scholarly journals Construction of a Static Model for Power Generation of OTEC Plant Using Uehara Cycle Based on Experimental Data

2018 ◽  
Vol 6 (1) ◽  
pp. 18 ◽  
Author(s):  
Yoshitaka Matsuda ◽  
Takuma Yoshitake ◽  
Takenao Sugi ◽  
Satoru Goto ◽  
Takafumi Morisaki ◽  
...  
Author(s):  
Isoharu Nishiguchi ◽  
Fumitoshi Sakata ◽  
Seiichi Hamada

A method to investigate pipe wall thinning using guided waves has been developed for pipes in thermal power generation facilities. In this paper, the reflection coefficient and the transmission coefficient are derived for the torsional waves which propagate along a pipe and a simplified method to predict the waveform is proposed. The predictions of the waveforms by the FEM and a simplified method based on the reflection of torsional waves are also examined by comparing with experimental data.


2019 ◽  
Vol 12 (8) ◽  
pp. 2486-2495 ◽  
Author(s):  
Matthew J. Crane ◽  
Daniel M. Kroupa ◽  
Daniel R. Gamelin

Detailed-balance calculations based on experimental data show that quantum-cutting Yb3+:CsPb(Cl1-xBrx)3 can boost annual power generation from photovoltaic devices by over 20% in real-world conditions, rivaling perovskite-on-silicon tandem photovoltaics.


Author(s):  
Weiwu Li ◽  
Chris Suozzo ◽  
Simona Onori ◽  
Giorgio Rizzoni ◽  
Mutasim A. Salman ◽  
...  

This paper is a continuation of the work on the model-based fault diagnosis for the automotive electric power generation system (EPGS) presented in [5]. Based on the previous work on the subject, a new and optimized fault diagnosis algorithm for the EPGS system is developed. In this paper, the thresholds for the diagnosis algorithm are selected and calibrated based on experimental data. The test bench used for the calibration and validation process is discussed. Finally the effectiveness of the fault diagnosis algorithm and threshold selection is validated using experimental data collected from the test bench.


2013 ◽  
Vol 67 (6) ◽  
pp. 1288-1293 ◽  
Author(s):  
J.-J. Su ◽  
Y.-C. Chang ◽  
Y.-J. Chen ◽  
K.-C. Chang ◽  
S.-Y. Lee

A farm-scale biogas desulfurization system was designed and tested for H2S removal efficiency from livestock biogas. This work assesses the H2S removal efficiency of a novel farm-scale biogas bio-desulfurization system (BBS) operated for 350 days on a 1,000-head pig farm. Experimental data demonstrated that suitable humidity and temperature can help sulfur-oxidizing bacteria to form active bio-films on the bio-carriers. The daily average removal rate increased to 879.16 from 337.75 g-H2S/d with an average inlet H2S concentration of 4,691 ± 1,532 mg/m3 in biogas. Thus, the overall (0–350 days) average H2S removal efficiency exceeded 93%. The proposed BBS overcomes limitations of H2S in biogas when utilizing pig farm biogas for power generation and other applications.


2011 ◽  
Vol 347-353 ◽  
pp. 703-706
Author(s):  
Jia Sheng Ni ◽  
Chang Wang ◽  
Tong Yu Liu ◽  
Jiong Zhang ◽  
Ji Qiang Wang ◽  
...  

A fiber anemometer that used in wind velocity monitoring is introduced in this paper. FBG is used as a sensor device. Fiber anemometer uses wind-cup to modulate FBG’s wavelength, so that wavelength changing frequency stand out difference wind velocity. The system demodulate frequency is about 1KHz and its spectrum width is about 30-40nm, which means each channel has a capacity of accommodate 30-40 sensors. By wavelength division multiplexing (WDM) technology, this system is very suitable to be adopted in wind power generation in consideration of its large-capacity. Design scheme is described in detail. Some experimental data and equipment are also described in this paper.


2017 ◽  
Vol 7 (2) ◽  
pp. 131
Author(s):  
A. J. Jin ◽  
Y. M. Zhang

This paper presents systematic studies of the renewabale energy [RE] technologies and focuses on thermoelectric (TE) technology. The invention of a new equipment is applied to thermoelectric modules (TEM) and demonstrates important capabilities such as in-situ characterization of I-V curve, P-V curves, and TE efficiency. Many variales are invetsigated in order to maximize the output of TE power. Experimental data show that the TE power output is scalable/ additive for multiple TE systems. Multi-stack structures are invetsigated in order to improve the TE efficiency. One of the hightlights of this paper is to generate a large output of TEPG system up to 1kW power. The TE technology is one of the most important RE technologies that has advantages of being renewable, possessing low-noise/ no-moving parts among other features, and having versatile and special applications with TEM. Several sets of the thermoelectric power generation (TEPG) systems are developed with various TEMs for many different applications. Finally, the TEPG is characterized for the experimental investigation and data analysis, followed by summaries and conclusion based on the data.


Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2231 ◽  
Author(s):  
Hongkun Lv ◽  
Guoneng Li ◽  
Youqu Zheng ◽  
Jiangen Hu ◽  
Jian Li

A compact water-cooled thermoelectric generator (TEG) based on a portable gas stove was designed and analyzed to supply electricity in off-grid scenarios. The TEG incorporates a newly designed heat collector, eight thermoelectric (TE) modules, and a radiator to ensure its portability (5.9 kg) and sufficiency of electric power (12.9 W). Detailed measurements and discussions on power load feature and TE efficiency are presented. Experiments showed that the power generation capability of the proposed TEG is compromised by its compactness over previous water-cooled TEGs. A theoretical model incorporated with heat leaks from various origins has been developed to illustrate that the designed TEG exerts the potential of every TE module, and to reveal the proportion of various heat fluxes. The predicted electric power, various heat fluxes, and TE efficiency agree well with experimental data. The limitations of TE efficiency and the nonlinearity caused by Joule heat are discussed quantitatively.


2012 ◽  
Vol 241-244 ◽  
pp. 1105-1108
Author(s):  
Ming Ming Gao ◽  
Ji Zhen Liu ◽  
Kai Yang Li ◽  
Yu Wen Zhu ◽  
Yong Zhou ◽  
...  

The model of circulating fluidized bed (CFB) electric power generation process based on dynamic method which needs a lot of parameters, but these parameters are usually not easy to get. A model method based on least square support vector machine (LS-SVM) which directly uses the experimental data is presented to overcome the weakness of mechanism model, and the system structure and algorithm are given. Compared with the experimental data, the simulation results show that this method has good performance and can provide control and optimization reference to the CFB electric power generation.


2015 ◽  
pp. 109-116 ◽  
Author(s):  
A. V. Zatonskiy ◽  
L. G. Tugashova

Static model of the distillation column installation of primary oil refining is designed. The algorithm of BP-method in mathematical package Matlabis realized. For representing the composition of the oil, kind of curve fitting the true boiling point (CTI) of oil from the experimental data is determined.


Author(s):  
A. Gómez ◽  
P. Schabes-Retchkiman ◽  
M. José-Yacamán ◽  
T. Ocaña

The splitting effect that is observed in microdiffraction pat-terns of small metallic particles in the size range 50-500 Å can be understood using the dynamical theory of electron diffraction for the case of a crystal containing a finite wedge. For the experimental data we refer to part I of this work in these proceedings.


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