If the plant has only one steam generator (boiler), uses a single fuel, and has a single steam pressure level, it is relatively easy to assign a cost to the steam. However, in most cases, there are the operating cost of the boiler is CO per hour and the process requires S pounds/hour (lb/h) of steam. To deliver this much steam, it is

Read MoreThe Boiler Horsepower (BHP) is the amount of energy required to produce 34.5 pounds of steam per hour at a pressure and temperature of 0 Psig and 212 ℉, with feedwater at 0 Psig and 212 ℉. "Boiler horsepower, a unit of measurement of power of steam boilers" from Wiki.

Read MoreOne horsepower is equivalent to 33,000 foot-pounds per minute, or the power required to lift 550 pounds by one foot in one second, and is equivalent to about 746 watts. Power also is measured in dBm, a relative logarithmic measure with 1 milliwatt as reference, calories per hour, Btu per hour (Btu/h).

Read MoreClayton is an industrial steam boiler manufacturer of fired steam generators and fluid heater steam generators. Clayton's industrial process steam boilers are available in 18 sizes from 15 to 2000 Boiler Horsepower (150 to 20,000 kW) and 518 to 69,000 pounds of steam per hour (235 to 37,300 kg/hr).

Read MoreSep 21, 2010 · Assuming an overall thermal efficiency of 34%, a steam generator (boiler) efficiency of 75 to 85% and an electrical generator efficiency of 98.5%, a conventional coal-fired power plant would use superheated steam at a rate of 3.47 to 3.93 (t/h) per MW of power output. Thus, a 1000 MW power plant would use 3,470 to 3,930 metric tons (tonnes) of

Read MoreBenchmarking the fuel cost of steam generation, in dollars per 1,000 pounds ($/1,000 lb) of steam, is an effective way to assess the efficiency of your steam system. This cost is dependent upon fuel type, unit fuel cost, boiler efficiency, feedwater temperature, and steam pressure.

Read MoreSteam pressure 10 psig. Required 40% RH at 70°F. Air controls used. From Table 29-1, Page 29, for 70°F final temperature, read 2.456 under 40% and opposite 0°F. This is pounds of vapor per hour for 100 CFM. Then 100 x 2.456 = 245.6 or, call it 246 lbs per hour required for design conditions. A single humidifier can provide this capacity although

Read MoreThis calculation translates the steam load (in pounds per hour) to boiler horsepower. Each boiler is given a boiler horsepower (BHP) rating based on the steam output capacity at 212°F and 0 psig. For this calculation, you will enter the steam load in pounds per hour, which will be divided by a constant of 34.5.

Read Morewith costs on a per kW basis declining as capacity increases. The turbine/generator costs in Table 3 include the steam turbine, generator, and generator control system. The costs do not include the boiler, steam loop, and controls. Non-fuel O&M costs range . from 0.6 to 1.0 ¢/kWh for the three steam turbines shown in Table 3. Similar to capital

Read MoreNov 20, 2008 · As cold water, 15000 kg is about 15000 L. However, I assume this is a closed system, the steam flows to a radiator or other load, is condensed and returned to the boiler. So the same water may make several trips per hour through the steam system and return being counted (as kg of steam) several times. The water capacity will depend on the level

Read MoreMar 17, 2015 · Steam, Boiler, and Blowdown Pressure are the same. Combustion Efficiency is the % of fuel energy that is directly added to the feedwater and not otherwise lost or used. Blowdown Rate is the % of incoming feedwater mass flow rate that leaves the boiler as a saturated liquid at boiler pressure.

Read MoreAnswer (1 of 4): The question has already been answered when the generation is for a short duration. However in the real world of steam generation, the water used, even when strictly purified, contains some materials that do not leave the boiler with the steam. If nothing is done, the contaminant

Read MoreThe following formula may be used to determine the boiler horsepower required for steam used in a pelleting operation: Boiler horsepower = (F x M) / (0.83 x 34.5) F = Pounds of feed pelleted per hour. M = Percent of moisture as a decimal to be added by steam. 0.83 = An approximate correction factor for make-up water at 50 degrees F

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