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A boiler is used to generate steam. Water enters the boiler, saturated at 14°C at 362 kg/hr. Superheated steam exits at 5 bar. The energy input of the boiler is 333 KW. Determine the outlet temperature of the steam, in °C. Neglect kinetic and potential energy changes.

A boiler is used to generate steam. Water enters the boiler, saturated at 14°C at 362 kg/hr. Superheated steam exits at 5 bar. The energy input of the boiler is 333 KW. Determine the outlet temperature of the steam, in °C. Neglect kinetic and potential energy changes.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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A boiler is used to generate steam. Water enters the boiler, saturated at 14°C at 362 kg/hr. Superheated steam exits at 5 bar. The energy input of the boiler is 333 KW. Determine the outlet temperature of the steam, in °C. Neglect kinetic and potential energy changes. Your Answer: Answer Hide hint for Question 1 • It is an open system. • There is no work done to/from the boiler. ↑ T • The interpolation formula isy = y₁ + (x − x₁) y2 yı X2 X1 • Take care of putting the answer in the required units.
Transcribed Image Text:A boiler is used to generate steam. Water enters the boiler, saturated at 14°C at 362 kg/hr. Superheated steam exits at 5 bar. The energy input of the boiler is 333 KW. Determine the outlet temperature of the steam, in °C. Neglect kinetic and potential energy changes. Your Answer: Answer Hide hint for Question 1 • It is an open system. • There is no work done to/from the boiler. ↑ T • The interpolation formula isy = y₁ + (x − x₁) y2 yı X2 X1 • Take care of putting the answer in the required units.
Table B.5 Properties of Saturated Steam: Temperature Table" V(m³/kg) Ú (kJ/kg) T(°C) P(bar) 0.01 0.00611 0.001000 206.2 0.00705 0.001000 179.9 2 4 0.00813 0.001000 157.3 6 0.001000 137.8 0.00935 8 0.01072 0.001000 121.0 0.01227 0.001000 106.4 0.01401 0.001000 93.8 0.01597 0.001001 82.9 0.01817 0.001001 73.4 0.02062 0.001001 65.1 0.001002 57.8 0.001002 51.5 0.001003 45.9 0.001003 43.4 0.001003 41.0 0.001004 36.7 10 12 14 16 1227EH SEK 18 20 24 25 26 28 30 0.0424 32 0.0475 34 0.0532 36 0.0594 38 0.0662 40 42 44 46 48 0.0234 0.0264 0.0298 0.0317 0.0336 0.0378 60 0.1992 62 0.2184 64 0.2391 66 0.2615 0.2856 68 Water Steam 50 0.1234 0.001012 52 0.1361 0.001013 54 0.1500 0.001014 56 0.1651 0.001015 58 0.1815 0.001016 0.001017 0.001018 0.001019 0.001020 0.001022 0.001004 32.9 0.001005 29.6 0.001006 26.6 0.001006 24.0 0.001007 21.6 Water Ĥ(kJ/kg) Steam Water Evaporation Steam 2501.6 2501.6 2496.8 2505.2 2492.1 2508.9 2487.4 2512.6 2482.6 2516.2 zero 2375.6 +0.0 2378.3 8.4 8.4 16.8 2381.1 16.8 25.2 2383.8 25.2 33.6 2386.6 33.6 42.0 2389.3 42.0 50.4 2392.1 50.4 58.8 2394.8 58.8 67.1 2397.6 67.1 75.5 2400.3 75.5 83.9 2403.0 83.9 92.2 2405.8 92.2 100.6 2408.5 100.6 104.8 2409.9 104.8 108.9 2411.2 108.9 117.3 2414.0 117.3 2430.2 167.5 0.0820 0.001009 2432.9 175.8 0.0738 0.001008 19.55 167.4 17.69 175.8 0.001009 16.04 184.2 2435.6 184.2 14.56 192.5 13.23 200.9 0.0910 0.1009 0.001010 2438.3 192.5 0.1116 0.001011 2440.9 200.9 125.7 2416.7 125.7 134.0 2419.4 134.0 142.4 2422.1 142.4 150.7 2424.8 150.7 159.1 2427.5 159.1 12.05 10.98 10.02 9.158 8.380 242.8 2454 209.2 2443.6 209.3 217.7 2446 217.7 226.0 2449 226.0 234.4 2451 234.4 242.8 7.678 251.1 2456 251.1 7.043 259.5 2459 259.5 6.468 267.9 2461 267.9 5.947 276.2 2464 276.2 5.475 284.6 2467 284.6 2477.9 2473.2 2468.5 2463.8 2459.0 2454.3 2449.6 2444.9 2442.5 2440.2 2435.4 2430.7 2425.9 2421.2 2416.4 2411.7 2406.9 2402.1 2397.3 2392.5 2387.7 2382.9 2377 2373 2368 2363 2358 2353 2348 2343 2338 2519.9 2523.6 2527.2 2530.9 2534.5 2538.2 2541.8 2545.5 2547.3 2549.1 2552.7 2556.4 2560.0 2563.6 2567.2 2570.8 2574.4 2577.9 2581.5 2585.1 2588.6 2592.2 2595 2599 2602 2606 2609 2613 2616 2619 2623
Transcribed Image Text:Table B.5 Properties of Saturated Steam: Temperature Table" V(m³/kg) Ú (kJ/kg) T(°C) P(bar) 0.01 0.00611 0.001000 206.2 0.00705 0.001000 179.9 2 4 0.00813 0.001000 157.3 6 0.001000 137.8 0.00935 8 0.01072 0.001000 121.0 0.01227 0.001000 106.4 0.01401 0.001000 93.8 0.01597 0.001001 82.9 0.01817 0.001001 73.4 0.02062 0.001001 65.1 0.001002 57.8 0.001002 51.5 0.001003 45.9 0.001003 43.4 0.001003 41.0 0.001004 36.7 10 12 14 16 1227EH SEK 18 20 24 25 26 28 30 0.0424 32 0.0475 34 0.0532 36 0.0594 38 0.0662 40 42 44 46 48 0.0234 0.0264 0.0298 0.0317 0.0336 0.0378 60 0.1992 62 0.2184 64 0.2391 66 0.2615 0.2856 68 Water Steam 50 0.1234 0.001012 52 0.1361 0.001013 54 0.1500 0.001014 56 0.1651 0.001015 58 0.1815 0.001016 0.001017 0.001018 0.001019 0.001020 0.001022 0.001004 32.9 0.001005 29.6 0.001006 26.6 0.001006 24.0 0.001007 21.6 Water Ĥ(kJ/kg) Steam Water Evaporation Steam 2501.6 2501.6 2496.8 2505.2 2492.1 2508.9 2487.4 2512.6 2482.6 2516.2 zero 2375.6 +0.0 2378.3 8.4 8.4 16.8 2381.1 16.8 25.2 2383.8 25.2 33.6 2386.6 33.6 42.0 2389.3 42.0 50.4 2392.1 50.4 58.8 2394.8 58.8 67.1 2397.6 67.1 75.5 2400.3 75.5 83.9 2403.0 83.9 92.2 2405.8 92.2 100.6 2408.5 100.6 104.8 2409.9 104.8 108.9 2411.2 108.9 117.3 2414.0 117.3 2430.2 167.5 0.0820 0.001009 2432.9 175.8 0.0738 0.001008 19.55 167.4 17.69 175.8 0.001009 16.04 184.2 2435.6 184.2 14.56 192.5 13.23 200.9 0.0910 0.1009 0.001010 2438.3 192.5 0.1116 0.001011 2440.9 200.9 125.7 2416.7 125.7 134.0 2419.4 134.0 142.4 2422.1 142.4 150.7 2424.8 150.7 159.1 2427.5 159.1 12.05 10.98 10.02 9.158 8.380 242.8 2454 209.2 2443.6 209.3 217.7 2446 217.7 226.0 2449 226.0 234.4 2451 234.4 242.8 7.678 251.1 2456 251.1 7.043 259.5 2459 259.5 6.468 267.9 2461 267.9 5.947 276.2 2464 276.2 5.475 284.6 2467 284.6 2477.9 2473.2 2468.5 2463.8 2459.0 2454.3 2449.6 2444.9 2442.5 2440.2 2435.4 2430.7 2425.9 2421.2 2416.4 2411.7 2406.9 2402.1 2397.3 2392.5 2387.7 2382.9 2377 2373 2368 2363 2358 2353 2348 2343 2338 2519.9 2523.6 2527.2 2530.9 2534.5 2538.2 2541.8 2545.5 2547.3 2549.1 2552.7 2556.4 2560.0 2563.6 2567.2 2570.8 2574.4 2577.9 2581.5 2585.1 2588.6 2592.2 2595 2599 2602 2606 2609 2613 2616 2619 2623
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