Improving the efficiency of the technological scheme of industrial high-temperature air heater
| العنوان: | Improving the efficiency of the technological scheme of industrial high-temperature air heater |
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| المؤلفون: | A. Makarov, M. Senchuk, A. Khodos, M. Kirienko |
| المصدر: | Ventilation, Illumination and Heat Gas Supply. 40:6-15 |
| بيانات النشر: | Kyiv National University of Construction and Architecture, 2022. |
| سنة النشر: | 2022 |
| الوصف: | Two typical schemes of air heating in gas-oil air heaters (heat generators) are analyzed, the structural difference of which is characterized by the mutual location of the fire tube - combustion chamber and convective heating surface (chimneys). The improved constructive scheme of the developed high - temperature air heater - heat generator with air heating for technological processes of drying is described. The main technical and operational advantages of the accepted scheme of heating of air which differs in high economy and reliability are noted. New technical solutions in the developed design of the TG heat generator are considered for the purpose of increase of its efficiency and reliability at long operation. The adoption of these decisions on the basis of laboratory and computational research is substantiated. The scheme of the fire stand on studying the process of heat removal from heat-stressed heating surfaces by radiation-convective heat transfer with the use of heat-absorbing screens is given. Designed cooling systems for heat pipes of heat generators are described on the basis of bench researches and the calculation model is developed. The calculated dependences of the change in the temperature of the metal of the heated walls on the velocity of the air flow in a single channel and on the width of the double air channel with a heat-absorbing screen are given. The results of calculation researches for the purpose of optimization of a convective surface of heating and entrance sites of chimneys in the form of dependences of change are shown: length of convective packages depending on speed of flue gases; temperature of gases, metal of walls and air on the initial section of chimneys at various options of its configuration. Patented technical solutions in the designs of industrially implemented high-temperature air heaters - gas heat generators TG-0.95-200, TG-1.9-200 and ТГ-2,4-200 with an air heating temperature of 200 oC have been implemented. Their high efficiency and reliability during many years of operation as a part of drying installations at the enterprises of the food industry of Ukraine, Belarus, the Russian Federation, Azerbaijan, Uzbekistan, Turkmenistan, Kyrgyzstan, Poland are confirmed. |
| تدمد: | 2664-5769 2409-2606 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::b53b582e2705c18b56afa171bf1f384d https://doi.org/10.32347/2409-2606.2022.40.6-15 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........b53b582e2705c18b56afa171bf1f384d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 26645769 24092606 |
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