New solar-biomass power generation system integrated a two-stage gasifier

Zhang, Bai; Liu, Qibin; Lei, Jing; Hong, Hui; Jin, Hongguang

doi:10.1016/j.apenergy.2016.06.081

Cited by 75 publications

(18 citation statements)

References 41 publications

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“…The results of the main physical and chemical analysis of the investigated pellets are shown in Table 1. Higher heating values of pellets were between 17.5 MJ·kg −1 and 23.3 MJ·kg −1 , and were close to the typical values for biomass fuel presented in other literature [45,46]. The highest value was reached for mix of fine coal and straw.…”

Section: Technical and Chemical Characteristicssupporting

confidence: 87%

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The Influence of Freezing Temperature Storage on the Mechanical Durability of Commercial Pellets from Biomass

Dyjakon

Noszczyk

2019

Energies

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The interest in pellets utilization for households heating has been growing significantly in the last several years. However, the pellets need to meet certain quality requirements, including the mechanical durability (DU) index. In the winter seasons, the pellets are very often stored in unheated in-door systems or are transported by trucks over long distances. As a result, the pellets are exposed to external weather factors, including very low temperatures (even freezing ones), which can have a negative impact on the quality parameters of the fuel. There are several parameters affecting mechanical durability, but little is known about the influence of a very low temperature on the pellet properties. The aim of this research was to analyze the influence of freezing temperature storage on the mechanical durability of commercial pellets made of different biomass. The research was carried out in accordance with the international standard for solid biofuels PN-EN ISO 17831-1:2016-02. The samples were investigated under three different conditions: after normal storage conditions (20 °C), after frozen storage conditions (−28 °C) and after the defrosting of the pellets. The results revealed that the freezing process and subsequent defrosting of the pellets only causes a small drop in their mechanical durability in comparison to the normal storage conditions. The highest mechanical durability was established for digestate pellet and pine sawdust pellet, at 99.0 ± 0.1% and 98.7 ± 0.1% respectively (p < 0.05). The greatest change of mechanical durability was observed after the defrosting process of pellets, which in the initial stage and at the normal storage temperature were characterized by low mechanical durability. The pellets made of sunflower husk (DU = 87.4%) and coal/straw blend (DU = 96.2%) were distinguished by the highest change in their mechanical durability (ΔDU = 1.7%, p < 0.05). Based on the obtained results, it was concluded that the storage of pellets at freezing temperature does not significantly affect their mechanical durability. However, if the mechanical durability decreases, this result is related to pellets with low initial mechanical durability.

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Section: Technical and Chemical Characteristicssupporting

confidence: 87%

“…The highest value was reached for mix of fine coal and straw. It resulted from a significant share of coal (45%) in these pellets which is characterized by much higher HHV [46] in comparison to the biomass substrates. The lower heating values were influenced by hydrogen and moisture content in the given fuel.…”

Section: Technical and Chemical Characteristicsmentioning

confidence: 99%

The Influence of Freezing Temperature Storage on the Mechanical Durability of Commercial Pellets from Biomass

Dyjakon

Noszczyk

2019

Energies

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“…solar field area and solar multiple). The difference between the present study and [24,25]relies on the fact that they used the direct steam generation (DSG) to provide heat or steam for gasification and combustion processes. The present work proposes and simulate CSP/Biomass hybrid power plants and analyze it's technical and economic performance.…”

Section: Introductionmentioning

confidence: 85%

Hybridization of concentrated solar power with biomass gasification in Brazil’s semiarid region

Milani

Szklo

Hoffmann

2017

Energy Conversion and Management

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“…The evaluation results show that this integration concept provides an efficient and economical way to use the concentrated solar thermal energy. [19][20][21] In addition, the solar-powered gas turbine system integrated with the solar tower has been tested. The biomass provided the external heating source for steam superheating; therefore, constant and longer system operation can be achieved.…”

Section: Introductionmentioning

confidence: 99%

“…17,18 The technical feasibility of developing the hybrid solar-biomass power generation system or polygeneration systems was conducted. [19][20][21] In addition, the solar-powered gas turbine system integrated with the solar tower has been tested. The required compressed air was heated in the central receiver of solar tower; thereby, the concentrated solar thermal energy would achieve favorable performance by hybridizing with the advanced power cycle.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive assessment of line-/point-focus combined scheme for concentrating solar power system

2018

Self Cite

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Summary The line‐/point‐focus combined scheme for concentrating solar power (CSP) system is proposed. For solar field, the parabolic trough (PT) or linear Fresnel (LF) is used as the line‐focus preheating and evaporation stages while the solar tower is used as the point‐focus superheating and reheating stages. The combined schemes benefit from the high concentration ratio of point‐focus technology and low cost of line‐focus technology. Particularly, the combined scheme guarantees the concentrated solar thermal energy matching the temperature requirement of steam generation process with less exergy loss. Performance and economic assessments have been performed for 50 MWe CSP system with two of the combined schemes, ie, PT (synthetic oil, SO) + Tower (molten salt, MS) and LF (direct steam generation, DSG) + Tower (DSG), as well as existing single schemes being the references, ie, PT (SO), LF (DSG), Tower (MS), and Tower (DSG). The comparative results show that the combined schemes are superior to liner‐focus schemes in efficiency and to point‐focus schemes in capital cost and scalability. Specifically, the PT (SO) + Tower (MS) system suggests the favorable potential in practical application with the highest annual net solar‐to‐electrical energy conversion efficiency of 16.07% and the reasonable levelized cost of electricity (LCOE) of 16.121 US cent/(kW·h). This work provides an alternative guidance for future development of the CSP technology.

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New solar-biomass power generation system integrated a two-stage gasifier

Cited by 75 publications

References 41 publications

The Influence of Freezing Temperature Storage on the Mechanical Durability of Commercial Pellets from Biomass

The Influence of Freezing Temperature Storage on the Mechanical Durability of Commercial Pellets from Biomass

Hybridization of concentrated solar power with biomass gasification in Brazil’s semiarid region

Comprehensive assessment of line-/point-focus combined scheme for concentrating solar power system

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