ssewqeqw L V2hk.sürekli= f-5°2g+ azPg+ z, + hpompa.s =PgP22+z + hearbin,s + hg,toplam Re =p.V.D1 2g6.9a-1.8 logRehKyerel EKhk toplam= hx sürekli + hg verel Wmit =ПротраENPY = + zg) pompa girişi- wr, V4)H =Nsp =V= 2r,b, V1,m = 2nrzb,V2nWmila%3DWAFrom the experiments performed on the pump(pump A) in a laboratory, the following values at thebest efficiency point were obtained;cmDA = 15 cm, H = 240 cm, V = 1500 , PA = 998 *9nA = 1800 rev / minute and veNApompa= 0,91.HB = 610 cm, pB = 998 K9 ve ý= 4100 CmIt would be desirable to design a new pump (pump B)with values. Accordingly, which of the following is therevolution number of the new pump?2051 rev / minuteO 2512 rev / minuteO 2196 rev / minuteO 2378rev / minute1969rev / minute

The given values are - NA=1800 rpm, QA=1500 cm3s , HA=240 cmNB=?, QB=4100 cm3s , HB=610 cmFrom model…

L V: * 29 Pg p.V.D +2 + hearbing + hg roplam Re = -1.8 log Re hgzoplam= hsarekli + hgyeret pompa ENPY - -ana) H =(r,Va - ar, V) N pompa girisl From the experiments performed on the pump (pump A) in a laboratory, the following values at the best efficiency point were obtained; DA = 15 cm, H, = 240 cm, V = 15 nA = 1800 rev / minute and ve nApomp = 0,91. %3D PA = 998 Hg = 610 cm,pg =998 ve v- 4100 It would be desirable to design a new pump (pump B) with values. Accordingly, which of the following is the revolution number of the new pump? 2051 rev / minute 2512 rev / minute

L V: * 29 Pg p.V.D +2 + hearbing + hg roplam Re = -1.8 log Re hgzoplam= hsarekli + hgyeret pompa ENPY - -ana) H =(r,Va - ar, V) N pompa girisl From the experiments performed on the pump (pump A) in a laboratory, the following values at the best efficiency point were obtained; DA = 15 cm, H, = 240 cm, V = 15 nA = 1800 rev / minute and ve nApomp = 0,91. %3D PA = 998 Hg = 610 cm,pg =998 ve v- 4100 It would be desirable to design a new pump (pump B) with values. Accordingly, which of the following is the revolution number of the new pump? 2051 rev / minute 2512 rev / minute

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter10: Heat Exchangers

Section: Chapter Questions

Problem 10.19P

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