Exergy efficiency of solar energy conversion to biomass of green macroalgae Ulva (Chlorophyta) in the photobioreactor

Zollmann, Meiron; Traugott, Hadar; Chemodanov, Alexander; Liberzon, Alex; Golberg, Alexander

doi:10.1016/j.enconman.2018.04.090

Cited by 24 publications

(6 citation statements)

References 52 publications

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“…Exergy efficiency of phytoplankton production from the solar energy was reported by Ostrowska et al 65 as 40 MJ/kg. Exergetic efficiency of photosynthesis has been reported as 2.61% by Petela, 66 3.9% by Silva et al, 67 and 3.5% by Zollmann et al 68 in case of growth of green macroalgae Ulva in the photobioreactor in the laboratory. We will use the average 3.3% in our analyses.…”

Section: Resultsmentioning

confidence: 94%

Effects of energy storage by the seaweeds on their ecosystem

et al. 2021

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In marine environment, every species store energy for its own use and deliver it to its predator. Phytoplankton and seaweeds take place at the beginning of the food chain, grow in shallow waters with photosynthesis, and compete for the solar energy. Although the biomass of the phytoplankton amounts 1%‐2% of the total global plant carbon, they carry out more than 40% of the global photosynthesis. In the food chain, the largest amount of exergy is destroyed and the largest amount of entropy is generated while going from the first to the second species in the food chain, most probably because of the conversion of the plant cell into an animal cell. Results of this study indicated that the chemical nature of the stored material, for example, fat, protein, or carbohydrate, is not related with the location of the species in the food chain. Global production of macroalgae was approximately 3 million tons in 2012, and their consumption is projected to reach 13 million tons by 2050. If the energy available for the phytoplankton should be stored by the seaweeds grown in man‐made farms in irrational amounts, competition of the seaweeds with the phytoplankton may be a major blow to marine ecology.

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Section: Resultsmentioning

confidence: 94%

Effects of energy storage by the seaweeds on their ecosystem

et al. 2021

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“…In recent decades, attempts to utilize algal biomass as a source of bioenergy have been made. These include extraction of algal oils for biodiesel production, conversion of carbohydrates to hydrogen, bioethanol and biogas by means of hydrolyzation and fermentation (16)(17)(18). Yet attempts to use macroalgae as an efficient source of renewable and clean energy in a non-destructive manner have not yet been reported.…”

Section: Introductionmentioning

confidence: 99%

Bioelectricity generation from live marine photosynthetic macroalgae

Shlosberg

Krupnik

Tóth

et al. 2022

Biosensors and Bioelectronics

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“…The building sector is responsible for more than one-third of the global total energy consumption and about 40% of CO 2 emissions [1], and various technologies, such as solar facades [2][3][4], climate-adaptive building shells [5], and algae façades [6,7], have been applied to reduce the energy demand and carbon footprint of buildings. The algae façade as a green façade system, as a recently-emerged technology, has received significant attention in the field of high-performance buildings [8], and integrating microalgae culture systems into buildings is believed to offer advantages such as a reduced ecological footprint [8][9][10], bio-fuel production [11][12][13][14][15][16], decreased energy consumption in both building and bioreactor [6,17,18], adaptable shading [19,20], acoustical insulation, and economic and environmental viability [8,9]. The symbiosis between the microalgae culture system and the building can also be beneficial for medical purposes [21], human food [22] and animal feed production [23], wastewater treatment [24,25], and production of bio-products [26] as well as energy [27].…”

Section: Introductionmentioning

confidence: 99%