The Research Of Energy Saving Of Gas Stove Energy-saving Cover

The energy has been consumed largely because of the rapid development ofglobal industrialization, so energy shortage problem has become more and moreobvious. Although now new energy use is being developed continually, but as amainstream energy of coal, oil, natural gas still occupies the dominant position ofglobal energy, and these mainstream energy belong to non renewable resources.Under the constant consumption, the three mainstream energy’s storage content is lessand less, energy conservation has become a theme of social development at presentstage.In our country, the gas has a very wide range of uses and occupies very largeproportion in the area of domestic gas stove. Gas stove average thermal efficiency asthe main indicators of gas stove combustion efficiency, at this stage a most of gasstove average thermal efficiency is not enough high in our country, so it causes a lotof energy waste. In order to adapt to social trends of global energy conservation, theresearch of how to raise the average thermal efficiency of gas stove is deepener. Atpresent, the gas stove energy saving research mainly focus on the development anddesign of new structure of gas stove and the study of gas stove accessory device. Inmy paper, research is focus on the wind energy-saving cover-one additional device ofgas stove, analyzes the energy-saving features of the wind energy-saving cover, inorder to provide the basis of develop better wind energy-saving cover.In this paper, by dint of the help of CFD software FLUENT, aim at one domesticgas stove which without using wind energy-saving cover and using three differenttypes wind energy-saving cover which maked by iron, ceramics and high silica tocarry on the numerical simulation,in order to get the temperature of the combustionspace. Early treatment using FLUENT software GAMBIT, the physical model isestablished. By the continuity equation, momentum conservation equation, energyconservation equation, mass transfer equation, K equation components and epsilonequation of closed system of differential equations, by component transmissiondefined boundary condition, the combustion of methane two step reaction mechanism, set up the stability of the relaxation factor, by separating solver model of combustionspace temperature field is calculated. Calculated gas stove in the use of three differenttypes of wind energy-saving cover all combustion space when the temperature is highthan when not in use wind energy to cover, one of the highest temperature ofcombustion space for the use of high silica wind energy-saving cover. Simulatedcalculation of temperature field is obtained by heat transfer calculation the kitchenburning gas in when not in use wind energy to cover the thermal efficiency is39.6%,using three cover wind energy saving after the thermal efficiency are all promoted, thehighest is using the high silica wind energy-saving cover which can improve gas stovethermal efficiency to52.6%. The gas stove is obtained by experimental contrast whennot in use energy-saving cover the average thermal efficiency as high as39.6%, usingiron wind energy-saving cover can promote the average thermal efficiency as high as44.2%, using ceramic wind energy-saving cover can raise the average thermalefficiency is as high as44.9%, use high silica wind energy-saving cover can promotethe average thermal efficiency is as high as52.8%. Software simulation andexperiment results have verified the wind energy-saving cover on the improvement ofgas stove average thermal efficiency has a good effect.Through the research about energy-saving features to the gas stove wind energy-saving cover in theory and experiment, we could know the method to promote theenergy-saving efficiency of the wind energy-saving cover: the material of outersurface should be high temperature resistant and low coefficient of thermalconductivity, the inner surface should be made by one high thermal conductivitymaterial and cover one material which can catalyze combustion, obligated properspace for secondary air-in. Wall thickness should be ensure the heat intensity firsty,on this basis we should reduce the quantity of heat which was assimilated by the windenergy-saving cover.