Accurate and fast leak detection and leak localization are critical functions for pipelines. In addition to the economic reasons for leak detection, there are also environmental constraints. Fast acting and reliable leak detection and leak location…
Pipeline leak detection has attracted great research interests for years in the energy industry. Continuous pressure monitoring is one of the most straightforward approaches in leak detection which utilizes pressure point analysis (PPA) algorithms to…
Based on inverse hydraulic-thermodynamic transient analyses and on an improved particle swarm optimization (PSO), a leak detection and localization method is proposed for liquid pipelines. The finite volume method is employed to numerically model the…
The fluid behavior in a pipeline of Liquefied Petroleum Gas (LPG)-according to the principles of conservation of mass and momentum-is governed by a set of Partial Differential Equations (PDE). In this work, such equations are modified with the…
Pressure and rate data are commonly recorded as part of a basic monitoring program in CCS projects. This paper discusses the application of multiple analytical techniques to interpret pressure and rate transient data from CO2 injection and storage…
Wellbore storage (WBS) occurs due to fluid loading/unloading in the wellbore, when a well starts production or is shut-in. This phenomenon creates variable sandface rate and time lag between the surface production rate and the stable sandface rate.…
In renewable microgrid systems, energy storage system (ESS) plays an important role, as an energy buffer, to stabilize the system by compensating the demand-generation mismatch. Battery energy storage system serves as a decisive and critical…
Blending hydrogen into the natural gas (NG) network could provide an efficient pathway for decarbonising the NG system through power-to-gas technologies. However, due to the presence of potentially multiple and intermittent hydrogen injection…
In this paper, a power management strategy is proposed for enhancing the benefits of energy storage systems to wind powered offshore Oil and Gas platforms. Different functionalities of the converter, such as following a charging schedule from an…
We formulate a nonlinear optimal control problem for intraday operation of a natural gas pipeline network that includes storage reservoirs. The dynamics of compressible gas flow through pipes, compressors, reservoirs, and wells are considered. In…
An islanded DC Microgrid comprises dispatchable and renewable generation units, battery energy storage systems, and loads. An islanded DC microgrid presents several operational challenges due to load and renewable generation fluctuations. Therefore,…
This paper discusses the implementation of a transient stability model of Compressed Air Energy Storage (CAES) systems in a power system analysis package. A block-diagram based model of a two-machine CAES system is proposed, including specific…
In renewable microgrid systems, energy storage system (ESS) plays an important role, as an energy buffer, to stabilize the system by compensating the demand-generation mismatch. Battery energy storage system serves as a decisive and critical…
The insulator in direct current gas-insulated transmission lines (DC-GIL) would suffer discharge risk due to surface charge accumulation under thermal-electric coupled fields. In this paper, the transient surface charge accumulation characteristics…
Thermodynamic feasibility evaluation is investigated for a salinity gradient solar pond-based power generation system. A dual-pressure evaporation organic Rankine cycle using the zeotropic mixture as working fluid is employed for power generation. To…
Blending hydrogen into the natural gas (NG) network could provide an efficient pathway for decarbonising the NG system through power-to-gas technologies. However, due to the presence of potentially multiple and intermittent hydrogen injection…
A physical model based on flow rate testing instrument used flow-concentrating horizontal wells is established. According to the continuity equation and momentum conservation equations, a mathematical model of oil-water two-phase flow is derived. The…
Pipeline leak detection has attracted great research interests for years in the energy industry. Continuous pressure monitoring is one of the most straightforward approaches in leak detection which utilizes pressure point analysis (PPA) algorithms to…
According to the theory of fluid-structure interaction, the optimal adjusting model of valve is established to control surge pressure and stress in pipeline. It can be solved with direct search toolbox in MATLAB. The optimal closure rules of valve…
A pipe line pump station experienced failure of the dry-type, 2.5MVA, medium voltage, Adjustable Speed Drive (ASD) Input transformers called ASD-2 and ASD-5, on three different occasions. The authors conducted a failure investigation involving…
The fluid behavior in a pipeline of Liquefied Petroleum Gas (LPG)-according to the principles of conservation of mass and momentum-is governed by a set of Partial Differential Equations (PDE). In this work, such equations are modified with the…
The drainage process of a large drop natural gas pipeline after a pressure test is a complicated transient flow process. This process is a gas-phase and liquid-phase flow process connected by a pig, in which the pressure inside the tube, and the flow…
The availability of sophisticated computer-based supervisory control systems has created numerous opportunities for real-time mathematical modeling of related processes. Such models typically involve numerical solutions to fundamental relations…
Accurate and fast leak detection and leak localization are critical functions for pipelines. In addition to the economic reasons for leak detection, there are also environmental constraints. Fast acting and reliable leak detection and leak location…
As the operation process of natural gas pipeline are affected by gas sources and the fluctuation of consumers' gas consumption, and the operation state changes with time, the transient optimization technology is more accurate and reliable for…
The model of a Iongtime prediction of the climate-weather change influence on a critical infrastructure is presented. Models of a Iongtime prediction of climate-weather change process limit transient probabilities at its states and coefficients of…
This paper discusses the implementation of a transient stability model of Compressed Air Energy Storage (CAES) systems in a power system analysis package. A block-diagram based model of a two-machine CAES system is proposed, including specific…
According to the characteristics of gas reservoir development and requirement of production management, a new method for analyzing rate decline in fractured well is presented in this paper, which overcomes the disadvantage that conventional rate…
Vortex flowmeter is installed in piping to measure the fluid flow rate. The piping is easily disturbed by strong transient impact in the application fields, such as other components impacting on the pipeline, manual knocking on the pipe, and opening…
Integrated Energy System (IES) is composed of smart grid which is the core system and multi-resource, such as thermal system and oil and gas system etc. IES realizes electricity-gas-cold-heat multi-energy complementary and…
Pressure transient analysis model for Multiple Hydraulically Fractured Horizontal Well is proposed in this paper, which takes into account the adsorption effect and the diffusion effect of gas, the compression sensitivity effect, the wellbore storage…
ENELVEN, a regional electricity utility in Venezuela, has installed a total of five series capacitors in their grid to increase the capacity of existing overhead transmission lines serving the residential, petroleum and petrochemicals center of…
In renewable based DC microgrids, energy storage devices are implemented to compensate for the generation-load power mismatch. Usually, Battery Energy Storage Systems (BESS) are used, but they cannot meet the transient load demand due to low power…
In renewable microgrid systems, energy storage system (ESS) plays an important role, as an energy buffer, to stabilize the system by compensating the demand-generation mismatch. Battery energy storage system serves as a decisive and critical…
The main purpose of this research is to design a high-fatigue performance hoop wrapped compressed natural gas (CNG) composite cylinder. To this end, an optimization algorithm was presented as a combination of finite element simulation (FES) and…