A constant temperature flow microalgae photobioreactor

Abstract

A constant temperature flow microalgae photobioreactor comprises a photothermal phase change fluid temperature control part, a metal spoiler baffle, a photobioreactor part and a light source part. Thefour parts are sequentially and cyclically combined to form a photothermal phase change fluid temperature control cavity and a photobioreactor cavity which are connected through pipes. The constant temperature flow microalgae photobioreactor can be widely applied in the fields of biology and energy, and the scale of the photobioreactor can be expanded by expanding the number of combined structures. The uniform light intensity distribution in the photobioreactor can be achieved through an acrylic light guide plate and the multi-piece distribution structure, and the photobioreactor can providea suitable light source and temperature for microalgae growth in combination with a photothermal phase change composite material. The photobioreactor is simple in structure and ingenious in combination, a heating temperature control device of a traditional reactor is saved, the photobioreactor saves energy and is environmentally friendly, and the cost is saved.

Description

technical field [0001] The invention relates to a photobioreactor, in particular to a constant temperature flow type microalgae photobioreactor. Background technique [0002] Photosynthetic microalgae refers to a type of unicellular algae that can be autotrophic through light energy. Its cells are very small, diverse and widely distributed, and can absorb water and CO through photosynthesis. 2 and converted to O 2 and macromolecular organics. Certain microalgae can also accumulate large amounts of triacylglycerols (30% to 60% of dry cell weight) under natural conditions, and their photosynthetic efficiency and oil yield are at least an order of magnitude higher than those of terrestrial crops. In terms of biological oil production, the research of microalgae is the mainstream direction of algae research. Photobioreactors refer to a class of devices that can be used for photosynthetic microorganisms and their photosynthetic tissues or cells. It can be divided into two typ...

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Problems solved by technology

However, it is greatly affected by the external environment, and its cultivation conditions are unstable.

The closed reactor can achieve a certain degree of continuous production, and is not easily affected by the external environment, easy to operate, and can also reduce environmental pollution to a certain extent, but it requires a high investment to complete

Due to the suspension of microalgae in the photobioreactor, the light will decay exponentially in the microalgae suspension, and the penetration depth usually does not exceed 2-5cm, and the microalgae at the far light end will receive light due to the inhomogeneity of the microalgae suspension. Uneven, which greatly affects the growth rate of microalgae and the overall yield of the microreactor

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