Results 21 to 30 of about 89,874 (359)

Novel approach for modeling a full-sized air-cooled heat exchanger using porous media and iterative processes

open access: yesResults in Engineering, 2023
Air-Cooled Heat Exchangers (ACHE) have gained importance through their extensive use in the oil and gas industry. Many researchers studied ACHE extensively and proposed analysis methods. Most of them investigate part of the ACHE in their modeling. Others
Younus M. Younus   +2 more
doaj  

Does the Chinese government engage in online public debates? A case study of political communications around the building of an oil refinery in Kunming, China [PDF]

open access: yes, 2018
This article discusses how the Chinese government engages in online political debates and whether it adjusts its policies to respond to public concerns raised in such debates.
Wang, Qingning
core   +1 more source

Investigation of Stress-Oriented Hydrogen-Induced Cracking (SOHIC) in an Amine Absorber Column of an Oil Refinery

open access: yesMetals, 2018
Stress-oriented hydrogen-induced cracking (SOHIC) of an amine absorber column made of a Hydrogen Induced Cracking (HIC) resistant steel and operating under wet H2S service was investigated.
Gregory N. Haidemenopoulos   +6 more
doaj   +1 more source

Investigation of physical and chemical parameters of the raw hydrocarbon material base of Kaliningrad region for the concept development of an oil refinery

open access: yesChimica Techno Acta, 2022
The article analyzes the factors that determine the necessity of oil refinery construction in the Kaliningrad region of the Russian Federation. The assessment of the existing and prospective raw material base is performed. The data for the development of
Pavel Shcherban   +4 more
doaj   +1 more source

A Credibility Approach on Fuzzy Slacks Based Measure (SBM) DEA Model [PDF]

open access: yes, 2021
Data Envelopment Analysis (DEA) is a multi-criteria technique based on linear programming to deal with many real-life problems, mostly in nonprofit organizations. The slacks-based measure (SBM) model is one of the DEA model used to assess the relative efficiencies of decision-making units (DMUs).
arxiv   +1 more source

Analysis and Optimization of Shale Oil Refinery Wastewater Treatment Process [PDF]

open access: yesE3S Web of Conferences, 2021
Shale oil refinery wastewater was a kind of industrial wastewater with many types of organic matter and complex water quality. It contains a large amount of pollutants such as phenols, ammonia and oil, which is extremely harmful to the environment.
Yuting Fu   +5 more
doaj   +1 more source

Possibility of Replacing the Chorinated Paraffins in Metalworking Fluids [PDF]

open access: yesTribology in Industry, 2013
All components that are used for neat oil formulations for metalworking operations belong to group of chemicals that, because of its direct application, can have a big influence on the environment and especially on human health.
M. Dugić   +3 more
doaj  

Forecasting the production of Distillate Fuel Oil Refinery and Propane Blender net production by using Time Series Algorithms [PDF]

open access: yesarXiv, 2022
Oil production forecasting is an important step in controlling the cost-effect and monitoring the functioning of petroleum reservoirs. As a result, oil production forecasting makes it easier for reservoir engineers to develop feasible projects, which helps to avoid risky investments and achieve long-term growth.
arxiv  

Modelling and Simulation of Perturb and Observe MPPT Algorithm Based on The PI Controller for Photovoltaic System

open access: yesKurdistan Journal of Applied Research, 2022
The most popular type of renewable energy is photovoltaic (PV) because it is a sustainable source and environmentally friendly. The power generated by a PV system varies with changes in ambient conditions such as temperature and sun ...
Ahlam Mohamad Shakoor, Hersh Hasan Taha
doaj   +1 more source

Analysis of Persistence and Long-term Trends of Efficiency in Iran's Oil Refineries using a Window Analysis Method [PDF]

open access: yesفصلنامه پژوهش‌های اقتصادی ایران, 2020
This study, by using data envelopment window analysis method examines the efficiency of 9 Iran’s oil refinery over the period of 2008-2013. Results of the study has shown that, during the period of study, only Kermanshah refinery was efficient in four ...
Azam Ashourzadeh   +2 more
doaj   +1 more source

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