191
Gravity of oils 214
Grooving 102
Guerney's boiler 24
Handhole fittings for Babcock & Wilcox boilers 50, 51
Handholes in Babcock & Wilcox boilers 50, 51
Hardness of boiler feed water 102
Permanent 102
Temporary 102
Testing for 105
Hardness of fire brick 303
Heat and chemical methods of treating feed water 105
And its measurement 79
Balance 262
Consumption of engines 141
Latent 84
Of liquid 120
Sensible 84
Specific (see Specific heat) 83
Total 86
Transfer 323
Heat value of bagasse 205
By-product coke oven gas 231
Coal 177
Heat value of fuels, determination of 173
Determination of Kent's approximate method 183
High and low 174
Heat value of natural gas 229
Oil 215
Wood 201
Heat waste (see Waste heat) 232
Heaters, feed water, closed 111
Economizers 111
Open 111
Heating feed water, saving by 110
Hero's engine 13
High and low heat value of fuels