8- 338.58 (cont’d)Energy balance on 1st effect:Δ±±±±.±±±Hnnnnvnn=⇒++−−====02654360605 27385000 11310253421531821818512bgbgbgb gbgbgbgbgkg H Oh2c.Mass balance on 2nd effect:318234=+nn(1) Energy balance on 2nd effect:ΔH=0nn43211262610252360 26543600318218185316 102522610bbb g++−−=E==×=+,.(2)Solve (1) and (2) simultaneously: ±n31267=kg h brine solution ±n41915=kg h HO2vProduction rate of fresh water=+=+=241818 19153733kg h fresh water Overall S balance:0 035 500012670138..=xxkg salt kg d.The entering steam must be at a higher temperature (and hence a higher saturation pressure) than that of the liquid to be vaporized for the required heat transfer to take place. e. 0.965 H O( )5000 kg/hl2(kg H
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This note was uploaded on 01/07/2012 for the course CH E 210 at Penn State.