scholarly journals Decentralized Optimization of Electricity-Natural Gas Flow Considering Dynamic Characteristics of Networks

2020 ◽  
Vol 10 (10) ◽  
pp. 3348
Author(s):  
Weicong Wu ◽  
Tao Yu ◽  
Zhuohuan Li ◽  
Hanxin Zhu
Keyword(s):  
Natural Gas ◽  
Dynamic Characteristics ◽  
Energy Flow ◽  
Gas Flow ◽  
Collaborative Optimization ◽  
Convex Programming Problem ◽  
System Operation ◽  
Renewable Energy Consumption ◽  
Gas System ◽  
Natural Gas Flow

The interconnection of power and natural gas systems can improve the flexibility of system operation and the capacity of renewable energy consumption. It is necessary to consider the interaction between both, and carry out collaborative optimization of energy flow. For space-time related line packs, this paper studies the optimal multi-energy flow (OMEF) model of an integrated electricity-gas system, taking into account the dynamic characteristics of a natural gas system. Besides, in order to avoid the problem of large data collection in centralized algorithms and consider the characteristics of decentralized autonomous decision-making for each subsystem, this paper proposes a decentralized algorithm for the OMEF problem. This algorithm transforms the original non-convex OMEF problem into an iterative convex programming problem through penalty convex-concave procedure (PCCP), and then, uses the alternating direction method of multipliers (ADMM) algorithm at each iteration of PCCP to develop a decentralized collaborative optimization of power flow and natural gas flow. Finally, numerical simulations verify the effectiveness and accuracy of the algorithm proposed in this paper, and analyze the effects of dynamic characteristics of networks on system operation.

Field Calibration of Orifice Meters for Natural Gas Flow

1989 ◽  
Vol 111 (1) ◽  
pp. 22-33
Author(s):  
V. C. Ting ◽  
J. J. S. Shen
Keyword(s):  
Natural Gas ◽  
Gas Flow ◽  
Reynolds Numbers ◽  
National Standard ◽  
Test Facility ◽  
Critical Flow ◽  
Calibration Data ◽  
Discharge Coefficients ◽  
Sand Hills ◽  
Natural Gas Flow

This paper presents the orifice calibration results for nominal 15.24, 10.16, and 5.08-cm (6, 4, 2-in.) orifice meters conducted at the Chevron’s Sand Hills natural gas flow measurement facility in Crane, Texas. Over 200 test runs were collected in a field environment to study the accuracy of the orifice meters. Data were obtained at beta ratios ranging from 0.12 to 0.74 at the nominal conditions of 4576 kPa and 27°C (650 psig and 80°F) with a 0.57 specific gravity processed, pipeline quality natural gas. A bank of critical flow nozzles was used as the flow rate proving device to calibrate the orifice meters. Orifice discharge coefficients were computed with ANSI/API 2530-1985 (AGA3) and ISO 5167/ASME MFC-3M-1984 equations for every set of data points. The uncertainty of the calibration system was analyzed according to The American National Standard (ANSI/ASME MFC-2M-A1983). The 10.16 and 5.08-cm (4 and 2-in.) orifice discharge coefficients agreed with the ANSI and ISO standards within the estimated uncertainty level. However, the 15.24-cm (6-in.) meter deviated up to − 2 percent at a beta ratio of 0.74. With the orifice bore Reynolds numbers ranging from 1 to 9 million, the Sand Hills calibration data bridge the gap between the Ohio State water data at low Reynolds numbers and Chevron’s high Reynolds number test data taken at a larger test facility in Venice, Louisiana. The test results also successfully demonstrated that orifice meters can be accurately proved with critical flow nozzles under realistic field conditions.

scholarly journals Economic impacts of natural gas flow disruptions between Russia and the EU

Energy Policy ◽  
2017 ◽  
Vol 106 ◽  
pp. 288-297 ◽  
Author(s):  
Maaike C. Bouwmeester ◽  
J. Oosterhaven
Keyword(s):  
Natural Gas ◽  
Gas Flow ◽  
Economic Impacts ◽  
Flow Disruptions ◽  
The Eu ◽  
Natural Gas Flow

Investigation of hydrate formation in natural gas flow through underground transmission pipeline

2013 ◽  
Vol 15 ◽  
pp. 27-37 ◽  
Author(s):  
Mahmood Farzaneh-Gord ◽  
Hamid Reza Rahbari ◽  
Mahdi Bajelan ◽  
Lila Pilehvari
Keyword(s):  
Natural Gas ◽  
Gas Flow ◽  
Hydrate Formation ◽  
Transmission Pipeline ◽  
Flow Through ◽  
Natural Gas Flow

FEATURES OF FLOW AND HEAT TRANSFER IN THE INNER CAVITY OF THE FLAME STABILIZER IN THE PRESENCE AND ABSENCE OF NICHES ON ITS SIDE SURFACES

2018 ◽  
Author(s):  
Nataliia Fialko ◽  
◽  
Julii Sherenkovskiy ◽  
Nataliia Meranova ◽  
Serhii Aloshko ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Comparative Analysis ◽  
Natural Gas ◽  
Gas Flow ◽  
Type A ◽  
Flow And Heat Transfer ◽  
Presence And Absence ◽  
Stabilizer Type ◽  
Natural Gas Flow

For microjet burners of the stabilizer type, a study of the regularities of the natural gas flow in the inner cavity of the flame stabilizer has been carried out. A comparative analysis of the features of heat transfer from the inner surfaces of the stabilizer walls is carried out for two variants of its configuration: flat and in the presence of trapezoidal niches on its lateral surfaces.

Liquefied natural gas flow in the insulation wall of a cargo containment system and its evaporation

2011 ◽  
Vol 31 (14-15) ◽  
pp. 2605-2615 ◽  
Author(s):  
Hee Bum Lee ◽  
Bum Jin Park ◽  
Shin Hyung Rhee ◽  
Jun Hong Bae ◽  
Kyung Won Lee ◽  
...  
Keyword(s):  
Natural Gas ◽  
Gas Flow ◽  
Liquefied Natural Gas ◽  
Containment System ◽  
Insulation Wall ◽  
Natural Gas Flow

Security-Constrained Optimal Power and Natural-Gas Flow

2014 ◽  
Vol 29 (4) ◽  
pp. 1780-1787 ◽  
Author(s):  
Carlos M. Correa-Posada ◽  
Pedro Sanchez-Martin
Keyword(s):  
Natural Gas ◽  
Gas Flow ◽  
Optimal Power ◽  
Natural Gas Flow
Sign in / Sign up

Export Citation Format

Share Document