Optimization of Centrifugal Impellers for Uniform Discharge Flow and Wide Operating Range

2012 ◽  
Vol 28 (5) ◽  
Author(s):  
Chuhua Zhang
Keyword(s):  
Discharge Flow ◽  
Operating Range ◽  
Wide Operating

Optimization of Centrifugal Impellers for Uniform Discharge Flow and Wide Operating Range

2012 ◽  
Vol 28 (5) ◽  
pp. 888-899 ◽  
Author(s):  
Y. P. Ju ◽  
C. H. Zhang ◽  
X. L. Chi
Keyword(s):  
Discharge Flow ◽  
Operating Range ◽  
Wide Operating

scholarly journals Dynamic equivalent modeling for power converter based on LSTM neural network in wide operating range

2021 ◽  
Vol 7 ◽  
pp. 477-484
Author(s):  
Yunlu Li ◽  
Guiqing Ma ◽  
Junyou Yang ◽  
Haixin Wang ◽  
Jiawei Feng ◽  
...  
Keyword(s):  
Neural Network ◽  
Power Converter ◽  
Operating Range ◽  
Dynamic Equivalent ◽  
Wide Operating

Steam Injected Gas Turbine (STIG) for Load Flexible CHP: Aspects of Dynamic Behaviour, Control and Water Recovery

2019 ◽  
Author(s):  
Thorsten Lutsch ◽  
Uwe Gampe ◽  
Guntram Buchheim
Keyword(s):  
Steam Turbine ◽  
Gas Turbine ◽  
Power Plants ◽  
Operating Cost ◽  
Combined Cycle ◽  
System Response ◽  
Water Recovery ◽  
Operating Range ◽  
Demand Fluctuations ◽  
Wide Operating

Abstract Industrial combined heat and power (CHP) plants are often faced with highly variable demand of heat and power. Demand fluctuations up to 50% of nominal load are not uncommonly. The cost and revenue situation in the energy market represents a challenge, also for cogeneration of heat and power (CHP). More frequent and rapid load changes and a wide operating range are required for economic operation of industrial power plants. Maintaining pressure in steam network is commonly done directly by a condensation steam turbine in a combined cycle or indirectly by load changes of the gas turbine in a gas turbine and heat recovery steam generator arrangement. Both result in a change of the electric output of the plant. However, operating cost of a steam turbine are higher than a single gas turbine. The steam injected gas turbine (STIG) cycle with water recovery is a beneficial alternative. It provides an equivalent degree of freedom of power and heat generation. High process efficiency is achieved over a wide operating range. Although STIG is a proven technology, it is not yet widespread. The emphasis of this paper is placed on modeling the system behavior, process control and experiences in water recovery. A dynamic simulation model, based on OpenModelica, has been developed. It provides relevant information on system response for fluctuating steam injection and helps to optimize instrumentation and control. Considerable experience has been gained on water recovery with respect to condensate quality, optimum water treatment architecture and water recovery rate, which is also presented.

Multilayer structured AgNW/WPU-MXene fiber strain sensors with ultrahigh sensitivity and a wide operating range for wearable monitoring and healthcare

2019 ◽  
Vol 7 (26) ◽  
pp. 15913-15923 ◽  
Author(s):  
Jun-Hong Pu ◽  
Xing Zhao ◽  
Xiang-Jun Zha ◽  
Lu Bai ◽  
Kai Ke ◽  
...  
Keyword(s):  
Crack Propagation ◽  
Strain Sensors ◽  
Operating Range ◽  
Highly Sensitive ◽  
Ultrahigh Sensitivity ◽  
Stretchable Sensors ◽  
Wide Operating

Integrating slippage and crack propagation points in a new direction towards highly sensitive and stretchable sensors for wearable healthcare.

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