Find all the energy and exergy transfers in and out

Reference no: EM131233621

1. A heat engine operating in an environment at 298 K produces 5 kW of power output with a first law efficiency of 50%. It has a second-law efficiency of 80% and TL = 310 K. Find all the energy and exergy transfers in and out.

2. A flow of nitrogen, 0.1 kg/s, comes out of a compressor stage at 500 kPa, 500 K and is now cooled to 310 K in a counter flowing intercooler by liquid water at 125 kPa, 15?C that leaves at 22?C. Find the flow rate of water and the second-law efficiency for the heat exchanger.

Reference no: EM131233621

Questions Cloud

What is purpose of piece of equipment for pollutant removal : Describe the major equipment associated with advanced treatment processes. What is the purpose of each piece of equipment for pollutant removal? Which solids residuals are generated?

Construct an excel spreadsheet : Construct an Excel spreadsheet to show the repayment of the $3000 loan if the annual interest rate charge was 5.25% compounded monthly the llamas payback and 12 monthly payments of $257.17 what was the total and interest paid over the 12 months

Considering moving to franchise business model : Your family has owned an Italian restaurant since before you were born. In the last 5 years, your family has opened three new locations – all of which have been successful. Now your family is considering moving to a franchise business model. However,..

Determine the number of tons per hour produced : A roll crusher, set at 2 in., produces 120 tph of crushed stone. - Determine the number of tons per hour produced.

Find all the energy and exergy transfers in and out : A heat engine operating in an environment at 298 K produces 5 kW of power output with a first law efficiency of 50%. It has a second-law efficiency of 80% and TL = 310 K. Find all the energy and exergy transfers in and out.

Expression involving h on the right : You buy a saguaro cactus 5 feet high and it grows at a rate of 0.8 inches each year. Express its height h, in inches, as a function of time t, in years, since the purchase. Enter your answer as an equation with on the left side, and an expression..

Mathematical expression for the number of burgers : a) Write a mathematical expression for the number of burgers, x, and the number of hot dogs, y, sold that day. b) Write a mathematical expression for the amount of revenue from this day's sales. Use x for the number of burgers and y for the number ..

Which treatment technologies would you choose for new plant : How must you modify the treatment system to accommodate the new industries and the projected population growth? Which treatment technologies would you choose for a new plant? Why?

What is the second-law efficiency of the compressor process : Air enters a compressor at ambient conditions of 100 kPa, 300 K and exits at 800 kPa. If the isentropic compressor efficiency is 85%, what is the second-law efficiency of the compressor process?

User Account

All Pages