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Consider a simple double-pipe heat exchanger where a liquid stream is being heated by condensing leaves (z L) at TL(L. t). Heat transfer takes place between the steam (TS and the wa (T nd then is a "lumped" variable, Ts.
a) Develop a mathematical model to determine the dynamics of wall temperature Tw as function of time. ]
b) Develop a mathematical model to determine the dynamics temperature TL of Liquid
Find the density of liquid methane in a handbook and compare your answer to the tabulated value.
If one of the machines has its field excitation adjusted such that it delivers 125 A lagging current, determine the armature current, power factor, excitation voltage, and power angle of each machine.
A precipitate formed when the sample solution was made basic with NaOH. Which ion or ions are present in the sample solution?
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..
air at 4mpa and 3000c enters a will insulated turbine operating at steady state with negligible velocity. the air
It is common that people are exposed to more than one hazardous substance at a time. The different substances may interact such that one substance may alter the toxicity of one or more of the chemicals present. Discuss the possible interactions th..
Calculate the volume of lithium hydroxide at 0.12 M. required to neutralize 25 mL of sulphuric acid at 2.5 M. 3 marks 2. A sample of 2.5 g of solid NaOH will neutralize 125 mL of sulphuric acid. Calculate the molarity of the sulphuric acid. 3 mark..
A plating waste with a flow of 50 L/min contains 274 mg/L of NaCN. Determine the amounts of chlorine as Ca(OCl)2 and NaOH required to: (a) Oxidize the cyanide to cyanide; and (b) Oxidize the cyanide to CO2 and H2O.
Estimate a value for the total project cost that will give 98% confidence that the project can be carried out within the amount estimated.
A substance, A2B, has the composition by mass of 60% A and 40% B. What is the composition of AB2 by mass?
Assuming 8.0 hours of useful sunlight per day, calculate the minimum solar panel surface area necessary to provide all of a typical home's electricity. (See Exercise 96 for the energy rate supplied by the sun.)
Present/display a research paper with the topic Introduction to Petroleum Engineering,giving preferences to the changes that are generated through the discipline in our world today.
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