Scientists find a more effective way to produce hydrogen from organic waste
Although most people think of electric vehicles when considering zero-emission driving, vehicles powered by hydrogen fuel cells are another option, but the challenge now is hydrogen fuel infrastructure and hydrogen production. Scientists at Tokyo Institute of Technology have discovered a new technology that uses rust and light to accelerate organic waste solutions to produce hydrogen.
Researchers believe that this discovery may bring revolutionary changes to the clean energy industry. New research shows that under the same light, α-FeOOH rust and Hg-Xe lamp irradiation can become a more effective hydrogen production catalyst than titanium dioxide, and the efficiency is increased by 25 times. In this process, a key problem that must be solved is to prevent the reconnection of hydrogen and oxygen. Once hydrogen is produced, the reconnection constitutes a potential danger. The research team was surprised to use rust as a catalyst to produce hydrogen. According to one researcher, most iron oxides do not reduce hydrogen.
The team found that α-FeOOH is activated by oxygen, which is another surprising phenomenon, because previous studies have shown that oxygen inhibits the production of hydrogen by capturing excited electrons. In the test, light and rust combined in the process to produce stable hydrogen for more than 400 hours. The team intends to continue to study the process, the specific process of oxygen activation of α-FeOOH is still unknown. The team's next challenge is to explore this mechanism. It is hoped that this perfect process will help achieve zero emissions through sustainable energy.
Elevator modernization (or lift modernisation) is the process of upgrading the critical parts of the elevator in order for it to be able to handle new technology, have better performance, improve safety, and even give the aesthetics an up-to-date appeal
Most elevators are built to provide about 20 years of service, as long as service intervals specified and periodic maintenance/inspections by the manufacturer are followed. As the elevator ages and equipment become increasingly difficult to find or replace, along with code changes and deteriorating ride performance, a complete overhaul of the elevator may be suggested to the building owners.
A typical modernization consists of controller equipment, electrical wiring and buttons, position indicators and direction arrows, hoist machines and motors (including door operators), and sometimes door hanger tracks. Rarely are car slings, rails, or other heavy structures changed. The cost of an elevator modernization can range greatly depending on which type of equipment is to be installed.
Modernization can greatly improve operational reliability by replacing mechanical relays and contacts with solid-state electronics. Ride quality can be improved by replacing motor-generator-based drive designs with Variable-Voltage, Variable Frequency (VVVF) drives, providing near-seamless acceleration and deceleration. Passenger safety is also improved by updating systems and equipment to conform to current codes.
Components needs to be replaced in different elevator modernization plan
| Component | Scheme of elevator modernization plan | |||
|---|---|---|---|---|
| Refurbishment work | Partial modernization | Full modernization | Full replacement | |
| Elevator car | ||||
| Sling | No | No | by building owners | Yes |
| Door operator | No | by building owners | Yes | Yes |
| Cab design | by building owners | by building owners | Yes | Yes |
| Car doors | by building owners | by building owners | Yes | Yes |
| Car fixtures | Yes | by building owners | Yes | Yes |
| Wedges connected to the governor | No | No | Yes | Yes |
| Additional phone/intercom if they don't equipped | by building owners | Yes | Yes | Yes |
| Traveling cable | No | Yes | Yes | Yes |
| Hydraulic rams | No | No | No | Yes |
| Wire ropes | No | by building owners | Yes | Yes |
| Shaft | ||||
| Counterweight | No | No | No | Yes |
| Guide rails | No | No | No | Yes |
| Buffers | No | No | Yes | Yes |
| Electrical components | No | No | No | Yes |
| Tapehead | No | Yes | Yes | Yes |
| Limit switches | No | Yes | Yes | Yes |
| Wiring | No | Yes | Yes | Yes |
| Compensations | No | No | No | Yes |
| Lobby | ||||
| Shaft door components | by building owners | by building owners | Yes | Yes |
| Shaft doors | by building owners | by building owners | by building owners | Yes |
| Hall fixtures | Yes | by building owners | Yes | Yes |
| Machine room | ||||
| Machines | No | by building owners | Yes | Yes |
| Controllers | No | Yes | Yes | Yes |
| Removal of the selector | by building owners | Yes | Yes | Yes |
| Overspeed governor | No | No | Yes | Yes |
| Additional unintended car movement protection device if they don't equipped | by building owners | by elevator safety code in countries | ||
| Backup battery or uninterruptible power supply | No | Yes | Yes | Yes |
Benefits of elevator modernization
Modernization can greatly improve operational reliability by replacing mechanical relays and contacts with solid-state electronics. Ride quality can be improved by replacing motor-generator-based drive designs with Variable-Voltage, Variable Frequency (VVVF) drives, providing near-seamless acceleration and deceleration. Passenger safety is also improved by updating systems and equipment (such as double brake system, unintended car movement protection device on the brake system etc.) to conform to current codes.
With CEP traction elevator modernization, we use the existing elevator structure while upgrading the ride quality and reliability with state-of-the-art components. Upgrade to a CEP closed loop door operator or a sophisticated, energy saving VVVF inverter.
CEP traction elevator modernization can include:
- CEP Microprocessor Based Control System
- CEP Microprocessor Based Efficient Dispatch System
- Energy Efficient AC Drives or SCR Drives on Existing AC Gearless Machines
- Traction Machines (Geared / Gearless)
- Rope Brake System
- CEP Closed Loop Door Operating System
- Car & Hall Pushbutton Fixtures & Indicators
- Car & Counterweight Roller Guides
- Seismic Upgrades
- Security Upgrades
- Cab Interior Renovations or Cab Replacement
NOTE: Complete tear-out modernizations are available.
Contact us TODAY for Right Modernization Package Available
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Elevator Modernization,Lift Modernisation,Passenger Lift Modernization,Passenger Elevator Modernization
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