Table 4 Uncertainty values for a segmental orifice with modulus m = 0.273 tested at Γ′ = 90° and Γ’ = 60°.

From: Determination of the constant pressure loss for a new segmented orifice with an inclined inflow plane

Tested orifice with modulus m = 0.273

Re [–]

Δp [Pa]

ΔΔp [Pa]

qm [kg/s]

Δqm [kg/s]

Segmental orifice γ′ = 90°

4259

115.7

0.23132

0.166848

0.00083

6476

264.8

0.52964

0.252487

0.00100

8909

492.4

0.98478

0.344048

0.00119

10,764

712.5

1.42491

0.413709

0.00133

12,728

982.7

1.96537

0.485696

0.00147

13,793

1143.1

2.28619

0.523867

0.00155

14,760

1297.1

2.59424

0.557942

0.00162

15,717

1459.2

2.91844

0.592012

0.00168

16,501

1600.5

3.20100

0.620060

0.00174

17,426

1775.5

3.55094

0.653305

0.00181

18,163

1932.8

3.86568

0.681734

0.00186

Segmental orifice γ′ = 60°

4172

90.0

0.18008

0.165423

0.00083

6434

211.8

0.42360

0.253279

0.00101

8561

389.9

0.77985

0.343196

0.00119

10,593

561.9

1.12387

0.411522

0.00132

12,461

769.0

1.53796

0.481188

0.00146

13,452

889.6

1.77930

0.517600

0.00154

14,436

1012.4

2.02472

0.552199

0.00160

15,388

1143.8

2.28755

0.587197

0.00167

16,255

1267.4

2.53473

0.618090

0.00174

17,166

1407.5

2.81491

0.651949

0.00180

17,878

1537.2

3.07434

0.680620

0.00186

Back to article page