Modern Gasworks Practice

802 INDEX Coal, decomposition point of, 3S2 deterioration of, 377 distribution of carbon in, 384 for water gas manufacture, 740 grabs for, 306 humus bodies in, 358 hydrogen in, 359, 360, 385 liming of, 391, 618 methods of comparison, 364 nitrogen in, 386 nitrogenous bodies in, 360 origin and formation of, 355 oxygen absorbed by, 372 oxygen in, 359, 360, 385 plant for handling, 280, 306 primary products from, 381 properties of, 356 purchase of, 363 resin bodies in, 358 salt in, 217, 504 space occupied by, 18, 363 spontaneous combustion of, 371 steaming the charge, 424 storage of, 18, 371 storage under water, 378 stores, design, of, 26, 53 sulphur in, 361, 394, 397 testing plant, 364 washing, 217, 366 weight charged into retorts, 418 Coal Gas (see under Gas) Cobb, J. W., 391, 406, 408, 409, 431, 462, 545 Cockey’s washer, 501 Coke, as a boiler fuel, 752 ash in, 398 calorific power of dust, 118 combustion of, 65 composition of, 398 plant for handling, 280, 318 sold per ton of coal, 61, 62, 427 space occupied by, 18 temperature of in producer, 63 used for water gas manufacture, 734 used in producers, 61, 76, 427 Coke ovens, carbonization in, 182 Koppers type, 184 use of gas for towns’ purposes, 182 Colman, H. G., 402, 435, 450, 461 Colson, A., 473 Combustion chamber, refractories for, 103, 223 temperature of, 63 Combustion, maximum temperature of, 143 spontaneous, 371 theory of, 62, 65, 692 Commercial Gas Company, 76 Companies and Corporations, number of Gas in Ü.K., 4 Complete carbonization of Coal, 756 Complete carbonization of Coal, Aart’s plant, 766 Broadhead’s plant, 776 by-products from, 758, 768 calorific power of gas, 757, 768, 769, 770 composition of gas from, 757, 759, 769, 770 composition of tar from, 768 cost of gas from, 763 Doherty’s process, 777 “ Doppelgas,” 767 “ Double gas ” plant, 771 Drake’s plant, 783 Fahnehjelm plant, 764 Helps’ plant, 783 merits of, 756, 757 Rew’s plant, 766 Robinson’s plant, 785, 786 Rose-Hastings’ plant, 765 Strache’s plant, 767 thermal efficieney of, 762 “ Tri-gas ” plant, 768 Tully plant, 775, 776 various forms of plant, 764 Concrete, cost of, 48 effect of various influences on, 47 for buildings, 50, 52 for foundations, 44, 52 hydraulic mains, 257 purifiers, 596 reinforced, 44, 596, 678, 732 tanks for gasholders, 678 tanks for oil, 732 waterproofing, 46 ('ondensation of gas, 18, 436 effect of, 452 products from, 449 “ shock,” 448 theory of, 448 Condensers, 18, 436 annular type, 439 atmospheric, 18, 437 battery type, 440, 447 capacity rules for, 18, 440 Carpenter type, 444, 451 Christopher type, 447 cost of, 28 design of, 440, 443 direction of gas and water floor in, 444 horizontal type, 437 multitubular, 441 tube joint for, 444 types of, 436 vertical type, 438 water eooled, 19, 441 water tube, 441, 443 . Constan and Kolbe, 359