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  • Writer's picturePatrick Law

WATER/SLURRY PUMP CALCULATION

Prompt 1: You are a 'Process Engineer' who specializes in assisting with process engineering calculations for chemical plants, focusing on oil, gas, and water engineering. It ensures that all calculations consistently include the following sections: 


BACKGROUND: This is a brief description of the project. Provide a concise background of the project, focusing on the context and significance of the calculations within the project framework.

OBJECTIVES: This is a detailed objective, clearly outlining each calculation goal. Name each variable to be calculated. [For example: Static Pressure at Outlet Nozzle of Tank T-100, P(T-100 outlet nozzle)]

INPUTS AND ASSUMPTIONS: For each input and assumptions, use the format: [Variable Name, Variable Symbol = [Value] [Unit] (ref: [Insert Reference Here])]. [For example: Pump P-100 Inlet Pipe Diameter, D(P-100 inlet) = 1 m (ref: ASSUMPTIONS)]

CALCULATIONS: Present calculations methodically along with the formula used. For each variable, show the methodology and calculations. 

QA/QC Check: List the QA/QC methodology. Reference the Python code used for validation, which will be printed in the reference section and attached at the end of this document.  Include a reference to the Python code that will be printed in the reference section and attached to the end of this calculation.  List the results from the calculation and the results of the QA/QC check.  Create a short statement saying whether the QA/QC check matches the Calculation.

CONCLUSION AND RECOMMENDATION: List the final outputs corresponding to the objectives, including the results following this format: [Objective = [Result] [unit]]

REFERENCES AND ATTACHMENT. List of all the references used in APA format. Enumerate attachments by number, including titles like "Attachment 1", "Attachment 2", etc. 


Prompt 2: Create a process engineering calculation. Perform the calculations. 

Objectives: 

Static Pressure at Outlet Nozzle of []Storage Tank T-XXX

Inlet Dynamic Pressure Drop in [] Pump P-XXXX

Outlet Dynamic Pressure Drop in [] Pump P-XXXX

Inlet Nozzle Pressure at [] Pump P-XXXX

Outlet Nozzle Overall Pump Pressure Drop at Rated Flow (dP)

[] Pump P-1001 Net Positive Suction Head Available (NPSHa) Calculation 

Power Requirement of the [] Pump P-XXXX


Use the applicable codes, standards, and guides applicable to the Oil and Gas Industry.  Assume a placeholder value for any missing data, make an assumption (which shall be included in the inputs and assumptions section), and calculate.  Use input valves from the following:


Required Design Flow Rate (Q) = [Insert value here] m³/hr (ref: insert reference here)

Pump Application (Application) = [Insert value here] (ref: insert reference here)

Source Tank Configuration (Tank_Config) = [Insert value here] (ref: insert reference here)

Low Liquid Level (LLLL) = [Insert value here] m (ref: insert reference here)

Fluid Density (ρ) = [Insert value here] kg/m³ (ref: insert reference here)

Fluid Viscosity (μ) = [Insert value here] cP (ref: insert reference here)

Atmospheric Pressure (P_atm) = [Insert value here] kPaa (ref: insert reference here)

Pump P-XXXX Inlet Pipe Diameter (P_inlet) = [Insert value here] mm (ref: insert reference here)

Pump P-XXXX Outlet Pipe Diameter (P_outlet) = [Insert value here] mm (ref: insert reference here)

Pump P-XXXX Inlet Pipe Equivalent Length (L_inlet) = [Insert value here] m (ref: insert reference here)

Pump P-XXXX Outlet Pipe Equivalent Length (L_outlet) = [Insert value here] m (ref: insert reference here)

Pump P-XXXX Inlet Fluid Velocity (v_inlet) = [To be calculated] m/s (ref: insert reference here)

Pump P-XXXX Outlet Fluid Velocity (v_outlet) = [To be calculated] m/s (ref: insert reference here)

Pump Nozzle Elevations (H_nozzle) = [Insert value here] m (ref: insert reference here)

Elevation of Destination (H_dest) = [Insert value here] m (ref: insert reference here)

Destination Tank Pressure (P_dest) = [Insert value here] (ref: insert reference here)

Pipe Material (Material) = [Insert value here] (ref: insert reference here)

Acceleration due to Gravity (g) = [Insert standard value here] m/s² (ref: standard value)

Water/Slurry Pump P-XXXX Final Destination Pressure = [To be calculated] kPa (ref: insert reference here)

Water/Slurry Storage Tank T-1001 Minimum Operating Pressure = [To be calculated] kPa (ref: insert reference here)

Pump P-XXXX Efficiency = [To be calculated] (ref: insert reference here)



Prompt 3: Proceed to conduct a thorough and accurate calculation for each objective. Ensure that each step of the calculation is executed with exactness, adhering strictly to the specified procedures. Make sure all the units are correct to avoid miscalculations. 


Prompt 4: Double Check and Please execute the specified calculation using Python. Conduct the process in a step-by-step manner, ensuring each stage of all the calculation is clearly delineated. Upon completion, compare the results with those obtained from previous calculations to ensure accuracy and consistency. Provide detailed explanations of each step for clarity and verification purposes. Show a detailed step by step calculation for each. Flag any places in the calculation that may not be correct using data analysis.  Check to make sure the calculation is done correctly for all math involved.


Prompt 5: Rely heavily on the previous output.  Check and regenerate your previous work. Ensure that every value has been referenced to some outside source or the “scope of work” or as an “assumption”.  Scientific reference sources are preferable over random internet sources.  Create a final reference section in APA format for all references that are not part of the “scope of work” or “assumption”. Avoid abbreviations. Some reminders for each section are as follows:


BACKGROUND: This is a brief description of the project. Provide a concise background of the project, focusing on the context and significance of the calculations within the project framework.

OBJECTIVES: This is a detailed objective, clearly outlining each calculation goal. Name and number each variable to be calculated. [For example: Static Pressure at Outlet Nozzle of Tank T-100, P(T-100 outlet nozzle)]

INPUTS AND ASSUMPTIONS: For each input and assumptions, use the format: [Variable Name, Variable Symbol = [Value] [Unit] (ref: [Insert Reference Here])]. [For example: Pump P-100 Inlet Pipe Diameter, D(P-100 inlet) = 1 m (ref: ASSUMPTIONS)]

CALCULATIONS: Provide comprehensive calculations, detailing the process of solving or computing each objective. Adhere to the following structure:[Formula: Present the specific formula used.]

[Detailed Calculations: Break down the calculation step-by-step, including every number and operation used as well as the result. Show how each component of the formula is applied using the actual numbers from the problem.]

QA/QC Check: List the QA/QC methodology.  Include a reference to the Python code that will be printed in the reference section and attached to the end of this calculation.  List the results from the calculation and the results of the QA/QC check.  Create a short statement saying whether the QA/QC check matches the Calculation (done automatically by ChatGPT).

CONCLUSION AND RECOMMENDATION: List the final outputs corresponding to the objectives, including the results following this format: [Static Pressure at Outlet Nozzle of Tank T-100, P(T-100 outlet nozzle)= [Result] [unit]]

REFERENCES AND ATTACHMENT. List of all the references used in APA format. Enumerate attachments by number, including titles like "Attachment 1", "Attachment 2", etc. 


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