AV IOTIIA rT be FA Thesis aKa Breas ne Plant PHRULOsaTeysa'aTtCcMMAVOLO)ER W.C. Strand R&.8S. Newton 190 Ney GENVOORD & CO. ¢ 7 BINDERS AND BLANK Book MAKERS, NGING, - MICH. THESIS| This thesis was contributed by Mr. R. 3. Newton under the date indicated by the department stamp, to replace the original which was destroyed in the fire of March 5, 1916. (Pew eer car: wrive.smwrens | a a re Pon , : ~~ so ay | bon, vue a tc UG . ; CCT 4 1919 DEPARTMENT or CIVIL Eto" ree Maat Mamaia efor ee THESIS Test_ of Lighting Plant at Jonesville, 'ichircan, We Ce. STRAND. | Re Se Not CN, SO ad THESIS Opjects of Testi- First: To determine the cost per Kilowatt in terms of coel. Second: To find the amount of water evaporated per # of coal. Third: To find water consumption per H. P. per hr. of engine. Fourth: To find thermal efficiency of engine. Fifth: To find the efficiency of the engine and dynamo taken in combination. Sixth: To find the efficiency of the dynamo. The Jonesville lighting plant 1s owned and operated by the village of Jonesville. It consists of two Mansfleld Machine Worxs' horizontal tubular boilers, one Stillwell-Bierce and Smith-Vale duplex feed punp, one Cookson feed water heater, one 16 x 36 Bates,Corliss engine and one 100 K.W. Warren Alternator. The plant also includes two Stillwell-Bierce and Smith-Vale fire puzps rated at 164,000 gal., neither of these pumps being run during the test. Boilers, In the plant are two l‘ansfield Machine Vorks' horizontal tubular boilers each 16 ft. long and with a diameter of 60 inches. These boilers are connected by a six inch header. They are set in brick arches with a straight front according to the usual custom. The boilers are hand fired, only one being used at a time. The feed water is suprlied by a 1" pressure main connected to the fecc water heater and is regulated by means of a float and valve. The feed water is heated by the exhaust steam. The water is pumped from the feed water heater into the boiler by a Stillwell-Bierce and Smith- Vale feed pump. The boilers are also supplied with a No. 4 U.S. injector which can_be used in case of emergency. PAARL Fad SON a The following dimensions were taken by actual measurement, as required by the A, S. Me E. in report of boiler trials. The No. 1 Boiler was used. Diam. of shell 60 in. Length of shell 16 ft. No. of tubes 52 Diam. of tubes 4 in. Length of tubes 16 ft. Length of furnace § ft. width of furnace 5 ft. Kind of grate bars Plain 8tationery. Width of air spaces 1/2 in. Length of air spaces 2 in. No. of air spaces (each bar) 75 Ratio of area of grate to area of air spaces 1:25 Area of chimney 4.89 sq. ft. Height of chimney above grate 69.5 ft. Length of flues connecting to chimney 16 ft. Area of flues connecting to chimney 4 sq. ft. Governing proportions of boiler. Grate surface | 25 sq. ft. Heating surface (water ) : 969.7 sq. ft. Area of draught through tubes 4.25 sq. ft. Ratio of grate to heating surface 1:38.75 Ratio of least Graught area to grate 1: 5. 9 Ratio of least draught ares to total heating surface 1:228 Water space 164.16 cu. ft. Steam space 2.0f Cu. ft. Ratio of grate to water space 1:26.56 Ratio. of grate to steam space 1:33.28 Grate surface 5 ft. long,5 ft. wide, arca 25 sq. ft. Water heatins surface 969.7 so. ft. Ratio of water heatins surface to grate surface 1:56.7 Engine. The engine is a 16 x 36 Bates Corliss made by the bates Machine Coe, Joliet, J1ll. A]l the following dimensions were taken ‘vy actuel measurencnt: Length of cylinder 56 in. Dianeter of cylinder 16 in. Diameter of steam pipe 4~1/2 in. Length of steam pipe 45 ft. Diameter of exhaust pipe 6 in. Length of exhaust pipe 67 ft. Diameter of piston rod 3 ine Diameter of crank shaft. &.5 in. Diameter of fly wheel 12 ft. Width of face of fly wheel 23e5 in. Width of belt 18 in. Thickness of belt 7/16in. RePeile aA Ratio of crank to connecting rod 12s Age of engine R years. “ngine runs under Cylinder Lubricator Detroit Capacity one quart No. of drops of o11 fed to cylinder per min. 6 Engine exhausts into Cookson feedwater heater. No. of turns in steam pipe 2 No. of turns in exhaust pipe 6 Steam pipe lagged with asbestos. Cylinder legged with wood and asbestos. Exhaust steam used to heat feed water. Temperature of feed water before entering heater 60.05 F. Temperature of feed water aftor leaving heater 201.1 F. No. of boilers: 2. One used. Rated at C@ HP. Boller pressure per gauge 85.82 “ind of coal used, Averasce consumption of coal per hour 50¢ Apparetus, The coal was weighed on a set of Buffalo stendard scales, which were carcfully tested before wsing. The feed water was measured by an Tmnire hot water meter connected in a br~-pass in feed pipe between feed pump and boiler, The meter was calibrated after the test and found to be absolutely all right. Four thermometers were used. Two for indicating temperature of feed water and the other two used for determing the temperatures of the boiler room and outéide atmosphere respectively. The temperature of the feed water was taken between foed pump and water meter also at a point in the cold water main near the feed water heater. The quality of the steam was determined by means of a Carpenter's separating Calorimcter vlaced about 1° inches above the throttle valve on the engine. The steam used by the instrument wac allowed to wo dtrect into the atmosphere. The gauge on the Calorimeter was Ccalivrated before test anc found to be correct for stoam pressures from 724 to 90/1, thorofors, no corrections wore necessary, Tho indicator used was a Thompson with a 80# spring; the spring boing carefully calibdrated before using and was found to read correctly. The indicator was connected to each end of the cylinder by a 1/2 inch steam pipe and a three way cock. b . - -. . 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