Document G6vwND2kEbOgZvw8qJLobQJkq

452 CHAPTER 18 1955 Guide Table 9. Degree-Oafs for Industrial Heating in Various Cities of thb-:. United States* ,k Annual Totals for a Normal Heating Season- State Citt Dbobeb-Dats 55F State Degree-Dati 45F Base 55F Bass Alii.. Aril.. Ark... Cal-. ColConn.. D. C.. Fla.... Ga... Idaho.. HI.. Ind.. Ia.... Ky*. Ia... Md... Mich.. Birmingham.............. Mobile.............................. Montgomery............. i 853 245 504 Phoenix.. Yuma___ 229 37 Fort Smith.................. Little Rock.................... 329 1478 276 1188 Eureka............ ............. Fresno.............................. Independence............... Los Angeles.................... Red Bluff............. Sacramento.................... San Diego;..................... San Francisoo............... Ran Luis Obispo.'........ 1328 718 1930 17 822 803 26 384 230 Miss.. Mo..; Denver.................... Grand Junction.. Pueblo................... Meriden.......... New Haven.. 1548 1757 1499 1769' 3440 3433 3261 734 'Neb.. 3237 Washington.. 1041 Pensacola-- Atlanta....... Augusta.... Macon......... Savannah.. Boise.................................... Lewiston............................ Pocatello............................ JW5 1034 2161 2487 127 1165 661 711 231 2814 2688 4140 |Nev... |n. h.. N. J... iN. M.. In. y.. Cairo............. Chicago......... Springfield. 749 1969 1677 2119 3743 Evansville.... Indianapolis.. 799 1397: Charles City......... Davenport............. Des Moines............ Dubuque................ Keokuk................... Sioux City.............. Concordia-- Dodge City.. Topeka.......... Wichita........ 3370 2296 2440 1628 1926. 2894 1652 1385 1518 1152 5293 4142 4180 4468 3579 4732 2690 2962 1811 2587 N. D.. Ohio.. Lexington.. Louisville.. 2557 2294 Okla.. New Orleans. Shreveport... 30 565. Ore... Eastport... Portland... 2956 2530 5236 4572 Baltimore.. Boston........... Nantucket.. Alpena................. Detroit................ Escanaba............ Grand Haven.. Grand Rapids.. 1787 1514 3131 2240 2405 2332 3603 3419 5499 4069 5918 3435 4177 R. I... S..C... Houghton...................... . Lansing............. ........... Marquette.. ............... Port Huron.................... Saginaw............................ Sault Ste. Mane.......... 4029 2537 3713 2630 2312 4049 6112 4444 5842 4275 .'4552 6575 Duluth---------Minneapolis.. Moorhead... St. Paul........ 4419 3309 4796 2497 6774 '5417 6572 5497 Vicksburg..!. 468 Columbia--, Hannibal.-- KftiwM City.. St. Louis........ Springfield.... Havre........ Helena-- Kalispell.. Lincoln.............. North Platte. Omaha............... Valentine.------ Winnemucca... Concord............. Atlantic City.. Santo Fe........... Albany............ Binghamton.. Buffalo............. Ithaca.............. New York.... Rochester. Charlotte.. Raleigh.......... Wilmington.. Bismarck.. Williston... 1252 1635 1463 1186 982 2939 3231 2980 2745 2423 3736 2843 2874 5874 5071 5131 3023 2291 2284 2833 - 3850 4152 3982 4801 1870 3468 2646 4640 1123 2904 1634 3106 2018 2073 2359 2412 1098 2274 2341 172 229 4302 4295 4316 4023 3089 4363 4231 1388 718 1080 729 . 3831 . 4616 6468 6399 Cincinnati.. Cleveland.. Columbus.. Dayton........ Sandusky.. Toledo.......... Oklahoma City.. Baker.. . Portland... Roseburg.. Erie........... Harrisburg... Philadelphia.. Scranton......... Pittsburgh.,.. 1376 1525 1600 1487 1949 1990 600 2321 373 . 272 2337 1565 1122 1938 1377 3795 3255 3U7 3425 3757 1835 4307 1911 3837 3235 2695 3755 3028 Block Island.............. Charleston.-............ Columbia..................... Greenville............ 871 335 759 1502 ' Estimating Fuel Consumption for Space Heating 453 Table 9. Degree-Days fob Industrial Heating in Various Cities of the United States (Continued) Annual Totals for a Normal Heating Season. Deobeb-Datb 45F Base 55F Base Cm Deqbee-Datb 65F Base Huron............ Pierre............ Rapid City.. Yankton.... Chattanooga.. Knoxville........ Memphis......... Nashville........ Abilene........ Amarillo___ El Paso........ Fort Worth. Galveston.. Houston___ Palestine San Antonio. Modena.................. Salt Lake City.. 3743 .3162 5678 5234 242 431 166 1741 Wash.. 1284 419 1678 1978 1475 919 |W. Va.. 754 43 110 484 305 Wyo.. Burlington........................ Northfield,.'..................... Lynchburg.. Norfolk........ Richmond.. North Head..................... Seattle................................. Spokane............................. Tacoma............................... Walla Walla...................... Elkins............... Parkersburg.. Green Bay.. La Croese... Madison____ Milwaukee.. Cheyenne. Lander..!. 3014 3652 554 260 549 184 408 1741 507 993 1506 1147 3318 3034 3067 2657 2500 4984 7121 . 1928 1496 1895 2185 3872 2365 2565 3327 2784 5331 3992 4850 4617 4700 5450 From Degree-Day Handbook By C. Strock and C. H. B. Hotchkiss (The Industrial Press, pp. 132-134). industrial degree-days When estimating the heating requirements of warehouses, factories, and other buildings where the inside temperature to be maintained differs greatly from the usual inside temperature range of 68 to 72 F, it is common to use degree-days based on temperatures of 55 to 45 F. These are gen erally referred to as industrial degree-days, and are listed in Table 9 for a number of cities using both 55 F and 45 F as the base. In general, the degree-days (55 F base) are used when the temperature of the heated space is to be maintained at approximately 60 F. For an inside temperature of about 50 F, the degree-days calculated on a 45 F base should be used. The industrial degree-days are useful for estimating fuel consumption by comparison between localities in which the difference in degree-days is not too great, and where the known fuel consumption of one building may be used to determine unit consumption per degree-day. MAXIMUM DEMANDS AND LOAD FACTORS In one form of district heating rates, a portion of the charge is based upon the maximum demand of the building. The maximum demand may be measured in several different ways. It may be taken as the instantanepus peak or as the rate of use during any specified interval. One method ? to take the average of the three highest hours during the winter. These ugures are shown for a number of buildings in Detroit in Table 10.12 These maximum demands were measured by an attachment on the concnsation meter, and therefore represent the amounts of condensation through the meter in the highest hours, rather than the true rate at nich steam is supplied. There might be slight differences in these two quantities due to time lag and to storage of condensate in the system, but uerever this has been investigated it has been found to be negligible.