A steam engine has 15% brake thermal efficiency and consumes 800 kg/hr steam. The enthalpy of steam at the entrance of engine are 2800 and exit of the condenser 470 KJ/kg respectively. Determine the brake power of the engine in KW.

A steam engine has 15% brake thermal efficiency and consumes 800 kg/hr steam. The enthalpy of steam at the entrance of engine are 2800 and exit of the condenser 470 KJ/kg respectively. Determine the brake power of the engine in KW.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 10RQ: The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.

See similar textbooks

Related questions

Q: solve a,b and c asap. A steam turbine with rated capacity of 56.4 MW operates with steam at inlet…

Q: 2. A single acting air compressor with a clearance of 6% takes in air at atmospheric pressure and…

Q: The actual power output of a wind turbine with an efficiency of 59% is 1250kW. The predicted output…

Q: determine the thermal efficiency of the cycle, in %.

Q: A single-acting, single-cylinder air compressor is rated at 4.25 m3/min of air. The suction…

Q: A-Classify the hydro-power stations according to the height of the water, then calculate the height…

Q: What is Coefficient of Performance (COP)? Also differentiate between COP and Efficiency?

A: Coefficient of Performance is ratio of desired effect to the input work. It is also called as…

Q: 14.8 A reciprocating air compressor with a clearance of 6% draws in 4.25 m/nin of at suction…

Q: Catalogue data for R-134A compressor with a displacement of 75 L/s show the capacity to be 8 tons…

A: Refrigerant=R134aCompressor displacement=V˙d=75 L/s=0.075 m3/sRefrigerating capacity, Q˙e=8 tons…

Q: 2] An adiabatic feed pump in a steam cycle delivers water to the steam generator at a temperature of…

A: (a) Write the formula for discharge of the pump. V˙=m˙ρ Here, V˙ is the discharge of the pump, m˙ is…

Q: Air with a pressure of 0.1 MPa and a temperature of 25oC with a flow rate of 5.29 kg/minute enters a…

Q: Q4) A refrigeration system using refrigerant 22 is to have a refrigerating capacity of 80 kW. The…

Q: 2.15). An auxiliary gas turbine uses a single-shaft configuration with air bled from the compressor…

Q: A Rankine turbo-generator unit receives 27,800 kg/hr of steam at 1.2 MPa and superheats by 122…

A: Given data Mass flow rate = 27800 kg/hr = 7.7222 kg/s Steam enters the turbine at 1.2 MPa and 122° C…

Q: A diesel engine in a power plant with efficiency of 36%ois running at 850 rpm and developed a torque…

Q: the limitation(s) of gas turbines.

A: Given: Gas turbine To write: The limitations of gas turbine

Q: Answer this ASAP,thx In a gas turbine, air enters the compressor at a temperature of 290 K and a…

A: (a) To find: The thermal efficiency. Given: The inlet pressure and temperature at compressor is…

Q: Steam is supplied to a fully loaded 100-hp turbine at 175 psia with u =1,100.0 Btu/Ibm: Vy=2.00…

A: u1=1100 Btu/lbm,Vy=2 ft3/lbm,V1=400 fpsu2=265 ft3/lbm,v2=1140 fps,Q=-11 Btu/lbm, Applying steady…

Q: Pls. Answer thank you! Water at 55°C is cooled in a cooling tower which has an efficiency of 65%.…

Q: The reheat process is O decreases the turbine work increases the pump efficiency O decreases the…

A: Reheating Process: In the Rankine cycle when superheated steam two times expanded in two turbines,…

Q: 2. A ix-cylinder, four-stroke cycle, marine oil engine has cylinder dia méters of 610 mm and a…

A: Note: As per our guidelines we are supposed to answer only the first 3 sub-parts. Kindly repost…

Q: Steam is throttled to a 0.1 MPa with 20 degrees of superheat. (a) What is the quality of the…

A: Let the steam is throttled from state 1 to state 2. State 1 conditions are unknown State 2…

Q: A large commercial air-conditioning unit processess 5 kg/s of atmospheric air. The air enters at a…

A: GIVEN:m'=5kg/sP2=100kPaDBT2=20'CWBT2=10'CFrom psychometric chart,from THERMODYNAMICS DATABOOK, BY…

Q: 3. A steam power plan. A 1.5 kg of water is delivered to the boiler per second. Water entering the…

A: Applying steady flow energy equation considering boiler and turbine as single unit -…

Q: In a steam turbine, saturated steam enters the turbine at a pressure of 16 MPa and a pressure in the…

Q: A 3-stage compressor delivers 0.23 kg/s of air. The suction pressure and temperature are 100 kPaa…

A: Calculated compressor work in kW.

Q: The low efficiency of a system means an extra heat energy was added Ture O False O

Q: Question 2 A water pump driven by an 800 W electric motor is used to pump water from the ground…

A: Given: The pump power, P = 800 kW The flow rate, Q = 20000 ltr/hr The delivery head, h = 10 m The…

Q: generator has a combined steam rate of 5.35 kg/kwh at its rated output of 20,000 kw. The steam is at…

Q: Steam enters the turbine at the rate of 2.5 kg/s with enthalpy of 3200 kj/kg and exhaust enthalpy of…

Q: Question 2 A water pump driven by an 800 W electric motor is used to pump water from the ground…

A: given; power(P)=800wdischarge rate(Q)=20000L/hr =200003600*10-3 m3/s…

Q: < Work output per on energy supplied equal * of None of the these O Adiabatic Carnot engine O…

A: The performance of any machine is measured by calculating the energy supplied to it and by…

Q: 1. A Carnot engine operates between 400K and 1,200K, using 0.4 kg of air and running at 500 rpm. The…

Q: scuss the following scenarios: a) Consider an air compressor that operate under the same conditions…

A: a. Volume flow rate at inlet =VIAiAt outlet =VeAegenerally volume flow rate at outlet is much less…

Q: • The efforts to improve the gas turbine cycle efficiency are concentrated in three areas, one of…

A: Option d is correct.

Q: Consider the cycle shown below.Deteremine the work of the turbines in kW given that the turbines…

A: Given details: P5=2 MPaT5=700°CP6=800 kPam1=20 kg/secm2=18kg/sec 5-6: Isentropic expansion 6-7:…

Q: A diesel engine in a power plant with efficiency of 36% is running at 850 rpm and developed a torque…

A: Calorific value of diesel fuel,CV=44.3MJ/kgTorque developed by…

Q: A steam turbine generator unit consumes 27 MTPH of steam at 1.2 MPa and 325oC where its condensate…

A: INTRODUCTION : In steam power plant, the unorganized form of energy like coal, oil, natural gas get…

Q: Can you also show the plot on the chart provided? The mass flow rate of the refrigerant in a…

A: Given DataTE=-20°CTc=50°Cm˙=0.016kg/s Using the above table and using also steam table for taking…

Q: The relative velocity of steam at blade inlet is 380 m/s and the losses in blade is 15%. The…

A: Given data: The velocity of steam at inlet is v=380 m/s The loss in velocity is…

Q: Can I ask for the schematic diagram of this? and also the Ts diagram and Ph diagram. Thank You!…

A: The following four processes take place in a simple refrigeration cycle 1-2: compression 2-3:…

Q: The efficiency of the heat engine is 36 %. The COP of heat pump is.

A: Cop of heat pump is equal to inverse of efficiency of heat engine. So ans is 2.78

Q: Q4. Fluid enters a condenser at the rate of 40 kg/min with a specific enthalpy of 2000 kJ/kg, leaves…

A: Heat lost by fluid,∆QL=m˙2000-200∆QL=40×2000-200∆QL=72000 kJ/min

Q: Q/ Three chemical engineers (Mohammed, Ahmed and Ali) discussed about the effect of the pressure…

A: steam power plants work on the Rankine cycle. the efficiency of the cycle depends on the work of the…

Q: If the efficiencies of a power plant, turbine and generator (in the power plant) are 0.36, 0.5 and…

Q: A Carnot engine has an efficiency of 23.4% when the hot reservoir temperature is 583°C. If we want…

Q: 2. A 10 MW steam turbine generator power plant has a full- load steam rate of 12 kg/kw-hr. Assume…

Question

Pls answer thank you!

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

Q2: Use dinensional analysis to derive as epresion for the power develaped by an engine in terms of the torpue T and roarive sped u.
Pls. Answer this..? A steam engine has 10% brake thermal efficiency and consumes 750 kg/hr steam. The enthalpy of steam at the entrance ang exit of the engine and condenser are 2800 and 450 kj/kg repectively. Determine the brake power of the engine in kw.
2-a Explain the effect of pressure ratio on the net work and the efficiency of a steam power суcle.
A cylindrical tank 3 m long and 2 m diameter is used for oil storage. How many days can the tank supply the engine having 27oAPI with fuel consumption of 65 kg/hr?
The relative efficiency of a engine will be equal to it air standard efficiency & brake thermal efficiency of engine are 53.4% & 24,4% respectively.
Find the work in kWh to lift 1 ton at a height of 55ft for 10 sec. the motor gear efficiency is 51%
1. The mean effective pressure of an engine running at 300 rpm is 500 kPa. What is the indicatedpower if the engine has bore of 250 mm x 450 mm. Select the correct answer below: A. 110.5 kW B. 150 kW C. 200 kW D. 182. 2 kW 2. In a certain process, entering is 1500 KJ/kg and 150 m/s. If the energy leaving is 12000 Kj/kg/ Determine the velocity at exit. Select the correct answer below: A.) 145 m/s B. 1020 m/s C. 789 m/s D. 978 m/s
Q2 An engine using fuel of calorific value 42000 kj/kg has abrake thermal efficiency of 30% Find its brake specific fuel consumption in gram b.p-hr Answer C 285.71 gm/Kw-hr]
1. An engine from a quarry vehicle used in the Build a Beach program of DEMR has a power requirement of 560 kW. Per hour of its operation, it ejects 234 MJ into its surroundings at 50 °C. If it behaves like a Carnot engine, answer the questions below. A. How much work (MJ) is done by the engine per hour of operation? B. What is the efficiency (%) of the engine?C. What is the temperature (°C) of the hot reservoir? 2. Determine the entropy change (kJ/K) associated to the conversion of 10 kg of ice at -11 °C to steam at 121 °C. 3. Anna and Beth are using another rare metal, the nth metal (c = 0.600 J/g-℃), to build the 5-kg cuirass of their design. Initially, the metal is at 2250 K. It is then submerged to 10 kg of water at 15 °C. If the remaining liquid water after submerging the metal is 8.5 kg, solve for the net entropy change (kJ/K) of the system.
Find the power which a 2.5 MW natural gas engine can develop at an altitude of 1981.2 meters taking into consideration the pressure and temperature change.
5. An engine trom a quary vehicle used in the Buid a Beach program of DEMR has a power requirement of 560 kw. Per hour of its operation. it ejects 234 MJ into its suroundings at 50 °C. If it behaves like a Carnot engine, answer the questions below. a. How much work (MJ) s done by the engine per hour? b. What is the efficiency (%) of the engine? c. What is the temperature ("C) of the hot reservoir?
1.) A hand pump is used to inflate a bicycle tire to a gauge pressure of 70 psi. a) How much work must be done if each stroke of the pump is an adiabatic process and what is the final temperature of the gas? b) We inflate the tire in two steps: (i) an isobaric compression and (ii) an isochoric increase in temperature. Calculate the work done by gas/"us" and/or heat added/removed during the two steps! Is this a viable alternative to the adiabtic compression Explain! Atmospheric pressure is 1 atm, the air temperature is initially 25° C, and the volume of the air in the tire remains constant. Useful values: A bicycle tire is 26 in diameter and has a cross-sectional area of 2 in² [1 in = 2.54 cm]. 1 lb corresponds to a mass of 0.445 kg. c) For Take-Home only Solve the questions in a) and b) in terms of the initial pressure P₁ = P*, the final volume Vf = V* and the pressure ratio K = Pf/P*!