MODELLING OF GAS-FIRED BOILER SYSTEMS FOR BUILDING/HVAC PLANT SIMULATION

摘要

The current models of boilers and furnacesrnwhich are used in HVAC system simulationrnprograms are primarily concerned withrncalculating the heat output of the device andrnits fuel consumption. The formulation of thernmodels relies heavily on empirical terms whichrnare derived from manufacturers' data orrntesting programmes.rnDetailed simulation. Of the combustion processrninvolves solution of the flow-field. Andrnchemical reaction rate equations by CFDrnsimulation. The computational intensivenessrninvolved renders this approach infeasible forrnintegration into plant simulation. Programs.rnThe objective of this research is to investigaternthe feasibilty of increasing the functionalityrnand integrity of boiler models to includerncombustion and pollutant formation processesrnwhilst retaining their usability within HVACrnsimulation environrnents.