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A boiler delivers 5400 kg steam per hour at a pressure of 7.5 bar and with a dryness fraction of 0.98. The feed water to the boiler is at a temperature of 41.5oC. The coal used for firing the boiler has a calorific value of 31000 kJ/kg and is used at the rate of 670 kg/h. Determine: (a) the thermal efficiency of …

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Learn Moreautoclave, shredder and boiler system. The disposal capacity of one unit is up to 20 tons per day. In MWC series, autoclave and shredder work independently, and medical waste is firstly sterilized in the autoclave at regulated temperature and period, and then be dumped into shredder.

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Learn MoreELECTRIC BOILER Steam capacity, kg/h 600 900 1200 1500 1800 2400 3000 3600 4200 4800 5400; Fuel: Design pressure bar-g: Choice of pump unit type depending on steam capacity and design pressure

Learn Moresteam main to the new unit. The use of the tables is best described by solving a typical problem: Assume a boiler operates at a steam pressure of 15 psig and is supplying a 300-ton steam absorption machine which requires a minimum operating pressure of 12 psig. There is …

Learn MoreJul 28, 2016 · 4.) maximum steam generating capacity in pounds of tonnes per hours.This term is the most informative and easiest to understand if it refers to steam properties the boiler is designed for. (Large boiler capacities are often given in lbs or tonnes of steam evaporated per hour under specified steam conditions, for smaller boilers capacity is

Learn MoreA back pressure steam cycle works as follows. The boiler p roduces 8 kg/s of steam at 40 bar and 500 oC. This is expanded to 2 bar with an isentr opic efficiency of 0.88. The pum p is supplied w ith feed water at 0.5 bar and 30 oC and delivers it to the boiler at 31 oC and 40 bar. Calculate the net power output of the cycle. (Answer 5.24 M W )

Learn MoreSTEAM BOILERS. Thermax offers coil type steam boilers in the range of 50 to 850 kg steam per hour. The coil type boiler generates steam instantly and is extremely easy to install and commission. These boilers are safe, reliable and designed to operate on a wide range of liquid and gaseous fuels including heavy oil, light oil, gas, and dual fuel

Learn MoreSince the amount of steam delivered varies with temperature and pressure, a common expression of the boiler capacity is the heat transferred over time expressed as British Thermal Units per hour. A boilers capacity is usually expressed as kBtu/hour (1000 Btu/hour) and can be calculated as. W = (hg - hf) m (1) where. W = boiler capacity (Btu/h, kW)

Learn MoreThe 'from and at' rating is widely used as a datum by shell boiler manufacturers to give a boiler a rating which shows the amount of steam in kg/h which the boiler can create 'from and at 100°C',at atmospheric pressure. Each kilogram of steam would then have received 2 257 kJ of heat from the boiler. Shell boilers are often operated

Learn MoreA boiler delivers 5400 kg steam per hour at a pressure of 7.5 bar and with a dryness fraction of 0.98. The feed water to the boiler is at a temperature of 41.5oC. The coal used for firing the boiler has a calorific value of 31000 kJ/kg and is used at the rate of 670 kg/h. Determine: (a) the thermal efficiency of the boiler … Learn More

Learn MoreA boiler is an enclosed vessel that provides a means for combustion heat to be transferred into water until it becomes heated water or steam. The hot water or steam under pressure is then usable for transferring the heat to a process. Water is a

Learn MoreA steam boiler is a power generation device, used for generating steam by applying the heat energy to water. The pressure range of earlier boilers ranges from low pressure to medium pressure (7 kPa to 2000 kPa/ 1psi to 290 psi). The present boilers are more useful because it …

Learn 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.

Learn MoreQ = Steam flow rate in kg/hr h = Enthalpy of fed water kcal/kg H = Steam enthalpy in kcal/kg q = fuel firing rate kg/hr GCV = Gross calorific value of fuel, kcal/kg 9. List out any four loss components in a heat balance of a boiler. Ans. a. Dry flue gas loss b. Surface heat loss c. Loss due to incomplete combustion d.

Learn MoreSteam Capacity Conversion Table | Industrial Controls

Learn MoreThe 'from and at' rating is widely used as a datum by shell boiler manufacturers to give a boiler a rating which shows the amount of steam in kg/h which the boiler can create 'from and at 100°C',at atmospheric pressure. Each kilogram of steam would then have received 2 257 kJ of heat from the boiler. Shell boilers are often operated

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Learn MoreJul 28, 2016 · 4.) maximum steam generating capacity in pounds of tonnes per hours.This term is the most informative and easiest to understand if it refers to steam properties the boiler is designed for. (Large boiler capacities are often given in lbs or tonnes of steam evaporated per hour under specified steam conditions, for smaller boilers capacity is

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