Failure Analysis of Gas Turbine in the Energy Recovery System of FCC Unit

2012 ◽  
Vol 550-553 ◽  
pp. 3188-3193
Author(s):  
Yan Jie Ma
Keyword(s):  
Energy Consumption ◽  
Gas Turbine ◽  
Catalytic Cracking ◽  
Energy Recovery ◽  
Sampling Method ◽  
Cyclone Separator ◽  
Safe Operation ◽  
Recovery System ◽  
Third Stage ◽  
Cracking Process

Gas turbine is the important energy recovery device in the crude oil catalytic cracking process, the operation of the gas turbine, not only related to the energy consumption level of the device, the energy consumption size of the electric power resource, but also related to the safe operation of the whole set, it can guarantee the steady producing of whole catalytic cracking unit. By using isokinetic sampling method, this study evaluates the separation properties of the third stage cyclone separator and found that the high concentrion and particles which is larger than 10 micrometre cause the failure of gas turbine.

scholarly journals An Innovative Design of Decoupled Regenerative Braking System for Electric City Bus Based on Chinese Typical Urban Driving Cycle

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Yanfeng Xiong ◽  
Qiang Yu ◽  
Shengyu Yan ◽  
Xiaodong Liu
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Control Strategy ◽  
Recovery Rate ◽  
Energy Recovery ◽  
Regenerative Braking ◽  
City Bus ◽  
Braking System ◽  
Recovery System ◽  
Braking Energy Recovery

This paper proposes a novel decoupled approach of a regenerative braking system for an electric city bus, aiming at improving the utilization of the kinetic energy for rear axle during a braking process. Three contributions are added to distinguish from the previous research. Firstly, an energy-flow model of the electric bus is established to identify the characteristic parameters which affect the energy-saving efficiency of the vehicle, while the key parameters (e.g., driving cycles and the recovery rate of braking energy) are also analyzed. Secondly, a decoupled braking energy recovery scheme together with the control strategy is developed based on the characteristics of the power assistance for electric city bus which equips an air braking system, as well as the regulatory requirements of ECE R13. At last, the energy consumption of the electric city bus is analyzed by both the simulation and vehicle tests, when the superimposed and the decoupled regenerative braking system are, respectively, employed for the vehicle. The simulation and actual road test results show that compared with the superposition braking system of the basic vehicle, the decoupled braking energy recovery system after the reform can improve the braking energy recovery rate and vehicle energy-saving degree. The decoupled energy recovery system scheme and control strategy proposed in this paper can be adopted by bus factories to reduce the energy consumption of pure-electric buses.

scholarly journals Technical and economical optimization of CHP systems by using gas turbine and energy recovery system

2018 ◽  
Vol 5 (4) ◽  
pp. 286-292 ◽  
Author(s):  
Ahmad Zeini Vand ◽  
Mojtaba Mirzaei ◽  
Mohammad Hossein Ahmadi ◽  
Giulio Lorenzini ◽  
Ravinder Kumar ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Energy Recovery ◽  
Energy Recovery System ◽  
Recovery System ◽  
Economical Optimization

scholarly journals Digital Simulation of Thermal Turbomachinery Systems

1985 ◽  
Author(s):  
Ni Wei-Dou ◽  
Xu Xian-Dong
Keyword(s):  
Nonlinear Systems ◽  
Catalytic Cracking ◽  
Energy Recovery ◽  
Digital Simulation ◽  
Computer Programme ◽  
Fluidized Catalytic Cracking ◽  
Recovery System ◽  
Standard Component ◽  
Type Calculation

A flexible modular type calculation method is developed in this paper, it can be used to a multitude of applications, thus permitting many required turbomachinery systems to be simulated. In this method every standard component is considered as a subsystem, which can be readily linked in diverse ways with other components. This method can also be used for calculating the transients of nonlinear systems under large pertubation. As a case study, a computer programme for simulating the energy recovery system of the fluidized catalytic cracking (FCC) installation is presented.

The Gas Turbine Hybrid Vehicle LETHE™ at UDR1: The On-Board Innovative ORC Energy Recovery System — Feasibility Analysis

2012 ◽  
Author(s):  
Roberto Capata ◽  
Enrico Sciubba ◽  
Claudia Toro
Keyword(s):  
Gas Turbine ◽  
Energy Recovery ◽  
Hybrid Vehicle ◽  
Thermal Source ◽  
Monitoring And Control ◽  
Control Logic ◽  
Energy Storage Devices ◽  
Vehicle Class ◽  
Storage Devices ◽  
Recovery System

A GTHV (gas turbine hybrid vehicle) is an electric vehicle with traction entirely electric on 1 or 2 axles, equipped with a small turbogas whose only function is that of recharging the battery pack and possibly other energy storage devices present on board. After a brief review of the history of the GTHV technology, a complete feasibility assessment of a prototype configuration of a GTHV designed by the University of Roma 1 is presented. All issues related to the system and component design, packaging, identification of the “optimal” hybridization ratio, performance of the (gas turbine + batteries + electrical motor) conversion system, braking energy recovery systems (KERS), mechanical and electric storage devices (flywheels, capacitors, advanced batteries), monitoring and control logic, compliance with the European vehicular ECE emission regulations, have been already discussed in previous papers. The present study analyzes the feasibility to insert “on-board” an innovative and patented ORC (Organic Rankine Cycle) recovery system. In fact, the thermal source on the LETHE© vehicle is a turbogas of suitable power (10 to 30 kW depending on the vehicle class). The sensible heat of the exhaust gases is an ideal thermal source for an ORC system that can feed the car conditioning system and other auxiliaries.

scholarly journals Design, Selection and Application of Energy Recovery Device in Seawater Desalination: A Review

Energies ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 4150
Author(s):  
Bin Huang ◽  
Kexin Pu ◽  
Peng Wu ◽  
Dazhuan Wu ◽  
Jianxing Leng
Keyword(s):  
Energy Consumption ◽  
Recovery Rate ◽  
Energy Recovery ◽  
Operating Conditions ◽  
Recovery Efficiency ◽  
Seawater Desalination ◽  
Energy Recovery System ◽  
Recovery System ◽  
Design Selection ◽  
Selection Of

In the seawater desalination system, the energy recovery system is a crucial part, as it consumes a lot of energy and plays a guiding role in the recovery efficiency. Therefore, in the energy recovery system, the recovery rate and energy consumption are the key factors to guide the system design. In order to make the energy recovery device achieve a high recovery rate under conditions of low energy consumption, the design and selection of each device in the system are particularly important. At the current stage, system matching optimization, device design optimization, and function objective optimization are widely used to improve the energy recovery system. In this paper, the design principle of the energy recovery integration system is analyzed, methods of reducing energy consumption and improving recovery efficiency are presented. The study provides guidance for the design and selection of energy recovery devices under different operating conditions.

Five-Lump Kinetic Model for the Catalytic Cracking Process\

2018 ◽  
Vol 69 (10) ◽  
pp. 2633-2637
Author(s):  
Raluca Dragomir ◽  
Paul Rosca ◽  
Cristina Popa
Keyword(s):  
Kinetic Model ◽  
Programming Language ◽  
Catalytic Cracking ◽  
Computational Method ◽  
Industrial Data ◽  
New Model ◽  
Optimization And Control ◽  
Cracking Process ◽  
And Control ◽  
Matlab Programming

The main objectives of the present paper are to adaptation the five-kinetic model of the catalytic cracking process and simulation the riser to predicts the FCC products yields when one of the major input variable of the process is change. The simulation and adaptation are based on the industrial data from Romanian refinery. The adaptation is realize using a computational method from Optimization Toolbox from Matlab programming language. The new model can be used for optimization and control of FCC riser.

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