The boiler is a kind of special equipment and its export to the international market and competitiveness in the world lie in its conformity marks from international authoritative certification bodies.
ZOZEN has extended its sales network from the entire Asia to Africa, Oceania, Eastern Europe, America and other regions over the years. ZOZEN also has obtained important international certifications such as ASME, PED, DOSH, IBR, and has been qualified for independent import and export of industrial boilers. Its various series of boiler products have been sold to more than 100 countries and regions around the world.
SZS series boiler is designed with longitudinal double drums and " D " type chamber structure.
DetailDHL corner tube boiler is field assembled boiler, it uses a piping system as the frame of the entire boiler.
DetailDZL series package boilers are horizontal three-pass water & fire tube boilers with a chain grate stoker structure
DetailYLW thermal oil heater is square coil horizontal chain grate shop-assembled heater
DetailYQL series gas-fired thermal oil boilers have a three-pass round coil structure.
DetailA conical coil is used for the effective protection of the furnace wall at the boiler end.
DetailContact Information
No.76 Xinda Rd.,Zhoutie Town, Yixing City, Jiangsu Province, China
The heat supplied to the steam in the boiler is 3200 kJ/kg. The heat rejected by the steam to the cooling water in the condenser is 2400 kJ/kg. The feed-pump work required to pump the condensate back into the boiler is 7 kW.
View MoreSteam, 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 …
View MoreDry saturated steam at 3 bar g is used to heat water flowing at a constant rate of 1.5 l/s from 10°C to 60°C. hfg at 3 bar g is 2 133.4 kJ/kg, and the specific heat of water is 4.19 kJ/kg °C. Determine the steam flowrate from Equation 2.6.7: As 1 litre of water has a mass of 1 kg, the mass flowrate = 1.5 kg/s
View Moreh g = enthalpy of dry steam at boiler pressure, kJ/kg h sub,1 = enthalpy of water at t 1 °C, kJ/kg C p = specific heat of water, kJ/kgK. Construction: The Green’s economizer used with the stationary boilers is shown in Fig. 30.3 along with its construction details.
View More2. In a certain steam plant the turbine develops 1000 kW. The heat supplied to the steam in the boiler is 2800 kJ/kg, the heat rejected by the system from cooling water in the condenser is 2100 kJ/kg and the feed pump work required to pump the condensate back into the boiler is 5 kW. Calculate the steam flow round the cycle in kg/s.
View MoreTo answer this question we need to make several assmptions. 1. To make one kg of steam we need one kg of water. 2. Let water be at room temperature of say 20° C. 3. No loss of heat in heating the water from 20°C to its boiling point 100° C or conv
View MoreIn a steam power plant 1.5 kg of water is supplied per second to the boiler. The enthalpy and velocity of water entering the boiler are 800 kJ/kg and 10 m/s. Heat at the rate of 2200 kJ/kg of water is supplied to the water. The steam after passing through the turbine comes out with a velocity of 50 m/s and enthalpy of 2520kJ/kg.
View MoreQ = (2257 kJ/kg) (5 kg) = 11285 kJ . Specific Enthalpy of Superheated Steam. The specific enthalpy of superheated steam can be calculated from: h s = h g + c ps (t s - t f) (5) where. h s = enthalpy of superheated steam (kJ/kg) c ps = specific heat of steam at constant pressure = 1.860 (kJ/kg o C) t f = saturation temperature (o C)
View MoreHow much energy is required to raise 63 kg of ice at 0 degrees C to saturated steam at 100 degrees C. Specific heat capacity of water is 4.2 kJ/kg K. Specific latent heat of ice is 335 kJ/kg. Specific latent heat of steam is 2,257 kJ/kg. a) 35,490 kJ b) 21,775 kJ c) 53,107 kJ d) 189,756 kJ
View MoreM = 7 meter cube = 7000 Ltrs or 7000 Kg The heat capacity Cp of water is 4.186kJ/kg-C ΔT = 80-20 = 60 C So, the energy required to raise the temperature of 7000 kg of water from 20C to 80C is: Energy E = m•Cp•ΔT = 7000 x 4.186 x 60 = 1758120 kJ or = 488 .36 KW Power = Energy / time And this is 488.36 Kilo Watts of power (since 1J/s = 1W)
View MoreThe steam tables also show that the surplus heat will be 398−272, i.e. 126 kJ/kg. The latent heat of steam at −760 mbar vacuum is 2346 kJ/kg, so 126/2346 = 0.05 kg of steam/kg of liquor will be flashed off. This may save subsequent evaporation, and if the condenser takes the form of some kind of process heater, all the heat can be recovered.
View MoreThe excess energy = 2 741.7 - 2 706.7 = 35 kJ/kg, and this is used to raise the temperature of the steam from the saturation temperature of 120 °C to 136 °C. The degree of superheat can be determined either by using superheated steam tables, or by using a Mollier chart.
View MoreFrom the above diagrams, an energy equation balance on the various components of the system leads to the following equations for the total turbine work output (w T kJ/kg), the total heat input to the steam generator (q in kJ/kg) and the thermal efficiency th.. Performance Results - Finally we have all the data and equations required to determine the performance with the following results:
View MoreA boiler generates 8 kg of dry saturated steam per kg of fuel oil burned. Fuel oil heating value is 33 000 kJ/kg. Feedwater is supplied at 70°C, and the boiler pressure is 1400 kPa. Calculate the boiler efficiency. 57.3% 60.5% 74.7% 85.0% 92.3%
View MoreHot condensate at 7 bar g has a heat content of about 721 kJ/kg. When it is released to atmospheric pressure (0 bar g), each kilogram of water can only retain about 419 kJ of heat. The excess energy in each kilogram of the condensate is therefore 721 – 419 = 302 kJ.
View MoreDuring a boiler test, a boiler burned 632 kg of coal with a heating value of 30,000 kJ/kg. The boiler generated 7000 kg of dry steam at 10,000 kPa from feedwater at 120°C. Determine the boiler efficiency.
View More[26.4], where m steam is the mass flow of steam into the reboiler (kg/s) and ΔH vap is the latent heat of condensation of the steam under the conditions (temperature/pressure) found in the reboiler (kJ/kg). This provides the energy input in kJ/s or kW.
View MoreIn a steam plant where you work, the turbine develops 1000 kW. The heat supplied to the steam in the boiler is 2800 kJ/kg and the heat rejected by the steam to the cooling water in the condenser is 2100 kJ/kg.
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