Engineering, 14.09.2019 00:30 jonnycampbell223

An inventor brings you a device. she claims that it will collect solar energy at 120c and that each 1m^2 of collecting surface will provide power from the attached engine at a rate of 0.5 kw/m2. you know that the solar energy on a clear day around noon in atlanta does not exceed 1 kw/m2. you are asked to decide the following a) what is the first and 2nd law of thermodynamics? b) does the proposed device violate the first law? why or why not? list any assumptions you may make. c) does it violate the second law? why or why not? list any assumptions you may make. d) could the device operate as advertised if you used the device somewhere else instead of atlanta? what would the requirements on the climate of that place?

Answers: 1

Show answers

Another question on Engineering

Engineering, 03.07.2019 15:10

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Answers: 1

Answer

Engineering, 04.07.2019 18:10

Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation

Answers: 1

Answer

Engineering, 04.07.2019 18:10

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer

Answers: 2

Answer

Engineering, 04.07.2019 18:10

What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information

Answers: 3

Answer

You know the right answer?

An inventor brings you a device. she claims that it will collect solar energy at 120c and that each...

Questions