Document J3mREKyx7YarX6xo5EyxYBj7O

498 Chapter 26 1945 Guide Table 1. Average Maximum Water Main Temperatures3 Sun ClTT ' T*HP. F Stats Trap.? Ala_____ Birmingham-- Mobile_______ Ariz____ Phoenix.--------Tucson_______ Calif----- Anaheim.. Berkeley------------ Fresno.-------------- Fullerton----------- Glendale Los Angeles" Oakland------ Ontario------ Pasadena...... Pomona.. Riverside--------- Sacramento------ San Bemardino- San Diego.. San Francisco------- Whittier...------------- ColoConn- Denver----------------Bridgeport--------- Hartford New Haven---- Waterbury------ D. C.. Del.-- Fla-- Washington----Wilmington----Jacksonville---. Miami_______ Tampa------------ Ga___ Atlanta.. Macon------------- - 111. -L Chicago-------- ----Cicero Evanston-- Peoria___ Rockford-- Springfield!. Ind------ : Evansville-- Gary.. Indiaitapolis:---------- South Bend------ Terre Haute-- Iowa......... Cedar Rapids--.-- Des Moines------ Sioux City..---------- Kans.___ Concordia--s---- -- Kansas City.-----. Topeka.---------.-- Wichita! Ky.~ La___ Louisville________ Baton Rouge------New Orleans-- Me-- Md-- Mass- Augusta-------------Baltimore-----------Boston.------------- Cambridge---------- Fall River._____-- 84 73 81 80 60 69 72 75 68 75 69 70 82 75 78 72 65 82 62 75 75 66 73 76 72 84 83 , 80 80 77 87 80 76 76 . 73 67 59 82 86 . 75 80 61 82 78 77 62 57 . 86 88 72 85 85 85 60 75 80 70 76 Mass.. LowelL. Lynn.. 50 68. New Bedford____ 70 ... Salem________..... 68 Worcester____i-- 76 Mich____ Detroit___ ______ Flint-----------------Grand Rapids___ 77 70 84 Highland Park__ 77 Jackson___----- --- 56 Kalamazoo...... . 53 Lansing.________ 64 Saginaw________ 82' Minn.. DuluthMinneapolis..------- 55 80 St. PauL. 77 Mo.--. Jefferson City--- Kansas City------- 82 84 St. Joseph----- ------ 84 St. Louis.------------ 85 - Springfield----------- 70 iNebr--------: Lincoln__________ Omaha...... .......... -- 63 87 Nev----N. H-- N. J-- Reno. Manchester------------ ] Jersey City---- :-- Newark._________ 61 76 63 74 Paterson------------- . 78 Trenton_____ 79 N. Y_____ Albany-------Buffalo______ 68 75 Jamaica.. 56 Mt. Vernon______ 74 New Rochelle------- 75 New York------------ 72 . Rochester.----- ------ 70 Schenectady.------ 60 Syracuse------1------- 74 Utica.. 69 Yonkers_______ -- 70 N. C,, Asheville.----- ---! Charlotte------------ 74 ' 85 Winston-Salem-- 82 N. M.. Ohio--. Albuquerque------Akron___________ Canton... 65 76 50 Cincinnati___.-------- 84 Cleveland_________ 74 Columbus.-------------- ' 82 Dayton______ 60 Lakewood:________ : 82 Springfield-....... .'-- 72 Toledo.------------------ 83 Okla-- Oklahoma City-----Tulsa, 82 85 Ore.... Eugene Portland---------------- 60 64 ,. These averages taken from various city water main locations, with some actual values slightly higher and some lower than values shown.. ' Spray Equipment 499 Tablb. 1. Average Maximum Water Main Temperatures*1 (Concluded) Stats Cirr Tamp. F Stats ClTT Tnc*. P. Pa Erie. __ __ Johnstown- McKeesport_______ R. I______ Providence.________ S. C Greenville__ ___ Spartanburg.___ ___ S. Dak-- Rapid City.________ Tenn_____ Chattanooga:_______ Knoxville_______ . Memphis. NashviUe-- __ Austin......... i..,,. ___ Beaumont. ............ Dallas- ................. Fort Worth: Galveston____ _____ Utah_____ Port Arthur_______ San Antonio. .......... Wichita Falls.____ Salt Lake City.____ 74 75 74 82 83 81 68 80 81 78 55 84 89 . 70 90 65 90 86 86 . 84 90 84 83 76 85 . 44 60 Va. Lynchburg________ Norfolk.___________ Wash_____ Olympia.................... W. Va Tacoma. _ . __ __ Huntington_____ Wheeling____:______ Wis_______ LaCrosse.MaHisnn Milwaukee__ ;______ Racine.-- ._ __ __ PBOVCtCB Alta______ Calgary.: Rr Ont_______ London. __ Toronto P. E. . Charlottetown_____ -Quebec__............... -- 75 73 80 58 62 51 57 85 78 78 54 58 70 68 64 60 50 63 .48 78 68 These averages taken from various dty water main locations* with some actual values slightly higher and some lower than values shown. , ordinarily by first transferring the heat of the gas to water in a heat exchanger, from which water it may then be dissipated in a number of ways. If the plant is situated on the banks of a river or lake, an intake ;may be taken up-stream or at a considerable distance from the discharge, to prevent mixing of the heated discharged water with the inlet water. If the source of cooling water is a city supply, or a well, the discharge water may be run into the nearest sewer or open waterway. Lacking an unlimited water supply, or in cases where purchased water is too expensive or where the water available contains dissolved salts which would form scale on the heat-exchanging apparatus, it is necessary to recirculate the water, and to cool it after each passage through the heatexchanger by exposure to air in an atmospheric water cooling apparatus. Air has a capacity for absorbing heat from water when the wet-bulb temperature of the air is lower than the temperature of the water with which it is in contact. The rapidity with which this transfer of heat occurs depends upon (1) the area of water in contact with the air, (2) the relative velocity of the air and water, and (3) the difference between the wet-bulb temperature of the air and the temperature of the water. The rate of heat dissipation is influenced further by many small factors1 prevailing upon these primary ones, and complicating the design. Selection of equipment for any specified service must ultimately rest in over-all economic considerations established from reliable performance data. ^Cooling Tower Performance Studies, by L. M. K. Boelter (A.S.H.V.E, Transactions, VoL 45, 1939, p. 615). r : .. te'i I ii ri iXi 1