Current status and future forecasting of biofuels technology development

Madvar, Mohammad Dehghani; Aslani, Alireza; Ahmadi, Mohammad Hossein; Ghomi, Narjes Sadat Karbalaie

doi:10.1002/er.4344

Cited by 44 publications

(11 citation statements)

References 48 publications

(83 reference statements)

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“…Following the previous researches on the technological life cycle, this paper attempts to assess energy‐related CO 2 mitigation technology trends of the G8 countries. To elucidate this matter, the patents as the proxies for technology orientation are employed.…”

Section: Methodsmentioning

confidence: 99%

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Technological assessment and modeling of energy‐related CO₂ emissions for the G8 countries by using hybrid IWO algorithm based on SVM

Ghazvini

Madvar

Ahmadi

et al. 2020

Energy Science & Engineering

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Recently, energy‐related CO2 emissions are considered as one of the most crucial issues and are promptly augmented due to further urbanization. In this paper, in order to model and calculate yearly CO2 emission, an artificial neural network is used. For the first time, the IWO‐SVM method has been applied in modeling energy‐related CO2 emissions. In this regard, consumption of different energy sources such as renewable energy, natural gas, coal, and oil, and GDP of the G8 countries in various years (from 1990 to 2016) are regarded as input in the present study. For the aim of evaluating the exact ability of the SVM and SVM‐IWO models, the performance of these models in three different modes is carried out on the basis of the number of data in the test and train sections. For this purpose, implementations are split into three categories (a = 80% of the data for the train section and 20% for the test section; b = 70% of the data for the train section and 30% for the test section; and c = 60% of the data for the train section and 40% for the test section). Furthermore, five scenarios were selected on the basis of the number of input parameters and input parameters for achieving the best model. As indicated in the results in all scenarios, the correlation of the model with the hybrid invasive weed algorithm based on SVM is more favorable than that in the support vector machine model, due to better training of the SVM‐IWO model than the SVM model. Moreover, the technological orientations of the G8 countries to mitigate CO2 emissions are determined through patent analysis. While the patents have essential information, investigating the published patent by a country could be helpful for determination of technological orientations. Hence, all published patents by these countries are extracted and deeply analyzed. In the next step, to find out main technological approaches, all patents and their intents have been studied. Eventually, the technological life cycles and trends of each main technology are drawn.

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Section: Methodsmentioning

confidence: 99%

“…After predicting the energy‐related CO 2 emissions, the technological approaches for mitigating CO 2 by the G8 countries have been investigated. Various researchers used the patent as a tool to estimate technological orientation . Reduction of CO 2 emissions related to energy consumption can be classified in various technology sectors.…”

Section: Introductionmentioning

confidence: 99%

Technological assessment and modeling of energy‐related CO₂ emissions for the G8 countries by using hybrid IWO algorithm based on SVM

Ghazvini

Madvar

Ahmadi

et al. 2020

Energy Science & Engineering

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“…Conversely, at high production volumes, the feedstock price increase can outweigh the learning effect [55]. Biodiesel, a first generation biofuel, is at a mature status, indicating no significant technological improvement potential, whereas some second generation biofuel is at the growth state [56]. Furthermore, second generation biofuels are cost superior to first generation biofuels and some could even compete with fossil fuels in 2020 if the crude oil price reaches €100/barrel [53].…”

Section: Of 28mentioning

confidence: 99%

Sustainable Residential Energy Supply: A Literature Review-Based Morphological Analysis

Arens¹,

Schlüters²,

Hanke³

et al. 2020

Energies

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The decarbonization of the energy system will bring substantial changes, from supranational regions to residential sites. This review investigates sustainable energy supply, applying a multi-sectoral approach from a residential site perspective, especially with focus on identifying crucial, plausible factors and their influence on the operation of the system. The traditionally separated mobility, heat, and electricity sectors are examined in more detail with regard to their decarbonization approaches. For every sector, available technologies, demand, and future perspectives are described. Furthermore, the benefits of cross-sectoral integration and technology coupling are examined, besides challenges to the electricity grid due to upcoming technologies, such as electric vehicles and heat pumps. Measures such as transport mode shift and improving building insulation can reduce the demand in their respective sector, although their impact remains uncertain. Moreover, flexibility measures such as Power to X or vehicle to grid couple the electricity sector to other sectors such as the mobility and heat sectors. Based on these findings, a morphological analysis is conducted. A morphological box is presented to summarize the major characteristics of the future residential energy system and investigate mutually incompatible pairs of factors. Lastly, the scenario space is further analyzed in terms of annual energy demand for a district.

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“…This has resulted in the depletion of non‐renewable fossil fuels and amplification of global warming. This situation has prompted many countries worldwide to search for alternatives to fossil fuels, and microalgal biodiesel has been widely regarded as a promising alternative 1‐4 . Compared to fossil fuels, biodiesel becomes attractive due to its lower carbon monoxide (CO) and carbon dioxide (CO 2 ) emission, lower particulates emission, zero sulfur content, and biodegradability 5 .…”

Section: Introductionmentioning

confidence: 99%

Conceptual design of a hybrid thin layer cascade photobioreactor for microalgal biodiesel synthesis

Tan

et al. 2020

Int J Energy Res

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Even though microalgae are able to produce various valuable metabolites, microalgal culture on an industrial scale still faces challenging difficulties. Open systems may be cheaper to construct, easier to operate and maintain, and possess greater surface area to volume ratio, but they are also easily contaminated, have high water loss due to evaporation, and suffer from unfavorable weather. On the other hand, closed photobioreactor systems possess higher biomass yields, better control over culture parameters, and lower contamination risks. However, photobioreactors are costlier to construct and maintain. Thus, a hybrid semi-closed thin layer cascade photobioreactor was proposed to cultivate high-density microalgal cultures for biodiesel production. Computational fluid dynamics analysis was carried out to observe fluid behavior in the hybrid photobioreactor design. The simulation results showed satisfactory performance in the improved design, making the photobioreactor a potential candidate for microalgal biodiesel production.

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Current status and future forecasting of biofuels technology development

Cited by 44 publications

References 48 publications

Technological assessment and modeling of energy‐related CO₂ emissions for the G8 countries by using hybrid IWO algorithm based on SVM

Technological assessment and modeling of energy‐related CO₂ emissions for the G8 countries by using hybrid IWO algorithm based on SVM

Sustainable Residential Energy Supply: A Literature Review-Based Morphological Analysis

Conceptual design of a hybrid thin layer cascade photobioreactor for microalgal biodiesel synthesis

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Current status and future forecasting of biofuels technology development

Cited by 44 publications

References 48 publications

Technological assessment and modeling of energy‐related CO2 emissions for the G8 countries by using hybrid IWO algorithm based on SVM

Technological assessment and modeling of energy‐related CO2 emissions for the G8 countries by using hybrid IWO algorithm based on SVM

Sustainable Residential Energy Supply: A Literature Review-Based Morphological Analysis

Conceptual design of a hybrid thin layer cascade photobioreactor for microalgal biodiesel synthesis

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Technological assessment and modeling of energy‐related CO₂ emissions for the G8 countries by using hybrid IWO algorithm based on SVM

Technological assessment and modeling of energy‐related CO₂ emissions for the G8 countries by using hybrid IWO algorithm based on SVM