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Balanced Heave Compensation
Balanced heave compensation (BHC) is a heave compensation technology engaging the principle of a balanced-arm lamp for offshore Motion compensator, motion compensation. Working principle The technical working principle can be summarized as converting the non-linear force of a gas spring or Hydropneumatic device, hydro-pneumatic spring into an adjustable, substantially linear force, by several mechanical measures. The technology comprises a series of patented inventions by NHLO licensed to and marketed by Seaqualize. An active balanced heave compensation (ABHC) system adds an active component to a BHC for even further stabilisation of the mass. Research project In cooperation with IHC and research partners Maritime Research Institute Netherlands, MARIN and Energy Research Centre of the Netherlands, ECN, a scale model of a first device comprising the technology, an offshore access bridge has been tested. Seaqualize is currently working on a full-scale prototype of the access bri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heave Compensation
Heave compensation is motion compensator technology applied to minimizing the vertical movement of a load supported by lifting gear mounted on a Heave (translational motion), heaving platform. Techniques include active heave compensation and passive heave compensation—the two traditional types of heave compensation—as well as balanced heave compensation. Devices that perform heave compensation are known as heave compensators. Description Heave compensation is Motion compensator, move compensator technology used to minimize the movement of a load in one direction. This direction is often vertical, as for a load supported by lifting gear mounted on a Heave (translational motion), heaving platform. In offshore drilling, heave compensation is used to reduce the impact on the drill system from motions, including those of Wind wave, waves and the vessel. Types There are two traditional basic types of heave compensation are active heave compensation and passive heave compensatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maritime Research Institute Netherlands
MARIN, the Maritime Research Institute Netherlands, is the leading institute in the world for hydrodynamic research and maritime technology. The services incorporate a unique combination of simulation, model testing, full-scale measurements and training programmes. MARIN provides services to the shipbuilding and Offshore construction, offshore industry and governments. Customers include commercial ship builders, fleet owners, naval architects, classification societies, oil and LNG companies and navies all over the world. In the Netherlands MARIN has the status of Great Technological Institute, thus linking science and applied knowledge. Results from fundamental research are directly integrated in applications for clients. Over 85% of the turnover is realised by commercial projects for the international maritime industry. The remaining 15% is derived from scientific research. Offices MARIN’s head office is in Wageningen, with additional offices in Ede, Netherlands, Ede, Houston, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Heave Compensation
Active heave compensation (AHC) is a technique used on lifting equipment to reduce the influence of waves upon offshore operations. AHC differs from Passive Heave Compensation by having a control system that actively tries to compensate for any movement at a specific point, using power to gain accuracy. Principles The purpose of AHC is to keep a load, held by equipment on a moving vessel, motionless with regard to the seabed or another vessel. Commercial offshore cranes usually use a Motion reference unit (MRU) or pre-set measurement position detection to detect the current ship displacements and rotations in all directions. A control system, often PLC or computer based, then calculates how the active parts of the system are to react to the movement. The performance of an AHC system is normally limited by power, motor speed and torque, by measurement accuracy and delay, or by computing algorithms. Choice of control method, like using preset values or delayed signals, may affec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passive Heave Compensation
Passive heave compensation is a technique used to reduce the influence of waves upon lifting and drilling operations. A simple passive heave compensator (PHC) is a soft spring which utilizes spring isolation to reduce transmissibility to less than 1. PHC differs from AHC by not consuming external power. Principle The main principle in PHC is to store the energy from the external forces (waves) influencing the system and dissipate them or reapply them later. Shock absorbers or drill string compensators are simple forms of PHC, so simple that they are normally named heave compensators, while "passive" is used about more sophisticated hydraulic or mechanical systems. A typical PHC device consists of a hydraulic cylinder and a gas accumulator. When the piston rod extends it will reduce the total gas volume and hence compress the gas that in turn increases the pressure acting upon the piston. The compression ratio is low to ensure low stiffness. A well designed PHC device can ach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cost Saving
Cost reduction is the process used by organisations aiming to reduce their costs and increase their profits, or to accommodate reduced income. Depending on a company’s services or products, the strategies can vary. Every decision in the product development process affects cost: design is typically considered to account for 70–80% of the final cost of a project such as an engineering project or the construction of a building. In the public sector, cost reduction programs can be used where income is reduced or to reduce debt levels. Importance Companies typically launch a new product without focusing too much on cost. Cost becomes more important when competition increases and PRICE becomes a differentiator in the market. The importance of cost reduction in relation to other strategic business goals is often debated. Examples of cost reduction strategies and programmes Commercial businesses Consultants Deloitte reported in 2006 that over three-quarters of the FTSE 100 listed co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renewable Energy
Renewable energy (also called green energy) is energy made from renewable resource, renewable natural resources that are replenished on a human lifetime, human timescale. The most widely used renewable energy types are solar energy, wind power, and hydropower. Bioenergy and geothermal power are also significant in some countries. Some also consider Nuclear power proposed as renewable energy, nuclear power a renewable power source, although this is controversial, as nuclear energy requires mining uranium, a nonrenewable resource. Renewable energy installations can be large or small and are suited for both urban and rural areas. Renewable energy is often deployed together with further electrification. This has several benefits: electricity can heat pump, move heat and Electric vehicle, vehicles efficiently and is clean at the point of consumption. Variable renewable energy sources are those that have a fluctuating nature, such as wind power and solar power. In contrast, ''contro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dutch Ministry Of Economic Affairs
The Ministry of Economic Affairs (; EZ) is the Netherlands' ministry responsible for international trade, commercial, industrial, investment, technology, space policy, as well as tourism. The Ministry was created in 1905 as the Ministry of Agriculture, Industry and Commerce and has had several name changes before it became the Ministry of Economic Affairs in 1946. In 2010 the Ministry of Agriculture, Nature and Food Quality was merged with the Ministry of Economic Affairs, which was renamed as the Ministry of Economic Affairs, Agriculture and Innovation. In 2012 the name was reverted as the Ministry of Economic Affairs but kept the responsibilities of the former Ministry of Agriculture. In 2017, the Ministry of Agriculture, Nature and Food Quality was reinstated but the Ministry of Economic Affairs took on several of the environmental policies portfolios from the Ministry of Infrastructure and the Environment, which was renamed Ministry of Infrastructure and Water Management ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Research Centre Of The Netherlands
The Energy Research Centre of the Netherlands (ECN) is one of the largest energy research institute in Europe and holds a strong international position. With and for the market, ECN develops knowledge and technology that enable a transition to a sustainable energy system. The main office is located in Petten. ECN also has offices in Amsterdam, Eindhoven, Wieringermeer, Brussels and China. ECN has a staff of about 550 employees. As of April 1, 2018, the Energy Research Centre of the Netherlands (ECN) has joined forces with the Netherlands Organisation for Applied Scientific Research (Netherlands Organisation for Applied Scientific Research, TNO) and is nowECN part of TNO, Our aim is to accelerate the energy transition in The Netherlands and beyond. From January 2020, the name 'ECN part of TNO' will be replaced by TNO Energy Transition, announced officially on October 10, 2019. Activities ECN's research and technology development focuses on: * Solar Energy * Wind Energy * Biomass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
