1) Steam boiler is to generate saturated steam at 800 kPa abs from water at 70 C. Flue gas from bunker fuel-fired furnace is available at temperature of 1100 C. Final temperature of flue gas leaving the boiler is 275 C, what is the LMTD?

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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HEAT EXCHANGER LMTD
Instruction:
Draw the Temperature & compute the LMTD for CO-CURRENT & COUNTER-CURRENT flow
heat exchanger
1) Steam boiler is to generate saturated steam at 800 kPa abs from water at 70 C. Flue gas
from bunker fuel-fired furnace is available at temperature of 1100 C. Final temperature of
flue gas leaving the boiler is 275 C, what is the LMTD?
2) Water cooled steam condenser receives exhaust from multi-stage turbine at saturation
temperature of 40 C. Cooling water is available at 20 C at the inlet condition and
temperature of water leaving the condenser is at 28 C. What is the LMTD?
Transcribed Image Text:HEAT EXCHANGER LMTD Instruction: Draw the Temperature & compute the LMTD for CO-CURRENT & COUNTER-CURRENT flow heat exchanger 1) Steam boiler is to generate saturated steam at 800 kPa abs from water at 70 C. Flue gas from bunker fuel-fired furnace is available at temperature of 1100 C. Final temperature of flue gas leaving the boiler is 275 C, what is the LMTD? 2) Water cooled steam condenser receives exhaust from multi-stage turbine at saturation temperature of 40 C. Cooling water is available at 20 C at the inlet condition and temperature of water leaving the condenser is at 28 C. What is the LMTD?
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