Showing posts with label conversion. Show all posts
Showing posts with label conversion. Show all posts

Tuesday, December 20, 2016

Power Generation Conversion From Coal To Gas - Impact on Valves

industrial gas turbine power generation
Gas Turbine
The combination of historically low gas prices and pressure from more stringent emission requirements for combustion operations has led to a wave of plant conversions from coal to gas as the fuel for power generating equipment. Conversions, as opposed to completely new facilities, pose a challenge regarding how much of the existing system can be used as part of the converted system. One aspect of that challenge is the valves on the existing system.

Crane ChemPharma & Energy, a globally recognized manufacturer of industrial valves for a wide range of applications, authored a white paper covering the subject of valve usage and replacement in power generation facilities converting from coal to gas. The paper provides a useful overview of the current state of power generating facilities with respect to regulation and the anticipated supply and cost of gas in the future.

The application and suitability of existing and new valves at various function points throughout the power generation system is outlined and explained. The paper does a good job of reducing the complicated issue into a few pages of direct understandable explanation.

The paper from Crane ChemPharma & Energy is included below. Share your industrial valve challenges with product application specialists, combining your own process expertise with their product knowledge to develop effective solutions.


Monday, September 8, 2014

Handy Conversion Formulas for Process Control

engineering calcHere are very handy conversion calculations for engineering and process control. You may want to bookmark this page for fast lookup.

Bookmark this page.



Area
  • 1 acre = 43560 square feet = 4840 square yards = 4046.86 square meters
Distance
  • 1 inch = 2.54 centimeters 1 foot = 12 inches 
  • 1 yard  = 3 feet 
  • 1 mile  = 5280 feet 
Energy
  • 1 British thermal unit = 251.996 calories = 1055.06 joules = 1055.06 watt-seconds = 0.293071 watt-hour = 1.05506 x 1010 ergs = 778.169 foot-pound-force
Force
  • 1 pound-force = 4.448222 newtons 
  • 1 kilogram-force = 9.80665 newtons 
Mass
  • 1 pound-mass = 0.4535924 kilogram
Power
  • 1 horsepower = 550 foot-pounds per second = 745.7 watts = 2544.43 British thermal units per hour  = 0.0760181 boiler horsepower 
Pressure (Absolute only)
  • 1 standard atmosphere = 14.7 pounds per square inch absolute = 101.325 kilopascal absolute = 1.01325 bar absolute = 760 millimeters of mercury absolute = 760 torr
Pressure (all gauge or all absolute)
  • 1 pounds per square inch = 2.03602 inches of mercury at 0 deg. C = 27.6799 inches of water at 4 deg. C = 6.894757 kilopascal = 0.06894757 bar 
  • 1 bar = 100 kilopascal = 14.504 pounds per square inch
  • 1 meter of water at 4 deg. C = 9.80665 kilopascal
Temperature
  • Fahrenheit = (deg. C)(9/5) + 32 
  • Celsius = (deg. F − 32)(5/9) 
  • Rankine = deg. F + 459.67
  • Kelvin = deg. C + 273.15
Velocity
  • 1 mile per hour= 88 feet per minute= 1.46667 feet per second= 1.60934 kilometer per hour = 0.44704 meter per second = 0.868976 knot
Volume
  • 1 gallon = 231.0 cubic inches = 4 quarts = 8 pints = 16 cups = 128 fluid ounces = 3.7854 liters
  • 1 milliliter = 1 cubic centimeter