PROCTECH 2EC3 Lecture Notes - Lecture 16: Ideal Gas, Thermostat, Pressure Measurement
19 Mar 2018
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Open system: transferred from the nozzle to its surroundings. The approach velocity of the steam is negligible. Problem 1: steam at 250 and 7 is expanded through a nozzle to 200 and 4 . == at 250 and 7 it is superheated steam. ==. at 400 and 4 it is superheated steam. Go to b. 7 at 1=200 ; 1=4 , vw = zn (cid:129)n (4 1) . Units: uvw= x: zvw = {|} ~(cid:127)n (cid:128)z. A fuel oil is burned with air in a boiler furnace. The combustion produces 813 of thermal energy, of from the furnace to a stack at 650 . Water enters the boiler tubes as a liquid at 20 and leaves the tubes as saturated steam at 20 absolute. 1 . which 65% is transferred as heat to boiler tubes that pass through the furnace. The combustion products pass: calculate the rate {vw(cid:136)(cid:128) at which steam is produced.
