在实验室尺寸的光生物反应器中培养的微藻对CO2固定的CFD建模
Ulla Ojaniemi1, Anu Tamminen1, Jouni Syrjänen1
1VTT Technical Research Centre of Finland Ltd, P.O.Box 1000, FI-02044, VTT, Finland.
Bioresource technology
|November 3, 2024
概括
这项研究开发了一个计算流体动力学 (CFD) 模型用于Chlorella vulgaris藻类的培养,以改善二氧化碳 (CO2) 捕获. 该模型准确地预测了藻类生长和光生物反应器中的二氧化碳固定.
科学领域:
- 生物技术是生物技术.
- 环境工程 环境工程
- 计算科学 计算科学
背景情况:
- 像Chlorella vulgaris这样的微藻在捕获二氧化碳 (CO2) 方面非常有效.
- 优化二氧化碳固定需要了解不同二氧化碳度下的藻类生长动态.
- 计算流体动力学 (CFD) 为模拟生物反应器性能提供了一个强大的工具.
研究的目的:
- 开发和验证用于Chlorella vulgaris种植的CFD模型.
- 将二氧化碳度与藻类生长的依赖性纳入CFD模型.
- 评估模型预测二氧化碳捕获光生物反应器性能的能力.
主要方法:
- 在实验室规模的水箱反应堆中进行了Chlorella vulgaris的培养实验.
- 料气中的二氧化碳度从0.04%到50%不等.
- 一个现有的CFD模型被调整为包括二氧化碳度依赖性,以及光,藻类和温度因素.
主要成果:
- 开发的CFD模型准确地反映了藻类生产力的实验趋势.
- 该模型显示了溶解的二氧化碳和藻类度的正确相关性.
- 模拟证明了该模型能够预测生物反应器行为的能力.
结论:
- 经过验证的CFD模型是评估二氧化碳捕获光生物反应器效率的有效工具.
- 这种方法可以帮助设计和优化工业二氧化碳减排系统.
- 进一步完善模型可以提高对基于藻类的大规模碳捕获应用的预测.
相关概念视频
Carbon-dioxide Fixation
1
Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
1
The Calvin Benson Cycle
4.4K
Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...
4.4K
Green Algae
Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...


