Experiences with ultrasonic air mass flow rate measurement in gas turbine air intake ducts

2015 ◽  
Author(s):  
A.R. Boucher
Keyword(s):  
Gas Turbine ◽  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Rate Measurement ◽  
Flow Rate Measurement ◽  
Air Mass ◽  
Air Intake

Predictor–Corrector Method for Scramjet Inlet Air Mass Flow Rate Measurement

AIAA Journal ◽  
2017 ◽  
Vol 55 (7) ◽  
pp. 2382-2394
Author(s):  
Xiaoliang Jiao ◽  
Zhongqi Wang ◽  
Daren Yu
Keyword(s):  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Rate Measurement ◽  
Flow Rate Measurement ◽  
Air Mass ◽  
Predictor Corrector

Electrostatic Sensor for Real–Time Mass Flow Rate Measurement of Particle Conveying in Pneumatic Pipeline

2012 ◽  
Author(s):  
Mohd. Fua’ad Rahmat ◽  
Wee Lee Yaw
Keyword(s):  
Real Time ◽  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Cross Correlation ◽  
High Accuracy ◽  
Industrial Processes ◽  
Rate Measurement ◽  
Flow Rate Measurement ◽  
Controlled Flow

This paper discussed the electrostatic sensors that have been constructed for real–time mass flow rate measurement of particle conveying in a Pneumatic pipeline. Many industrial processes require continuous, smooth, and consistent delivery of solids materials with a high accuracy of controlled flow rate. This requirement can only be achieved by installing a proper measurement system. Electrostatic sensor offers the most inexpensive and simplest means of measuring solids flows in pipes. Key words: Electrostatic sensor, cross-correlation, peripheral velocity

scholarly journals Off-Design Performances of an Organic Rankine Cycle for Waste Heat Recovery from Gas Turbines

Energies ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1105 ◽  
Author(s):  
Carlo Carcasci ◽  
Lapo Cheli ◽  
Pietro Lubello ◽  
Lorenzo Winchler
Keyword(s):  
Gas Turbine ◽  
Mass Flow Rate ◽  
Air Temperature ◽  
Mass Flow ◽  
Flow Rate ◽  
Power Output ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Ambient Air ◽  
Air Mass

This paper presents an off-design analysis of a gas turbine Organic Rankine Cycle (ORC) combined cycle. Combustion turbine performances are significantly affected by fluctuations in ambient conditions, leading to relevant variations in the exhaust gases’ mass flow rate and temperature. The effects of the variation of ambient air temperature have been considered in the simulation of the topper cycle and of the condenser in the bottomer one. Analyses have been performed for different working fluids (toluene, benzene and cyclopentane) and control systems have been introduced on critical parameters, such as oil temperature and air mass flow rate at the condenser fan. Results have highlighted similar power outputs for cycles based on benzene and toluene, while differences as high as 34% have been found for cyclopentane. The power output trend with ambient temperature has been found to be influenced by slope discontinuities in gas turbine exhaust mass flow rate and temperature and by the upper limit imposed on the air mass flow rate at the condenser as well, suggesting the importance of a correct sizing of the component in the design phase. Overall, benzene-based cycle power output has been found to vary between 4518 kW and 3346 kW in the ambient air temperature range considered.

Review Of Mass Flow Rate Measurement Methods In Pneumatic Conveyor

2012 ◽  
Author(s):  
Herlina Abdul Rahim ◽  
Akmal Hayati Rusli ◽  
Nor Saradatul Akmar Zulkifli
Keyword(s):  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Measurement Methods ◽  
Rate Measurement ◽  
Flow Rate Measurement ◽  
Capacitance Sensor ◽  
Microwave Sensor ◽  
Rate Sensor ◽  
Imaging Sensor

Kertas kerja ini menjelaskan beberapa jenis penggunaan penderia untuk mengukur laju aliran pepejal yang mengalir di penghantar pneumatik. Setiap penderia akan menggunakan prinsip yang berbeza tetapi kebanyakan darinya mampu mencapai kesilapan homogen sebanyak 10%. Teknik–teknik ini termasuk penderia kapasitan, penderia elektrostatik, penderia gelombang mikro, penderia radiologi, kombinasi penderia elektrostatik dan digital imej dan lain–lain. Reka bentuk penderiaan harus seragam, maka zarah yang ada dalam kawasan penderiaan akan memberikan hasil yang sama terhadap isyarat mengalir. Kata kunci: Aliran pepeja; penderia; penghantar pneumatic; kaedah pengukuran This paper describes several types of sensor use in measuring mass flow rate of solids flowing in pneumatic conveyors. Each sensor will applied different principle but most of them are able to achieve 10% homogeneity error. These sensor techniques include capacitance sensor, electrostatic sensor, microwave sensor, radiological sensor, combination of electrostatic and digital imaging sensor and others. The sensing filed designs need to be uniform, thus particles exist within the sensing field will contribute equally to the flow signal. Key words: Mass flow rate; sensor; pneumatic conveyor; measurement methods

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