In a steam thermal plant, it operates with a condenser outlet temperature of 180 ° F, and a boiler outlet temperature of 1000 ° F. If the pressure at the pump outlet is 300 psia. If the efficiencies of the turbine and pump are 85%. Determine: a.) The real work of the turbine, in Btu / Ibm. b.) The actual work of the pump, in Btu / Ibm. c.) The thermal efficiency of the real cycle

In a steam thermal plant, it operates with a condenser outlet temperature of 180 ° F, and a boiler outlet temperature of 1000 ° F. If the pressure at the pump outlet is 300 psia. If the efficiencies of the turbine and pump are 85%. Determine: a.) The real work of the turbine, in Btu / Ibm. b.) The actual work of the pump, in Btu / Ibm. c.) The thermal efficiency of the real cycle

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.46P

See similar textbooks

Similar questions

multiple choice question A system executes a power cycle while receiving 1000 Btu by heat transfer at a temperature of 900°R and discharging 700 Btu by heat transfer at a temperature of 540°R If σ cycle has a negative value, the cycle is: a. impossible b. irreversible c. internally reversible
Write the full energy balance equation for an open system with 1 inlet and 3 exit and operating in steady state?
an ammonia refrigeration cycle operates at 616 kpa suction pressure and 1737 kpa condenser pressure, compressor clearance of 5%, refrigeration capacity of 120 kw, compressor efficiency of 80%, mechanical efficiency of 75% and actual volumetric efficiency of 70. determine (a) actual work (b) ideal cop (c) mass flow rate of ammonia (d) indicated work (e) brake work (f) volumeteric
An ammonia refrigerating plant following the theoretical single stage cycle operates with a condensing temperature of 0 F. The system produces 15 tons of refrigeration. Determine a) the coefficient of performance, b) refrigerating efficiency, c) horsepower per ton of refrigeration, d) rate of refrigerant flow in lb per min, e) theoretical horsepower input to compressor, and f) theoretical piston displacement of compressor in cu ft per min.
In your own words, define efficiency as it applies to a device designed to perform an energy transformation.
Integrated Concepts - (a) Suppose you start a workout on a Stairmaster, producing power at the same rate as climbing 116 stairs per minute. Assuming your mass is 76.0 kg and your efficiency is 20.0%, how long will it take for your body temperature to rise 1.00C if all other forms of heat transfer in and out of your body are balanced? (b) Is this consistent with your experience in getting warm while exercising?
Apply the concepts of energy conversion and conservation in a detailed explanation ofthe reasons why a motor and generator cannot form a perpetual motion machine.
3)A)What is radiation in Heat Transfer ? B)Does the radiation affect the lifetime of the turbine? C)How does the radiation affect the lifetime of the turbine?
1. A refrigerating system operates on the reversed Carnot Cycle. The higher temperature of the refrigerant in the system is 120°F and the lower is 10°F. The capacity is 20 tons. Neglect losses. Determine the network in Btu/min.
The net work done during a cycle is the difference between the work done by the system and the work done on the system.
Question 1 A Carnot heat pump is to be used to heat a house and maintain it at 25°C in winter. On a day when the average outdoor temperature remains at about 2°C, the house is estimatedto lose heat at a rate of 55 000 kJ/h. If the heat pump consumes 4.8 kW of power while operating, determine:The COP, heat loss for the day, required work input, how long the heat pump ran on that dayThe total heating costs, assuming an average price of R 2.35/kWh for electricity, andThe heating cost for the same day if resistance heating is used instead of a heat pump
Find Net work using Q values, Net work using summation of work, Thermal efficiency using temperature values