- 7.55PH: An underground salt mine, 100 000 m3 in volume, contains air at 290...
- 7.1CGP: If we follow a mass element going through a reversible adiabatic fl...
- 7.2CGP: Which process will make the statement in In-Text Concept Question e...
- 7.3CGP: A reversible process in a steady flow with negligible kinetic and p...
- 7.4CGP: A reversible process in a steady flow of air with negligible kineti...
- 7.5CGP: A reversible steady isobaric flow has 1 kW of heat added with negli...
- 7.6CGP: An air compressor has a significant heat transfer out (review Examp...
- 7.7CGP: Friction in a pipe flow causes a slight pressure decrease and a sli...
- 7.8CGP: To increase the work out of a turbine for given inlet and exit pres...
- 7.9CGP: An irreversible adiabatic flow of liquid water in a pump has a high...
- 7.10CGP: The shaft work in a pump to increase the pressure is small compared...
- 7.11CGP: Liquid water is sprayed into the hot gases before they enter the tu...
- 7.12CGP: A tank contains air at 400 kPa, 300 K, and a valve opens up for flo...
- 7.13HP: A turbine receives steam at 6 MPa, 600° C with an exit pressure of ...
- 7.14HP: A condenser receives R-410a at ?20° C and quality 80%, with the exi...
- 7.15HP: Steam enters a turbine at 3 MPa, 450° C, expands in a reversible ad...
- 7.16HP: The exit nozzle in a jet engine receives air at 1200 K, 150 kPa wit...
- 7.17HP: Do the previous problem using Table A.7.Table A.7Ideal Gas Properti...
- 7.18HP: A reversible adiabatic compressor receives 0.05 kg/s saturated vapo...
- 7.19HP: In a heat pump that uses R-134a as the working fluid, the R-134a en...
- 7.20HP: Nitrogen gas flowing in a pipe at 500 kPa, 200° C, and at a velocit...
- 7.21HP: A reversible isothermal expander (a turbine with heat transfer) has...
- 7.22HP: Solve the previous problem using Table B.3.TABLE B.3Thermodynamic P...
- 7.23HP: A compressor in a commercial refrigerator receives R-410a at ?25° C...
- 7.24HP: A boiler section boils 3 kg/s saturated liquid water at 2000 kPa to...
- 7.25HP: A compressor brings a hydrogen gas flow at 280 K, 100 kPa up to a p...
- 7.26HP: Atmospheric air at ?45° C, 60 kPa enters the front diffuser of a je...
- 7.27HP: A compressor is surrounded by cold R-134a, so it works as an isothe...
- 7.28HP: A flow of 2 kg/s saturated vapor R-410a at 500 kPa is heated at con...
- 7.29HP: A flow of 2 kg/s hot exhaust air at 150° C, 125 kPa supplies heat t...
- 7.30HP: A diffuser is a steady-state device in which a fluid flowing at hig...
- 7.31HP: Air enters a turbine at 800 kPa, 1200K and expands in a reversible ...
- 7.32HP: An expander receives 0.5 kg/s air at 2000 kPa, 300 K with an exit s...
- 7.33HP: A highly cooled compressor brings a hydrogen gas flow at 300 K, 100...
- 7.34HP: A compressor receives air at 290 K, 95 kPa and shaft work of 5.5 kW...
- 7.35HP: A reversible steady-state device receives a flow of 1 kg/s air at 4...
- 7.36HP: A steam turbine in a power plant receives 5 kg/s steam at 3000 kPa,...
- 7.37HP: A reversible adiabatic compression of an air flow from 20° C, 100 k...
- 7.38HP: A small turbine delivers 1.5 MW and is supplied with steam at 700° ...
- 7.39HP: One technique for operating a steam turbine in partload power outpu...
- 7.40HP: An adiabatic air turbine receives 1 kg/s air at 1500 K, 1.6 MPa and...
- 7.41HP: A turbocharger boosts the inlet air pressure to an automobile engin...
- 7.42HP: Two flows of air are both at 200 kPa; one has 3 kg/s at 400 K, and ...
- 7.43HP: A flow of 5 kg/s water at 100 kPa, 20° C should be delivered as ste...
- 7.44HP: A heat-powered portable air compressor consists of three components...
- 7.45HP: Atwo-stage compressor having an intercooler takes in air at 300 K, ...
- 7.46HP: A certain industrial process requires a steady supply of saturated ...
- 7.47HP: A certain industrial process requires a steady 0.75 kg/s supply of ...
- 7.48HP: Consider a steam turbine power plant operating near critical pressu...
- 7.49HP: A 10-m-tall, 2-m2 cross-sectional-area water tank is on a tower, so...
- 7.50HP: Air in a tank is at 300 kPa, 400 K with a volume of 2 m3. A valve o...
- 7.51HP: A 0.5-m3 tank containing carbon dioxide at 300 K, 150 kPa is now fi...
- 7.52HP: A tank contains 1 kg of carbon dioxide at 6 MPa, 60° C, and it is c...
- 7.53HP: Air in a tank is at 300 kPa, 400 K with a volume of 2 m3. A valve o...
- 7.54HP: A supply line is supplied by an insulated compressor that takes in ...
- 7.55HP: An underground salt mine, 100 000 m3 in volume, contains air at 290...
- 7.56HP: R-410a at 120° C, 4 MPa is in an insulated tank, and flow is now al...
- 7.57HP: A river flowing at 0.5 m/s across a 1-m-high and 10-m-wide area has...
- 7.58HP: How much liquid water at 15° C can be pumped from 100 kPa to 300 kP...
- 7.59HP: A large storage tank contains saturated liquid nitrogen at ambient ...
- 7.60HP: Liquid water at 300 kPa, 15° C flows in a garden hose with a small ...
- 7.61HP: A wave comes rolling into the beach at 2 m/s horizontal velocity. N...
- 7.62HP: A small pump takes in water at 20° C, 100 kPa and pumps it to 2.5 M...
- 7.63HP: An irrigation pump takes water from a river at 10° C, 100 kPa and p...
- 7.64HP: A firefighter on a ladder 25 m above ground should be able to spray...
- 7.65HP: Saturated R-410a at?10° C is pumped/compressed to a pressure of 2.0...
- 7.66HP: Liquid water at ambient conditions, 100 kPa, 25° C, enters a pump a...
- 7.67HP: The underwater bulb nose of a container ship has a velocity relativ...
- 7.68HP: A small water pump at ground level has an inlet pipe down into a we...
- 7.69HP: A pump/compressor pumps a substance from 150 kPa, 10° C to 1 MPa in...
- 7.70HP: Atmospheric air at 100 kPa, 17° C blows at 60 km/h toward the side ...
- 7.71HP: A small pump is driven by a 2-kW motor with liquid water at 150 kPa...
- 7.72HP: A speedboat has a small hole in the front of the drive with the pro...
- 7.73HP: You drive on the highway at 120 km/h on a day with 17° C, 100 kPa a...
- 7.74HP: A pipe in a small dam, of 0.5 m diameter, carries liquid water at 1...
- 7.75HP: Air flow at 100 kPa, 290 K, 100 m/s is directed toward a wall. At t...
- 7.76HP: A flow of air at 100 kPa, 300 K enters a device and goes through a ...
- 7.77HP: Solve the previous problem but use the air Tables A.7.Table A.7 Ide...
- 7.78HP: Helium gas enters a steady-flow expander at 800 kPa, 300° C and exi...
- 7.79HP: A flow of 4 kg/s ammonia goes through a device in a polytropic proc...
- 7.80HP: Calculate the air temperature and pressure at the stagnation point ...
- 7.81HP: Expansion in a gas turbine can be approximated with a polytropic pr...
- 7.82HP: Steady Flow ProcessesConsider a steam turbine with inlet 2 MPa, 350...
- 7.83HP: Steady Flow ProcessesA large condenser in a steam power plant dumps...
- 7.84HP: Steady Flow ProcessesR-410a at?5° C, 700 kPa is throttled, so it be...
- 7.85HP: Steady Flow ProcessesAmmonia is throttled from 1.5MPa, 35° Cto a pr...
- 7.86HP: Steady Flow ProcessesA compressor in a commercial refrigerator rece...
- 7.87HP: Steady Flow ProcessesR-134a at 30° C, 800 kPa is throttled in a ste...
- 7.88HP: Steady Flow ProcessesAnalyze the steam turbine described in Problem...
- 7.89HP: Steady Flow ProcessesTwo flowstreams of water, one at 0.6 MPa, satu...
- 7.90HP: Steady Flow ProcessesAgeothermal supply of hotwater at 500 kPa, 150...
- 7.91HP: Steady Flow ProcessesA compressor in a commercial refrigerator rece...
- 7.92HP: Steady Flow ProcessesA steam turbine has an inlet of 2 kg/s water a...
- 7.93HP: Steady Flow ProcessesA factory generates compressed air from ambien...
- 7.94HP: Steady Flow ProcessesA mixing chamber receives 5 kg/min ammonia as ...
- 7.95HP: Steady Flow ProcessesCarbon dioxide at 300 K, 200 kPa is brought th...
- 7.96HP: Steady Flow ProcessesMethane at 1 MPa, 300 K is throttled through a...
- 7.97HP: Steady Flow ProcessesA heat exchanger that follows a compressor rec...
- 7.98HP: Steady Flow ProcessesA dual fluid heat exchanger has 5 kg/s water e...
- 7.99HP: Steady Flow ProcessesTwo flows of air are both at 200 kPa; one has ...
- 7.100HP: Steady Flow ProcessesA condenser in a power plant receives 5 kg/s s...
- 7.101HP: Steady Flow ProcessesA large supply line has a steady flow of R-410...
- 7.102HP: Steady Flow ProcessesA two-stage compressor takes nitrogen in at 20...
- 7.103HP: Steady Flow ProcessesThe intercooler in the previous problem uses c...
- 7.104HP: Steady Flow ProcessesAir at 327° C, 400 kPa with a volume flow of 1...
- 7.105HP: Steady Flow ProcessesA counterflowing heat exchanger has one line w...
- 7.106HP: Steady Flow ProcessesA large supply line has a steady air flow at 5...
- 7.107HP: Steady Flow ProcessesIn a heat-driven refrigerator with ammonia as ...
- 7.108HP: Steady Flow ProcessesRepeat 7.106 for the throttle and the nozzle w...
- 7.109HP: Steady Flow ProcessesCarbon dioxide used as a natural refrigerant f...
- 7.110HP: Steady Flow ProcessesSaturated liquid nitrogen at 600 kPa enters a ...
- 7.111HP: Steady Flow ProcessesA steam turbine in a power plant receives stea...
- 7.112HP: Steady Flow ProcessesOne type of feedwater heater for preheating th...
- 7.113HP: Steady Flow ProcessesA coflowing (same direction) heat exchanger, s...
- 7.114HP: Steady Flow ProcessesA supply of 5 kg/s ammonia at 500 kPa, 20° C i...
- 7.115HP: Transient Flow ProcessesCalculate the specific entropy generated in...
- 7.116HP: Transient Flow ProcessesA 1-m3 rigid tank contains 100 kg R-410a at...
- 7.117HP: Transient Flow ProcessesA 0.2-m3 initially empty container is fille...
- 7.118HP: Transient Flow ProcessesAn initially empty 0.1-m3 cannister is fill...
- 7.119HP: Transient Flow ProcessesA 1-L can of R-134a is at room temperature,...
- 7.120HP: Transient Flow ProcessesAn empty can of 0.002 m3 is filled with R-1...
- 7.121HP: Transient Flow ProcessesA cook filled a pressure cooker with 3 kg w...
- 7.122HP: Transient Flow ProcessesA 10-m-tall, 0.1-m-diameter pipe is filled ...
- 7.123HP: Transient Flow ProcessesA 200-L insulated tank contains nitrogen ga...
- 7.124HP: Transient Flow ProcessesA 200-L insulated tank contains nitrogen ga...
- 7.125HP: Transient Flow ProcessesAir from a line at 12 MPa, 15° C flows into...
- 7.126HP: Transient Flow ProcessesAn insulated piston/cylinder contains 0.1 m...
- 7.127HP: Transient Flow ProcessesA balloon is filled with air from a line at...
- 7.128HP: A steam turbine inlet is at 1200 kPa, 400° C. The exit is at 200 kP...
- 7.129HP: A steam turbine inlet is at 1200 kPa, 400° C. The exit is at 200 kP...
- 7.130HP: A steam turbine inlet is at 1200 kPa, 400° C. The exit is at 200 kP...
- 7.131HP: A compressor in a commercial refrigerator receives R-410A at ?25° C...
- 7.132HP: A steam turbine has an inlet of 2 kg/s water at 1000 kPa, 400° C wi...
- 7.133HP: The exit velocity of a nozzle is 500 m/s. If ?nozzle = 0.88, what i...
- 7.134HP: An emergency drain pump, shown in Fig. P7.134, should be able to pu...
- 7.135HP: Find the isentropic efficiency of the R-134a compressor in Example ...
- 7.136HP: A gas turbine with air flowing in at 1200 kPa, 1200 K has an exit p...
- 7.137HP: A gas turbine with air flowing in at 1200 kPa, 1200 K has an exit p...
- 7.138HP: Repeat 7.46 assuming the steam turbine and the air compressor each ...
- 7.139HP: Liquid water enters a pump at 15° C, 100 kPa and exits at a pressur...
- 7.140HP: Ammonia is brought from saturated vapor at 300 kPa to 1400 kPa, 140...
- 7.141HP: Find the isentropic efficiency of the nozzle in Example 4.4.Example...
- 7.142HP: A centrifugal compressor takes in ambient air at 100 kPa, 17° C and...
- 7.143HP: A refrigerator uses carbon dioxide that is brought from 1MPa,?20° C...
- 7.144HP: The small turbine in 7.33 was ideal. Assume instead that the isentr...
- 7.145HP: Redo 7.41, assuming the compressor and turbine in the turbocharger ...
- 7.146HP: A pump receives water at 100 kPa, 15° C and a power input of 1.5 kW...
- 7.147HP: A turbine receives air at 1500 K, 1000 kPa and expands it to 100 kP...
- 7.148HP: Air enters an insulated turbine at 50° C and exits the turbine at ?...
- 7.149HP: Carbon dioxide enters an adiabatic compressor at 100 kPa, 300 K and...
- 7.150HP: A small air turbine with an isentropic efficiency of 80% should pro...
- 7.151HP: A compressor in an industrial air-conditioner compresses ammonia fr...
- 7.152HP: Repeat 7.48 assuming the turbine and the pump each has an isentropi...
- 7.153HP: Assume that an actual compressor has the same exit pressure and spe...
- 7.154HP: A nozzle in a high-pressure liquid water sprayer has an area of 0.5...
- 7.155HP: Air flows into an insulated nozzle at 1 MPa, 1200 K with 15 m/s and...
- 7.156HP: A nozzle is required to produce a flow of air at 200 m/s at 20° C, ...
- 7.157HP: A water-cooled air compressor takes air in at 20° C, 90 kPa and com...
- 7.158HP: A flow of saturated liquid R-410a at 200 kPa in an evaporator is br...
- 7.159HP: A flow of R-410a at 2000 kPa, 40° C in an isothermal expander is br...
- 7.160HP: A coflowing heat exchanger has one line with 2 kg/s saturated water...
- 7.161HP: Air at 100 kPa, 17° C is compressed to 400 kPa, after which it is e...
- 7.162HP: A vortex tube has an air inlet flow at 20° C, 200 kPa and two exit ...
- 7.163HP: Air enters an insulated turbine at 50° C and exits the turbine at ?...
- 7.164HP: A stream of ammonia enters a steady-flow device at 100 kPa, 50° C a...
- 7.165HP: In a heat-powered refrigerator, a turbine is used to drive the comp...
- 7.166HP: A certain industrial process requires a steady 0.5 kg/s supply of c...
- 7.167HP: Carbon dioxide flows through a device, entering at 300 K, 200 kPa a...
- 7.168HP: A flow of nitrogen, 0.1 kg/s, comes out of a compressor stage at 50...
- 7.169HP: An initially empty spring-loaded piston/cylinder requires 100 kPa t...
- 7.170HP: Consider the scheme shown in Fig. P7.170 for producing fresh water ...
- 7.171HP: A rigid 1.0-m3 tank contains water initially at 120° C, with 50% li...
- 7.172HP: A jet-ejector pump, shown schematically in Fig. P7.172, is a device...
- 7.173HP: A horizontal insulated cylinder has a frictionless piston held agai...
- 7.174HP: Supercharging of an engine is used to increase the inlet air densit...
- 7.175HP: A rigid steel bottle, V = 0.25 m3, contains air at 100 kPa, 300 K. ...
- 7.176HP: A certain industrial process requires a steady 0.5 kg/s of air at 2...
- 7.177EUP: A compressor receives R-134a at 20 F, 30 psia with an exit of 200 p...
- 7.178EUP: A condenser receives R-410a at 0 F and quality 80%, with the exit f...
- 7.179EUP: Steam enters a turbine at 450 lbf/in.2, 900 F, expands in a reversi...
- 7.180EUP: The exit nozzle in a jet engine receives air at 2100 R, 20 psia wit...
- 7.181EUP: Do the previous problem using Table A.7.Table A.7Ideal Gas Properti...
- 7.182EUP: In a heat pump that uses R-134a as the working fluid, the R-134a en...
- 7.183EUP: A compressor in a commercial refrigerator receives R-410a at ?10 F ...
- 7.184EUP: A compressor brings a hydrogen gas flow at 500 R, 1 atm up to a pre...
- 7.185EUP: A flow of 4 lbm/s saturated vapor R-410a at 100 psia is heated at c...
- 7.186EUP: A diffuser is a steady-state, steady-flow device in which a fluid f...
- 7.187EUP: An expander receives 1 lbm/s air at 300 psia, 540 R with an exit st...
- 7.188EUP: One technique for operating a steam turbine in part-load power outp...
- 7.189EUP: An adiabatic air turbine receives 2 lbm/s air at 2700 R, 240 psia a...
- 7.190EUP: A 20 ft3 tank that contains carbon dioxide at 540 R, 20 psia is now...
- 7.191EUP: An underground salt mine, 3.5 × 106 ft3 in volume, contains air at ...
- 7.192EUP: R-410a at 240 F, 600 psia is in an insulated tank, and flow is now ...
- 7.193EUP: A river flowing at 2 ft/s across a 3-ft-high and 30-ft-wide area ha...
- 7.194EUP: How much liquid water at 60 F can be pumped from 14.7 psia to 35 ps...
- 7.195EUP: A wave comes rolling in to the beach at 6 ft/s horizontal velocity....
- 7.196EUP: A small pump takes in water at 70 F, 14.7 lbf/in.2 and pumps it to ...
- 7.197EUP: An irrigation pump takes water from a river at 50 F, 1 atm and pump...
- 7.198EUP: A fireman on a ladder 80 ft above ground should be able to spray wa...
- 7.199EUP: Saturated R-410a at 10 F is pumped/compressed to a pressure of 300 ...
- 7.200EUP: Liquid water at ambient conditions, 14.7 lbf/in.2, 75 F, enters a p...
- 7.201EUP: The underwater bulb nose of a container ship has a velocity relativ...
- 7.202EUP: A speedboat has a small hole in the front of the drive with the pro...
- 7.203EUP: Helium gas enters a steady-flow expander at 120 lbf/in.2, 500 F and...
- 7.204EUP: An expansion in a gas turbine can be approximated with a polytropic...
- 7.205EUP: Analyze the steam turbine described in 4.188E. Is it possible? 4.18...
- 7.206EUP: A large condenser in a steam power plant dumps 15 000 Btu/s by cond...
- 7.207EUP: A compressor in a commercial refrigerator receives R-410a at ?10 F ...
- 7.208EUP: R-134a at 90 F, 125 psia is throttled in a steady flow to a lower p...
- 7.209EUP: Two flowstreams of water, one at 100 lbf/in.2, saturated vapor and ...
- 7.210EUP: A compressor in a commercial refrigerator receives R-410a at ?10 F ...
- 7.211EUP: A steam turbine has an inlet of 4 lbm/s water at 150 psia and 550 F...
- 7.212EUP: A dual fluid heat exchanger has 10 lbm/s water enter at 104 F, 20 p...
- 7.213EUP: A factory generates compressed air from ambient 15 psia, 62 F by co...
- 7.214EUP: A mixing chamber receives 10 lbm/min ammonia as saturated liquid at...
- 7.215EUP: A condenser in a power plant receives 10 lbm/s steam at 130 F, qual...
- 7.216EUP: A large supply line has a steady flow of R-410a at 175 psia, 140 F....
- 7.217EUP: Air at 540 F, 60 lbf/in.2 with a volume flow of 40 ft3/s runs throu...
- 7.218EUP: A large supply line has a steady air flow at 900 R, 2 atm. It is us...
- 7.219EUP: Repeat the previous problem for the throttle and the nozzle when th...
- 7.220EUP: A supply of 10 lbm/s ammonia at 80 lbf/in.2, 80 F is needed. Two so...
- 7.221EUP: An initially empty 5-ft3 tank is filled with air from 70 F, 15 psia...
- 7.222EUP: An empty cannister of volume 0.05 ft3 is filled with R-134a from a ...
- 7.223EUP: A can of volume 8 ft3 is empty and is filled with R-410a from a lin...
- 7.224EUP: Air from a line at 1800 lbf/in.2, 60 F flows into a 20-ft3 rigid ta...
- 7.225EUP: A steam turbine inlet is at 200 psia, 800 F. The exit is at 40 psia...
- 7.226EUP: A steam turbine inlet is at 200 psia, 800 F. The exit is at 40 psia...
- 7.227EUP: A steam turbine inlet is at 200 psia, 800 F. The exit is at 40 psia...
- 7.228EUP: The exit velocity of a nozzle is 1500 ft/s. If ?nozzle = 0.88, what...
- 7.229EUP: A small air turbine with an isentropic efficiency of 80% should pro...
- 7.230EUP: Redo 7.198 if the water pump has an isentropic efficiency of 85% (h...
- 7.231EUP: Air enters an insulated compressor at ambient conditions, 14.7 lbf/...
- 7.232EUP: A nozzle is required to produce a steady stream of R-134a at 790 ft...
- 7.233EUP: A water-cooled air compressor takes air in at 70 F, 14 lbf/in.2 and...
- 7.234EUP: Repeat 7.199E for a pump/compressor isentropic efficiency of 70%. 7...
- 7.235EUP: Air at 1 atm, 60 F is compressed to 4 atm, after which it is expand...
- 7.236EUP: A rigid 35-ft3 tank contains water initially at 250 F, with 50% liq...

# Solutions for Chapter 7: Fundamentals of Thermodynamcs 8th Edition

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ISBN: 9781118131992

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