Optimization of ground source heat pump system along with energy storage tank armed with phase change materials to improve the microalgae open culture system performance

Jahangir, Mohammad Hossein; Labbafi, Sina

doi:10.1016/j.est.2022.104436

Cited by 6 publications

(1 citation statement)

References 32 publications

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“…The cultivation technology and the foreground product system are described in detail in Supporting Information I.2 and in our previous work and model, 38 for which a few modifications were made to the product system. First, thermoregulation of the PBRs was assumed to be provided by a reversible heat pump 43 with a coefficient of performance of 3, which we chose as an average value over locations and seasons instead of electric heating and a fluid thermal exchanger. Additionally, consider- ing multiple potential strains with different characteristics made it necessary to model two additional possible substitution routes for the co-produced biomass (cf.…”

Section: Methodsmentioning

confidence: 99%

Stochastic Ex-Ante LCA under Multidimensional Uncertainty: Anticipating the Production of Undiscovered Microalgal Compounds in Europe

Jouannais

Pizzol

2022

Environ. Sci. Technol.

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Due to their biodiversity, microalgae represent a promising source of high-value compounds that bioprospecting is aiming to reveal. Performing an ex-ante Life Cycle Assessment (LCA) to anticipate and potentially minimize the environmental burden associated with the European production of a bioprospected microalgal compound is subject to substantial and multi-factorial uncertainty as the compound remains undiscovered. Given that any microalgal strain could potentially host the compound of interest, the ex-ante LCA should consider this bioprospecting uncertainty together with the uncertainty on the technology and the production mix. Using a parameterized cultivation simulation and consequential LCA model and an extensive stochastic pseudo Monte Carlo approach, we define and propagate techno-operational, bioprospecting, and production mix uncertainties for a microalgal compound being currently bioprospected in Europe. We perform global sensitivity analysis using different sampling strategies to identify the main contributors to the total output variance. Overall, the uncertainty propagation allowed us to define and analyze the probabilistic scope for the potential environmental impacts in the emerging production of high-value microalgal compounds in Europe based on current knowledge. These findings can support policy-making as well as actors in the microalgal sector toward technological paths with lower environmental impact.

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Section: Methodsmentioning

confidence: 99%