For material and energy balance question. If the flow rate is given in the form of...
For material and energy balance question.
If the flow rate is given in the form of Standard Cubic Meters per
hour (SCMH) but the stream is not at standard temperatrure and
pressure, do we need to convert it to our actual flow rate before
we analyze the composition of stream and do energy balance ?
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For material and energy balance question.
If the flow rate is given in the form of...
A natural gas contains 96 wt% CH4 and the balance C2H6. Five hundred cubic meters per...
A natural gas contains 96 wt% CH4 and the balance C2H6. Five hundred cubic meters per hour of this gas at 40 oC and 1.1 bar is to be burned with 30% excess air. The air flow meter is calibrated to read the volumetric flow rate at standard temperature and pressure. What should be the meter read (in SCMH) when the flow rate is set to the desired value?
Problem 5.55 Gas Combustion Look up the definition of a standard cubic meter. Check conversion factors...
Problem 5.55 Gas Combustion Look up the definition of a standard cubic meter. Check conversion factors for units. Check significant figures throughout the calculation. | A natural gas contains 90.0 wt% CH4 and the balance c2Rs Five hundred cubic meters per hour of this gas at 40.0°C and 1.30 bar is to be burned with 50.0% excess air. The air flowmeter is calibrated to read the volumetric flow rate at standard temperature and pressure. What should the meter read (in...
Question 2 A feed material stream flowing at a rate of 100 kg/h is fed to...
Question 2 A feed material stream flowing at a rate of 100 kg/h is fed to a distillation column. The feed contains 45 wt.% benzene (C6H6) and the remainder toluene (C6H5CH3). The distillate stream contains 98 wt.% benzene. The bottom stream contains 10 wt.% of the benzene fed to the distillation column. a) Draw a block flow diagram of the process and annotate appropriately with the data provided, state the basis and define variables for unknown flow rates and compositions....
Methane (CH4) and oxygen (O2) react to form formaldehyde (CH2O) (reaction #1), with a competing side...
Methane (CH4) and oxygen (O2) react to form formaldehyde (CH2O) (reaction #1), with a competing side reaction (#2) in which methane and oxygen form carbon dioxide (CO2): CH4(v) + O2(g) -> CH2O(v) + H2O(l) (reaction #1) CH4(v) + 2O2(g) -> CO2(g) + 2H2O(l) (reaction #2) A fresh feed of an equimolar gas mixture of CH4 and O2 is combined with a recycle stream and fed to a reactor. The single-pass conversion of CH4 is 30% and the selectivity of CH2O...
A dam is put on a river that has a unblocked flow rate of 2 meter/second....
A dam is put on a river that has a unblocked flow rate of 2 meter/second. The new dam then blocks the water and forces it through a generation system. If 1,000,000 cubic meters of water flowed each hour in the river before the dam went in, how much electric power ( Energy / time) can be expected to be grabbed from this water once the dam is in place? Use a 50% effective conversion of the kinetic energy of...
Problem The relation between pressure drop and flow rate of laminar flows in a pipe is given by l...
Problem The relation between pressure drop and flow rate of laminar flows in a pipe is given by l bar 50 m 20° 128u dz PS Flow rate Q is the product of the average velocity and the cross-sectional area of the pipe What is the pressure needed to drive a viscous oil flow upslope through a 12 cm diameter pipe? The length of the pipe is 50 meters. The slope is 20°. At the end of the pipe, the...
MATERIAL AND ENERGY BALANCE
a) Superheated steam at 300°C and 5.0 bar absolute is used to heat a counter-currently flowing stream of propylene gas in an adiabatic heat exchanger. The propylene gas enters the heat exchanger at 40°C and 250 kPa and leaves at 250°C. All of the steam condenses and emerge from the heat exchanger as a saturated liquid at the same pressure. i) Taking a basis of 100 mol/s of the feed gas, draw a...
Question: Solids soaked with liquid hexane are dried by being contacted with nitrogen at an elevated...
Question: Solids soaked with liquid hexane are dried by being contacted with nitrogen at an elevated temperature. The gas stream leaving the dryer is at 80°C, 1 atm absolute and 50% relative saturation. (a) One of several possibilities for recovering the hexane from the gas is to send the stream to a cooling condenser. The gas stream leaving the condenser would contain 5.00 moles% of hexane, and hexane condensate would be recovered at a rate of 1.50 kmol/min. The condenser...
please use assumptions and energy balance equations Ethane enters at furnace at a volumetric flow rate...
please use assumptions and energy balance equations
Ethane enters at furnace at a volumetric flow rate of 0.25 m3/s, a temperature of 298 K, and a pressure of 101 kPa. In the furnace, the ethane mixes with 10% excess air, and burns to completion. The products exit at 700 K. Determine the rate of heat release from this combustion process.
1. (Mechanical Energy Balance) A hydroelectric plant consists of a stream flowing at 100 gal/min and...
1. (Mechanical Energy Balance) A hydroelectric plant consists of a stream flowing at 100 gal/min and 10 mph (miles per hour) before entering a turbine, after the turbine the stream flows at 8 mph (is unchanged.) (Problem courtesy of Evan Smith ChBE 201 '08) a. How much shaft work does the stream do on the turbine? Please express your answer in Sl units (J/s), [Hint: use mechanical energy balance.] b. If the turbine was replaced with 1 m2 solar cell...
Problem 5.55 Gas Combustion Look up the definition of a standard cubic meter. Check conversion factors for units. Check significant figures throughout the calculation. | A natural gas contains 90.0 wt% CH4 and the balance c2Rs Five hundred cubic meters per hour of this gas at 40.0°C and 1.30 bar is to be burned with 50.0% excess air. The air flowmeter is calibrated to read the volumetric flow rate at standard temperature and pressure. What should the meter read (in...
Question 2 A feed material stream flowing at a rate of 100 kg/h is fed to a distillation column. The feed contains 45 wt.% benzene (C6H6) and the remainder toluene (C6H5CH3). The distillate stream contains 98 wt.% benzene. The bottom stream contains 10 wt.% of the benzene fed to the distillation column. a) Draw a block flow diagram of the process and annotate appropriately with the data provided, state the basis and define variables for unknown flow rates and compositions....
Problem The relation between pressure drop and flow rate of laminar flows in a pipe is given by l bar 50 m 20° 128u dz PS Flow rate Q is the product of the average velocity and the cross-sectional area of the pipe What is the pressure needed to drive a viscous oil flow upslope through a 12 cm diameter pipe? The length of the pipe is 50 meters. The slope is 20°. At the end of the pipe, the...
please use assumptions and energy balance equations
Ethane enters at furnace at a volumetric flow rate of 0.25 m3/s, a temperature of 298 K, and a pressure of 101 kPa. In the furnace, the ethane mixes with 10% excess air, and burns to completion. The products exit at 700 K. Determine the rate of heat release from this combustion process.
1. (Mechanical Energy Balance) A hydroelectric plant consists of a stream flowing at 100 gal/min and 10 mph (miles per hour) before entering a turbine, after the turbine the stream flows at 8 mph (is unchanged.) (Problem courtesy of Evan Smith ChBE 201 '08) a. How much shaft work does the stream do on the turbine? Please express your answer in Sl units (J/s), [Hint: use mechanical energy balance.] b. If the turbine was replaced with 1 m2 solar cell...
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