Engineering, 26.07.2019 18:30 whitakers87
A( is a device that provides the power and motion to manipulate the moving parts of a valve or damper used to control fluid flow. a. actuator b. pilot-operated regulator c. ratio regulator d. sliding stem
Answers: 1
Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Engineering, 04.07.2019 18:20
Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.
Answers: 2
Engineering, 04.07.2019 18:20
Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.
Answers: 2
Engineering, 04.07.2019 19:10
Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?
Answers: 3
A( is a device that provides the power and motion to manipulate the moving parts of a valve or dampe...
Mathematics, 04.12.2019 10:31
Chemistry, 04.12.2019 10:31
Computers and Technology, 04.12.2019 10:31
Physics, 04.12.2019 10:31
Social Studies, 04.12.2019 10:31
Biology, 04.12.2019 10:31
History, 04.12.2019 10:31
Mathematics, 04.12.2019 10:31
Physics, 04.12.2019 10:31
Mathematics, 04.12.2019 10:31
History, 04.12.2019 10:31
World Languages, 04.12.2019 10:31