In adiabatic evaporative cooling, heat transfer between chamber and surroundings is

Related MCQs

• A power cycle using steam as working fluid consist of i) constant pressure heat addition ii)adiabatic expansion iii) constant pressure heat rejection & iv) adiabatic compression. The cycle is
• The cooling tower uses the phenomenon of evaporative cooling to cool warm water above the dbt of air.
• A simple Rankine cycle produces 40 MW of power, 50 MW of process heat and rejects 60 MW of heat to the surroundings. What is the utilization factor of this co generation cycle neglecting the pump work?
• A heat engine is supplied with 250 kJ/s of heat at a constant fixed temperature of 227°C. The heat is rejected at 27°C. The cycle is reversible, if the amount of heat rejected is
• One reversible heat engine operates between 1600 K & T₂ K & another reversible heat engine operates between T₂ K & 400 K. If both the engines have the temperature T₂ must be equal to
• An inventor claims that a new heat cycle will develop 0.4 kW for a heat addition of 32.5 kJ/mm. The temperature of heat source is 1990 K & that of sink is 850K. Is his claim true?
• At absolute zero, an isotherm and an adiabatic are identical.
• In a cyclic heat engine operating between a source temperature of 600°C & a sink temperature of 20°C, the least rate of heat rejection per kW net output of the engine is
• The efficiency of all reversible heat engines operating between the same heat reservoirs is
• For any reversible process, the change in entropy of the system & surroundings is