Engineering, 27.02.2020 21:42 19deleonl
A heat recovery system (HRS) is used to conserve heat from the surroundings and supply it to the Mars Rover. The HRS fluid loops use Freon as the working fluid. The instrumentation must be kept as a temperature greater than −67 degrees Fahrenheit [°F] to avoid damage.
The temperature in the area of Mars where the rover is exploring is 189 kelvins [K]. If the system must remove 47.4
British Thermal Units [BTU] of energy, what volume of Freon is needed in units of liters [L]?
Some facts about Freon:
The specific heat of Freon is 74
joules per mole kelvin J/(mol °K)]
The specific gravity of Freon is 1.49
The molecular mass of Freon is 120 grams per mole [g/mol]
Answers: 3
Another question on Engineering
Engineering, 04.07.2019 18:10
The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false
Answers: 2
Engineering, 04.07.2019 18:20
For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor
Answers: 3
Engineering, 04.07.2019 19:10
10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.
Answers: 2
Engineering, 04.07.2019 19:10
The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false
Answers: 2
You know the right answer?
A heat recovery system (HRS) is used to conserve heat from the surroundings and supply it to the Mar...
Questions
Spanish, 29.07.2019 21:30
History, 29.07.2019 21:30
Computers and Technology, 29.07.2019 21:30
Mathematics, 29.07.2019 21:30
Mathematics, 29.07.2019 21:30
History, 29.07.2019 21:30
Business, 29.07.2019 21:30
Social Studies, 29.07.2019 21:30
English, 29.07.2019 21:30
