Calculation of the resistance and volume of the heat storage material
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The flue gas temperature is 600°C, and it drops below 200°C after passing through the regenerator. Consider 1 minute for the commutation time. What is the resistance loss of the flue gas during this process? What is the volume of the regenerator? Are there any available data for performing such calculations?
The resistance loss of flue gas is related to the specific structure of this heat exchange equipment as well as the volume of flue gas, and cannot be generalized. The required volume of the heat storage material depends on its specific material ； In other words, it is related to the size of the material’s heat storage coefficient. The heat storage coefficient of materials can be found in tables; for example, the heat storage coefficients of some materials can be obtained from Table 4.1 in Appendix 4 of the \"Code for Thermal Design of Civil Buildings\" (GB50176).
The resistance loss of the flue gas is related to the specific structure of this heat exchange equipment and the volume of flue gas, especially to the flow velocity of the flue gas.
As a supplementary note, the flue gas is taken as producer gas, with an air excess factor of 1.1, and the volume is calculated at 8000 NM3/h. Since the temperature of the flue gas needs to be reduced from 600°C to 200°C within 1 minute, forced reversal is required if this temperature is exceeded. It is advisable to consider determining the cross-section and volume of the honeycomb structure using calculations similar to those for regenerative burners in heating furnaces in the current steel industry.
The calculation of heat storage materials is mainly based on experience; I have relevant literature available, but it’s quite old. Those who the design institute would have calculated for don’t provide the data. You can send me a message if you need to. Additionally, design calculators for regenerative ceramic ball burners can be found online. I’m not sure whether you want it in a honeycomb shape or a spherical shape. Last edited by lizhongjun2008 on 2009-3-3 11:41.]
Spheres or honeycombs? Calculate the heat exchange area of the small ball. I can’t remember clearly; it’s quite complicated, and careful consideration needs to be given to the selection of parameters such as the convective heat transfer coefficient. There is relevant literature.
Both pellets and honeycombs are used, with some parts using pellets and some parts using honeycombs. The small balls are easy to clean and replace; the honeycomb structure offers low resistance, and it provides a high heat storage capacity per unit volume. Please provide the relevant information. Thank you very much.
Beijing Shenwu Company produces this product; you can consult their technical staff