Incorporation of salinity, nitrogen, and shading stress factors into the Huesemann Algae Biomass Growth model
| Autor: | Kimberly L. Ogden, Michael H. Huesemann, George Khawam, Song Gao, Peter Waller, Said Attalah |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
biology 020209 energy fungi chemistry.chemical_element 02 engineering and technology Raw material biology.organism_classification 01 natural sciences Nitrogen Salinity Light intensity Agronomy chemistry Algae 010608 biotechnology 0202 electrical engineering electronic engineering information engineering Environmental science Raceway Shading Growth rate Agronomy and Crop Science |
| Zdroj: | Algal Research. 35:462-470 |
| ISSN: | 2211-9264 |
| Popis: | This research calibrates nitrogen, salinity and shading growth factors for The Huesemann Algae Biomass Growth (HABG) model. It continues the HABG approach of independently calibrating growth coefficients for specific strains prior to simulation of algal growth in open pond raceways. Several Regional Algal Feedstock Testbed (RAFT) had salinity stress, nitrogen limitation, and shading, which all reduced growth rate. The salinity effect appeared to be most significant in Scenedesmus obliquus experiments. In order to quantify these effects, laboratory experiments were carried out to measure growth response of S. obliquus to high salinity and limited nitrogen. In addition, the shading effect was estimated based on raceway geometry, solar angle, albedo, and measured light intensity data. The new salinity, shading, and nitrogen stress factors greatly improved the accuracy of the model with the observed growth conditions. Over-estimation was decreased from 90% to 22%. The methods developed in this study are straightforward and can be applied to other algae strains and raceways. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect