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Make a rough estimate of the cost of steam per ton, produced from a packaged boiler. 10,000 kg per hour of steam are required at 15 bar. Natural gas will be used as the fuel, calorific value 39 MJ/m3 (roughly 1 MMBtu/1000 scf). Take the boiler efficiency as 80%. No condensate will be returned to the boiler.
production of chemicals from coalcoal has been considered a major component of u.s. energy reserves for a long time and
Name two analytical methods commonly used in Industrial Hygiene. Illustrate your answer with two typical examples What are the four significant physical parameters that you would use to assess the thermal comfort of employees working in a hot and..
Water (1.25 kg/s) is to be heated from a pipeline temperature of 15°C to 85°C using superheated steam (13.75 kg/s) at 550°C and 3 MPa in a steady-state process to produce 15 kg/s of heated water. The heating is to be done in a mixing tank by directly..
Solid NH4NO3 (ammonium nitrate) decomposes on heating to 400°C, forming N2O gas and water vapor, H2O. (a)Write a balanced chemical equation
A scheme for concurrently heating separate water and air streams involves passing them through and over an array of tubes, respectively, while the tube wall is heated electrically. To enhance gas-side heat transfer, annular fins of rectangular pro..
Burning the coke deposited on the catalyst particles generates all the heat necessary for catalytic cracking. Therefore, the coke burning rate is a critical parameter to control the rate of cracking. The composition of dry flue gas from the regenerat..
The Telephone transmission rate at the T3 level is 44.7 Mb/s. Each telephone message accupies 64,000b/s. How many simultaneous message could be set along this system?
case 1the diagram below shows a baffled tank with a six blade turbine agitatorfigure 1a is a side viewb is a bottom
Discuss how transmission electron microscopy (TEM) can provide information complementary to that which can be obtained from standard X-ray or neutron diffraction methods, giving suitable examples.
High-density polyethylene may be chlorinated by inducing the random substitution of chlorine atoms for hydrogen.
acetyl chloride is a colorless fuming liquid used primarily in the chemical industry.a how is acetyl chloride produced?
A particle with the mass of a proton is trapped in a box. The particle falls from the state to the state and emits 0.16 meV of energy. What is the size of the box? (nm
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