Gas chamber Gas chamber A gas chamber is an apparatus for killing humans or other animals with gas, consisting of a sealed chamber into which a poisonous or asphyxiant gas is introduced. The most commonly used poisonous agent is hydrogen cyanide; carbon dioxide and carbon monoxide have also been used. Gas chambers were used as a method of execution for condemned prisoners in the United States beginning in the 1920s and continue to be a legal execution method in three states. During the Holocaust, large-scale gas chambers designed for mass killing were used by Nazi Germany as part of their genocide program.
Gas engine (LCV basis). These gas engines are usually medium speed engines Bergen Engines Fuel energy arises at the output shaft, the remainder appears as waste heat. Large engines are more efficient than small engines. Gas engines running on biogas typically have a slightly lower efficiency (~1-2%) and syngas reduces the efficiency further still. GE Jenbacher's recent J624 engine is the world's first 24-cylinder gas engine with high efficiency running on methane. When considering engine efficiency one should consider whether this is based on the lower heating value (LCV) or higher heating value (HCV) of the gas. Engine manufacturers will typically quote