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1. 100 moles of a fuel containing methane and butane is burned with 25% excess air in a furnace producing stack gas at 300C and 105 kPa. Determine the amount of 100 psi saturated steam that can be produced from water fed in at 500F, if
a) the stack gas does not contain CH4, C4H10or CO,
b) the dew point of the stack gas is 58 0C, and
c) the air enters at 200C as dry air.
An insulated cylinder fitted with a weightless latched piston contains steam at 5 bar, 300 °C. The piston is unlatched and the steam expands against ambient air at P = 1 bar. The temperature of steam in the final state is 142 °C. Determine the ene..
Describe the major technical areas involved in engineering a new biomaterial such as a contact lens. Are there differences with other biomaterial based products?
If the top surface of the plate is well insulated, estimate the temperature the plate reaches when the ambient air is quiescent and at a temperature of 0°C.
The lower flammable limit (LFL) of methanol in air is 6.0 mole%. Calculate the temperature at which the equilibrium percentage of methanol vapor in a saturated methanol-air mixture would equal the LFL. (This temperature is a rough estimate of the ..
The process used in the manufacture of aniline from nitrobenzene is described in Appendix F, Design Problem F.8, which is available in the online material at booksite.Elsevier.com/Towler. The process involves six significant stages:
Steam in a closed system is compressed by reversible isothermal process in a heat bath at 250 °C, starting from an initial pressure of 15 bar. During the process, the steam receives 400 kJ/kg of work. Determine the final state and the amount of he..
Your are designing a single flash separation process for a stream that contains 45% n-pentane (the rest is propionaldehyde). The mixture is to be flashed at 35 °C and you must determine the pressure so that the purity of n-pentane is 95%. What is ..
Additional data: Assume for simplicity that the ideal-gas heat capacities are constant: n-hexane = 176 J/mol K; n-octane = 247 J/mol K.
Combustion of Ethane: Stack Gas Molar Composition, Ethane is burned with 50% excess air. The percentage conversion of ethane is 90%. Of the ethane burned, 25% reacts to form CO and the balance reacts to form carbon dioxide
The steady-state error for a unit ramp input
Dependence of measured energy on temperature for a pyrometer - Plot the volumetric flow rate vs. height
A Small reaction bomb fitted with a sensitive pressure-measuring device is flushed out andfilled with pure reactant A at 1atm. Pressure. The operation is carried out at 25oC,atemperature low enough that the reaction does not proceed to any appreci..
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