higher calorific power
31Mannargudi —   city   …
32coal — coalless, adj. /kohl/, n. 1. a black or dark brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other… …
33Flued boiler — Trevithick s engine of 1806 is built around an early example of a flued boiler (specifically, a return flue type) A shell or flued boiler is an early, and relatively simple, form of boiler used to make steam, usually for the purpose of driving a… …
34Sewage treatment — The objective of sewage treatment is to produce a disposable effluent without causing harm to the surrounding environment, and also prevent pollution.[1] Sewage treatment, or domestic wastewater treatment, is the process of removing contaminants… …
35Producer gas — The term Producer gas has different meanings in the USA and UK.USAProducer Gas is a generic term referring to:* Wood gas : produced in a gasifier to power cars with ordinary internal combustion engines. * Town gas : manufactured gas, originally… …
36Waste-to-energy — (WtE) or energy from waste (EfW) refers to any waste treatment that creates energy in the form of electricity or heat from a waste source. Such technologies reduce or eliminate waste that otherwise would be transferred to a greenhouse gas… …
37Victorian Railways R class — Infobox Locomotive name = Victorian Railways R class caption = Victorian Railways publicity photograph of R 701, 1951 powertype = steam data for = Victorian Railways R class builder = North British Locomotive Company, Glasgow whytetype = 4 6 4… …
38Environmental impact of the oil shale industry — Kiviõli Oil Shale Processing Chemicals Plant in Ida Virumaa, Estonia Environmental impact of the oil shale industry includes the consideration of issues such as land use, waste management, and water and air pollution caused by the extraction and… …
39Environmental impact of oil shale industry — includes the consideration of issues such as land use, waste management, and water and air pollution. Surface mining of oil shale deposits has all the environmental impacts of open pit mining. In addition, the combustion and thermal processing… …
40Infrared — For other uses, see Infrared (disambiguation). An image of two people in mid infrared ( thermal ) light (false color) …
