therefore it is desired to improve the steam plant as a whole, it is first of all necessary to ascertain separately the nature of the losses due to its various portions; and in this connection the diagrams in Plate 5 have been prepared, which it is hoped may assist to a clearer understanding of the nature and extent of the various losses.The boiler; the engine; the condenser and air-pump; the feedpump and the economiser, are indicated by rectangles upon the diagram. The flow of heat is shown as a stream, the width of which gives the amount of heat entering and leaving each part of the plant per unit of time; the losses are shown by the many waste branches of the stream. Special attention is called to the one (unfortunately small) branch which represents the work done upon the pistons of the engine." Originally created by Charles Joseph Minard (for the Russian campaign of 1812) to show the number of Napoleon's soldiers going to and from Russia, Sankey adapted the method for energy flow. This presentation made an impression. Four years later in 1902 Robert Henry Thurston among others acknowledged, that the heat distribution of the then modern steam engine was best shown by the use of the so-called "Sankey Diagram". Patents Sankey received at least four patents for an expansion-gear for engines (1894), a turbine (1905), a reversible turbine (1907), and a steam-turbine (1907). Publications Books: 1879. Elementary theory and calculation of iron bridges and roofs. English translation of August Ritter's German book of 1863. 1898. Temperature Entropy Or [theta Phi] Chart for 1 Lb. of H2O: Giving Also Volumes, Absolute Pressures and Dryness Fractions, Internal Energy, Water Heat, and Total Heat in British Thermal Units. Frost & Sons 1911. Gas engines. with William Johnstone Marshall 1907. The Energy Chart: Practical Applications to Reciprocating Steam-engines. E. & F.N. Spon Articles, a selection: 1888. "The Maps of the Ordnance Survey: a mid-Victorian view". in: Engineering, a weekly illustrated journal. Charles Close Society London. Republished in 1995. 1896. "The Thermal Efficiency of Steam-Engines". In: Minutes of Proceedings of the Institution of Civil Engineers 125, 1896, S. 182–242. 1898. "Introductory Note on the Thermal Efficiency of Steam-Engines". in: Minutes of Proceedings of the Institution of Civil Engineers. Vol. 134, p. 278–283 References External links Captain H Riall Sankey imeche.org Obituary notice IEEE 1853 births 1925 deaths Royal Engineers officers Fellows of