Question: The autoignition temperature of a fuel is defined as the
The autoignition temperature of a fuel is defined as the temperature at which a fuel–air mixture would self-explode and ignite. Thus, it sets an upper limit on the temperature of the hot reservoir in an automobile engine. The autoignition temperatures for commonly available gasoline and diesel fuel are about 495 oF and 600 oF, respectively. What are the maximum Carnot efficiencies of a gasoline engine and a diesel engine if the cold reservoir temperature is 40oC?
Answer to relevant QuestionsBecause of limitations on materials, the maximum temperature of the superheated steam used in a turbine for the generation of electricity is about 450 oC. (a) If the steam condenser operates at 20 oC, what is the maxi-mum ...An ideal heat pump is equivalent to a Carnot engine running in reverse. (a) Show that the Carnot COP of the heat pump is COPC = 1/εC where εC is the Carnot efficiency of the heat engine. (b) If a Carnot engine has an ...A quantity of an ideal gas at an initial pressure of 2.00 atm undergoes an adiabatic expansion to atmospheric pressure. What is the ratio of the final temperature to the initial temperature of the gas? If they have the same tension and length, will a thicker or a thinner guitar string sound higher in frequency? Why? A mass–spring system is in SHM in the horizontal direction. If the mass is 0.25 kg, the spring constant is 12 N/m, and the amplitude is 15 cm, (a) What is the maximum speed of the mass, and (b) Where does this occur? ...
Post your question