Vapor Power System
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Transcript of Vapor Power System
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Vapor Power System
Sistem Pembangkit Tenaga Uap
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Komponen Utama
sim
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Model thermodinamika
• Siklus uap pembangkit tenaga uap bekerja berdasarkan siklus ideal thermodinamika : siklus Rankine
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Siklus Rankine
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Kerja dan heat transfer
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Performance parameter
• Thermal efficiency
• Bwr, back work ratio
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Contoh soalSteam is the working fluid in an ideal Rankine cycle. Saturated vapor enters the turbine at 8.0 MPa and saturated liquid exits the condenser at a pressure of 0.008 MPa. The net power output of the cycle is 100 MW. Determine for the cycle
(a) The thermal efficiency, (b) the back work ratio, (c) the mass flow rate of the steam, in kg/h, (d) the rate of heat transfer, , into the working fluid as it passes through the
boiler, in MW, (e) the rate of heat transfer, from the condensing steam as it passes
through the condenser, in MW, (f) the mass flow rate of the condenser cooling water, in kg/ h, if cooling
water enters the condenser at 15C and exits at 35C.
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jawab
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Pengaruh perubahan tekanan
• Efisiensi siklus ideal
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Irreversibilitas dan efisiensi isentropik
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Peningkatan kinerja1. superheat/steam generator, peningkatan kualitas uap
dengan pemanasan lanjut (boiler+heat exchanger)2. Reheat, turbin bertingkat
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3. Regeneratif /regeneration : feed water heating