Questions
A gas turbine operates with two stages of compression with an intercooler between the stages. Air...

A gas turbine operates with two stages of compression with an intercooler between the stages. Air enters the first stage at 100 kPa and 300 K. The pressure ratio across each compressor stage is 5 to 1 and each stage has an isentropic efficiency of 85%. Air exits the intercooler at 330 K. The maximum cycle temperature is 1500 K and the cycle has a single turbine stage that works isentropically. Calculate the mass flow rate of the air if the power output is 30MW and the cycle thermal efficiency.

In: Mechanical Engineering

A gas turbine operates with two stages of compression with an intercooler between the stages. Air...

A gas turbine operates with two stages of compression with an intercooler between the stages. Air enters the first stage at 100 kPa and 300 K. The pressure ratio across each compressor stage is 5 to 1 and each stage has an isentropic efficiency of 85%. Air exits the intercooler at 330 K. The maximum cycle temperature is 1500 K and the cycle has a single turbine stage that works isentropically. Calculate the exit temperature of each compressor stage and the total work required.

In: Mechanical Engineering

Suppose Anheuser-Busch InBev is considering introducing a new ultra-light beer with zero calories to be called...

Suppose Anheuser-Busch InBev is considering introducing a new ultra-light beer with zero calories to be called BudZero. The firm believes that the beer’s flavor and appeal to calorie-conscious drinkers will make it a success. The cost of bringing the beer to market is $200 million, but Anheuser-Busch InBev expects first year incremental free cash flows from BudZero to be $100 million and to grow at 3% per year thereafter. If Anheuser-Busch InBev’s WACC is 5.7%, should it go ahead with the project?

In: Finance

ABC Zimbabwe Limited is a private company wholly(100%) owned by a Zimbabwean with its headoffice in...

ABC Zimbabwe Limited is a private company wholly(100%) owned by a Zimbabwean with its headoffice in Harare.The company is into the manufacturing and selling of earth moving equipment to the mines,construction companies and the government in the country and the COMESA region.You have been appointed as the marketing manager for ABC Zimbabwe Limited and your first task is to present a single paper to management identifying and recommending the type of marketing channels the organisation would use,the function of the marketing channels and the criteria you would use to select the channels if any?

In: Operations Management

We consider a GSP auction with four bidders, A, B, C and D. Since there are...

We consider a GSP auction with four bidders, A, B, C and D. Since there are four bidders only the three highest bidders will be displayed). The click frequency of the first, second and third positions are 100 clicks/hour, 75 clicks/hour and 35 clicks/hour, respectively. Bidders’valuation per click are vA = 10, vB = 6, vC = 4, vD = 3. Bidder B, C and D bid 5, 3 and 1, respectively.

What is the optimal bid for A?

In: Economics

One kilogram of boiling water is vaporized to steam at 100 kPa in a frictionless piston-and-cylinder...

One kilogram of boiling water is vaporized to steam at 100 kPa in a frictionless piston-and-cylinder device. Using the Steam Tables, answer the following:

  1. Is the heat needed to vaporize the water to steam equal to the change in enthalpy? Or TDS?
  2. To calculate the work done by the steam, is the first law of thermodynamics equation or the general equation for work applicable?
  3. Is the entropy generation equal to the change in entropy of the water?
  4. Does the heat required for the vaporization of boiling water greater than the work done?

Support your answers with calculations and explanations.

In: Other

You just got a job.  You ask for a loan from your parents to pay for day...

  1. You just got a job.  You ask for a loan from your parents to pay for day to day expenses.  Your parents agreed to lend you the money if you agree to pay them back within six months at an interest rate of 3%.  You can pay them $100 at the end of the first two months, $125 for months 3 and 4 and $150 for months 5 and 6.  Calculate the present value.
  1. $695.03                b)  $671.81                  c) $765.35                   d)  $742.98   

In: Finance

The research is to be carried out to analyse the performance of evaporative cooler model with...

The research is to be carried out to analyse the performance of evaporative cooler model with simple surfaces and honeycomb structured using R 290/R410 c with blend mixture. it is to be tested over the 25% load, 50% load, 75% load and 100% load conditions....
First propose a unique arrangement for the testing rig. and then formulate a mathematical model using fortran 77 performe simulation of the system and validate the results using available standard results......

coding is to be done in the Fortran 77 only. no other software will be entertained...

In: Mechanical Engineering

Tutorial 3 Question 1 (24 Marks – 43 Minutes) Supp 2013 Nov Jonca CC manufactures a...

Tutorial 3 Question 1 (24 Marks – 43 Minutes) Supp 2013 Nov Jonca CC manufactures a single product in a single process and uses a process costing system. The following information for March 2013 is available: Work in process - 1 March 2013 45 000 units - Material - 100% complete N$180 000 - Conversion costs - 60% complete N$78 750 Material issued for 186 000 units N$651 000 Conversion costs N$381 915 Units completed 160 500 units Work in process - 31 March 2013 27 000 units - Material - 100% complete - Conversion costs - 40% complete I. Material is added at the beginning of the process. Conversion costs are incurred evenly throughout the process. II. Normal spoilage is estimated at 10% of input. III. Losses occur when the process is 50% complete. Page 20 of 66 IV. The first-in-first-out (FIFO) method of inventory valuation is used. REQUIRED: Marks Prepare the following statements for March 2013: 1.1 Quantity statement (inclusive of equivalent units) 11 1.2 Production cost statement per unit 4 1.3 Cost allocation statement 9 TOTAL MARKS 24

In: Accounting

First-Rate Ballroom, Inc., a national convention planner has 2,500 common shares and 1,000 bonds outstanding. Its...

First-Rate Ballroom, Inc., a national convention planner has 2,500 common shares and 1,000 bonds outstanding. Its securities have been performing very well in the marketplace. It enjoys a common stock price of $45 per share, up from $35 a year ago. Its bonds have also performed well, currently priced at $950 per bond, up from $899 a year ago. Its stock has a beta coefficient of 2.5 and a market risk premium of 8.5%. The yield on 30-year Treasury Bonds is 5.5%. First Rate Ballroom's bonds are rather typical for the industry; having 30-year maturities, a 5% coupon rate, and a $1000 face value. What is the WACC of First-Rate Ballroom? First Rate is in the 35% marginal tax rate?
please show work

In: Finance