
Specific gravity of gas at standard conditions relative to air (molecular weight divided by 29), The Reynolds number for gases can be expressed as Specific gravity of liquid relative to water (water = 1), The Reynolds number for liquids can be expressed as The Reynolds number is a dimensionless parameter that is useful in characterizing the degree of turbulence in the flow regime and is needed to determine the Moody friction factor. Reynolds number and Moody friction factor 2-Sketch four Bernoulli equation (courtesy of AMEC Paragon).ĭarcy’s equation further expresses head loss as 2 presents a simplified graphic illustration of the Bernoulli equation.įig. These restrictive conditions can actually be representative of many physical systems.įig. The basic equation developed to represent steady-state fluid flow is the Bernoulli equation which assumes that total mechanical energy is conserved for steady, incompressible, inviscid, isothermal flow with no heat transfer or work done. Although piping systems and pipeline design can get complex, the vast majority of the design problems encountered by the engineer can be solved by the standard flow equations. This leads to the derivation and development of equations that are applicable to a particular fluid. The variables associated with the fluid (i.e., liquid, gas, or multiphase) affect the flow. Assuming steady-state flow, there are a number of equations, which are based upon the general energy equation, that can be employed to design the piping system. These basic parameters are needed to design a piping system. The distance between Point A and Point B (or length the fluid must travel) and equivalent length (pressure losses) introduced by valves and fittings.The pressure, temperature, and elevation at Point B.The pressure, temperature, and elevation at Point A.The desired mass-flow rate (or volume) of the fluid to be transported.The characteristics and physical properties of the fluid.The minimum basic parameters that are required to design the piping system include, but are not limited to, the following. 7 Pressure drop caused by valves and fittings.6.4 Pressure Drop Because of Changes in Elevation.6.3 Simplified friction pressure drop approximation for two phase flow.3 Reynolds number and Moody friction factor.Studied the convergence monitor for pressure and temperature.CFD analysis of a partially insulated pipe: Calculated the temperature difference in oil pipe & insulation, calculated heat transfer coefficient.Performed erosion study, gas lift study, chemical injection study, and water injection study.

Calculated the line size & heat transfer coefficients for well tubing, flowline & riser system, arrival temperature, manifold pressure/temperature, lift gar rate, production & injection choke pressure drop.Designed a flowline-riser system: Designed and simulated the entire model in Pipesim for optimum output from the field.Simulating the results obtained in Deepriser to calculate the maximum von-mises stresses and check if they are within allowable limits.Design of offshore riser system: Calculation of required thickness, inner diameter and Outer diameter, tensioner system, loads acting on the riser and current & wave loadings.
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#PIPE TYPE IN PIPESIM FULL#
