Temperature and pressure variations have important significance in environmental protection and safety operation of oil reservoir in salt caverns. Shrinkage of salt caverns, effect of permeability and fluid thermal pressurization rate were discussed…
As the size of motors being manufactured increases, the issue of motor cooling becomes more and more critical. The high ambient temperature and the severe corrosive environment of many locations in the Chemical, Oil & Gas (COG) industry, in addition…
Natural gas releases 45–50% less CO2 emissions as compared with coal and the liquefaction process is employed for storage and transport of liquefied natural gas that is an energy-intensive process. Numerous scientific efforts are being directed to…
District cooling systems (DCSs) are networks able to distribute thermal energy, usually as chilled water, from a central source to industrial, commercial, and residential consumers, to be used for space cooling/dehumidification. As cooling demand…
Transportation of waxy crude oil confronts many difficulties due to the formation of gel in the production pipelines, which interrupts the steady production with low transportation efficiency and this later requires a higher pumping pressure to…
In summer, the coastal areas of southern Iran suffer from the freshwater shortage and electricity instability. Meanwhile, this region benefits from the high intensity of solar radiation and the huge potential of brackish water resources. Hence, this…
Being dependent statistics, building energy consumption has accounted for 2/5 of the world's total energy consumption. The combination of phase change energy storage materials with floor radiant cooling and heating system has become one of the main…
Migration and distribution of gas mixtures of hydrogen generated in severe accidents are related to thermal hydraulic behavior of the containment, which is a key issue for safety analysis. A series of experiments are conducted on a large-scale test…
Dual-mixed refrigerant (DMR) process is a promising candidate for liquefying the natural gas (LNG) at onshore as well as offshore sites, thanks to its higher liquefaction capacity and flexibility in using full gas turbines. DMR involves two mixed…
Scrubber operations were studied using the Flow Vision software system, which made it possible to obtain a picture of the distribution of velocity, temperature, and pressure fields of the flue gas inside the scrubber, and estimate the operation of…
By means of additional specific heat capacity and momentum source terms methods, the physical and mathematical models of the heat transfer process of waxy crude oil during its static cooling in the vault tank are established. Through the numerical…
BXY field is the largest gas field of India, located in offshore, 80 km from Mumbai city. The field produces about 32.5 MMscmd sour gas using two process complexes BXA & BXB. The field was put on production in September'1988 with initial gas…
The purpose of this attempt is mainly to investigate the thermal characteristics of waxy crude oil under periodic external temperature and to explore the extent of its impact. Additional specific heat capacity and momentum source terms methods are…
The article present. The issue of heat integration of material and energy flows is considered, and the ultimate goal is to reduce the consumed energy resources. For this, a mathematical model of the process is drawn up. All endothermic and exothermic…
Petlyuk column is complex unconventional column that employed distributed distillation method through thermally coupled technique which minimizes the lost work due mixing and recycling of fluids within a column[1]. Conventional distillation operation…
This paper analyzes technological process of the main fractionator, and takes improvement of product quality as the control target. The control algorithm based on chain system is brought forward. Two major factors which affect quality of the crude…
This study proposes an optimized model of a micro-energy network (MEN) that includes electricity and natural gas with integrated solar, wind, and energy storage systems (ESSs). The proposed model is based on energy hubs (EHs) and it aims to minimize…
Due to the close coupling between subsystems and complex energy flow, the distributed energy system is different from the traditional power grid in terms of optimal operation. Therefore, it is necessary to study the optimal operation strategy of…
The energy crisis and increasing concerns about the environment in modern society have fostered the development of the integrated energy system (IES) in smart grid. The energy hub (EH) is a minimum construction of the IES. The chief purpose of this…
Aiming at the optimization of an integrated energy system in a certain area, an efficient utilization system of flue gas waste heat in a combined cycle unit of coupled flue gas waste heat system, natural gas heating system, chemical water heating…
Fire propagation in hydrocarbon storage tank farms is a critical safety issue in oil industries. This is an intriguing topic due to its severe impact on environment, economy, and more importantly on human lives. Contradictions in standards and codes…
The study is devoted to various structures of the temperature control loop in the outlet pipe of the cooling unit. The control loop structures are built on the basis of the well-known mathematical model of the condenser. The results of the…
Natural gas releases 45–50% less CO2 emissions as compared with coal and the liquefaction process is employed for storage and transport of liquefied natural gas that is an energy-intensive process. Numerous scientific efforts are being directed to…
The purpose of this attempt is mainly to investigate the thermal characteristics of waxy crude oil under different physical properties and to explore their quantitative relationship, which is a promotion to the accurate temperature prediction,…
Transportation of waxy crude oil confronts many difficulties due to the formation of gel in the production pipelines, which interrupts the steady production with low transportation efficiency and this later requires a higher pumping pressure to…
With the purpose of revealing the inner link between the thermal characteristics and geometry of tank, the physical and mathematical models of waxy crude oil during static cooling process under different geometric sizes are established. Based on the…
The purpose of this attempt is mainly to investigate the thermal characteristics of waxy crude oil under periodic external temperature and to explore the extent of its impact. Additional specific heat capacity and momentum source terms methods are…
A method of modernization of existing adjustable speed drives is discussed in this paper. It provides the philosophy and the decision making tools needed on performing a drive upgrade to installed old drives, from a drive manufacture's perspective.…
Over the years, there has been a significant evolution in power semiconductor devices from small low-power devices to very high capacity semiconductor devices. As a result, multimegawatt-range adjustable-speed drive (ASD) systems are gaining…
Direct Electric Heating (DEH) was first utilised by Statoil in the 1990's as an alternative subsea Hydrate mitigation measure. Since then the application of DEH has been expanded to a number of projects predominantly around the North Sea. The Shah…
Compressors of all forms, types and sizes are the workhorses of the oil & gas industry. Historically, the petrochemical industry has been dominated by mechanical prime movers like gas turbines, steam turbines, and diesel engines for multi-megawatt…
Over the years, there has been a significant evolution in power semiconductor devices from small, low power devices to very high capacity semiconductor devices. As a result, multi-megawatt range adjustable speed drive systems are gaining acceptance…
DCN CHERBOURG, the French submarine builder, has a great deal of experience in underwater equipment. The company also has experience in thermoelectric technology which is used in submarines for cooling systems. In light of this experience, DCN…
This paper is intended as a guide on the relative effects of loading, service factor and temperature on the expected insulation life of electric motors. Most refinery, pipeline and chemical plant operators are not motor or insulation designers
Directly coupled converter-fed electric motors for oil & gas applications, especially for pipeline and process compressors, have become more common in recent years due to increased efficiency and precise process control. The pipeline industry is…
Compared with the separate power (SP) system used in the traditional regional integrated energy system (RIES), the emerging composite energy pipeline (CEP) has a low energy transmission loss rate and a high energy comprehensive utilization…
Using micro-digital-imaging instrument and OLYCIA Series P3 software to acquire and handle crude oil's micro-pictures, it was aimed to research the microscopic characteristics of wax crystal in Nanyang crude oil under various treating conditions,…
The concept of ecology can be extended to the urban infrastructure as well when the infrastructure components are not analyzed individually but as an interlinked system, which then can be termed as `infrastructure ecology'. Urban infrastructure can…
Petlyuk column is complex unconventional column that employed distributed distillation method through thermally coupled technique which minimizes the lost work due mixing and recycling of fluids within a column[1]. Conventional distillation operation…
This paper analyzes technological process of the main fractionator, and takes improvement of product quality as the control target. The control algorithm based on chain system is brought forward. Two major factors which affect quality of the crude…
Energy plants represent large energy consumers with a wide array of energy needs, assets (e.g. boilers, chillers, storage, on-site generation), and constraints on operations. An innovative energy management system for energy plants is presented in…
Due to the close coupling between subsystems and complex energy flow, the distributed energy system is different from the traditional power grid in terms of optimal operation. Therefore, it is necessary to study the optimal operation strategy of…
The energy crisis and increasing concerns about the environment in modern society have fostered the development of the integrated energy system (IES) in smart grid. The energy hub (EH) is a minimum construction of the IES. The chief purpose of this…
This paper presents optimization of CCHP system on their design and operation in the integrated energy planning for an urban district of an Economic&Technological Development Zone in Hangzhou City. This district planning aims to establish a…
This study is focused on the optimization of the annual cost and greenhouse impact related to the supply of natural gas and electricity of an urban microgrid through the installation of components as renewable energy sources, energy storage units and…
Along with the rapid development of regional energy internet and increasingly coupling relation of multiple energies, the paper proposed an optimal operation model of multi-energy microgrid considering uncertainties. In this paper, time-of-use price,…
Gas District Cooling (GDC) provides electricity and chilled water to facilities with relatively low running cost and has the potential to reduce CO2 emission as it can make effective use of wasted energy. However, the present CO2 emission tends to be…
The authors proposed and investigated a novel self-refrigerated auto air conditioning system for Liquefied Natural Gas (LNG) fuelled trucks. The cold energy in cryogenic fuel, LNG, was drawn and reused to cool the driver's cab. After theoretical…
A power distribution feeder where a heterogeneous set of distributed energy resources is deployed is examined by simulation. The resources include PV, battery storage, natural gas genset and fuel cells, and active thermal storage for commercial…
Energy Hub (EH) is the transceiver of various forms of energy through a system of energy conversion, distribution and storage devices. The structure and components of the model are selected mainly based on the characteristics and needs of the load.…