Temperature Rise Model of Drum Brake

2013 ◽  
Vol 419 ◽  
pp. 701-705
Author(s):  
Ying Shi Guo ◽  
Chang Wang
Keyword(s):  
Heat Exchange ◽  
Similarity Theory ◽  
Convection Current ◽  
Test Results ◽  
Working Process ◽  
Drum Brake ◽  
Analysis Theory ◽  
Dimension Analysis ◽  
Solution Equation ◽  
Current Heat

In order to analysis the temperature rising rules of vehicle, road conditions and vehicle running state were considered. Process of friction heat generation, radiation heat and convection current exchange during drum brake working process was researched, and temperature rising model of drum brake was established. Under the guidance of similarity theory and dimension analysis theory, convection current heat exchange test of drum brake was carried out, and the solution equation of convection current heat exchange was obtained. Real road test results shows that the temperature rising curves between calculations and test are basically identical and the maximum inaccuracy variables approximately 20%.

Counter-current heat exchange in the respiratory passages: Effect on water and heat balance

1970 ◽  
Vol 9 (2) ◽  
pp. 263-276 ◽  
Author(s):  
Knut Schmidt-Nielsen ◽  
F.Reed Hainsworth ◽  
David E. Murrish
Keyword(s):  
Heat Exchange ◽  
Heat Balance ◽  
Counter Current ◽  
Current Heat

Simulation Analysis of the Working Process of the Corn Seed Metering Device with Combination Inner-Cell

2012 ◽  
Vol 215-216 ◽  
pp. 160-167 ◽  
Author(s):  
Qing Long Li ◽  
Ji Yang Yu ◽  
Qiang Qiang Zhang ◽  
Jian Qun Yu ◽  
Hong Fu
Keyword(s):  
Simulation Analysis ◽  
Three Dimensional ◽  
Bench Test ◽  
Particle Model ◽  
Test Results ◽  
Working Process ◽  
Corn Seed ◽  
3D Cad ◽  
Novel Method ◽  
Seed Metering Device

A three-dimensional discrete element method analytic model of the corn seed metering device with combination inner-cell was established based on its 3D CAD model, and the three-dimensional particle model of corn seeds was built by using the method of combination spherical particle. The working process of the corn seed metering device was simulated and analyzed by self-developed three-dimensional CAE software. It was observed that the simulative results of the seeding performance, clearing angles and dropping angles of the corn seeds well agreed with the bench test results. A novel method for studying and designing of the corn seed metering device was put forward.

A Counter-Current Heat-Exchange Reactor for the Thermal Stimulation of Gas Hydrate and Petroleum Reservoirs

2019 ◽  
Author(s):  
Judith Maria Schicks ◽  
Erik Spangenberg ◽  
Ronny Giese ◽  
Manja Luzi-Helbing ◽  
Mike Priegnitz ◽  
...  
Keyword(s):  
Heat Exchange ◽  
Gas Hydrate ◽  
Petroleum Reservoirs ◽  
Thermal Stimulation ◽  
Counter Current ◽  
Stimulation Of ◽  
Current Heat

Wpływ warunków środowiskowych i instalacyjnych na proces wymiany ciepła w wybranych przemysłowych gazomierzach miechowych

Nafta-Gaz ◽  
2020 ◽  
Vol 76 (11) ◽  
pp. 828-836
Author(s):  
Adrian Dudek ◽  
Keyword(s):  
Heat Exchange ◽  
Ambient Temperature ◽  
Flow Rate ◽  
Gas Flow ◽  
Exchange Process ◽  
Test Results ◽  
Gas Temperature ◽  
Gas Flow Rate ◽  
Heat Exchange Process ◽  
The Relationship

Since 2016, Oil and Gas Institute – National Research Institute (INiG – PIB) has been conducting new research to determine the relationship between ambient temperature and gas temperature in industrial diaphragm gas meters during the measurement, and to develop new recommendations for billing systems using industrial diaphragm gas meters with a throughput of until 25 m3/h. In the first stage, work was carried out, in which the obtained test results confirmed that the heat exchange process in an industrial diaphragm gas meter depends on the ambient temperature, the gas temperature at the inlet to the gas meter, the flow rate of the gas flowing, as well as the casing surface and the gas volume of the gas meter. In the next stage, work was carried out to determine the relationship between ambient temperature and gas temperature at the industrial diaphragm gas meter connection during the measurement. The obtained results undermined the thesis, which indicated that the gas inlet temperature is equal to the gas temperature at the depth of the gas network. In the last stage, work was carried out to determine the course of changes in gas temperature in industrial diaphragm gas meters as a function of ambient temperature and cyclical changes of the gas flow rate, which were to reflect the work of gas meters installed at customers’ premises. The analysis of the obtained test results once again showed a strong dependence of the gas temperature inside industrial diaphragm gas meters on the ambient temperature, but also on the flow rate of gas. The obtained results of laboratory tests will be used to carry out a thermodynamic description of the heat exchange process in an industrial diaphragm gas meter, which would allow the determination of the gas billing temperature as a function of the ambient temperature, the temperature of the inflowing gas and the gas flow rate. The calculated gas temperature values could be used to determine the temperature correction factors applicable when settling gas consumers billed on the basis of measurement with the use of industrial diaphragm gas meters.

The Research of Straight Pipe Viscometer

2013 ◽  
Vol 694-697 ◽  
pp. 976-980
Author(s):  
En Ping Zhang ◽  
Bao Shuang Liu ◽  
Xi Min Liu ◽  
Ming Jian Huang ◽  
Hong Wei Ren
Keyword(s):  
Signal Processing ◽  
Data Acquisition ◽  
Measurement Data ◽  
Test Results ◽  
Single Chip ◽  
Working Process ◽  
Straight Pipe ◽  
Pressure Transmitter ◽  
Drive Circuit ◽  
Rotary Viscometer

A straight pipe viscometer is proposed, which consists of the measuring sub-system and the data-acquisition and signal processing sub-system. The measuring sub-system include straight pipe, pressure transmitter, Coriolis flow-meter and slurry bump, and the data-acquisition and signal processing sub-system include single-chip processor, A/D converter, digital display, serial output port, drive circuit and so on. The measuring principle and working process of the straight pipe viscometer are analyzed. The measurement data and results are given and compared with test results of rotary viscometer in the same test conditions. The measuring accuracy is 3% at 5-150mPas, and the online measurement of viscosity is implemented.

Integrity Assessment of Hot Bolting Tool

2016 ◽  
Author(s):  
Guomin Ji ◽  
Madjid Karimirad ◽  
Frank Klæbo ◽  
Per-Christian Irgens
Keyword(s):  
Structural Integrity ◽  
Stress And Strain ◽  
Test Results ◽  
Working Process ◽  
Integrity Assessment ◽  
Nonlinear Contact ◽  
Process Qualification ◽  
Different Dimensions ◽  
Good Agreement ◽  
Classification Society

Hot Bolting is the practice of removing and replacing or freeing and re-tightening bolts on live operating piping and equipment while the system is pressurized. It is potentially hazardous and the utmost caution needs to be exercised when planning and carrying it out. The hot bolting tools designed by Irgens Engineering AS aim to establish a safe barrier for flange connections during the hot bolting operation. Their application would extend the hot bolting operation, increase the safety and simplify the working process. Qualification of new hot bolting tools was carried out by the joint efforts of producer, operator and classification society. The paper addresses a part of the integrity assessment of the new hot bolting tools. The nonlinear finite element analyses were performed by ABAQUS for sequential loading during hot bolting operation under the temperature specified by operator and the nonlinear contact interactions between different components were taken into account in the analysis. In the present study, the structural integrity was investigated for 4″ class 1500 flange with ring gasket and class 150 flanges with IFG gasket of four different dimensions (1/2″, 1.5″, 3″, and 8″). The gasket stress and strain as well as contact pressure of the gasket were studied to investigate the possible leakage. The test was performed for 4″ class 1500 flange with ring gasket by Irgens Engineering AS, and the comparison between analysis and test results showed good agreement both for the gap between flange just outside ring gasket and the flange bolt force.

scholarly journals Test results of heat heater on the feeding plot for 1300 heads

2020 ◽  
pp. 73-75
Author(s):  
Alexander Valeryevich Arkhiptsev
Keyword(s):  
Heat Exchange ◽  
Test Results ◽  
Heating Equipment ◽  
The Cost

Experience was gained in introducing a heat utilizer in the area of piglet feeding for 1300 heads. In the process of heat exchange, the heat produced by animals and heating equipment, which goes to heat the supply air, is utilized. In the calculation for the year, this saves up to 84.1% of the cost of heating industrial premises.

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