Hydrodynamic analysis on semi-submersible playform

As the population increases exponentially and demand for inexpensive energy sources continue to raise, exploration and production for fossil fuel is rapidly growing. In order to meet the demands, the exploration has taken one step further to the extreme deep sea. Floating production platform design is a far more efficient and economical rather that fixed production platform at this depth

Enhanced Oil Recovery Field Development: Process Flow of EOR Selection for Sandstone Formation

At present, the world-wide production statistics indicate that the average ultimate recovery from light and medium gravity oils by conventional (primary/secondary) methods is around 25-35% of the Oil Initially in Place (OIIP), while from heavy oil deposits on the average, only 10% OIIP is recoverable. Hence, this lead to a substantial percentage of oil in place left unrecoverable by the conventional methods. The research for tomorrow's oil reserves has directed the efforts of the energy industry to frontiers beyond the conventional exploration and production strategies. Frontier defined not by geography or geology but rather by technology. This frontier is a collection of technologies that involve the use of thermal, gas and chemical means for producing more oil that fall under the broad umbrella called Enhanced Oil Recovery (EOR). The results of successful application of this new technology will have a decisive impact on the energy conservation program of any oil producing country. Developing technologies for enhanced oil recovery (EOR) from existing oil fields would supply the world’s energy needs for several decades. The application of EOR in many major oil-producing countries remains in its conceptual stage. Every oil reservoir has a unique ionic environment that changes naturally and by human intervention, which makes it difficult to identify recovery mechanism(s) in EOR methods. This study updates the EOR selection criteria and presents new EOR screening tools based on dataset distribution, incremental recovery and deterministic modeling. This project presents a methodology for the selection of the enhanced oil recovery technologies that better applies to some group of fields using screening criteria. The methodology will be integrated into a process flow in order to make repetitive analysis in an easier way. The methodology incorporates oil and rock properties and the reservoir current conditions, besides the specific knowledge of the reservoir generalities and histor

Effect of storage temperature and storage duration on biodiesel properties and characteristics

Biodiesel based on vegetable oils offer the advantage being a sustainable and environmentally attractive alternative to conventional petroleum based fuel. Biodiesel is produced from any fat or oil such as soybean oil, through a refinery process called transesterification. The key issue in using vegetable oil-based fuels is oxidation stability, stoichiometric point, bio-fuel composition, antioxidants on the degradation and much oxygen with comparing to diesel gas oil. Biodiesel can be used as a pure fuel or blended with petroleum in any percentage but the standard storage and handling procedures used for biodiesel are the main issue due to the biodiesel fuel specifications. In the quest for fulfill the industry specifications standard; the fuel should be stored in a clean, dry and dark environment. In this research, three different storage temperature were study which are; low (0 – 5 °C), ambient, and high (40 – 50 °C). The key parameters that are required to store biodiesel are discussed, and the recent research advances are noted. Five types of biodiesel after storage all the samples for 2016 hours were tested plus with two product of combustion. Images analysis for combustion process was used to image appearances analysis. Under 2016 hours of storage duration, the effect of degradation was happen although the effect is not significance because the changes are still in acceptable ranges

ROLE OF TECHNOLOGICAL REVOLUTION IN TRANSPORT AND COMMUNICATIONS DEVELOPMENT

The arousal of technology has changed a lot of aspects in human life and has drastically changed its path through a revolution that changed the whole world. This revolution took place in various aspects while affecting significantly the global economy and from those fields that considerably affect the life of human beings in the previous and current centuries are Information and Communication Technology (ICT) and transportation. It is these two factors that play a major role in the economy of countries and dominate the lives of societies in the world. Thus, this paper studies the impact of the technology revolution on communication and transportation while demonstrating the significance of these two factors and their interrelation as well that resulted from this technology revolution. It tackles the Information and Communication Technology as a crucial outcome of the technological revolution and its effect in its turn on Transportation and the influence both aspects have on individuals. This paper tends to show the relation between the development that Technology caused and the performance of individual’s life. It is quite interesting to study this relation in our life to see this relation that Technology has created in aspects like ICT and Transportation to examine how such a development improved the life of human beings

Integrating vocational training in culinary arts and Islamic studies at juvenile rehabilitation centres: Malaysian experience

The Juvenile Rehabilitation Centres (JRC) in Malaysia aims to provide shelter, counselling and skills training to juveniles specifically for those who wish to transform themselves from the regrettable misdeeds they have committed. At JRCs, an integrated Culinary Vocational Training and Islamic education forms part of their training curriculum. The skills acquired should enable trainees to secure jobs upon completion of training. However, there are some training institutions that lack systematic training structures resulting in trainees becoming less skilful in both vocational and Islamic education. The objective of this research is to identify the effectiveness of an integrated Culinary and Islamic Education curriculum implemented at JRCs in Malaysia. This is a descriptive survey and data was obtained using questionnaire and interview. Respondents comprised 92 trainees, four managers, four culinary trainers and four Islamic education teachers, all from four different JRCs. The findings show that the trainees are happy with their trainings that brought about positive effects for them. Some suggestions have been made to provide improvements in the implementation of the course among them the inclusion of prayers in the Islamic education syllabus

The Design of Mechanisms for Gantry Crane Experimental Rig

This report discusses the background and current research done on the chosen topic, which is design of mechanisms for gantry crane experimental rig. The objective of the project is to come up with a design of mechanisms to drive the gantry cranes motions for an experimental crane rig. The scope of study focused on proposing a design of mechanism for the gantry crane designed for Mechanical Engineering Department of Universiti Teknologi PETRONAS based on the limitation of the gantry frame dimension. Gantry cranes are widely used in shipping terminals to handle freight containers. Advances in controlling the crane load sway has been achieved by conducting experiments in laboratory. However, the problem is the Mechanical Department of Universiti Teknologi PETRONAS does not have the gantry crane test rig for experimental purpose. Technique that is going to be used is proposing design of mechanism for the gantry crane by performing analysis on the crane operations. Justification on fundamentals that determine the gantry frame structural rigidity and flexibility due to the load is also being studied. This technique integrates the critical parameters that affect the performance of the driving mechanisms of the gantry crane. The parameters are being identified and manipulated in order to achieve the best driving mechanism. AutoCAD and ANSYS will be used in modeling and analyzing the gantry crane test rig. A gantry crane test rig will be constructed to perform an experiment to test the validity of the model. An enhanced mechanism of gantry cranes operations is essential for further research work, especially on the development of an automatic crane controller

Phase transitions in the Shastry-Sutherland lattice

Two recently developed theoretical approaches are applied to the Shastry-Sutherland lattice, varying the ratio $J'/J$ between the couplings on the square lattice and on the oblique bonds. A self-consistent perturbation, starting from either Ising or plaquette bond singlets, supports the existence of an intermediate phase between the dimer phase and the Ising phase. This existence is confirmed by the results of a renormalized excitonic method. This method, which satisfactorily reproduces the singlet triplet gap in the dimer phase, confirms the existence of a gapped phase in the interval $0.66<J'/J<0.86$Comment: Submited for publication in Phys. Rev.

Risk-Based Inspection – Flyash Erosion on Boiler Tube at Coal-Fired Power Plant

This study intends to propose a more relevant approach to quantify consequence of failure when steam, a nonflammable and nontoxic fluid is evaluated with flyash erosion as damage mechanism. The paper also explains the difficulties of applying API 581 RBI Consequence Analysis and explained on the comparison results between API 581 RBI Consequence Analysis approach with the proposed approach. The assessment would involve Semi-Quantitative Analysis comprising of Technical Module Sub-factor (TMSF) for likelihood of failure and Business Interruption Cost for consequence of failure using real plant data

Antecedents and consequences of corporate communication management (CCM): an agenda for future research

Purpose This paper aims to provide a degree of clarity on the corporate communication management (CCM) concept, by building a conceptual framework that uncovers its underlying antecedents and consequences. Although it is consolidated that corporate communication and information together plays an important role in strategic management planning due to the high relevance of managing positive relationships with multiple stakeholder that have a strong impact on corporate survival, extant literature suggests that there have been few empirical studies so far assessing the contribution of CCM to organisational performance. Design/methodology/approach The paper is conceptual and a model is developed as a result of an extensive critical multidisciplinary literature review. Findings Findings of this study identify three antecedents of CCM, namely culture, information and communication technology (ICT) innovation diffusion and corporate leadership. In addition, the study highlights a potential positive relationship between CCM, financial performance and corporate mission achievement. An integrative conceptual framework and a detailed summary table are presented in the paper. Originality/value This study provides a comprehensive critical insight into a growing body of corporate communication and information business literature that offers the basis for a thorough assessment of CCM contribution to organisational performance. By doing so, it advances the body of applicable knowledge of corporate communication meant as a strategic management lever. Moreover, the managerial and policy implications provided in this paper may help corporate communication and information practitioners to identify the key guidelines for the design and implementation of an appropriate CCM program