Although it has abundant oil reserves, there have been energy waste problems in recent years. Therefore, the Saudi government advocates energy conservation and sustainable development, and encourages public and private projects to adopt energy-saving LED systems. Faced with the huge prospects of the Saudi LED market, Philips Lighting has partnered with Saudi Arabian companies to achieve scale-up business expansion in the Saudi market.
According to the report of the Saudi Gazette on March 25th, GeneralLighting (GLC) is the leader in the Saudi lighting industry. On Tuesday (25th), the company announced an agreement with Philips Lighting, the global leader in the lighting industry, to establish a joint venture in Saudi Arabia.
The joint venture will provide a full range of LED lighting solutions, while at the same time consolidating GeneralLighting's original position in the Saudi market. GeneralLighting will achieve market growth with sustainable technologies in line with the Saudi government's energy efficiency goals. At the same time, with the help of Philips' LED expertise and global supply chain advantages, GeneralLighting will continue to increase its market expansion capabilities.
The joint venture will provide LED products, systems and services to the entire lighting market, as well as specializing in the production and distribution of LED lighting fixtures. It is expected that the joint venture will employ 1,300 people, which will further promote regional economic development and help Saudi Arabia achieve its vision of strengthening local manufacturing.
Driven by large-scale construction markets, government and private energy-efficient lighting projects, the Saudi lighting market is expected to grow steadily during 20142018.
Today, GeneralLighting is a leader in the Saudi lighting market with six comprehensive production projects, distribution systems and retail channels, with revenues of 1.2 billion rials in 2013.
Eric Rondolat, CEO of Philips Lighting, said: With the cooperation of GeneralLighting, Philips' business in Saudi Arabia will grow rapidly. Driven by public-private infrastructure construction, we expect local LED usage to achieve double-digit growth in 2018.
Under the investment agreement, Philips will acquire 51 shares of GeneralLighting from a joint group.
EHAs eliminate the need for separate hydraulic pumps and tubing, simplifying system architectures and improving safety and reliability. This technology originally was developed for the aerospace industry but has since expanded into many other industries where hydraulic power is commonly used.
The primary development that lead to the possibility of EHAs was the precision feedback controlled conventional motor, or high-power stepper motor[citation needed].[3] Stepper motors are designed to move a fixed angle with every application of energy, and do so repeatedly in an extremely precise fashion. Both types of motor drives have been in use for years, powering the controls on motion control rigs and numeric control machine tools for instance.
With an EHA, high-power versions of these motors are used to drive a reversible pump, which is tied to a Hydraulic Cylinder. The pump pressurizes a working fluid, typically hydraulic oil, directly raising the pressure in the cylinder, and causing it to move. The entire system, consisting of the pump, the cylinder and a reservoir of hydraulic fluid, is packaged into a single self-contained unit.
Instead of the energy needed to move the controls being supplied by an external hydraulic supply, it is supplied over normal electrical wiring, albeit larger wiring than what would be found in a fly-by-wire system. The speed of the motion is controlled through the use of pulse-code modulation. The result is a "power-by-wire" system, where both the control and energy are sent through a single set of wires.[4]
Redundancy can thus be provided by using two such units per surface, and two sets of electrical wires. This is far simpler than the corresponding systems using an external hydraulic supply. Additionally, the EHA has the advantage that it only draws power when it is being moved, the pressure is maintained internally when the motor stops. This can reduce power use on the aircraft by eliminating the constant draw of the hydraulic pumps. EHAs also reduce weight, allow better streamlining due to reduced internal routing of piping, and lower overall weight of the control system.[5]
EHAs, EHA, Electro-Hydrostatic actuators for any integrated hydraulic control system
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