Give the raw materials, process description,flow sheet, engineering problems faced in the manufacture of GLUE
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Determine the lower heating value, in kJ per kmol of fuel and in kJ per kg of fuel, at 25 oC, 1 atm for \
(a) Gaseous ethane (C2H6).
(b) Liquid ethanol (C2H5OH).
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Give the raw materials,process description, flow sheet,engineering problems faced in manufacture of LEATHER from HIDES AND SKINS
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At a given flow parameter, we would like to increase G' from 0.1 to 0.2. Check which of the following will result.
A. The effect on pressure drop cannot be determined.
B. The pressure drop will decrease.
C. The pressure drop will increase.
D. The pressure drop will remain the same.
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(a) Select eight correct statements from the following list. You
will get one mark for every correct statement selected, but you
will lose one mark for any incorrect statement you select, so do
not just guess. No-one will go below 0 mark regardless of how many
incorrect statements are selected.
1. The tonne of oil equivalent (toe) is a unit of power. 2. Thermal
energy can be entirely converted into mechanical energy using an
internal combustion engine. 3. At present, coal is the most
abundant fossil-fuel in the word. 4. In the UK, oil-fired power
production has been phased out following the high price of oil and
the stringent emission limits introduced with the EU Large
Combustion Plant Directive. 5. SOx and NOx emission is a greater
issue in the operation of CCGT power plants rather than of
coal-fired power plants. 6. Nuclear fusion is currently employed
for electricity production in the UK. 7. In wind turbines,
electromagnetic induction is essential to convert rotor kinetic
energy into electrical energy. 8. A hydrogen fuel cell converts
electricity into H2 and O2. 9. Semiconductor materials are
essential for the operation of photovoltaics. 10. Stall and pitch
control allow the safe operation of wind turbines. 11. Heat is
always transferred from a hot to a cold body resulting is an
overall decrease of entropy in an isolated system. 12. Impulse
water turbines are ideal for high-head and low-flow hydro energy
production. 13. Heat pumps are used to transfer heat from a warm to
a cold environment. 14. District heating can be a form of Combined
Heat and Power. 15. In the UK, tidal ebb generation provides four
power generation peaks a day. 16. Information & Communication
Technolo
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Gs=(xs) / (ys)=(s2+8s+15) / 2
A step change of magnitude is introduced in this system. Determine
(a) Value of response
(b) Y(t) at time t=3 sec
(c) Maximum value of Y(t)
(d) Ultimate value of Y(t)
(e) Minimum value of Y(t)
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How void swelling differs from irradiation growth?
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A (LK) equivalent to A (LK) through a distillation column
connected to the total condenser and partial reboiler.
The mixture of substance) and B is to be separated.
saturized-liquid feed(F; 100) containing 50 mol% of A
When mol/h) is supplied and driven through the design conditions
below, the composition of A in the desillate(D) is 0.96.
In Bottom(B), the creation of A was 0.18. (a) the total unit of
equilibrium (including partial reboiler) and (b) the supply of raw
materials;
Calculate the position of the end (number of positions down from
the top plate), and (c) calculate the slope for each control
line.
Calculate, except that the relative velocity (αA-B) of A and B is
2.57, and the answer of (a) and (b) is an integer.
Design conditions: The operating reflux ratio is set at 1.83 times the minimum reflux ratio (Rmin).
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In solid state sintering, will atoms diffusing from the particle surface to the neck region by lattice diffusion have slower sintering rate than atoms diffusing from the particle surface to the neck region by surface diffusion?
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An old storage tank of “46” m3 stores steam at 6000 kPa and 330
°C. A crack develops at the
top wall of the tank and steam starts to leak out to the
atmosphere. An engineer realizes the
problem on time and stops the leak when the pressure inside the
tank is below 4000 kPa. If
the leak is assumed to be adiabatic and reversible,
a) What is the final temperature of the steam remained in the tank?
(10 points)
b) How much steam is released to the atmosphere? (10 points)
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A steam power plant operates on a practical Rankine Cycle. The steam enters the turbine at 3 MPa and “648” K and is condensed in the condenser at a pressure of 46 kPa. You are assigned on a project to improve the thermal efficiency of this plant. a) Draw the schematic of the plant and determine the thermal efficiency of the practical cycle assuming that the efficiencies of pump and turbine are 0.75 and 0.7, respectively. ( b) Draw a TS diagram and show your suggestions for improving the thermal efficiency (i.e. increasing/decreasing temperature of steam entering into turbine, increasing/decreasing pressure of the boiler or condenser, and any other option). Show the effect of each case you suggest on a TS diagram. Discuss also the quality of steam in each case.
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Your boss has told you that you need to process a full 55 gallon drum of 1-butene that is stored at 15 atm and ambient temperature. You are going to combust this material with the stoichiometric amount of air at 1 atm and the product gasses will emerge at 579 oF with a conversion of 97%. You have a metal gas sphere that is 55 feet in diameter at ambient temperature that contains the air you are feeding in. You want to make sure you have enough air on hand. The 1-butene enters through a pipe that is ½ inch in diameter, while the air comes in through a 1 ½ in diameter pipe. The flue gases exit through a stack that is 6 inches in diameter. If you use another resource for physical properties, remember to cite it. Answer the following questions:
1) What does the pressure gauge on the tank need to read in order for you to make sure you have enough air, in psig?
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