hybrid plant
Recently Published Documents


TOTAL DOCUMENTS

185
(FIVE YEARS 50)

H-INDEX

20
(FIVE YEARS 4)

2021 ◽  
Vol 13 (23) ◽  
pp. 13187
Author(s):  
Rahmad Syah ◽  
Afshin Davarpanah ◽  
Mahyuddin K. M. Nasution ◽  
Faisal Amri Tanjung ◽  
Meysam Majidi Nezhad ◽  
...  

In this study, an integrated molten carbonate fuel cell (MCFC), thermoelectric generator (TEG), and regenerator energy system has been introduced and evaluated. MCFC generates power and heating load. The exit fuel gases of the MCFC is separated into three sections: the first section is transferred to the TEG to generate more electricity, the next chunk is conducted to a regenerator to boost the productivity of the suggested plant and compensate for the regenerative destructions, and the last section enters the surrounding. Computational simulation and thermodynamic evaluation of the hybrid plant are carried out utilizing MATLAB and HYSYS software, respectively. Furthermore, a thermoeconomic analysis is performed to estimate the total cost of the product and the system cost rate. The offered system is also optimized using multi-criteria genetic algorithm optimization to enhance the exergetic efficiency while reducing the total cost of the product. The power generated by MCFC and TEG is 1247.3 W and 8.37 W, respectively. The result explicates that the provided electricity and provided efficiency of the suggested plant is 1255.67 W and 38%, respectively. Exergy inquiry outcomes betokened that, exergy destruction of the MCFC and TEG is 13,945.9 kW and 262.75 kW, respectively. Furthermore, their exergy efficiency is 68.22% and 97.31%, respectively. The impacts of other parameters like working temperature and pressure, thermal conductance, the configuration of the advantage of the materials, etc., on the thermal and exergetic performance of the suggested system are also evaluated. The optimization outcomes reveal that in the final optimum solution point, the exergetic efficiency and total cost of the product s determined at 70% and 30 USD/GJ.


Author(s):  
Irena Januškaitienė ◽  
Giedrė Kacienė ◽  
Austra Dikšaitytė ◽  
Jūratė Žaltauskaitė ◽  
Diana Miškelytė ◽  
...  

Rice ◽  
2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Yin Xiong ◽  
Chaopu Zhang ◽  
Hongju Zhou ◽  
Wenqiang Sun ◽  
Peng Wang ◽  
...  

AbstractHeterosis denotes the superiority of a hybrid plant over its parents. The use of heterosis has contributed significantly to yield improvement in crops. However, the genetic and molecular bases on heterosis are not fully understood. A large number of heterotic loci were identified for 12 yield-related traits in one parental population of chromosome segment substitution lines (CSSLs) and two test populations, which were interconnected by CSSLs derived from two rice genome-sequenced cultivars, Nipponbare and Zhenshan 97. Seventy-five heterotic loci were identified in both homozygous background of Zhenshan 97 and heterogeneous background of an elite hybrid cultivar Shanyou 63. Among the detected loci, at least 11 were colocalized in the same regions encompassing previously reported heterosis-associated genes. Furthermore, a heterotic locus Ghd8NIP for yield advantage was verified using transgenic experiments. Various allelic interaction at Ghd8 exhibited different heterosis levels in hetero-allelic combinations of five near-isogenic lines that contain a particular allele. The significant overdominance effects from some hetero-allelic combinations were found to improve yield heterosis in hybrid cultivars. Our findings support the role of allelic interaction at heterotic loci in the improvement of yield potential, which will be helpful for dissecting the genetic basis of heterosis and provide an optional strategy for the allele replacement in molecular breeding programs in hybrid rice.


Author(s):  
Boopathi Sampath ◽  
V Balasubramani ◽  
Sanjeev Kumar R ◽  
Robert Singh G

Abstract The demand for natural composite products is continuously increasing to make various industrial and commercial products to protect the environment. In this paper, the Hybrid Plant Fiber composite (HPFC) is produced using 64 wt.% of the resin matrix and 36 wt.% of natural fibers (Kenaf, Grewia, and Human hair) by hand layup moulding method. The influences of natural fiber’s weight on tensile, flexural, and impact strengths were investigated by the simplex lattice method. It was revealed that the percentage of contribution of Kenaf and Human hair fibers is higher on Tensile strength, Flexural, and Impact strengths than Grewia fiber. The optimum weight percentage of fibers: 13.5 wt.% of Kenaf, 15.3 wt. % of Human hair and 7.2 wt.% of Grewia of fibers weights have been used to produce desirable mechanical strengths of HPFC. The mechanical properties of HPFC have been compared to HPFC without Human hair. Tensile, flexural, and impact strength of HPFC is 17.95%, 11.1%, and 19.79% higher than the HPFC without Human hair. The predicted optimum HPFC is recommended to make commercial products for fulfilling consumer demand.


2021 ◽  
Vol 58 (6) ◽  
pp. 475-485
Author(s):  
Muhammad Zahoor ◽  
Sultan Alam ◽  
Muhammad Ali ◽  
Muhammad Sufaid Khan

Abstract In this study, a magnetic carbon nanocomposite (MCNC) was prepared using peanut shell biomass as carbon source. The prepared adsorbent was characterised by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), thermogravimetric/differential thermal analysis (TGA/DTA) and BET surface analysis. Batch experiments were carried out to determine the adsorption parameters of cetyl dimethylethyl ammonium bromide (CDEAB) on MCNC. Of the isotherm and kinetics models used, the Langmuir model fitted the equilibrium adsorption data best, while the kinetics data were best explained by the second-order kinetic pseudo-equation. The numerical values of enthalpy change (ΔH8 = 38 kJ mol–1) and Gibb free energy (ΔG8 = 70.95 kJ mol–1, 72.19 kJ mol–1 and 73.32 kJ mol–1 corresponding to 20°C, 30°C and 40 °C, respectively) were positive, while the value of entropy change (ΔS8 = –0.11 kJ mol–1 K–1) indicated an endothermic and non-spontaneous process. After determining the optimal adsorption parameters, the adsorbent was used in a hybrid plant with a membrane pilot plant equipped with ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO) membranes. In MCNC/membrane operation, an improvement in permeate flux was observed for the three selected membranes. The percentage retention of UF and NF membranes was also improved by MCNC pre-treatments in hybrid mode.


Forecasting ◽  
2021 ◽  
Vol 3 (4) ◽  
pp. 663-681
Author(s):  
Alfredo Nespoli ◽  
Andrea Matteri ◽  
Silvia Pretto ◽  
Luca De De Ciechi ◽  
Emanuele Ogliari

The increasing penetration of Renewable Energy Sources (RESs) in the energy mix is determining an energy scenario characterized by decentralized power production. Between RESs power generation technologies, solar PhotoVoltaic (PV) systems constitute a very promising option, but their production is not programmable due to the intermittent nature of solar energy. The coupling between a PV facility and a Battery Energy Storage System (BESS) allows to achieve a greater flexibility in power generation. However, the design phase of a PV+BESS hybrid plant is challenging due to the large number of possible configurations. The present paper proposes a preliminary procedure aimed at predicting a family of batteries which is suitable to be coupled with a given PV plant configuration. The proposed procedure is applied to new hypothetical plants built to fulfill the energy requirements of a commercial and an industrial load. The energy produced by the PV system is estimated on the basis of a performance analysis carried out on similar real plants. The battery operations are established through two decision-tree-like structures regulating charge and discharge respectively. Finally, an unsupervised clustering is applied to all the possible PV+BESS configurations in order to identify the family of feasible solutions.


Author(s):  
Susan McHugh

In countless ways, plants have been in literature from the start. They literally provide surfaces and tools of inscription, as well as figuratively inspire a diverse body of writing that ranges from documenting changing social and ecological conditions to probing the limits of the human imagination. The dependence of human along with all other life on vegetal bodies assures their omnipresence in literatures across all periods and cultures, positioning them as ready reference points for metaphors, similes, and other creative devices. As comestibles, landscape features, home décor, and of course paper, plants appear in the pages of virtually every literary text. But depictions of botanical life in action often prove portentous, particularly when they remind readers that plants move in mysterious ways. At the frontiers of ancient and medieval European settlements, the plant communities of forests served as vital sources of material and imaginative sustenance. Consequently, early modern literature registers widespread deforestation of these alluring and dangerous borderlands as threats to economic and social along with ecological flourishing, a pattern repeated through the literatures of settler colonialism. Although appearing in the earliest of literatures, appreciation for the ways in which plants inscribe stories of their own lives remains a minor theme, although with accelerating climate change an increasingly urgent one. Myths and legends of hybrid plant-men, trees of life, and man-eating plants are among the many sources informing key challenges to representing plants in modern and contemporary literature, most obviously in popular genre fictions like mystery, horror, and science fiction (sf). Further enlightening these developments are studies that reveal how botanical writing emerges as a site of struggle from the early modern period, deeply entrenched in attempts to systematize and regulate species in tandem with other differences. The scientific triumph of the Linnaean “sexual system” bears a mixed legacy in feminist plant writing, complicated further by Black, Indigenous, and People of Color (BIPOC) writers’ creative engagements with the unevenly felt consequences of professionalized plant science. Empowered by critical plant studies, an interdisciplinary formation that rises to the ethical challenges of emergent scientific affirmations of vegetal sentience, literature and literary criticism are reexamining these histories and modeling alternatives. In the early 21st century with less than a fraction of 1 percent of the remaining old growth under conservation protection worldwide, plants appear as never before in fragile and contested communal terrains, overshadowed by people and other animals, all of whose existence depends on ongoing botanical adaptation.


2021 ◽  
Author(s):  
Charles Tripp ◽  
Darice Guittet ◽  
Jennifer King ◽  
Aaron Barker

Abstract. Wind plant layout optimization is a difficult, complex problem with a large number of variables and many local minima. Layout optimization only becomes more difficult with the addition of solar generation. In this paper, we propose a parameterized approach to wind and solar hybrid power plant layout optimization that greatly reduces problem dimensionality while guaranteeing that the generated layouts have a desirable regular structure. We argue that the evolution strategies class of derivative-free optimization methods is well-suited to the parameterized hybrid layout problem, and we demonstrate how hard layout constraints (e.g. placement restrictions) can be transformed into soft constraints that are amenable to optimization using evolution strategies. Next, we present experimental results on four test sites, demonstrating the viability, reliability, and effectiveness of the parameterized ES approach for generating optimized hybrid plant layouts. Completing the tool kit for parameterized ES layout generation, we include a brief tutorial describing how the parameterized ES approach can be inspected, understood, and debugged when applied to hybrid plant layouts.


Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4397
Author(s):  
Soumyadeep Nag ◽  
Kwang Y. Lee

The growth in renewable energy integration over the past few years, primarily fueled by the drop in capital cost, has revealed the requirement for more sustainable methods of integration. This paper presents a collocated hybrid plant consisting of solar photovoltaic (PV) and Ternary pumped-storage hydro (TPSH) and designs controls that integrate the PV plant such that the behavior and the controllability of the hybrid plant are similar to those of a conventional plant within operational constraints. The PV array control and hybrid plant control implement a neural–network-based framework to coordinate the response, de-loading, and curtailment of multiple arrays with the response of the TPSH. With the help of the designed controls, a symbiotic relationship is developed between the two energy resources, where the PV compensates for the TPSH nonlinearities and provides required speed of response, while the TPSH firms the PV system and allows the PV to be integrated using its existing infrastructure. Simulations demonstrate that the designed controls enable the PV system to track references, while the TPSH’s firming and shifting transforms the PV system into a base load plant for most of the day and extends its hours of operation.


Sign in / Sign up

Export Citation Format

Share Document