the ratio of heat actually used in producing the steam to the heat liberated in the furnace. the amount of water evaporated or steam produced in kg per kg of fuel burnt. the amount of water evaporated from and at 100° C into dry and saturated steam. the evaporation of 15.653 kg …

Read MoreHow to: Determine the minimum required thickness of a boiler drum questions Note: All code questions are to be calculated in (mm) and (MPa) unless otherwise stated. Convert accordingly and properly before the calculation. Question #9 2A1 Question #9

Read MoreSAMPLE TEST QUESTIONS BOILER MAKER - ITA WEBSITE 1 How many rafters are to be installed at a chord distance of 6 ft. 3 1/8 in. on a 40-ft. diameter tank? A. 20 B. 21 C. 22 D. 23 2 What is the working load limit (WLL) of 1/2 in. improved plow steel wire

Read More17/3/2015 · 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 MoreSteam Production When heat is added to water, its temperature rises at a rate of 0.56 C (1 F) for each heat input of 2.095 kJ/kg (1 Btu/lb) If we take water at 0 C (32 F) and we add 419 kJ/kg (180 Btu/lb) then we will increase the temperature of the water by 100 C

Read MoreThe steam pressure in the boiler is regulated by the Boiler Operator. This is a pressure control which senses the steam pressure and turns the boiler on and off accordingly. This control must be operationally tested. Adjust the pressure setting on the control to a

Read More4. Boiler shall be designed for the following operating conditions: a. Guaranteed net steam capacity, for each boiler at superheater outlet excluding all blow down, heat losses and all steam used for boiler auxiliaries such as fans, soot blowers, burners, etc., as b.

Read More3. A steam boiler safety valves must be sized to prevent steam pressure from exceedingthe MAWP by: a. 10%. b. 6%. c. 25% d. None of the above. 4. CO in the flue gas of a boiler is an indication of: a. Complete combustion. b. Incomplete combustion. 5.

Read MoreSteam Sample Conditioning and Collection. Sampling solutions for steam & water sampling. Sample Conditioning Panels built as per standard ASME PTC 19.11 and VGB/DGRL. For proper conditioning of your steam and water samples Steam apllications Demi Water, Feedwater, Condensate, Boiler Water, LP Drum Water, LP/HP Steam, Life Steam, Main Steam Demi Water, Feedwater, Condensate, Boiler Water, …

Read More12/2/2021 · We have Specific fuel consumption (SFC) = Specific steam consumption (SSC) / Steam to fuel ratio of Boiler (SFR) SFC = 4.2 / 4.8 =0.875 kg of fuel for generating 1 kw of power 21-Calculate the GCV of a bagasse sample having moisture 51% & pole 1.5%.

Read MoreThe samples for analysis should be taken at the boiler exit, at the entries and exits of the auxiliary plant (i.e. economizer and/or air heater) if fitted; and certainly at the nearest predictable point to the fuel bed. It is usually assumed that if the CO 2, CO, and O 2 quantities are measured and the balance to 100 percent taken as nitrogen, then the analysis is complete.

Read MoreQuestion 11. Our 1,200,000 lb/hr steam boiler normally operates at around 3% excess O2 or 15% excess Air. If it operated at 3% excess O2 what would be the approximate % boiler efficiency loss? Answer The term Boiler efficiency is a generic term that could

Read More14/11/2018 · 21-1 what area of the boiler shall be computed as heating surface. A. The total area of the fireside and water side. B. The water side minus the fireside areas. C. The surface exposed to the products of combustion. D. The total area of the steam space where evaporation takes place.

Read More21/2/2019 · lcv calculation example for boiler. THERMAL POWER: Boiler Efficiency calculations For example, efficiency of a Bagasse fired boiler is about 70% where as that of oil fired boilers is about 85 %. Higher moisture content in Bagasse reduces it's efficiency . So better criterion is …

Read More17/3/2015 · Blowdown Mass Flow = Feedwater Mass Flow * Blowdown Rate. Using the Steam Property Calculator, properties are determined using Steam Pressure and Quality = 0 (Saturated Liquid). The Specific Enthalpy is then multiplied by the Mass Flow to get the Energy Flow: Blowdown Energy Flow = Specific Enthalpy * Mass Flow.

Read More17/3/2015 · 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 MoreThe boiler-based steamers utilize a boiler to inject (through pipes) steam into the heating compartment containing the food trays. Steam that does not condense on the food product escapes as a mixture of steam and hot condensate through a drain at the bottom of the set of steam trays.

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