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What is Thermowell and How-to choose Thermowell Probe Length ?

S Bharadwaj Reddy
The American Society for Testing and Materials (ASTM) has defined the term Thermowell as ” a closed end re-entrant tube designed for insertion of temperature sensing element, and provided with...

Why have been limits imposed on the frequency ratio for thermowells?

S Bharadwaj Reddy
In 1995, an accident caused due to breaking thermowells in Monju Nuclear Plant reactor, led to very serious damages to the surrounding facilities. Thermowells located on a line carrying liquid...

Thermocouple Questions and Answers

S Bharadwaj Reddy
Thermocouple Questions and Answers Comparison of Thermocouples, RTD & Thermistor ? What is a Thermocouple? A Thermocouple is a sensor used to measure temperature. Thermocouples consist of two wire legs...

How to Select Right Thermocouple & Thermowell ?

S Bharadwaj Reddy
How to select right thermocouple for your application? To select an ideal thermocouple first we need to understand the need of measurement application and requirement. Factors affecting temperature change Accuracy...

Thermowell Wake Frequency Calculation

S Bharadwaj Reddy
What is a Thermowell Wake Frequency Calculation? A Wake Frequency Calculation is used to determine or prove the required dimensions and suitability of a Thermowell based on the process conditions....

Multiple Thermowell Installations Problems

S Bharadwaj Reddy
Vortex shedding Fig: Color enhanced smoke trail showing von Karman Vortex Street in laminar fluid flow Vortex Shedding effects on Multiple Thermowell Installations Thermowells are essentially a circular cylinder installed like...

Thermowell Design Guidelines

S Bharadwaj Reddy
When fluid flows past a thermowell inserted into a pipe or duct, vorticies form at both sides of the well. These vorticies detach, first from one side, and then from the other. This...

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