Archive for the ‘Temperature’ Category

Power Generation Improved Steam Temperature Control

Posted in Power, Temperature on Tuesday, July 31st, 2018. No comments yet
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Emerson’s Jeff Williams presented, Holistic Approach to Steam Temperature Control, at the 2018 Ovation Users’ Group Conference. Jeff opened describing the trend of plants being started and operated more frequently than in the past due to intermittent sources of renewable energy sources on the grid. A key challenge to this mode of operation is to […]

Reduce Boiler Tube Leaks with Better Steam Temperature Control

Posted in Power, Temperature on Wednesday, July 11th, 2018. No comments yet
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As the contribution of renewable energy sources grow on electrical power grids, so does the cycling its intermittency creates for power producers. This cycling affects steam used to drive the generators. For power stations where the electric generators are steam-driven, this steam is created by coal, nuclear, geothermal, solar thermal, waste incineration and sometimes natural […]

Reducing Thermowell Dynamic Stress Forces

Posted in Temperature on Friday, April 27th, 2018. No comments yet
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Thermowells are traditionally a circular cylinder installed into the piping to protect the temperature sensors from the flow. From an Emerson whitepaper, Thermowell Calculations: As a process fluid passes around the thermowell, low pressure vortices are created on the downstream side in laminar, turbulent, and transitional flow. The combination of stresses, generated by the static […]

Building IIoT—Temperature Measurement Style

Posted in Industrial IOT, Temperature on Thursday, February 8th, 2018. One comment so far
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One quick example of the Industrial Internet of Things (IIoT) in action is temperature measurement. Traditionally, these measurements included piping or vessel penetrations, thermowells installed, RTD or thermocouple sensing elements and transmitters, wiring/fittings/junction boxes/conduit/cable trays/etc., marshalling panels and connections in the control system I/O. For critical temperature measurement and control this is still very important […]

Reduce Flow-Induced Thermowell Mechanical Stress

Posted in Temperature on Tuesday, November 28th, 2017. No comments yet
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Thermowells, as tubular fittings in pipes and vessels, provide protection for temperature measurement devices. As we highlighted in a post from several years back, New Thermowell Calculations Help Avoid Damaging Resonance, they are subject to the stresses and strains from the fluid flowing by. In a LinkedIn article by Emerson’s Timchan Bonkat, Rosemount Twisted Square […]