Pipe Stress Analysis, Piping Design & Structural Engineering Services across Canada
Meena Development LTD., is a premier provider of Piping Design Solutions and Engineering Services. Our fields of specialty are Piping Stress Analysis, Plant Layout, Piping Design & Engineering, and Structural Engineering for Industrial Plants and Facilities across Canada, United States and worldwide.
Here is a list of Software Solutions and Engineering Services currently offered. Our Engineering Solutions offer flexibility to suit our clients needs using the following software and more:
CAESAR II for Pipe Stress Analysis
Piping Design Software for Design and Detail Engineering Services such as PDS, SmartPlant 3D, AutoCAD Plant 3D, CADWorx.
Data Translators for PDMS, PDS, SmartPlant 3D, AutoCAD Plant 3D, STAAD Pro., Risa 3D CAESAR II etc.
STAAD Pro, RISA3D, RAM Connections, for Structural Analysis
Meena Development LTD. provides the above solutions and services to EPC Contractors, Owner Operators and Engineering Consultants involved in the following fields.
Technical Capabilities in Design & Detail Engineering Services Layout, Piping Design & Engineering, Pipe Stress Analysis Services
Design of complete Plant / Facility Layout including generation of:
+ Piping & Instrumentation Diagrams (P&IDs)
+ Composite Equipment and Piping / Tubing Layout Drawings (GAs)
+ Layout Drawings for Structures, Cable Trays and Ducts
+ Piping / Tubing Isometrics and Spools
+ Reports including Line List, Valve List, Instrument List, Bill of Materials etc.
Design and Detail Engineering of Equipment, Piping / Tubing and Supports to Piping / Tubing
+ Equipment design using ASME Section VIII, API, NEMA, TEMA etc.
+ Piping / Tubing design and stress analysis using ANSI, ASME Section III, European & other codes for weight, thermal, wind and other static loads
+ Piping / Tubing Support design and analyses (including ASME Section III)
+ Evaluation of existing piping installations and modifications
+ Design and stress analysis of fiberglass reinforced piping (FRP)
Design and analysis of piping / tubing systems, structures and equipment (mechanical and electrical) for all types of dynamic loads, as applicable, including:
+ Pump excitation
+ Fluid hammer
+ Safety valve release
+ Seismic (earthquake)
+ Slug flow and Pulsating flow
+ Other impact and shock loads
Analysis of Nozzle connections
+ Nozzles on vessels, exchangers and tanks
+ Nozzles for pumps, compressors and turbines
Computational Fluid Dynamics (CFD) for determination of flow characteristics in Piping & Ducting systems and Mechanical equipment
Preparation of Intelligent P&IDs and 3D Plant Model
Customization of 2D and 3D plant design software to suit project requirements
Intelligent P&ID database development and drafting using P&ID software and generation of reports such as line list, valve list, equipment list, instrument list etc.
Creation of 3D plant model comprising of civil / structures, equipment, piping / tubing, ducting, cable trays, supports etc.
Generation of plot plans, GA drawings, layout drawings, isometrics, spools, detail drawings for supports and reports such as Bill of Materials from 3D model
Conversion of 2D drawings to 3D model
Attachment of information to intelligent P&IDs and 3D models
Integration of P&IDs and 3D models with client's in-house and third party software
Walk-through, animation of construction sequences and progress monitoring
Animation of dismantling and assembly sequences for equipment
Civil & Structural Design & Analysis
Layout of Concrete & Steel Structures in 3D
Design and Qualification of Supports to Equipment, Ducting and Cable Trays
Design and Qualification of Embedded Parts
Generation of GA drawings, joint detailing, fabrication drawings, BOM etc.
Layout of Electrical Cable Trays and Supports
Layout of Electrical Buildings in 3D for High Tension / Low Tension Switchgear, Panels etc.
Cable Routing and Scheduling
Outdoor Switchyard / Substation Design
3D Layout and Extraction of Drawings & Bill of Quantities
Control & Instrumentation (C&I) Design
Identify relevant information from P&IDs
Layout of Instruments, Junction Boxes & Control Panels
Instrument and Control Valve Lists
Instrumentation Data Sheets
Layout of C&I Cable Trays and Supports
Cable Routing and Scheduling
3D Layout and Extraction of Drawings & Bill of Quantities
Piping Design Services / Piping Engineering Services
Little P.Eng. Engineering specializes in Piping Engineering and Stress Analysis serving every industry including Power (Nuclear, Fossil, Biomass, Gas), Co-generation, Oil and Gas, Petrochemical, Chemical, Pulp & Paper, Process Industry. The team members of Little P.Eng. Engineering team have been part of the industry for decades and have the capability to work on every software related to piping engineering, stress analysis and finite elements including PDMS, CADWorx, CAESAR II, AutoCAD following any CODE requirements including ASME Sec III NB, NC, ND (for Nuclear applications), B31.1, B31.3, B31.4, B31.8, etc.
All the services you need, all in one place. We cover all the aspects of piping engineering, detailed design, stress Analysis, structural and support design and code calculations to meet every type of need.
Pre - Bid Engineering Documents
Conceptual Plot Plans and Layouts
Preliminary Equipment Layouts
Pipe Support Details including Bill of Material
Equipment Layouts as per Design Basis
Piping General Arrangement Drawings
Line List and Valve List
Piping Material Specification
Preparation of Bill of Materials
Pipe Support Index/Schedule
Tie - In Schedules
Pipe Stress Analysis Services
Stress Analysis is our specialty. We have industry experts who can resolve any complex problem related to any piping and structural analysis. Our teams have a long and wide range of project experience to carry out the full spectrum of analysis for piping systems and piping flexibility analysis. We conduct detailed piping stress analysis, evaluation, and confirmation of the structural & operational integrity of process piping systems Little P.Eng. Engineering team is proficient in analyzing the impact of external focus on static structures, such as construction components, machine components, and more. Our highly skilled engineers offer structural analysis services to ensure that these modules meet fatigue safety requirements. Our structural and stress analysis specialists help simulate the movement of non-stationary objects in vibration analyses, lifting analyses, and other services. With our technology and experience in structural stress analysis, we quantify and further rectify failures in the structure of components that do not meet the proposed design plan, which could result from improper use of materials or even flaws in the manufacturing process.
All the services you need, all in one place.
We cover all the aspects of piping engineering, detailed design, stress Analysis, structural and support design and code calculations to meet every type of need.
Static Pipe Flexibility Analysis
Water Hammer Analysis
Vibration & Shock Analysis
Spring Hanger Design
Generation of Pipe Isometric Drawings
Structural Analysis : In-service, lifting & transportation
Analysis and Design of steel structures .
Structural design calculations report
If you are searching for "Pipe Stress Analysis, Piping Design & Structural Engineering Services across Canada" please contact us to get a free quote.
Basic Pipe Stress Concepts and Piping Loading Categories;
Piping systems experience different loadings, categorized into three basic loading types, namely Sustained, Thermal and Occasional loads. Sustained Load: It mainly consists of internal pressure and dead-weight. Dead-weight is from weight of pipes, fittings, components such as valves, operating fluid, test fluid, insulation, cladding, lining etc. Internal design/operating pressure develops uniform circumferential stresses in the pipe wall, based on which pipe wall thickness is determined during the process/P&ID stage of plant design such that "failure by rupture" is avoided. In addition, internal pressure develops axial stresses in the pipe wall. These axial pressure stresses vary only with pressure, pipe diameter and wall thickness, all three of which are pre-set at the P&ID stage and hence these axial pressure stresses cannot be reduced by changing the piping layout or the support scheme. On the other hand, dead-weight causes the pipe to bend (generally downward) between supports and nozzles, producing axial stresses in the pipe wall (also called "bending stresses"); these bending stresses linearly vary across the pipe cross-section, being tensile at either the top or bottom surface and compressive at the other surface. If the piping system is not supported in the vertical direction (i.e., in the gravity direction) excepting at equipment nozzles, bending of the pipe due to dead-weight may develop excessive stresses in the pipe and impose large loads on equipment nozzles, thereby increasing the susceptibility to "failure by collapse". Various international piping codes impose limits, also called "allowable stresses for sustained loads", on these axial stresses generated by dead-weight and pressure in order to avoid "failure by collapse". For the calculated axial stresses to be below such allowable stresses for sustained loads, it may be necessary to support the piping system vertically. Typical vertical supports to carry dead-weight are:
Resting steel supports,
Variable spring hangers, and
Constant support hangers.
Both rod hangers and resting steel supports fully restrain downward pipe movement but permit pipe to lift up at such supports. If pipe lifts up at any of the rod hangers / resting supports during operating condition, then that support does not carry any pipe weight and hence will not serve its purpose. Two examples are presented to illustrate how piping can be supported by spring hangers and resting steel supports to comply with the code requirements for sustained loads. Thermal Load (also referred as Expansion Load): It refers to the "cyclic" thermal expansion/contraction of piping as the system goes from one thermal state to another thermal state (for example, from "shut-down" to "normal operations" and then back to "shut-down"). If the piping system is not restrained in the thermal growth/contraction directions (for example, in the axial direction of a straight pipe), then for such cyclic thermal load, the pipe expands/contracts freely; in this case, no internal forces, moments and resulting stresses and strains are generated in the piping. On the other hand, if the pipe is "restrained" in the directions it wants to thermally deform (such as at equipment nozzles and pipe supports), such constraint on free thermal deformation generates cyclic thermal stresses and strains throughout the system as the system goes from one thermal state to another. When such calculated thermal stress ranges exceed the "allowable thermal stress range" specified by various international piping codes, then the system is susceptible to "failure by fatigue". So, in order to avoid "fatigue failure" due to cyclic thermal loads, the piping system should be made flexible (and not stiff). This is normally accomplished as follows:
Introduce bends/elbows in the layout, as bends/ elbows "ovalize" when bent by end-moments, which increases piping flexibility.
Introduce as much "offsets" as possible between equipment nozzles (which are normally modeled as anchors in pipe stress analysis). For example, if two equipment nozzles (which are to be connected by a pipeline) are in line, then the straight pipe connecting these nozzles is "very stiff". On the other hand, if the two equipment are located with an "offset", then their nozzles will have to be connected by an "L-shaped" pipeline which includes a bend/elbow; such "L-shaped" pipeline is much more flexible than the straight pipeline mentioned above.
Introduce expansion loops (with each loop consisting of four bends/elbows) to absorb thermal growth/contraction.
Lastly, introduce expansion joints such as bellows, slip joints etc., if warranted. In addition to generating thermal stress ranges in the piping system, cyclic thermal loads impose loads on static and rotating equipment nozzles. By following one or more of the steps from (a) to (d) above and steps (e) and (f) listed below, such nozzle loads can be reduced.
Introduce "axial restraints" (which restrain pipe in its axial direction) at appropriate locations such that thermal growth/contraction is directed away from equipment nozzles, especially critical ones.
Introduce "intermediate anchors" (which restrain pipe movement in the three translational and three rotational directions) at appropriate locations such that thermal deformation is absorbed by regions (such as expansion loops) away from equipment nozzles.
A few example layouts are presented to illustrate how loops/offsets, axial restraints and intermediate anchors are used to reduce thermal stresses in piping (and resulting nozzle loads). Occasional Load: This type of load is imposed on piping by occasional events such as earthquake, wind etc. To protect piping from wind (which normally blows in horizontal plane), it is normal practice to attach "lateral supports" to piping systems. During an earthquake, the earth may also move vertically. To protect piping against both horizontal and vertical movement during earthquake, some of the resting supports may be made as "integral 2-way vertical and lateral restraints". Fortunately, to carry sustained loads, normally vertical supports (as those listed under the Section titled "Sustained Load" above) are required. To withstand static seismic 'g' loads, "integral 2-way vertical and lateral restraints" are required. Generally, some of the vertical weight supports can be modified as "integral 2-way vertical and lateral restraints". On the other hand, for thermal loads, zero supports give zero stresses. So, thermal stresses and equipment nozzle loads will normally decrease as the number of supports goes down. Axial restraints and intermediate anchors are recommended only to direct thermal growth away from equipment nozzles.
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