Research on the Combustion Performance of Infrared-Atmospheric Combined Upper Air Inlet Burner
The infrared-atmospheric combined upper air inlet household gas stove avoids the low heat load adjustment ratio of pure infrared gas stoves,while having higher thermal efficiency than traditional atmospheric stoves.This research tested the combustion performance of infrared-atmospheric combined gas stoves at different pot support heights:the optimal structural combination is 10.7 mm exhaust port height and 25.1 mm pot support height.The corresponding heat load is 5.156 6 kW,thermal efficiency is 78.20％;the thermal efficiency will drop by nearly 1％if it is below or above the pot support height of 1.0 mm.The results of the heat load decay and temperature monitoring experiment are as follows:the measured heat load decreases with the combustion time,the temperature gradually rises with the burning time and tends to be stable at 30 to 35 minutes.The simulation results of the ejector flow show that the increase in nozzle wall temperature is the main reason for the thermal load of this gas stove to decay with the burning time.
infrared-atmospheric burnerhousehold gas stovethermal efficiencythermal load
万方数据
维普
