Wednesday, October 31, 2018

Saturated Steam Table

A saturated steam table shows temperatures and pressures for water at the liquid/vapor transition (i.e. points lying along the liquid/vapor interface shown in a phase change diagram), as well as enthalpy values for the water and steam under those conditions. The sensible heat of water is the amount of thermal energy per pound necessary to raise water’s temperature from the freezing point to the boiling point. The latent heat of vapor is the amount of energy per pound necessary to convert water (liquid) into steam (vapor). The total heat is the enthalpy of steam (thermal energy per pound) between the listed condition in the table and the freezing temperature of water.

By definition a saturated steam table does not describe steam at temperatures greater than the boiling point. For such purposes, a superheated steam table is necessary.

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Saturated Steam Table



Reprinted from "Lessons In Industrial Instrumentation" by Tony R. Kuphaldt – under the terms and conditions of the Creative Commons Attribution 4.0 International Public License.

Data for this saturated steam table was taken from Thermal Properties of Saturated and Superheated Steam by Lionel Marks and Harvey Davis, published in 1920 by Longmans, Green, and Company.

Monday, October 29, 2018

Triple Offset Butterfly Valve Operation and Features

Triple offset butterfly valves provide superior performance, increased durability, reliability and lower ownership cost than traditional valves.

Triple offset butterfly valves are recognized for excellent flow control characteristics, zero leakage, and reliability. They are designed for superior performance in high pressure and extreme temperature applications. Their design includes metal seats which are inherently fire safe. They maintain their zero leakage seal even in extreme operating conditions. Finally, triple offset butterfly valves typically weigh less than similar sized valves, allowing for easier installation and maintenance.

TRICENTRIC®, the leading manufacturer of triple offset valves, engineer their products to meet stringent industry requirements and offer cost savings to the end user through improved life cycle costs, reducing emissions, reducing downtime and requiring lower maintenance costs.

Triple offset butterfly valves have a huge installed base and a commonly used in a range of industries including:
  • Aerospace
  • Conventional power 
  • Nuclear power
  • Oil & gas / refining
  • Desalination
  • Chemical processing 
  • Pulp & paper mills
  • Military
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(800) 892-2769


Monday, October 22, 2018

Hot Water for Industry from Mead O'Brien

Mead O'Brien, in partnership with Armstrong International, delivers accuracy, simplicity and unparalleled performance in instantaneous hot water generation, distribution and precision temperature control.

From a single product, to a complete fully integrated system, Mead O'Brien can provide a hot water solution to meet your most demanding needs.

Products include standard and application-customized steam/water instantaneous water heaters for any process application requiring very specific temperatures, from chilled water to temperatures as high as 212°F (100°C), as well as Mixing Centers, VFD Pump Assemblies, Hot & Cold Water Hose Stations, Gas-Fired Water Heaters, and Digital Control Valves.

https://meadobrien.com
(800) 892-2769