Document G6ByyQY5ynKRe5dwXZwm3kVMn

480 CHAPTER 18 > 58 Guide Table S. Degree-Days for Industrial Heating tn Various CiWes of the' United States* Annual Totals for a Normal Heating Season. State City Degbbe-Days 45F 55F Base Base State City Degree-Days 45F 55F Base.. Base Ala. Birmingham................. 6 853 Mich........... Houghton..................... Mobile....... .................. 245 ' Montgomery.............. 504 : Aiiz.;. Ark. Phoenix. .Yuma... Fort Smith. Little Rock. 229 : 37. M,nn 1478 276 1188 Sault Ste! Marie........ Cal. .Eureka........ . 1328 -Fresno.......\. . ......... 3 ' 718 Independence............. 519 1930 Los Angeles................ 17 Red Bluff.................... -'24 822 Sacramento........... San Diego................... 26 San Francisco............ San Luis Obispo..:... 230 St. Paul......................... Kansas City............ Col. Denver............... Grand Junction. 1548 3440 1757 3433 . Pueblo................ 1499 3261 Conn. Meriden....... New Haven. 734 1769 3237 D. C. .Washington 1041 2487 Fla... Pensacola.. 127 Ga... Idaho. Atlanta--< Augusta......................... Macon............................ Savannah..................... Boise.... Lewiston. Pocatello. 109 1045 1034 2161 1165 661 711 231 2814 NT J N M. 4140 111... Cairo............................. Chicago......................... Springfield.................... 749 1969 1677 2119 3743 3289 Ind. Evansville-- ............ 799 Indianapolis................. 1397 2335 2829 Ia.. Charles City........... . 3370 Davenport.................... 5293 4142 Des Moines................... 2440 4180 Dubuque.......... . 1628 - 4468 ` Keokuk........................ 1926 .3579 Sioux City................... 2894 ` 4732 ' Kan............ Concordia.1.............. .1652 - , 2690 Dodge City................ 1385 2962 Topeka.......................... ' 1518 1811 Wichita.......................... 1152 2587 Ky. Lexington. Louisville. 2557 i073 2294 4029 . 6112 3713 5842 2630 4275 2312 -4552- 4049 6575 4419 6774 3309 5417 4796 6572 2497 5497 468. 1252 2939 1635 3231 1463 2980 1186 2745 982 2423 3736 5874 2843 5071 2874 5131 3023 -3850 2291 4152 2284 3982 2833 4801 1670 3468 2646 4640 1123 2904 1634 - 3106 2018 4302 2073 4296 2359 4316 2412 4023 1098 3089 2274 4363 2341 4231 172 1388 718 229 1080 729 3831 6468 4616 6399 1376 3003 1525 3795 1600 3255 1487 3147 1949 1990 3425 3757 600 1835 La....... Me':::. New Orleans................ Shreveport.................... 30 565 Dr** Eastport.......... ........... '2956 : : 5236 Portland................-- 2530 : >'4572 . Pa. Baltimore..................... ' 986 1 -2491 ... Boston........................... '1787 ` Nantucket.................. 3m `Alpena___ ^Detroit............ Escanaba...... ........ Grand Haven-- -- Grand Rapids............. 2240. ' 3699' 2405 2332 * 5499 - 4089 `5918 : 3435 4177' R. I........ S-C-........ 2321 Portland....................... 373 ,272 2337 Harrisburg................... 1565 Philadelphia../............ 1122 - 19381377 871 Charleston....'. ... : i Greenville................. 297 4307 1911 1868 3837 .3236 * 2695 3755'. 302? 3388; - 335' 759 1503 Estimating Fuel Consumption for. Space Heating 481- Table 8. Degree-Days .for Industrial Heating in Various Cities of the , United States.(Continued) . . . .. . Annual Totals for a Normal Heating Season. .' State City , Degree-Days 45F : 55F Base Base State e-Datb :'55F Base S. D.. Pierre............................ Rapid City................... 3743 3162 2590 2898 Chattanooga................ Memphis....................... Nashville...................... 242 431 166 419 Abilene.......................... Amarillo......... Fort Worth................... Galveston..................... Palestine....................... San Antonio................. 786 1978 Salt Lake City............ 1475 '5678 5234 4628 6045 1398 1741 1284 1678 915 2220 754 43 484 305 3981 3202 Vt... Burlington.. Northfield... Va. Lynchburg.. Norfolk........ Richmond... North Head. Seattle.......... Spokane....... Tacoma....... Walla Walla. W. Va......... Elkins.......... Parkersburg. Wis.............. Green Bay.. La Crosse__ Madison....... Milwaukee.. Wyo. Cheyenne... Lander......... 3014 3652 554 260 549 184 408 . 1741 507 993 1506 1147 3318 3034 3067 2657 2500 4984 7121 1928 1496 1895 2062 2185 3672 2365 2565 3327 2784 5331 3992 4850 4617 4700 5450 *t?5?m po\/ree-Day Handbook, by C. Strock and C. H. B. Hotchkiss (The Industrial Press, 1937, pp. 132-134). Values are not coordinated with Table 2 which is from a later source. of degree-days, plant operators frequently compute each month the fuel burned per degree-day by the heating plant. The resulting unit value, by eliminating the outside temperature variable, indicates whether the operating efficiency of the plant is above or below the previous month or year. <. 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 8 for a number of cities using both 55 F and 45 F as'the base.' In general, the epee-days (55 F base) are used when the temperature of the heated space ' b 11 tna'n*-ained 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 ompanson between localities in which the difference in degree-days is not lisprFf6^' anc* TMheTe known fuel consumption of one building may be a to determine unit consumption per degree-day. maximum demands and load factors unon tK6 district heating rates, a portion of the charge' is based be the maximum demand of the building. The maximum demand may ous rCC^ 'n several different ways. It may be taken as the instantane- is to tv i,as rate * use during any specified interval. One method f5En]rpake the average of the three highest hours during the winter. These e are shown for a number of buildings in Detroit in Table 9.12