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Problem 1: A young engineer notices in her plant that 1-kg blocks of brick are routinely removed from a 800 °C oven and are let stand to cool in air at 25 °C. Conscious about cost-cutting and efficiency, she wonders whether some work could be recovered from this process. Calculate the maximum amount of work that could be obtained. The CP of brick is 0.9 kJ/kg K. Can you come up with devices that could extract this work? Problem 2: A Carnot cycle operating between 600 °C and 25 °C absorbs 1000 kJ of heat from the high-temperature reservoir. The work produced is used to power another Carnot cycle which transfers 1000 kJ of heat from 600 °C to a reservoir at higher temperature TH . a) Calculate the amount of work exchanged between the two cycles. b) Calculate the temperature TH . c) Calculate the amount of heat that is transferred to the reservoir at TH .
In Bertrand competition firms decide independently what prices to set to maximizetheir individual profits. Suppose that there are two firms in a market sellingthe same product. Let D(p) = 9 - p be the market demand and let c1 = 1 andc2 = 7 be firm 1 ..
the path followed by a fixed amount of a perfect gas during a reversible process is described by the following
The left side of of the mechanical energy equation has three terms: P/p, (1/2)av^2 and gz. show that each of these terms has the dimension of energy per mass of fluid by....a) converting each term to units of Btu/lbm beginning with pressure in psi, d..
A storage tank is purged continuously with a stream of nitrogen. The purge stream leaving the tank is saturated with the product stored in the tank.
Determine the minimum number of stages required, and determine the minimum reflux ratio
There are four stable isotopes of iron with mass numbers 54, 56, 57, and 58. There are also two radioactive isotopes: iron-53 and iron- 59. Predict modes of decay for these two isotopes. (See Table 18.2.).
Hello Skgupta. I have a last assignment in Operations Management. I am kindly asking for help. I have attached the problems in a word doc. I will also attach an Excel spreadsheet that will help with the problems. Thnak You! Problems* *Use spreadsh..
Estimate the molar ratio of hydrogen to carbon monoxide in the synthesis gas if the feed consists of an equimolar mixture of steam and methane.
Address Search - Air Pollution and Prepare the paper on Air Pollution
What is Expected value for this decision scenario, given that Pr(good) = 0.7? Assume you will face this decision scenario yearly for many years.
A 1-liter container of nitrogen gas (N2) at a temperature of 23c is intially at a pressure of 1.25 atm. because of a slow leak the pressure falls to 1.15 atm 1 hour later what is the leak rate in molecules/second?
A packed tower is designed to recover 98% CO2 from a gas mixture containing 10 % CO2 and 90 % air using water . A relation y = 14 x can be used for equilibrium conditions where y is kg CO2 / kg dry air and x is kg CO2 /kg water. The water to gas r..
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