The effect of temperature distribution inside the fluid level adapter on the temperature calibration

2013 ◽  
Vol 40 (1) ◽  
pp. 79-86
Author(s):  
Montita Somjan ◽  
Sirivit Taechajedcadarungsri
Keyword(s):  
Temperature Distribution ◽  
Effect Of Temperature ◽  
Temperature Calibration ◽  
Fluid Level

scholarly journals Finite Element Analysis of Temperature Distribution and Stress Behavior of Squeeze Pressure Composites

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
P. Gurusamy ◽  
T. Sathish ◽  
V. Mohanavel ◽  
Alagar Karthick ◽  
M. Ravichandran ◽  
...  
Keyword(s):  
Finite Element ◽  
Temperature Distribution ◽  
Cooling Rate ◽  
Base Alloy ◽  
Cast Alloy ◽  
Simulation Software ◽  
Engineering Industry ◽  
Effect Of Temperature ◽  
Cooling Curves ◽  
Squeeze Pressure

Aluminium-reinforced composites play a vital role in the engineering industry because of their better strength and stiffness. The properties are directly related to the solidification phenomenon of the cast alloy. The design engineer should understand the importance of the solidification behavior of base alloy and its reinforcement. Composites’ solidification study is rare, and the reviews are limited. The solidification process is analyzed using the finite element method (FEM), and this would fetch a lot of information about the cooling rate of the composites and also helps to reduce the time in experimentation. This paper reports and plots the cooling curves of Al/SiCp composites using simulation software. Cylindrical-shaped composites were developed using the squeeze casting method, and the experimental cooling curves were plotted using a K-type thermocouple. Composites samples were prepared at the following squeeze pressures: 0, 30, 50, 70, 100, and 130 MPa; melt and die temperature was kept constant at 800 and 400°C, respectively. The experimental and FEA cooling curves were compared, and it was agreed that the increase in the squeeze pressure increases the cooling rate of the developed composite. Furthermore, the effect of temperature distribution from the inner region of the melt and die material which causes the radial and tangential stress of components has also been examined.

A Second Law Approach to Characterising Thermally Stratified Hot Water Storage With Application to Solar Water Heaters

1999 ◽  
Vol 121 (4) ◽  
pp. 194-200 ◽  
Author(s):  
G. Rosengarten ◽  
G. Morrison ◽  
M. Behnia
Keyword(s):  
Temperature Distribution ◽  
Heat Exchangers ◽  
Water Storage ◽  
Heating System ◽  
Hot Water ◽  
Effect Of Temperature ◽  
Storage Efficiency ◽  
Water Heating ◽  
Solar Water Heating ◽  
Solar Water

This paper presents a method of characterising and evaluating the performance of hot water storage systems in terms of their temperature distribution. The change in exergy from the stratified state to the delivery state depends on the stored energy and the stratification. It can thus he used to define the storage efficiency for sensible heat storage devices. A new parameter that isolates the stratification component of the exergy is defined and called the stratification efficiency. The effect of temperature distribution, delivery temperature and tank cross-section on exergy and stratification efficiency is investigated. The advantage that stratification offers over a mixed tank is examined in terms of the storage efficiency and overall solar water heating system performance. Exergy is used to assess the operation of mantle heat exchangers in solar water heating systems and it is shown that exergy and stratification efficiency, as well as energy, should be used to ascertain the performance of such heat exchangers.

125 Effect of Temperature Distribution in Warm Hydroforming of AZ31 Magnesium Alloy Tube

2009 ◽  
Vol 2009.17 (0) ◽  
pp. _125-1_-_125-2_
Author(s):  
Ken-ichi MANABE ◽  
Yu OGAWA ◽  
Kazuo TADA ◽  
Tsutomu MURAI ◽  
Humiaki NAKAGAWA
Keyword(s):  
Temperature Distribution ◽  
Magnesium Alloy ◽  
Az31 Magnesium Alloy ◽  
Effect Of Temperature ◽  
Alloy Tube ◽  
Warm Hydroforming

Temperature Field Analysis of Bearing

2011 ◽  
Vol 480-481 ◽  
pp. 974-979
Author(s):  
Yan Shuang Wang ◽  
Hai Feng Zhu
Keyword(s):  
Temperature Field ◽  
Temperature Distribution ◽  
Rotational Speed ◽  
Axial Load ◽  
Field Analysis ◽  
Effect Of Temperature ◽  
Radial Load ◽  
Thermal Network ◽  
Network Method ◽  
Thermal Network Method

Based on the quasi-static analysis and the power loss analysis, the temperature distribution is calculated by ANSYS.The different part temperatures of bearing are obtained. The influences of rotational speed, axial load and radial load on the temperature distribution are analyzed. The results reveal that axial load and rotational speed affect temperature distribution strongly. The effect of radial load is not signifcant,and the maxtemperature of bearing is at the point between balls and the inner ring. Bearings with shaft are widely used in gyro motors of aviation, aerospace, marine navigational systems. In a few applications, however, heat generated by friction can affects its performance, life and reliability, and consequently influences control precision and life of gyro motors[1]. So it’s important to evaluate heat generation of bearings with shaft for the design, manufacture and its application. A few researchers [2, 3] have analyzed the concentrated contact temperature. Their researches have been mainly focused on the temperature of contact surface. In addition, some researchers (Chinese and foreign) have calculated the temperature of bearing under the thermal network method [4, 5]. The above methods are easy to carry out, but only can the temperatures of some point be found. Compared with the thermal network method, the finite element model can get the temperature of the whole model. The temperature analysis has been pursued by some foreign and Chinese researchers under the method [6, 7]. The steady temperature field of bearing with shaft from a gyro motor is studied in the paper. The speed of ball and the temperature distribution are analyzed and studied by VC6.0++ and ANSYS. The temperature distribution under different axial load, speed of inner ring and radial load is calculated. Therefore the main effect of temperature distribution can be found.

Isotope Gauges: An Analysis of Some Errors in Hot Metal Thickness Measurement

1971 ◽  
Vol 4 (7) ◽  
pp. T117-T124
Author(s):  
F. X. Macedo ◽  
F. Seredynski
Keyword(s):  
Temperature Distribution ◽  
Thickness Measurement ◽  
Carbon Steels ◽  
Effect Of Temperature ◽  
Measuring Instruments ◽  
Hot Metal ◽  
Theoretical Evaluation ◽  
Factors Affecting ◽  
Statistical Variation ◽  
Wide Range

Isotope gauges are particularly suitable as thickness measuring instruments for hot metal above 5 cm. thick and their application for this purpose is continuing to increase. The paper discusses some of the factors affecting the accuracy of these gauges and, in particular attempts a theoretical evaluation of the errors due to steel composition, temperature distribution and statistical variation. These errors are evaluated for three carbon steels. Errors in thickness measurement due to the different compositions of these steels are evaluated for the two isotope sources most commonly used for gauging purposes namely, Americium 241 and Caesium 137. These isotope sources are representative of those used for the entire practical range of thickness measurement. The paper considers the effect of temperature distribution across the depth of metal on the mass attenuating the γ-rays and the thickness measurements so evaluated are compared with those determined assuming a homogenous stock temperature. The principle of constant absorption is described and also some of its limitations where a wide range of measurements is required. Finally an artifice is discussed whereby some of the limitations may be overcome.

Influence of Compound Heat Conductivity on the Temperature Distribution in Rotor Type Curemeters

1991 ◽  
Vol 19 (2) ◽  
pp. 68-78
Author(s):  
G. K. Ernst
Keyword(s):  
Temperature Distribution ◽  
Temperature Gradient ◽  
Temperature Dependence ◽  
Heat Conductivity ◽  
Effective Temperature ◽  
Heat Sink ◽  
Cross Linking ◽  
Temperature Calibration ◽  
Measured Rate ◽  
Rotor Type

Abstract The effective temperature in rotor type curemeters is — according to DIN 53529 — controlled using an unfilled EPDM compound with dicumylperoxide as cross-linking agent. The rate of DCP decomposition has a well-known temperature dependence. This rate is also in all practical cases the same as the rate of cross-linking. Therefore, the measured rate of cross-linking indicates the effective temperature in the reaction cavity. The rotor in common curemeters is clamped. Because it can not be heated directly, this rotor is a heat sink in the cavity. The effect is a temperature gradient in the cavity depending on the heat conductivity of the tested compound. This temperature gradient in rotor type curemeters is compared to rotorless curemeters. It is shown that using the unfilled EPDM/DCP compound for temperature calibration leads to a too high effective temperature for filled compounds.

Aspects of modeling the effect of temperature stratification in the vortex tube channel

2010 ◽  
Vol 7 ◽  
pp. 163-171
Author(s):  
D.F. Marin ◽  
C.I. Mikhaylenko ◽  
L.H. Khaziev
Keyword(s):  
Numerical Simulation ◽  
Temperature Distribution ◽  
Energy Distribution ◽  
Large Particle ◽  
Vortex Tube ◽  
Particle Method ◽  
Effect Of Temperature ◽  
Hot Air ◽  
Cylindrical Coordinate ◽  
Tube Channel

A direct numerical simulation of the Ranque-Hilsch effect in a counterflow vortex tube with a diameter of the hot air diaphragm coinciding with the diameter of the tube was performed. We used DNS-modeling on the basis of the large-particle method in a cylindrical coordinate system, which allows us to take into account the scale of large turbulent vortices. An analysis of the energy distribution in the system under consideration gave a picture of the temperature distribution in the volume of the vortex tube.

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