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You searched for subject:(Outdoor photobioreactor culture). Showing records 1 – 2 of 2 total matches.

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NSYSU

1. Chen, Huang-Wen. Study on light attenuation for outdoor vertical photobioreactor.

Degree: Master, Marine Environment and Engineering, 2014, NSYSU

Compared to terrestrial plants algae with high productivity characteristics, they are optimistically considered as a potential candidate to be biomass fuels. Based on the solar energy point of view, this study is to investigate the path of energy absorption by the microalgae vertical photobioreactor at outdoor culture, and establishes a numerical model to estimate the average received seasonal light intensity and the optimal arrangement for a set of vertical photobioreactors at open field. Taking Kaohsiung as an example, the projected daily Solar altitude, Solar azimuth and Solar radiation, coupled with the loss of Snell's law and Fresnel equation is used to obtain the actual light intensity penetrating into the wall of container. The light attenuation in the culture medium is estimated according to Bill Lambert law. This study also established a model to explore the shadow effect created by other nearby photobioreactors when a large scale production of microalgae implemented. The results are as followings: The vertical photobioreactor reflection losses throughout the year averaged about 10.9%; during spring and autumn it captures the largest amount of solar radiation, then winter, and summer is minimum, since during summer time the sun is moving upright overhead causing the light reflects more and less penetrates into the container. Taking diameter 50 cm vertical photobioreactor for example, the average light intensity in the medium of algae in about 500 (μmolâm-2âs-1), while the winter solstice day average light intensity algae solution changes at least, the greatest change in the summer solstice. The shadow effect study shows that the arrangement of the east-west direction spacing has more impact than north-south, and their EW gap of spacing between each barrel should be at least 80% height, while NS direction could be moderately reduced. Advisors/Committee Members: Chin-Ping Yu (chair), Tsu-hsin Chang (chair), Chai-Cheng Huang (committee member).

Subjects/Keywords: Outdoor photobioreactor culture; Fresnel equations; BeerâLambert law; Shading ratio; Vertical photobioreactor

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Chen, H. (2014). Study on light attenuation for outdoor vertical photobioreactor. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0027114-125059

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Chen, Huang-Wen. “Study on light attenuation for outdoor vertical photobioreactor.” 2014. Thesis, NSYSU. Accessed March 26, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0027114-125059.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Chen, Huang-Wen. “Study on light attenuation for outdoor vertical photobioreactor.” 2014. Web. 26 Mar 2019.

Vancouver:

Chen H. Study on light attenuation for outdoor vertical photobioreactor. [Internet] [Thesis]. NSYSU; 2014. [cited 2019 Mar 26]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0027114-125059.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chen H. Study on light attenuation for outdoor vertical photobioreactor. [Thesis]. NSYSU; 2014. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0027114-125059

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


NSYSU

2. Cheng, Jen-hsuan. The feasibility study on outdoor large scale microalgae culture.

Degree: Master, Marine Environment and Engineering, 2011, NSYSU

Nannochloropsis oculata is one of promising oleaginous microalga, containing a plenty of fat which can be extracted and transformed into biodiesel. The purpose of this study is to develop a closed system, Outdoor Temperature Controllable Photobioreactor System (OTCPS), to cultivate the algae in pure and massive quantity. In this research, the seawater from Sizihwan is used as the cultivation liquid. Lambert-Beerâs Law is adopted to calculate the attenuation coefficient of light intensity in a water column. By adjusting the water depth, not only the light intensity but also the water temperature could be controlled at the optimal situation and thus avoids unfavorable temperature changing in harsh weather. Therefore to establish the relationship of light intensity and water temperature is critical for the success of growing microalgae in outdoor conditions. The temperature variation of culture medium can be explained by the heat transfer theorem. In this study, the heat radiation mechanism and the first order of Fourier heat conductivity were adopted to simulate the liquid temperature change. The simulation results have shown good agreement with the filed data especially during daytime. The experimental results reveal that the winter grow rate of Nannochloroposis oculata is 0.33 d-1 , while the summer growth rate is only 0.20 d-1 . This may imply that the high temperature is an inhibition to the growth of Nannochloroposis oculata. Besides when the cell density of microalgae is getting higher, each individual alga may create mutual shading effect and thus reduce the photosynthetic efficiency. In conclusion, the proposed photobioreactor has been successfully tested in summer, autumn, and winter at Kaohsiung, in the south of Taiwan. This indicates that this device can be broadly used in the subtropic zone Advisors/Committee Members: Chai-Cheng Huang (committee member), Tse-Min Lee (chair), Ching-Nen Nathan Chen (chair), Chen-Chih Kao (chair), Jia-Jang Hung (chair).

Subjects/Keywords: light intensity; water temperature; Lambert-Beerâs law; Outdoor photobioreactor culture; Nannochloropsis oculata

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Cheng, J. (2011). The feasibility study on outdoor large scale microalgae culture. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0713111-223236

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Cheng, Jen-hsuan. “The feasibility study on outdoor large scale microalgae culture.” 2011. Thesis, NSYSU. Accessed March 26, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0713111-223236.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Cheng, Jen-hsuan. “The feasibility study on outdoor large scale microalgae culture.” 2011. Web. 26 Mar 2019.

Vancouver:

Cheng J. The feasibility study on outdoor large scale microalgae culture. [Internet] [Thesis]. NSYSU; 2011. [cited 2019 Mar 26]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0713111-223236.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Cheng J. The feasibility study on outdoor large scale microalgae culture. [Thesis]. NSYSU; 2011. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0713111-223236

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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