A steam throttling valve with inlet conditions of 2MPa and 400C is connected to the inlet of the turbine. The turbine has 200kW power output and heat abstracted of 100kW. If the mass flow rate is 1kg/s and the exit temperature of steam is 300C, find the exit turbine pressure.

A steam throttling valve with inlet conditions of 2MPa and 400C is connected to the inlet of the turbine. The turbine has 200kW power output and heat abstracted of 100kW. If the mass flow rate is 1kg/s and the exit temperature of steam is 300C, find the exit turbine pressure.

Name: Solve the following problems and sketch the schematic diagram describi
Uploaded: 2024-03-20T06:56:55.000Z
Channel: Bartleby
Description: Solve the following problems and sketch the schematic diagram describing the system. Show pertinent and complete solutions. (steam table)A steam throttling valve with inlet conditions of 2MPa and 400C is connected to the inlet of the turbine. The tur

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

Chapter33: Hydronic Heat

Section: Chapter Questions

Problem 9RQ: The device that relieves the pressure in a boiler when it is above the design working pressure is...

See similar textbooks

Similar questions

The condensing pressure for a Rankine engine is 0.001325 MPavac. Calculate the following for steam flow rate = 1 kg/sec of steam when the steam at the beginning of expansion is at 119.6 deg SH and 4.0 Mpaa. Draw the TS and equipment diagrams for the ideal and actual case and find for the following for the ideal case: Ideal turbine work (KW). Ans.____________________________ Heat rejected at condenser (KJ/sec). Ans.____________________________ Mass of cooling water in kg/sec if cp H2O = 4.18 KJ/kg-K, and inlet temp of water to condenser = 20 deg C, outlet temp is 35 deg C. Ans.____________________________ Pump work in KW. Ans.___________________________
The condensing pressure for a Rankine engine is 0.001325 MPavac. Calculate the following for steam flow rate = 16.3846 kg/sec of steam when the steam at the beginning of expansion is at 119.6 deg SH and 4.0 Mpaa. Draw the TS and equipment diagrams for the ideal and actual case and find for the following for the ideal case: Combined work (KW) . Ans.____________________________ Combined steam rate in kg/KW-hr. Ans.___________________________ Actual heat rate( KJ/KW-hr). Ans.____________________________
(a) Calculate the required size of a receiver that must supply air to a pneumatic system consuming 0.85 m3/min for 10 min between 828 kPa and 690 kPa before the compressor resumes operation. (b) What size is required if the compressor is running and delivering air at 0.17 m3/min? Please solve using the equation Thank you
Provide a complete given and computation. Include all the decimals. Steam engine with incomplete expansion receives saturated steam at 1.04 Mpa, expands it to 0.105 Mpa where release occurs. Exhaust is to a condenser at 40C. The actual engine uses 6070 kg/h of steam; it has a brake engine efficiency of 60% and a mechanical efficiency of 85%. The electric generator which it drives has an efficiency of 92%. (a) For the ideal engine, find the thermal efficiency and the mep. For the actual engine, determine (b) the brake work in kW and the brake thermal efficiency, (c) the indicated work in kW, indicated thermal efficiency and indicated steam rate, (d) the combined thermal efficiency and the combined steam rate.
n a power plant, the steam from the boiler reaches the turbine at a temperature of 700 °C. The spent steam leaves the turbine at 100 °C. Calculate the maximum efficiency of the turbine and compare it to the typical value.
A simple steam power plant operates on 8 kg/s of steam as shown below. Neglecting losses in the various components. A. What is the turbine power output in kW?B. What is the pump power requirement in kW?C. If the pump is 70% efficient what is the power output in kW.D. What is the heat transfer rate necessary in the boiler?E. What is the thermal efficiency of the cycle? Use the equation below.η = (turbine power output – pump power requirement) / (boiler heat transfer rate).
The condensing pressure for a Rankine engine is 0.001325 MPavac. Calculate the following for steam flow rate = 1 + (200/13) kg/sec of steam when the steam at the beginning of expansion is at 119.6 deg SH and 4.0 Mpaa. Draw the TS and equipment diagrams for the ideal and actual case and find for the following for the ideal case: PV and TS diagrams of the cycle showing ideal and actual process lines Heat rejected at condenser (KJ/sec). Ans.____________________________ Mass of cooling water in kg/sec if cp H2O = 4.18 KJ/kg-K, and inlet temp of water to condenser = 20 deg C, outlet temp is 35 deg C. Ans.____________________________ Rankine engine efficiency (%). Ans.____________________________ Cycle thermal efficiency ( %). Ans.____________________________
The condensing pressure for a Rankine engine is 0.001325 MPavac. Calculate the following for steam flow rate = 16.3846 kg/sec of steam when the steam at the beginning of expansion is at 119.6 deg SH and 4.0 Mpaa. Draw the TS and equipment diagrams for the ideal and actual case and find for the following for the ideal case: PV and TS diagrams of the cycle showing ideal and actual process lines Heat rejected at condenser (KJ/sec). Ans.____________________________ Mass of cooling water in kg/sec if cp H2O = 4.18 KJ/kg-K, and inlet temp of water to condenser = 20 deg C, outlet temp is 35 deg C. Ans.___________________________
Compute the energy requirements to convert 50°C water to superheated steam at 170°C when the pressure is 210.82 kPa.
The gas turbine engine is a single-spool engine; it will be modified, and a free power turbine will be added and connected to an electric generator. The picture shows a schematic diagram of the modification. Comment on the sources of losses in this ideal gas turbine cycle and how this losses could be minimised.
A gas turbine that operates on Brayton cycle provides a furnace with hot pressurized gas through its exhaust at 220kPa. The turbine produces only enough power as required by the compressor. The compressor has inlet conditions of 110kPa and 300K. The inlet condition of the turbine is 850oC. Determine the pressure ratio of the compressor. Draw the schematic diagram.
An air standard gas turbine engine operates on an overall pressure ratio of 4 and between the temperature limits of 70 F and 1600 F. The efficiencies of compressor and turbine are 0.82 and 0.92, respectively. To modify, a regenerator of effectiveness 0.65 is added and two stage of compressor with intercooler is inserted and two-stage turbine with reheater is inserted. (a) Assuming constant specific heats, evaluate the compressor work (b) calculate the turbine work (c) calculate the thermal efficiencies Show complete solution on a paper.