Physics

Physics, 22.06.2019 10:30, gyexisromero10

Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.

answer

Answers: 2

Show answers

Similar questions

Предмет

Engineering, 14.09.2019 00:10, hannah1571

Consider a finned-tube, cross-flow heat exchanger with both fluids unmixed. this heat exchanger is used to heat pressurized water with a flow rate of 1 kg/s from 35 to 125 c using exhaust gas. the exhaust gas enters the heat exchanger at 300 c and exits at 100 c. the overall heat transfer coefficient based on the gas-side area is uh=100 w/m2 .k. find the required gas-side heat transfer area, ah. use both ntu and lmtd methods and compare the results.

Answers: 1

Предмет

Engineering, 18.10.2019 18:30, julesR9814

Hot exhaust gases of an internal combustion engine are to be used to produce saturated water vapor at 2 mpa pressure. the exhaust gases enter the heat exchanger at 400°c at a rate of 32 kg/min while water enters at 15°c. the heat exchanger is not well insulated, and it is estimated that 10 percent of heat given up by the exhaust gases is lost to the surroundings. if the mass flow rate of the exhaust gases is 15 times that of the water, determine the temperature of the exhaust gases at the heat exchanger exit and the rate of heat transfer to the water. use the constant specific heat properties of air for the exhaust gases.

Answers: 2

Предмет

Physics, 25.10.2019 19:43, sophie5064

Hot exhaust gases of an internal combustion engine are to be used to produce saturated water vapor at 2 mpa pressure. the exhaust gases enter the heat exchanger at 400°c at a rate of 32 kg/min while water enters at 15°c. the heat exchanger is not well insulated, and it is estimated that 10 percent of heat given up by the exhaust gases is lost to the surroundings. if the mass flow rate of the exhaust gases is 15 times that of the water, determine (a) the temperature of the exhaust gases at the heat exchanger exit and (b) the rate of heat transfer to the water. use the constant specific heat properties of air for the exhaust gases.

Answers: 3

Предмет

Engineering, 25.10.2019 22:43, Pmedellin27

Air (cp = 1.005 kj/kg·°c) is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.65 m3/s. the combustion gases (cp = 1.10 kj/kg·°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.

Answers: 2

Do you know the correct answer?

Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furn...

Questions in other subjects:

Konu

Physics, 02.11.2020 17:50

(40 points pls help ASAP)Directions Label the model with letters e, n, and p to show its parts. The letter e stands for electron, n for neutron, and p for proton. Then complete ea...

Konu

Mathematics, 02.11.2020 17:50

which transformation maps square PQRS to the same image as reflecting it across the line y= x-1 and then reflecting it across the line y=x+3?

Konu

French, 02.11.2020 17:50

Pagpapaliwanag ng pagbibigay ng maayosna edukasyon...

Konu

Computers and Technology, 02.11.2020 17:50

What are the benefits and considerations when selecting an uncrewed robot versus sending humans to a rescue site?...

Konu

Biology, 02.11.2020 17:50

Scenario - Roger and Novak were discussing the similarities and differences between prokaryotic and eukaryotic cells. Roger stated that prokaryotic cells were simpler than eukaryot...

Konu

Mathematics, 02.11.2020 17:50

Help :(! Please . :( ...

Konu

Chemistry, 02.11.2020 17:50

19 POINTS AND CROWED KING/QUEEN PLease help, Easy work, just all answers are all for different questions Answer all 3 pictures

Konu

Chemistry, 02.11.2020 17:50

What creates charged particles during a thunderstorm...

Konu

French, 02.11.2020 17:50

Mettez au pluriel (Put in the plural.) 1. La fille est blonde. 2. Le garçon est brun. 3. La sœur de Valentin est amusante. 4. Le frère de Stéph...

Konu

Mathematics, 02.11.2020 17:50

Find the equation of the line that has a slope of -3/4 and a y-intercept of 1...

Other tasks in the category: Physics More task