Can anyone help me I’m stuck and idk how to do it Question 4 - Section B:A high pressure, high temperature (HPHT) hot water system has a total contained water volume of5.2 m³. This sealed hot water system receives cold water at 20 °C and heats the cold water to itsworking temperature of 145 °C. The initial fill pressure of the system is 1.8 bar (gauge) and theworking pressure of this system is 7.0 bar (gauge). The specific volumes of saturated water at20 °C and at 145 °C are 0.10018×10-2 m³/kg and 0.1085x10°² m³/kg, respectively. Average densityof water is 1000 kg/m³, atmospheric pressure is 1.013 bar, polytropic index of nitrogencompression is 1.242 and the specific gas constant, R for nitrogen is 296 J/kg.K.Determine:(iv) the expansion volume of water due to the temperature rise.(v) the volume of the expansion vessel required.(vi) the mass of nitrogen gas charge needed to obtain the expected fill pressure of 1.6 bar (gauge).

Answer: (iv) The Expansion Volume of Water Due to the Temperature Rise We need to calculate the…

Answered: Question 4 - Section B: A high…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Q.1. A refrigeration process with interstage cooling uses refrigerant HFC-134a, and the outlet of the condenser is to be saturated liquid at 40°C. Refer to the following figure for stream numbers in your solution. The pressure of the flash chamber and the intermediate pressure between compressors is to be 290 kPa. The evaporator is to operate at -20°C and the outlet is to be saturated vapor. The flowrate of stream 1 is 23 kg/h. The flash chamber may be considered adiabatic. The compressors may be considered to be 80% efficient. a) What is the power input required to the first compressor? b) What are the flowrates of streams 6 and 7? What is the enthalpy of stream 4? Hot Side 6 5 Condenser 2nd Stage Compressor Throttle Valve 7 Flash Chamber Vapor Phase Only 1st Stage Compressor 8 Throttle Valve Evaporator 1 2 Cold Side
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Q1: Steum at a pressure of 28kpa is passed into a condenser and it leawes as condensate at a temperature of sac Cooling water circulates through the condenser at the rate of 45 kg/min - It enters at 152 and Veaves at 3oc If the Steam flow rate is 1.25 eg/min, determinė the drynes fraction of Steam as it enters the condenser.
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5.19 : The temperature in a surface condenser is 37.651°C and a vacuum is 700 mm of Hg. Barometer reads 755.2 mm of Hq. Correct the vacuum to a standard barometer of 760 mm of Hg and hence determine (1) The partial pressure of steam and air. (2) Weight of air associated with 1 kg of steam.

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