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Water does not run uphill! If boiler and boiler feed unit are on the same floor, enter a value of "0" for feet of head. If boiler is located on a floor above the boiler feed unit, enter vertical height (in feet) from the pump discharge of the boiler feed pump up to the inlet piping on the boiler.

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.

WM LGB-16. Water content is 146 gallons plus a few (5 or so) for the return header. Call it 150 gallons. That's about 1.5% loss over 24 hours (9-10 cycles/day) That's about .16% loss per cycle 99.84% water returned. My guess is that some water is lost as humidity when system starts up the air that is vented has a higher humidity than the winter

Most boiler manufacturers publish the water content of their boilers. The water content, to the water line of their steam boilers, is approx. 75% of the published water content. Ex: Weil SGO 3 - 9 sections. .95 - 2.55 GPH. Water boiler content 14.6 - 29.6 gal. Steam boiler content 10.7 - 21.2 gal. Columbia (Utica) 3 - 7 sections. .65 - 2.75 GPH.

May 23, 2017· The mass won't change, so 1 kg of liquid water will form 1 kg of steam. Taking the density of water to be 1 g/cm³, you need 1 L of water to produce 1 kg of steam (in actual fact, you need a bit more, since water is not quite that dense). To make 1

Jun 12, 2017· Nominally 34.5 pounds of steam per hour. 1 Rated boiler horsepower. 10 square feet of effective heating surface (6, 8 and 12 square feet have also been used. 1 Developed boiler horsepower. 33, 475 Btu absorbed per hour (34.5 lbs water X 970.3 Btu/lb. Percent rated capacity. Developed horsepower / rated horsepower. Factor of evaporation

[Solutions Manual] Fundamentals of Thermodynamics 6th Ed - Sonntag-Borgnakke-Van Wylen

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 of water needed in the boiler for best operation, and the amount out in the pipes as steam and condensate. I don't see a way to calculate it from the steam rating.

Jun 02, 2018· Standard commercial boilers are sized by their capacity to make steam out of water and measured in the weight of the water/steam processed. The most common dimension used in the English measuring system is pounds per hour. A one ton boiler would b

The rated heat capacity of boiler refers to the heat amount per hour in hot water of a long-term and continuous operating hot water boiler, that operates at rated return water temperature, pressure, and the specified circulating water. The unit of it is MW. 0.7MW heat from hot water boiler equals to the heat of 1t steam from steam boiler.

Dec 05, 2017· Last month we discussed sizing a hot water boiler with a heat loss calculation. Unlike a hot water boiler, a steam boiler is sized by determining the square foot of radiation connected to the steam system. Once that’s been determined, you can accurately select a boiler that’s large enough to heat the connected load (radiation).