A) What is the actual work produced in the turbine, per kilogram of entering steam? B) How much work is required in the pump, per kilogram of entering liquid water? C) What is the overall efficiency of the heat engine? D) 1000 kJ/min of work from this heat engine is used to power a refrigerator that operates on the vapor-compression cycle. The refrigerator has a coefficient of performance of 4.2. At what rate is heat removed from the condenser in this refrigeration cycle?
A steady-state heat engine operates on the following cycle:
? A boiler is used to produce superheated steam at P=40 bar and 450 °C.
? The steam enters a turbine, which has an efficiency of 80%, and expands to P=2 bar.
? The turbine effluent enters a condenser and is converted to saturated liquid.
? The liquid enters a pump and is compressed to P=40 bar.
? The compressed liquid is fed to the evaporator.
You might also like to view...
Wherever Rule #1 applies to a planar regular feature of size, a(n) ____________________ flatness deviation requirement exists for the derived median plane of the feature of size.
Fill in the blank(s) with the appropriate word(s).
The deaerator has the following flows in and out except:
a. safety valve (out) b. pump (out) c. chemical additives (in) d. oxygen vent (out) e. water make-up (in) f. steam generating drum (out)
The equipment for applying specialty coatings that provide a high angle of skid for the paperboard and corrugated box industries has a delivered cost of $390,000. If the overall cost factor for the complete system is 3.96, the total plant cost is approximately: (choose one)
(a) $955,500 (b) $1,054,400 (c) $1,154,400 (d) $1,544,400
Technician A says that chassis oscillations can be rhythmic vibrations sourced from the suspension. Technician B says that chassis oscillations can be irregular vibrations sourced from the suspension. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B