A Holistic Approach Utilizing Simple, Reliable and Cost-Effective Axial Friction Reduction System in Improving the Drilling Efficiency and Cost Optimization in the Directional Sections

2018 ◽  
Author(s):  
Zeina Abdelhaq ◽  
Ji Fei ◽  
Jiandong Wu ◽  
Miao Yan ◽  
Chen Yufeng
Keyword(s):  
Cost Optimization ◽  
Holistic Approach ◽  
Cost Effective ◽  
Friction Reduction ◽  
Reduction System

The cost competitiveness, competitiveness and sustainability of the hospitality industry in India

2016 ◽  
Vol 8 (4) ◽  
pp. 432-443 ◽  
Author(s):  
Madhu Vij
Keyword(s):  
Hospitality Industry ◽  
Cost Optimization ◽  
Cost Effective ◽  
Comprehensive Treatment ◽  
Global Level ◽  
Content Type ◽  
Present Context ◽  
Cost Competitiveness ◽  
Internal Operations ◽  
The Cost

Purpose This study aims to provide a comprehensive treatment of the various issues surrounding the concept of the cost competitiveness, competitiveness and sustainability of the hospitality industry. We also investigate how innovations in the Indian hospitality industry can optimize costs without compromising the quality of the product or the services offered. Design/methodology/approach The methodology used is mainly survey-based with the use of both structured and unstructured questionnaires. In addition, some interviews were conducted with policy-makers and academics to explore from their perspectives what might be the innovations and sustainability issues in the next decade. Findings The paper helps to identify the essential aspects of cost competitiveness, competitiveness and sustainability in the hospitality industry and to better understand if cost optimization can be accomplished simply by realigning process or cost. These issues have become very important in India in the present context of globalization. Practical implications With growing competition on a global level, the hospitality industry needs to proactively manage its internal operations and focus on reducing costs and raising service quality. In this context, the paper helps to reveal sustainable cost effective practices that are geared to today’s competitive environment. Originality/value The inspiration to write this paper arises from the recent global economic slowdown and the fact that the hospitality industry is confronted with growing competition on a global level. This study highlights how value can be created for customers by applying suitable strategies.

Tantawan Sludge Management: Holistic Approach Introducing New Practices

2021 ◽  
Author(s):  
Woraphat Pongpitukkul ◽  
Thotsaphon Chaianansutcharit ◽  
Suppakit Learduchasai ◽  
Thunyarak Suankaew ◽  
Satiraporn Sirisampan
Keyword(s):  
Waste Management ◽  
Joint Venture ◽  
Effective Means ◽  
Holistic Approach ◽  
Cost Effective ◽  
Oil And Gas Industry ◽  
Lessons Learned ◽  
Management Policy ◽  
Arsenic Content ◽  
Sludge Management

Abstract Following Tantawan field suspension of production, considerable volume of contaminated crude (high level of mercury and arsenic content) remains on board in Tantawan FPSO. These volumes are deemed as waste hydrocarbon sludge that hold no commercial value and must be urgently removed from the vessel as per safety requirements to maintain the vessel class and certification, according to Tantawan FPSO integrity condition. After review of many alternatives, offshore subsurface disposal initiative is the safest and most cost-effective means for disposal. Since subsurface disposal of such waste, highly mercury and arsenic contaminated crude, has never been performed in the Gulf of Thailand, several aspects need to be considered from technical and environmental perspective and public sector concerns. A cross functional team of Reservoir Engineer, Geologist, Facilities Engineer, Health and Safety, Policy, Government and Public Affair and commercial advisor, has co-devised a holistic waste management plan to inject waste into Tantawan reservoirs after obtaining required approvals by the government. Many challenges including limitation of the FPSO pumping system, sludge properties and seasonal increment weather, were encountered during the execution phase and many remedial actions were taken to mitigate their impact. Cross functional team initiatives on heater installation, adjusting injection procedure, and additional disposal well approval helped address project challenges. Entire volume of sludge was safely injected to subsurface reservoirs with cost effective operation. The success of this offshore injection process has reduced the cost to less than 10% compared to onshore disposal option to asset joint venture. The results set a new standard for Thailand petroleum waste management policy. Following this success, decommissioning of all remaining of Tantawan field are progressing as scheduled. This paper will outline the holistic approach of hydrocarbon sludge management process including the subsurface injection identifcation, stakeholder engagement, environmental impact assessment and execution challenges. Lessons learned from this paper would help other offshore operators to effectively manage hydrocarbon sludge, which demonstrate how the oil and gas industry plays a vital role in protecting the environment.

The Performance Study of Air-Friction Reduction System for Hydraulic Retarder

2014 ◽  
Author(s):  
Can Wang ◽  
Gangfeng Tan ◽  
Bo Yang ◽  
Ming Chen ◽  
Fudong Wei ◽  
...  
Keyword(s):  
Friction Reduction ◽  
Performance Study ◽  
Reduction System ◽  
Hydraulic Retarder

scholarly journals Frequency Stability and Economic Operation of Transactive Multi-Microgrid Systems with Variable Interconnection Configurations

Energies ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2485
Author(s):  
Maximiliano Lainfiesta ◽  
Xuewei Zhang
Keyword(s):  
Control Strategies ◽  
Cost Optimization ◽  
Cost Effective ◽  
Frequency Stability ◽  
Operating Conditions ◽  
Control Element ◽  
Robust Controller ◽  
Utility Grid ◽  
Trading Mechanisms ◽  
System Frequency

With the progressive addition of microgrids at the distribution level, complex networks of interconnected microgrids and the utility grid are likely to emerge. In such a scenario, advanced microgrid controllers are required to achieve operational stability objectives while maintaining a cost-effective operation. This paper investigates the control strategies, trading mechanisms, and interconnection configurations of a multi-microgrid and utility grid system for frequency stability analysis and operational cost optimization. The analysis is performed on a model of two interconnected microgrids and the utility grid, all possible interconnection configurations are tested. A robust controller is designed and the control parameters are later optimized to ensure that the frequency stability of the system is maintained under normal operating conditions and under various disturbances. A new control element based on switching between interconnection configurations is introduced to handle the power that flows between microgrids, aiming to minimize inter-microgrid energy trading cost while maintaining the system frequency fluctuations within tolerance levels. The effectiveness of the designed controller is demonstrated in this work. This work is expected to provide new insights in the field of multi-microgrid system design.

Southern Water faces the small works challenge

2000 ◽  
Vol 41 (1) ◽  
pp. 33-39 ◽  
Author(s):  
I. Rowland ◽  
R. Strongman
Keyword(s):  
Holistic Approach ◽  
Cost Effective ◽  
Small Communities ◽  
Effluent Quality ◽  
Design Standard ◽  
Operational Costs ◽  
Effective Operation ◽  
A Company ◽  
Structured Approach ◽  
Whole Life Cost

Southern Water (a ScottishPower company) has 392 wastewater treatment works, 242 of which serve small communities with populations of less than 2000. Continuing pressures to improve effluent quality coupled with expectations of improved efficiency, and increased demand for resources for major capital schemes prompted Southern Water to take a more holistic approach to improvements and operation of its small treatment works. Operational costs (OPEX) were analysed for individual works enabling identification of target costs of operation (£/pe), opportunities for efficiency savings and investment priorities. A Company approach to investment in small works was produced which included development of a model to identify whether rationalisation (diverting the flows to an adjacent WTW and closing the site) was an economic option, and a Design Standard to simplify decision-making and process engineering for works refurbishment or replacement. The Design Standard focused on delivering low “whole-life-cost” solutions using simple and robust processes that require minimal operator involvement and ensure compliance with discharge consent standards. Southern Water is steadily reaping the benefits from its structured approach to ensuring compliance and cost-effective operation of its small works.

Manufacturing Considerations in the Initial Design Process

2016 ◽  
Author(s):  
Mark R. Anderson ◽  
Peter L. Klein
Keyword(s):  
Design Process ◽  
Manufacturing Process ◽  
Holistic Approach ◽  
Cost Effective ◽  
Quantitative Information ◽  
Aerodynamic Performance ◽  
Cnc Machining ◽  
Initial Design ◽  
Basic Understanding ◽  
Stress Levels

Many factors come into play in a successful turbomachinery design, but peak aerodynamic performance, maximum operating range, stress levels, and manufacturability are generally the dominant concerns. Depending on the application, other considerations such as acoustics, size, weight, and environmental issues can also come into the picture. The most effective designers take a holistic approach, which tries to incorporate all of these concerns at the beginning of the design process. One of the challenges facing aerodynamicists is a basic understanding of how these downstream issues can be accommodated in the initial design process. Typically, an aerodynamic engineer has minimal knowledge of manufacturing methods such as 5-axis machining. This paper will provide a basic understanding of the subsequent manufacturing impact of various decisions typically made during the preliminary and detailed aerodynamic design process. The paper will focus on radial turbomachinery, but much of the information provided is common for axial turbomachinery produced by 5-axis Computer Numerical Controlled (CNC) machining. In the initial phase of the design, basic layout decisions generally dictate the overarching manufacturing process. For components produced with 5-axis machining, these would typically be: flank milled or point milled, open or covered impeller, and for covered impellers, integral or welded shroud. The relative costs of these processes are considered in this work along with first-order estimates of their typical impact on aerodynamic performance and stress levels. Once a general layout (and accompanying manufacturing process) is determined, other geometric parameters of the components drive secondary costs in the manufacturing process. The secondary parameters include main blade count, the presence of splitter blades, the blade length, thickness, curvatures, leading and trailing edge shapes, and fillet radii. The use of Computational Fluid Dynamics (CFD) and numerical optimization has driven even more choices into blade shapes, such as splitter blades with different shapes and offsets from the main blade, bowed blades, irregular blade patterns, and non-axisymmetric hub shapes. In many cases, the aerodynamicists and CFD analysts have pushed geometry further than manufacturing capabilities are ready to accept. These secondary costs, and the aerodynamic compromises needed to reduce them, are also considered here. This paper attempts to lay out the basic principles of cost-effective manufacturing, and how these can be considered as early in the design process as possible. Specific examples are considered, and quantitative information is provided which can help guide the designer from the beginning and avoid expensive reworks resulting from downstream revisions. This paper will provide a framework for collaboration between aerodynamic engineers and the manufacturing teams assigned to produce the parts they have designed.

scholarly journals Towards an Automatic Parameter-Tuning Framework for Cost Optimization on Video Encoding Cloud

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Xiaowei Li ◽  
Yi Cui ◽  
Yuan Xue
Keyword(s):  
Service Provider ◽  
Cost Optimization ◽  
Cost Effective ◽  
Parameter Tuning ◽  
Resource Consumption ◽  
Video Encoding ◽  
Digital Videos ◽  
Parameter Configuration ◽  
The One ◽  
Automatic Parameter Tuning

The emergence of cloud encoding services facilitates many content owners, such as the online video vendors, to transcode their digital videos without infrastructure setup. Such service provider charges the customers only based on their resource consumption. For both the service provider and customers, lowering the resource consumption while maintaining the quality is valuable and desirable. Thus, to choose a cost-effective encoding parameter, configuration is essential and challenging due to the tradeoff between bitrate, encoding speed, and resulting quality. In this paper, we explore the feasibility of an automatic parameter-tuning framework, based on which the above objective can be achieved. We introduce a simple service model, which combines the bitrate and encoding speed into a single value: encoding cost. Then, we conduct an empirical study to examine the relationship between the encoding cost and various parameter settings. Our experiment is based on the one-pass Constant Rate Factor method in x264, which can achieve relatively stable perceptive quality, and we vary each parameter we choose to observe how the encoding cost changes. The experiment results show that the tested parameters can be independently tuned to minimize the encoding cost, which makes the automatic parameter-tuning framework feasible and promising for optimizing the cost on video encoding cloud.

Standard Terms Incorporation in The Global Market: A Holistic Analysis

2019 ◽  
Vol 15 (3) ◽  
pp. 280-296
Author(s):  
Vincenzo Viglione
Keyword(s):  
Holistic Approach ◽  
Cost Effective ◽  
Global Market ◽  
International Model ◽  
Holistic Analysis ◽  
Standard Terms ◽  
Theoretical Issues

Abstract Corporations operate in the global market by employing standard terms to govern their dealings in a uniform and protective manner. Because of differences among jurisdictions, incorporating standard terms can be problematic, especially if companies decide to adopt a cost-effective holistic approach for a high number of their everyday dealings instead of fragmenting their policy. This paper first examines theoretical issues related to the incorporation of standard terms. It then assesses and compares methods of incorporation developed in practice to identify the ‘Legally Advisable Solution’. These methods are also tested in the main jurisdictions. In conclusion, an international model for the incorporation of standard terms is proposed.

scholarly journals Infrared Thermography Investigation of Heat Transfer on Outlet Guide Vanes in a Turbine Rear Structure

2020 ◽  
Vol 5 (3) ◽  
pp. 23
Author(s):  
Isak Jonsson ◽  
Valery Chernoray ◽  
Radheesh Dhanasegaran
Keyword(s):  
Heat Transfer ◽  
Infrared Thermography ◽  
Guide Vane ◽  
Holistic Approach ◽  
Cost Effective ◽  
Accurate Method ◽  
Measurement Procedure ◽  
Primary Sources ◽  
Error Mitigation ◽  
Recent Method

Aerothermal heat transfer measurements in fluid dynamics have a relatively high acceptance of uncertainty due to the intricate nature of the experiments. The large velocity and pressure gradients present in turbomachinery application add further complexity to the measurement procedure. Recent method and manufacturing development has addressed some of the primary sources of uncertainty in these heat transfer measurements. However, new methods have so far not been applied in a holistic approach for heat transfer studies. This gap is bridged in the present study where a cost-effective and highly accurate method for heat transfer measurements is implemented, utilising infrared thermography technique (IRT) for surface temperature measurement. Novel heat transfer results are obtained for the turbine rear sturcture (TRS), at engine representative conditions for three different outlet guide vane (OGV) blade loading and at Reynolds Number of 235000. In addition to that, an extensive description of the implementation and error mitigation is presented.

Sign in / Sign up

Export Citation Format

Share Document