Reactants (fuel and oxidizer) are premixed. Set up the reaction as reactants-->products. You may have to manually balance the reaction. The products composition is frozen (dictated by the reaction you set up) during the process analysis. In the state panel, evaluate the states of reactants and products. The combustion process executed by the mixture takes it from a unique b (begin) state to a single f (final) state.

Example: A mixture of methane and air is ignited in a closed chamber. You can use this daemon to calculate the final temperature if the reaction is assumed known. Energy and entropy analysis of any reaction can be carried out with this daemon.

Fuel and oxidizer are separated into two subsystems by an internal wall. Premixed fuel and oxidizer can also be concpetually separated using the Dalton's model (same volume and temperature but different partial pressures). Set up the reaction as fuel+oxidizer-->products. In the state panel, evaluate the states of fuel, oxidizer and products. The combustion chamber has a composite beginning state - bA and bB states - and a single final state. Burning of a liquid or solid fuel in a closed tank can also be simulated by this daemon (the solid or liquid phase is assumed to occupy zero volume compared to the gaseous oxidizer or products).

Example-1: Fuel and oxidizer in two separate tanks, when connected and ignited, can lead to a closed process that can be analyzed by this daemon.

Example-2: Fuel and oxidizer (say, methane with 20% excess air) in a closed chamber are ignited. To find the adiabatic flame temperature. Set up the reaction (it is easier to set up a non-premixed reaction), evaluate the fuel, oxidizer and products states (note that fuel and oxidizer will share the same temperature and volume, but not the pressure), load the fuel and oxidizer states as the bA and bB states and the products state as the f-state in the process panel. Enter Q=W_ext=0 and Super-Calculate to evaluate the products state, including the final temperature.

The initial mixture composition (by mass, volume, or mole) and the products species (just the names) are specified. For a given pressure and temperature the daemon calculates the equilibrium composition and the complete products state by minimizing the Gibb's function.

Example: A mixture of methane and air is ignited in a chamber and burns in a closed process. Determine the products composition, given the the pressure and temperature at the final state.

Using the power of web service, the data base used is expanded to more than a thousand species from various sources including NASA and NIST. While the stand-alone daemon has abou 200 species, this daemon currently loads more than 1500 species.

Example:A mixture of methane and air is ignited in a chamber and burns in a closed process. Determine the products composition that includes many exotic species, given the the pressure and temperature at the final state.

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