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Abstract Industrial facilities typically have long lives and consume large amounts of energy year by year during their operations phase. Intervention in the design stage to independently review energy efficiency and the use of renewable energy inherent in the original design can identify opportunities that will offer significant benefits on a life cycle basis. The energy design review concept can be applied to any project for expansion or upgrade of an existing industrial plant or to Greenfield industrial projects. The approach is to carry out an independent cross functional review of the design for the new industrial facilities to identify opportunities to use energy more efficiently and/or use more renewable energy. These reviews should be carried out with the project team to identify opportunities that have reasonable incremental capital costs and have little or no impacts on safety, maintenance, reliability and operating flexibility of the future facility. On completion of the review, the prioritized opportunities would then be assessed as part of the corporate approval process for the design of the project and those ideas that are accepted would then be carried forward by the project team. In a recent energy design review assignment for a new oil sands processing plant, Hatch identified a number of opportunities which taken together could reduce the future facility's annual energy use by up to 40%. Energy design reviews can have a significant impact on industrial energy use and are applicable at each stage of project development from the conceptual level through to project implementation.
An optimization technique is used to investigate changes in structural design which will increase the energy-absorbing capabilities of a marine vessel during a low-speed collision. The idealized collision scenario is arigid, vertical bow striking a tanker at a right angle, midway between rigid bulkheads. Collision energy is most efficiently absorbed as membrane tension. A penalty function method is utilized to redesign a compartment of a large tanker for rupture resistance. Up to 130 percent increase of energy absorbed prior to rupture is obtained for optimal designs without increase in weight but with sacrifice of strength. Stronger, more conservative designs are investigated by restraining the parametric freedom. Trends for improving rupture resistance are presented.
- Government > Military (0.47)
- Energy > Oil & Gas (0.46)
Post-Evaluation and Analysis of Key Components Design of Tidal Current Energy Generation Devices of 500kW Ocean Energy Isolated Power System Demonstration Project
Li, Zhichuan (CNOOC Research Institute) | Yu, Ting (CNOOC Research Institute) | Wu, Yonghu (CNOOC Research Institute) | Yue, Juan (CNOOC Research Institute) | Zhang, Li (CNOOC Research Institute) | Xiao, Gang (CNOOC Research Institute) | Zhang, Liang (Harbin Engineering University) | Wang, Shujie (Ocean University of China)
ABSTRACT 500kW Ocean Energy Isolated Power System demonstration project is one of the first batch of projects funded by the National Marine Renewable Energy Special Fund. The 2 × 50kW gravity base support structure horizontal-axis tidal current energy generation device and the 2 × 100kW floating support structure horizontal-axis tidal current energy generation device have been researched, designed and constructed. The both devices have completed demonstration operation and project acceptance. The research and construction of the both devices have accumulated valuable experience for the design of tidal current energy generation device in China. The purpose of this paper is to post-evaluate and analyze the design of the both devices, and summarize the accumulated design experience. The space of improvement has been given finally through the analysis, which can provide design experience for the future development of China's tidal current energy. INTRODUCTION Since 2010, China has enhanced the support for marine energy research, and has established National Marine Renewable Energy Special Fund which is to support marine energy technology research and development, including industrialization and demonstration projects. 500kW ocean energy isolated power system demonstration project is one of the first batch of projects funded by the National Marine Renewable Energy Special Fund. The total installed gross capacity of this project is 500kW which includes 300kW tidal current energy. This project has completed the development and construction of the 2×50kW gravity base support structure horizontal-axis tidal current energy generation device and the 2×100kW floating support structure horizontal-axis tidal current energy generation device, completed the test run and has been accepted in 2015. Under the background of China's energy structure adjustment and the development of low carbon green, the ocean energy has been paid more and more attention (Fraenkel, P, 2006). From 2016, a series of regulations and policies have been introduced to vigorously support and encourage the development and utilization of marine technology. The National Development and Reform Commission (NDRC) and the State Energy Administration jointly issued the "Revolutionary innovation action plan for energy technology (2016–2030)" in April 2016 (PRC Central Government Website, 2016a), in this plan, it is clear that "Strengthen the development and utilization of Marine Energy, studying the high efficiency power generation equipment and building a megawatt demonstration power plant."; In June 2016, The National Development and Reform Commission(NDRC), the Ministry of industry and information technology and The National Energy Board issued the "China made 2025-Energy Equipment Implementation Plan", in the implementation of this scheme(PRC Central Government Website, 2016b), it has also clearly pointed out that "the development of megawatt power generation power generation equipment as the direction of technology attack";In January 2017, the State Oceanic Administration released the "Marine Renewable Energy Development Plan", in this plan, tidal energy was listed as the one of the most important marine renewable energy development key point during the 13 Five-Year (National Bureau of Oceanography, 2017).
Abstract Many Operating Companies (OPCOs) in the Middle-East petroleum industry are adopting the ISO 50001 standard for Energy Management. EPC Companies (EPCs) would be the ideal partner for the OPCOs to ensure energy management system requirements are implemented right from the design and construction stage of the facilities. Requirements for energy efficiency in design should be included from the FEED stage to ensure minimum schedule impact during the EPC stage. Provisions in contracts would ensure EPCs understand and take responsibility for achieving the target energy efficiency in the design. Other methods, such as performing energy audits, right sizing, settings for optimum energy efficient plant operations, measurement, monitoring and trending, etc., are other ways by which EPCs could further contribute towards attaining the objective of the OPCOs. All energy users considered in the energy management programme, such as compressed air usage, water consumption, waste generation, etc. could be optimized by the EPCs. It is important to get the design specifications for energy efficient systems implemented during the design and construction phase to reap maximum benefits from the energy efficient measures. This paper could be used as a basic foundation for the OPCOs and the EPCs to work towards a comprehensive strategy to deliver projects with energy management requirements being included inherently in the design and construction phases of the project.
ABSTRACT For the wave energy industry, the leap from R&D to commercial deployment remains considerable and arises as part of the ‘wave energy paradox’, defined here as a negative reinforcement cycle involving a lack of investment, deployment, learning and returns. In this context, we review performance metrics set by funding bodies, industry standards and developers, examining how existing practices can result in sub-optimal design targets due to current specifications and misalignment of metrics between developers and external stakeholders. This paper offers initial insights - via a case study - to demonstrate how the integration of meaningful and aligned metrics throughout the design process represents a key lever in overcoming the paradox. INTRODUCTION The vast potential of wave energy as a renewable source of power has been advocated for several decades (Isaacs & Seymour, 1973), (Cruz, 2008). Although nearshore wave energy potential has been estimated to be in the TW range, e.g. (Gunn & Stock-Williams, 2012), global deployed capacity as of 2017 was lagging at only 8MW (Ocean Energy Systems, 2017). Many observers argue that the shortfall is a result of the failure of wave energy converters (WECs) to converge to a single optimal design, though this can be viewed as both a cause and an effect (see following section). In 2016, O'Hagan et al. highlighted that "more than 50 types of WECs have been designed, but less than 20% have reached full-scale prototype stage" (O'Hagan, Huertas, O'Callaghan, & Greaves, 2016). Two notable (Edinburgh-based) projects that showed great promise, but ultimately failed to achieve commercialization, have been Pelamis and Aquamarine Power, which fell into administration in 2014 and 2015 respectively (The European Marine Energy Centre Ltd, 2015). Subsequently, Wave Energy Scotland (WES), a public funding body backed by the Scottish Government, purchased the know-how of these companies and set up a competitive procurement programme to streamline development of wave energy in several key technology areas. These events testify how, from a development perspective, "there is a clear need for research that outlines the pathway required to achieve LCOE and deployment goals" (de Andres, MacGillivray, Roberts, Guanche, & Jeffrey, 2017).
- North America > United States (1.00)
- Europe > United Kingdom > Scotland (0.25)
- Energy > Renewable > Ocean Energy (1.00)
- Government > Regional Government > North America Government > United States Government (0.46)