphis................................... ...... Fort Worth. .................................. San Antonio............................... ..... Salt Lake City. ........................ ..... Burlington. ............................. Lynchburg....................................... Richmond--........................ ............. Elkins. ..................................... Parkersburg..................... J.............. La Crosse......................................... Milwaukee.............................;......... Lander............... -............................ 49.7 53.1 24.5 18.9 36.9 39.9 48.0 34.1 45.9 41.9 40.8 37.6 56.9 53.7 28.1 32.3 47.0 50.9 53.0 54.7 60.7 38.1. 40.0 29.3 49.1 45.2 47.4 45.3 37.5 38.8 41.9 28.6 31.2 33.0 31.0 28.9 -2 5 -45 -44 -17 -20 -17 -20 -2 -6 -20 -9 7 -2 -43 -34 -16 -9 -2 -8 4 -24 -20 -27 2 -7 . -3 3 -30 -21 -27 -36 -43 -25 -45 -36 7.3 8.9 11.4 14.5 9.3 12.0 6.0 6.5 11.0 13.7 14.6 11.0 8.0 11.5 7.5 6.5 9.6 10.5 11.0 8.2' 8.9 4.9 12.9 9.0 5.2 7.4 9.1 4.8 6.6 12.8 5.6 11.7 5.3 3.0 SW SW NW w SW SW N SE S NW NW NW N NE ' NW W SW NW NW NW N W SE S N NW S SE SW W S SW NW W NW NE Transmission Coefficients By means of suitable tests on actual wall, roof, floor and ceiling con structions, heat transmission coefficients may be determined directly, or they may be computed if certain physical constants are known. If tests are made to. determine heat transmission coefficients, the inside and out side air temperatures should correspond with those actually existing in heating practice, and the atnount of air movement, both on the inside and outside of the test wall, should be definitely stated in reporting the co efficients. Since actual temperature differences vary widely in different parts of the country, it is desirable to adopt some standard basis for testing, such as 80 deg. inside and 0 deg. outside, and in very precise work 9