Physics, 22.07.2019 22:00, babyboogrocks5695
Areal (non-carnot) heat engine, operating between heat reservoirs at temperatures of and performs 4.1 kj of net work, and rejects of heat, in a single cycle. what is thermal efficiency of a carnot heat engine, operating between the same heat reservoirs? 37% 43% 50% 62% 56%
Answers: 1
Physics, 22.06.2019 21:40, iancuteodora30
Ahair dryer is basically a duct in which a few layers of electric resistors are placed. a small fan pulls the air in and forces it through the resistors where it is heated. air enters a 1200 w hair dryer at 100 kpa and 22°c and leaves at 47°c. the cross-sectional area of the hair dryer at the exit is 60 cm2. neglecting the power consumed by the fan and the heat losses through the walls of the hair dryer, determine (a) the volume flow rate of air at the inlet and (b) the velocity of the air at the exit.
Answers: 1
Areal (non-carnot) heat engine, operating between heat reservoirs at temperatures of and performs 4....
Mathematics, 20.10.2020 04:01
Mathematics, 20.10.2020 04:01
Mathematics, 20.10.2020 04:01