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Research on Thermal Performances of Premixed and Air-blasting Gas Burning Appliance

Author: JiangMing
Tutor: PengShiNi
School: Chongqing University
Course: Heating,Gas Supply, Ventilation and Air Conditioning Engineering
Keywords: The blast premixed lunch stove Thermal performance characteristics Gas pressure Primary air factor The height of the pot support
CLC: TU996
Type: Master's thesis
Year: 2008
Downloads: 111
Quote: 0
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Abstract


Chinese food kitchen in our hotel, one of the essential equipment in the hotel. Lunch stove is designed and manufactured according to Chinese food cooking habits and ways of its main features is the large heat load, large pot heat intensity, high thermal efficiency, but also produces a lot of smoke and harmful gases. Chinese food kitchen for a variety of new security, energy saving and environmental protection in order to improve Chinese food kitchen safety, efficiency and environmental protection, emerging to meet the needs of different consumers on the use of Chinese food kitchen features. Therefore, different types of Chinese food stove its various performance characteristics is not the same. In the same time, due to the use of the function and structure of the particularity of the lunch foci, their study conducted by relatively small. Therefore, various performance characteristics of the blast premixed Chinese food kitchen this topic in-depth knowledge of the research, the use of heat transfer, combustion, and mathematical knowledge, its in-depth analysis and research. First, by blowing premixed lunch stove flame stability experiments, depicted blast premix lunch stove combustion characteristic curve determined lunch stove flame stabilizing combustion zone, and found that a lunch foci in the stability of flame problems. Then blast premixed thermal performance characteristics of Chinese food kitchen orthogonal experiment, get the gas pressure, the interaction between the primary air coefficient and the height of the pot support its thermal performance assessment indicators - flue gas CO, NOx and O2 content, the thermal efficiency η as well as the impact of the flue gas temperature tf, and discuss the influencing factors and their interactions affect the thermal performance assessment indicators reasons; discussed by the blast premixed lunch stove thermal performance characteristics of the test experiment drums wind the premixed style Chinese food stove in a non-aluminum pan and aluminum pots, thermal performance assessment indicators with different gas pressure, the air coefficient and pot support a high degree of variation, and also discussed the impact of thermal performance assessment indicators reasons ; Finally, a non-aluminum pan blast premixed Chinese food kitchen flame temperature characteristics under different gas pressure and measuring point. According to the Research and Analysis, a blast premixed lunch stove gas - air mixing chamber transformation program. Before and after reconstruction by comparing the blast the premix lunch stove gas - air mixing chamber (gas pressure Pg = 2000Pa) flame stability, thermal performance characteristics and the characteristics of the data of the flame temperature, the researchers after the transformation of the gas - air mixing chamber on blast pre-mixed impact of the performance of Chinese food kitchen and get the gas - air mixing chamber after the transformation, a variety of blast the premixed-lunch stove performance variation, and thus provide the basis for further to optimize blast premix lunch stove .

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