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QUESTION 1 (5) 1.1. Name the main different parts of a boiler. 1.2. Blow down can...

Question:

QUESTION 1 (5) 1.1. Name the main different parts of a boiler. 1.2. Blow down can be done in two ways discuss the two ways an

QUESTION 1 (5) 1.1. Name the main different parts of a boiler. 1.2. Blow down can be done in two ways discuss the two ways and name the preferred method and state why? 1.3. A boiler supplies 6500 kg/h wet steam at a pressure equal to 1 MPa with a dryness fraction of 0.9 from supply water at 39.0°C while using 700 kg fuel with a calorific value of 32 MJ/kg. Calculate: 1.3.1. The thermal efficiency of the boiler (6) 1.3.2. The equivalent evaporation at 100°C (3) [Q1 = 18 marks)

Answers

Roilers Main laut Rennast ID SED Fan Heat anchangers Combustion chamber Fuel LowCES Blow down done in too ways Continuous bloDate 5707491 3600 4263-19433 kr/st Now total by fuel Now far fuel mifuel = 7oong/route calasific value=z2m3 lng Bexigua fungDate. to stremin Equivalent syaburation mais Asteam Gemena traben Howl X Meat subblica Heat Subblitd. Far, Steam GerengationDate lunur given that Bailey outbut= 6500 kg Juower team at Preacuna 29 Boiler inbut= 30°c 396 Sika in = 650dighede vir 1500k

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