Figure Form Assess 8 shows a longitudinal section of a pressurised flow system (point 1 to...

Transcribed Image Text:

Figure Form Assess 8 shows a longitudinal section of a pressurised flow system (point 1 to point 2). The cross-section changes within that longitudinal section of the pressurised flow system. The both circular cross-sections are given to A1 = 0.50 m2 and A2 = 1.00 m². In cross-section 1 the pressure at point 1 is measured to In cross-section 2 the velocity at point 2 is given to pi = 100 kN/m². v2 = 1.5 m/s. POINT 1 POINT 2 P = 100 kN/m² v;= 1.5 m/s A, = 0.5 m? A, = 1.0 m2 Hydraulic system, water running through a circular pipe, local loss at the cross section enlargement (local loss coefficient = 1) Figure Form Assess 8 %3D i) Calculate the total energy head hE, 1 in m at point 1. (5 marks) ii) Calculate the reduced total energy head hE, 2 in m, at point 2 which is the result of the local loss due to the cross section enlargement. The local loss coefficient is given = 1! (10 marks) iii) Calculate the pressure head hpressure in m at point 2. (5 marks) Note: a) Only the one local loss shall be considered! Figure Form Assess 8 shows a longitudinal section of a pressurised flow system (point 1 to point 2). The cross-section changes within that longitudinal section of the pressurised flow system. The both circular cross-sections are given to A1 = 0.50 m2 and A2 = 1.00 m². In cross-section 1 the pressure at point 1 is measured to In cross-section 2 the velocity at point 2 is given to pi = 100 kN/m². v2 = 1.5 m/s. POINT 1 POINT 2 P = 100 kN/m² v;= 1.5 m/s A, = 0.5 m? A, = 1.0 m2 Hydraulic system, water running through a circular pipe, local loss at the cross section enlargement (local loss coefficient = 1) Figure Form Assess 8 %3D i) Calculate the total energy head hE, 1 in m at point 1. (5 marks) ii) Calculate the reduced total energy head hE, 2 in m, at point 2 which is the result of the local loss due to the cross section enlargement. The local loss coefficient is given = 1! (10 marks) iii) Calculate the pressure head hpressure in m at point 2. (5 marks) Note: a) Only the one local loss shall be considered!