Pipeline Pressure Wave Control for Lower Turbulent Flow Resistance
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Solution Overview
Problem
Current pipeline transportation technologies face challenges in optimizing pressure waves parameters for turbulent flow, leading to suboptimal energy efficiency due to constant state parameters and symmetrical pressure waves, resulting in inadequate hydrodynamic resistance reduction.
Innovation Solution
An engineering system comprising a pumping system, a wave system with a pressure waves generator, measurement devices, and a dynamic controller that continuously adjusts the frequency and amplitude of pressure waves to maintain minimum hydrodynamic resistance coefficients in real-time, adapting to changing flow rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If constant state parameters and symmetrical pressure waves are used, then the system operation is simple, but the energy efficiency is suboptimal and hydrodynamic resistance reduction is inadequate
Solution Approach 1:
The patent implements dynamic adjustment of pressure wave parameters (frequency and amplitude) based on real-time flow rate measurements. The controller continuously modifies these parameters to maintain optimal energy efficiency across varying operating conditions, transforming the system from static to dynamic operation.
Solution Approach 2:
The patent changes the physical parameters of pressure waves (frequency and amplitude) according to the current flow rate. By adjusting these parameters dynamically, the system achieves optimal hydrodynamic resistance reduction and energy efficiency for each operating condition, rather than using fixed constant parameters.
2Use of energy by moving object
If pressure waves parameters are optimized for each flow rate, then energy efficiency improves, but the system complexity increases due to continuous adjustment requirements
Solution Approach 1:
The patent employs a feedback control system where flow rate is continuously measured and used to adjust pressure wave parameters. The controller receives flow rate information and automatically modifies frequency and amplitude to maintain optimal energy efficiency, creating a closed-loop control system.
Solution Approach 2:
The system automatically adjusts its own operating parameters (pressure wave frequency and amplitude) based on measured flow conditions without external intervention. The controller self-regulates the pressure wave generator to maintain optimal energy efficiency across varying flow rates.
3Stress or pressure
If asymmetrical pressure waves with optimized front and back times are used, then hydrodynamic resistance decreases, but the wave generation system becomes more complex
Solution Approach 1:
The patent employs asymmetrical pressure wave forms where the front time (pressure increase) and back time (pressure restoration) are deliberately made unequal. This asymmetry is optimized to achieve maximum hydrodynamic resistance reduction, contrasting with traditional symmetrical wave forms.
Solution Approach 2:
The patent uses periodic pressure waves with controlled frequency and duty cycle. The periodic nature of the waves, combined with optimized front and back time ratios, creates sustained hydrodynamic resistance reduction through repeated cycles of pressure application and restoration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly reduces energy consumption by optimizing hydrodynamic resistance and maintaining energy efficiency across varying flow rates, enhancing the operational efficiency of pipeline transportation systems.
Implementation Method 1
generating pressure waves of the controlled frequency and amplitude, and providing their propagation through the discharge pipeline
Implementation Method 2
The interaction of pressure waves with the turbulent flow of the current medium in the pipeline
Implementation Method 3
The system of measurement devices, consisting of measurement devices installed on the elements of the system for generating pressure waves, is configured to continuously providing measuring of instantaneous values of the state parameters of turbulent flow, velocity and pressure
Implementation Method 4
a feedback dynamic controller connected to the system for generating pressure waves, the program of which performs the process of automatic controlling of the energy efficient mode
Implementation Method 5
maintaining minimum value of the hydrodynamic resistance coefficient, corresponding to the current value of the flow rate, in the real time mode
Data Source
AI summary
An engineering system, comprising a pumping system, a wave system, a system of measuring devices, and a dynamic controller, configured for generating pressure waves with controlled frequencies, and their propagating through turbulent flow in the suction and discharge pipelines of the pumping system. The engineering system performs a method of automatic controlling the energy efficient mode of pipeline transporting of fluid medium. The dynamic controller regulates and adjusts in real time optimal values of frequencies of generating pressure waves, providing minimum values of hydrodynamic resistance of turbulent flow in the discharge pipeline, for any average value of the flow velocity, compared to the hydrodynamic resistance of the turbulent flow having the same velocity, but not interacting with pressure waves. Automatic controlling the process of generating pressure waves with optimal frequencies by the dynamic controller, ensures the maximum energy efficiency of the process of pipeline transporting of fluid medium.