Fluid Pressure Drop vs StressTable2021

This app computes energy loss involved in transmission of fluids for industrial applications. Users can pick from a list of fifteen most common fluids, pipe schedules and sizes with different material of construction to determine overall pressure loss. A judicious selection of pipe size is often a trade off between initial cost and subsequent energy cost involved in transmission of fluid from one point to another. Therefore, the app can be a helpful tool for practicing engineers and designers in analyzing different matrix. In addition, fluids that are not in the list, users can create a custom fluid with property data that can be saved and compute the pressure loss using the model provided in this app. Pressure loss is computed using Darcy’s equation, which gives a good estimate for both liquid and gases. For gases, the method is valid if the fluid velocity is within 40% of its sonic velocity. Also this app provides result of different flow parameters used in the computation of pressure loss. Section has been added for computation of pressure losses in valves and fittings. Users can choose any generic valve or fitting from the list provided in this app that are commonly used in industries. List of fluids: Air, Steam, Water, Nitrogen, Oxygen, Hydrogen, Helium, CO2, Methane, Ethane, Chlorine, Ammonia, Argon, Hydraulic oil, HFC (R410A), Custom (user's choice gas or liquid). Pipe Schedules: 10, 20, 30, 40, 60, 80, 100, 120, 140, 160. Users can pick applicable sizes under nominal diameter for which app provides the corresponding inside and outside diameter. Material of construction: Steel, SS, GI, CI, Concrete, Copper, Aluminum, PVC, Glass, Wood, FRP, Rubber. Based on the size, length and material of construction, the app gives the total weight of the pipe for trade-off analysis. Valves and Fittings: Globe valve, Gate valve, Ball valve, Butterfly valve, Angle valve, Check-valve, Check-angle, Check-lift. Elbow, Reducer, Diffuser, T-couple, Bend-U, Bend-45, Bend-90. Flow Parameters: Fluid velocity, Reynolds number and pipe friction coefficient are computed as a function of pipe size, fluid density and viscosity. App has its own algorithm to compute the coefficient of pipe friction based on roughness factor for the given material and Reynolds number under turbulent conditions. For laminar flow, it is a function of Reynolds number and irrespective of pipe roughness. For more accuracy users can edit the pipe roughness factor. For gases, additional data on sonic velocity is provided for a quick reference and validity. Unit of Measurement: Users can choose different unit of measurement for both flow as well as pressure drop under given unit standard (SI or USCS). This can be conveniently selected while choosing the fluid from the picker list as shown in the screen shots.

Background ASME Sec II-D give the material stress, physical and mechanical properties table. There are some tools available for Table 1-A stress values determination at given temperature but no tool available for other tables for quick determination of properties at given temperature. Applicable Code / Edition & Standards This app is based on ASME Section II-D 2021 Edition for metric and US customary unit. Utility This app gives material properties at given temperature for different Code section, also help user to do the hand calculation using the values where no commercial design software is available in the market. Competitive Edge There is no app available in the market to cover most of the tables available in ASME II-D for material properties. This app fills that gap and facilitate user to use these values in hand calculation where no commercial software is available for particular Code section. Target Audience This app targets inspection agencies, pressure items manufacturing organizations, quality control personnel, Engineers and designers who are involved in pressure items design calculations. Non Consumable Subscription: You can download the app from App Store for free, however One time Non-Consumable subscription in-app-purchase is required before you can use any of the Tables of this app. Purchase can be made by going to the menu of the application. Terms and condition are also provided there.