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ACCOUNTING AND FINANCIAL ENGINEERING - ANSWER 34.9 : (a) P (1) = P (2) = P (3) = P (4) = P (5) = P (6) = 1 / 6. (b) Average score of D = (1 + 2 + 3 + 4 + 5 + 6) / 6 = 3.5. (c) Expected value Sn = n (average score) = 3.5 n. (d) D* (D = 1) = 1 - 3.5 = - 2.5, D* (D = 2) = 2 - 3.5 = - 1.5, D* (D = 3) = 3 - 3.5 = - 0.5, D* (D = 4) = 4 - 3.5 = 0.5, D* (D = 5) = 5 - 3.5 = 1.5, D* (D = 6) = 6 - 3.5 = 2.5. (e) Sn = 3.5 n + nD*. (f) Expected value of D* = average of D* = [ D* (D = 1) + D* (D = 2) + D* (D = 3) + D* (D = 4) + D* (D = 5) + D* (D = 6) ] / 6 = (- 2.5 - 1.5 - 0.5 + 0.5 + 1.5 + 2.5) / 6 = 0. The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS +61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.

I would like to know how to size a partial combustion reactor processing methane and oxygen, as a function of the flowrate and of the pressure.

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A concentric, counter-current heat exchanger is used to cool lubricating oil. Water is used as the coolant. The mass flow rate of oil into the heat exchanger is 0.1 kg / s = FO. For oil, the inlet temperature TIO = 100 degree Celsius and the outlet temperature TOO = 55 degree Celsius. For water, the inlet temperature TIW = 35 degree Celsius and the outlet temperature TOW = 42 degree Celsius. What is the mass flow rate of water in kg / s, FW needed to maintain these operating conditions? Constant for heat capacity of oil is CO = 2131 J /(kg K) and for water is CW = 4178 J /(kg K). Use the equation (FO)(CO)(TIO – TOO) = (FW)(CW)(TOW – TIW).

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HEAT TRANSFER - EXAMPLE 5.3 : In a cylinder with a hollow, let a is outside radius and b is the inside radius. In a steady state temperature distribution with no heat generation, the differential equation is (d / dr) (r dT / dr) = 0 where r is for radius and T is for temperature. (a) Integrate the heat equation above into T(r) in term of r. (b) At r = a, T = c; at r = b, T = d. Find the heat equation of T(r) in term of r, a, b, c, d.

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What is chemicals?

1 Answers   Thirumalai Chemicals,

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Explain what are the methods involved to test helium leak testing in a vacuum system?

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Name some common problems associated with dense phase pneumatic conveying?

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BIOCHEMICAL ENGINEERING INSTRUMENTATION - EXAMPLE 29.4 : The resolution of separation, Rs for chromatography is given by the formula Rs = (difference in retention time) / (average width at the base). In a chromatogram, 3 peaks a, b and c are found. Average widths W at the bases of the solutes are : Wa = 20 s, Wb = 40 s, Wc = 30 s. Resolutions of separation, Rs for solutes b and c in comparison to a are 2 and 4 respectively. The differences in retention times T for b and c in comparison to a are (Tb - Ta) and (Tc - Ta), Ta = Tc - Tb : (a) Form 2 equations involving Rs as a function of Wa, Wb, Wc, Ta, Tb and Tc. (b) Find the values of Ta, Tb and Tc.

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significance of fouling factor in shell and tube heat exchnager

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what is extractive distillaion

6 Answers   ONGC,

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plz send the interview questions in the written test asked by hindustan petroleum corporation ltd.Iam a b>tech in chemical engineering.My written test is on feb 2008.urgent plz.send the questions to indra_bits10@yahoo.com

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how much type question asking sulfuric acid plat interview. if not maintain acid temp. and conc. what will happen

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THERMODYNAMIC - EXAMPLE 10.3 : According to Raoult's law, the pressure when vapor is completely condensed, P = x(1) P(1) + x(2) P(2) ... + x(n) P(n) when x(1), x(2) ... x(n) are the mole fractions of component 1, 2 ... n and P(1), P(2) ... P(n) are the vapor pressures of component 1, 2 ... n. A vapor at 74 degree Celsius containing 70 mole % water and 30 mole % ethanol is to be completely condensed. At the temperature of 74 degree Celsius vapor pressure is 0.38 atm for water and 0.97 atm for ethanol. What is the minimum pressure the compressor must be operated?

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