拉萨地区不同灶前压力下燃气灶性能测试研究

Study on Performance Testing of Gas Stove at Different Upstream Gas Pressures in Lhasa Area

为了验证提高灶前供气压力对拉萨地区燃气灶性能的影响,在不同灶前供气压力条件下,对同一台额定供气压力为2 000 Pa的家用燃气灶,分别在重庆和拉萨两地对热负荷、热效率及烟气中污染物体积分数进行了测试比较。灶前供气压力提高到2 800 Pa,能显著改善高海拔环境对燃气灶实测热负荷的影响。在拉萨不同灶前压力下,燃气灶的热效率和烟气中氮氧化物含量达标,烟气中一氧化碳含量超标。

In order to verify tile effect of increasing the upstream gas pressure on the per（brmance of a gas stove in the Lhasa area, under conditions of different gas pressures, for the same gas stove with nor- mal gas pressure of 2 000 Pa, heat load, thermal eftieieney and volume fraelion of pollutants in flue gas are tested and compared respectively both in Chongqing and Lhasa areas. The el＇feet of higtl altitude environment on measured heat load of the gas stove could sig- nificanlly improved bv increasing the upstream gets pressure to 2 800 Pa. The thermal efficiency and the concentration of nitrogen oxide in title gas, from gas stove meet the standards, attd the concentration of varbon monoxide in flue g;ls does not meet the standards at different upstream gas pressures in the l,hasa area.