Clean Technologies and Environmental Policy ( IF 4.3 ) Pub Date : 2021-06-13 , DOI: 10.1007/s10098-021-02130-y Rosa-Hilda Chavez
The production of bricks using different fueled systems is an emerging field, and many of the scientific concepts and principles are applied to overcome air pollution and improve the artisan tradition. The environmental problem is the most important, becoming a phenomenon that reaches levels of serious consequences with an irreversible environmental impact. This study aims to determine the outstanding performance of two built coupled brick kilns, enhancing the energy consumption, energy savings, and energy efficiency, through an energy analysis with thermodynamic efficiency, when fuel combustion process occurs during the brick cooking, and reduction of polluting emissions. The highest recorded amounts of energy savings and emission reductions to date suggest that the use of two coupled kilns increases energy efficiency up to 77% instead of a traditional kiln of 60.66%, and 53.83% reduction in combustion gas emissions liberated to the atmosphere. Some results with the system of two kilns obtained are 2.4 times fewer reduction in fuel consumption, 50% fewer cooking time, and higher compressive strength of bricks of 90 kgf/cm2 compared to that obtained from traditional kiln 40 kgf/cm2. The emissions of combustion gas concentrations with the two kilns coupled were reduced: (a) by stoichiometric mass balance: 58.33% CO2, 58.55% SO2, and 52.89% H2O, (b) by analytical composition by using air as an oxidant: 85.12% CO2, 4.7% HC, and 85.11% H2O, instead of steam as an oxidant, (c) average concentration emissions reduction by gas chromatography mass analysis at chimney: 67.3% CO2, 97.7% CO, 97.4% CH4, and 100% SO2.
Graphic abstract
中文翻译:
两个耦合砖窑的能量分析:一项实验研究
使用不同燃料系统生产砖块是一个新兴领域,许多科学概念和原理被应用于克服空气污染和改善工匠传统。环境问题是最重要的,成为一种现象,达到严重后果的程度,对环境造成不可逆转的影响。本研究旨在通过热力学效率的能量分析,确定两个已建成的耦合砖窑的优异性能,提高能源消耗,节能和能源效率,当砖在烧砖过程中发生燃料燃烧过程时,并减少污染排放。 . 迄今为止记录的最高节能和减排量表明,使用两个耦合窑可将能源效率提高 77%,而不是传统窑的 60.66%,并且释放到大气中的燃烧气体排放减少 53.83%。获得的两个窑炉系统的一些结果是燃料消耗减少了 2.4 倍,烹饪时间减少了 50%,并且砖的抗压强度提高了 90 公斤f /cm 2与从传统窑炉获得的 40 kg f /cm 2 相比。两个窑耦合后燃烧气体浓度的排放减少:(a)通过化学计量质量平衡:58.33% CO 2、58.55% SO 2和 52.89% H 2 O,(b)通过使用空气作为分析成分氧化剂:85.12% CO 2、4.7% HC 和 85.11% H 2 O,代替蒸汽作为氧化剂,(c) 烟囱气相色谱质量分析平均浓度减排:67.3% CO 2、97.7% CO、97.4 % CH 4和 100% SO 2。