9.46 Air enters the compressor of an ideal cold air-standard Brayton cycle at 100 kPa, 300 K, with a mass flow rate of 6 kg/s. The compressor pressure ratio is 10, and the turbine inlet temperature is 1400 K. For k 5 1.4, calculate (a) the thermal efficiency of the cycle. (b) the back work ratio. (c) the net power developed, in kW.
Answers: 3
Physics, 21.06.2019 23:00
The key to stability is feedback between the reservoir and the fluxes into and/or out of the reservoir. assume that the rate of outflow from a reservoir depends on the size of the reservoir according to the following relationship: outflow rate= k x (size of reservoir), where k is a constant. a reservoir of water has a volume of 5000 liters, and the rate of outflow at steady state is 25 liters per minute. what is k? (give both the numerical value and its units.) what is the residence time? what is the relationship between k and the residence time?
Answers: 1
Physics, 22.06.2019 16:20
Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow
Answers: 1
Physics, 22.06.2019 17:30
Four objects each with charge +2.0Γ10β7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.
Answers: 1
Physics, 22.06.2019 17:30
Does heating a metal wire increase or decrease its electrical resistance? why?
Answers: 1
9.46 Air enters the compressor of an ideal cold air-standard Brayton cycle at 100 kPa, 300 K, with a...
Mathematics, 01.03.2021 22:00
Mathematics, 01.03.2021 22:00
Geography, 01.03.2021 22:00
Mathematics, 01.03.2021 22:00
Chemistry, 01.03.2021 22:00
Mathematics, 01.03.2021 22:00
Mathematics, 01.03.2021 22:00
History, 01.03.2021 22:00
English, 01.03.2021 22:00
Mathematics, 01.03.2021 22:00