Asteam turbine has isentropic efficiency of 0.8. isentropically, it is supposed to deliver work of 100 kw. what is the actual work delivered by the turbine? a heat pump has a cop of 2.2. it takes 5 kw electric power. what is the heat delivery rate to the room being heated in kw? heat pump is used for winter heating of a room. a refrigerator takes 5 kw electric power. it extracts 3 kw of heat from the space being cooled a. what is the heat delivery rate to the surroundings in kw? b. what is the cop of the refrigerator?

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery

What is the main objective of using reheat rankine cycle?

Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg. m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?