Design and performance analysis of solar-coal-fired complementary power system based on the S-CO2 Brayton cycle

2021 ◽  
pp. 1-12
Author(s):  
Yunlong Zhou ◽  
Jiaxin Bao ◽  
Mei Yang
Keyword(s):  
Performance Analysis ◽  
Solar Energy ◽  
Mode Conversion ◽  
Operating Mode ◽  
Brayton Cycle ◽  
Operation Performance ◽  
Wide Range ◽  
And Performance ◽  
Solar Field ◽  
Work Done

Abstract To make solar energy conversion more effective and enable effective complementary utilization of multiple energy sources, two types of solar-coal-fired complementary power (SCCP) systems, which use the supercritical CO2 (S-CO2) Brayton cycle, are investigated and their layouts improved. In addition, a thermodynamic performance analysis is carried out. The results show that, as the amount of work done by the solar energy module increases, the coal saving rate increases linearly and proportionally in both SCCP systems. Also, the supplementary electric power generated by the solar field increases. The two improved layouts increase the net efficiency of the SCCP systems significantly (SCCP1: from 43.60% to 47.65, SCCP2: from 43.60% to 47.67%). More specifically, the net efficiency of the improved layout for SCCP2 increases faster than that for SCCP1 (with its improved layout), when the second split ratio (SR2) exceeds 0.031. When the net efficiency remains unchanged, the SR2 for SCCP2 improved layout has a wide range. Furthermore, both the operation performance and operating-mode conversion of the basic system are studied for varying sunlight-conditions. The simulation results are consistent with the expectations, which underlines the development potential of the system to a certain extent.

Design and Performance Analysis of three Photovoltaic Systems to Improve Solar Energy Collection

2018 ◽  
Author(s):  
Rocio Alba-Flores ◽  
Deon Lucien ◽  
Tricia Kirkland ◽  
Lindsay Snowden ◽  
Dallas Herrin
Keyword(s):  
Performance Analysis ◽  
Solar Energy ◽  
Photovoltaic Systems ◽  
And Performance

DESIGN AND PERFORMANCE ANALYSIS OF AN AUTOMOBILE-REMOVABLE SOLAR SYSTEM FOR WATER AND CABIN HEATING

2014 ◽  
Vol 38 (4) ◽  
pp. 505-515
Author(s):  
Mohamed Bentrcia
Keyword(s):  
Saudi Arabia ◽  
Performance Analysis ◽  
Solar System ◽  
Solar Energy ◽  
Solar Collector ◽  
Storage Tank ◽  
Solar Heating ◽  
Passenger Compartment ◽  
Camping Trip ◽  
And Performance

A detachable, automotive solar system for water and passenger compartment heating is developed. The study shows that an adjustable 1 m2 solar collector is sufficient to satisfy the needs of a small group during a short camping trip in Saudi Arabia desert. Also it is found that an adequate water temperature in the storage tank, due to ambient solar heating, is maintained in all cold months, except December when it is insufficient. Among the advantages of the system is its entire operation on renewable solar energy and its ability to heat the car compartment whenever the heated water reaches the required temperature and solar energy is still available.

Development and Performance Analysis of a New Solar Energy-Assisted Photocatalytic Dryer

2008 ◽  
Vol 26 (4) ◽  
pp. 503-507 ◽  
Author(s):  
Ho-Hsien Chen ◽  
Tzou-Chi Huang ◽  
Chien-Hsiung Tsai ◽  
Arun S. Mujumdar
Keyword(s):  
Performance Analysis ◽  
Solar Energy ◽  
And Performance

scholarly journals Advanced Models and Algorithms for Self-Similar IP Network Traffic Simulation and Performance Analysis

2010 ◽  
Vol 61 (6) ◽  
pp. 341-349 ◽  
Author(s):  
Dimitar Radev ◽  
Izabella Lokshina
Keyword(s):  
Performance Analysis ◽  
Network Traffic ◽  
Traffic Simulation ◽  
Traffic Data ◽  
Fractal Models ◽  
Wide Range ◽  
Ip Network ◽  
Self Similar ◽  
Markov Modulated ◽  
And Performance

Advanced Models and Algorithms for Self-Similar IP Network Traffic Simulation and Performance Analysis The paper examines self-similar (or fractal) properties of real communication network traffic data over a wide range of time scales. These self-similar properties are very different from the properties of traditional models based on Poisson and Markov-modulated Poisson processes. Advanced fractal models of sequentional generators and fixed-length sequence generators, and efficient algorithms that are used to simulate self-similar behavior of IP network traffic data are developed and applied. Numerical examples are provided; and simulation results are obtained and analyzed.

Steady-State Power Operation of a Supercritical Carbon Dioxide Brayton Cycle

2014 ◽  
Author(s):  
Eric M. Clementoni ◽  
Timothy L. Cox
Keyword(s):  
Carbon Dioxide ◽  
Steady State ◽  
Supercritical Carbon Dioxide ◽  
Power Level ◽  
Operating Mode ◽  
Integrated System ◽  
Working Fluid ◽  
Brayton Cycle ◽  
Wide Range ◽  
Supercritical Carbon

Bechtel Marine Propulsion Corporation (BMPC) is testing a supercritical carbon dioxide (S-CO2) Brayton system at the Bettis Atomic Power Laboratory. The Integrated System Test (IST) is a two shaft recuperated closed Brayton cycle with a variable speed turbine driven compressor and a constant speed turbine driven generator using S-CO2 as the working fluid designed to output 100 kWe. The main focus of the IST is to demonstrate operational, control and performance characteristics of an S-CO2 Brayton power cycle over a wide range of conditions. IST operation has reached the point where the system can be operated with the turbine-compressor thermal-hydraulically balanced so that the net output of the system is equal to the turbine-generator output. In this operating mode, power level is changed by using the compressor recirculation valve which changes the fraction of compressor flow that goes to the turbines. Steady-state operation with the turbine-compressor thermal hydraulically balanced at near zero net system power is presented.

scholarly journals Design and Performance Analysis of Multi-Spring Maker

2019 ◽  
Vol 9 (1) ◽  
pp. 2782-2784
Keyword(s):  
Performance Analysis ◽  
World Wide ◽  
Outer Diameter ◽  
Mechanical Device ◽  
Compression Spring ◽  
Wide Range ◽  
Tension And Compression ◽  
Inner Diameter ◽  
Compression Springs ◽  
And Performance

In this industrial world, wide range of power operated machines is used for the production of springs. But this is the simple mechanism arrangement for the production of torsion and compression springs. This machine is operated by manual method. This machine can produce both the tension and compression springs of different Diameter and different length. It can make a spring with the help of the shaft. The wire which is used for producing the spring moves around the shaft to make a suitable spring. This self-movement is achieved by the keyway of the shaft. A handle is used to operate the rolling machine manually. The outer Diameter of the shaft is the inner Diameter of the spring. The torsion and compression spring is a mechanical device which is used to store energy and release it when needed.

LFSR Multi-Step Parallel Update Technology Utilizing Divider Circuit

2014 ◽  
Vol 513-517 ◽  
pp. 3581-3584
Author(s):  
Hong Yan Li
Keyword(s):  
Performance Analysis ◽  
Circuit Design ◽  
Hardware Implementation ◽  
Data Generation ◽  
Operation Performance ◽  
Operational Model ◽  
And Performance ◽  
Hardware Circuit

In this paper, operation needs and characteristic of LFSR multi-step parallel update technology based on divider circuit design are analyzed. LFSR status switch parallel update principle based on division and serial input parallel update principle are studied to solve multi-step parallel update data generation of LFSR utilizing division. Through hardware implementation and performance analysis, the hardware circuit using LFSR multi-step parallel update operation principle based on division has some advantages, such as more flexibility and high cipher operation performance. It is a better LFSR multi-step parallel update operational model.

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