Researchers develop new method to remove dust on solar panels

21-2-researchersd

Taking a cue from the self-cleaning properties of the lotus leaf, researchers at Ben-Gurion University of the Negev have shed new light on microscopic forces and mechanisms that can be optimized to remove dust from solar panels to maintain efficiency and light absorption. The new technique removed 98 percent of dust particles.

In a new study published in Langmuir, the researchers confirmed that modifying the surface properties of solar panels may greatly reduce the amount of dust remaining on the surface, and significantly increase the potential of solar energy harvesting applications in the desert.

Dust adhesion on solar panels is a major challenge to energy harvesting through photovoltaic cells and solar thermal collectors. New solutions are necessary to maintain maximum collection efficiency in high dust density areas such as the Negev desert in Israel.

“In nature, we observe that the lotus leaf remains dust and pathogen free due to its nanotextured surface, and a thin wax, hydrophobic coating that repels water,” says Tabea Heckenthaler, a master’s student from Düsseldorf Germany at the BGU Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research. “In the desert, dust accumulates on the surface of solar cells and it’s labor-intensive to clean them constantly, so we’re trying to mimic this behavior on a solar cell.”

The researchers explored the effect of modifying a silicon substrate (Si), a semiconductor used in photovoltaic cells, to mimic the self-cleaning properties of the lotus leaf, as water rolls down the leaves and removes contamination.

It is known that superhydrophobicity reduces the friction between water droplets and the surface, thus allowing water drops to slide clean particles from surfaces. However, the forces that attach and detach particles from surfaces during the self-cleaning mechanism and the effect of nanotextures on these forces are not fully understood.

To shed light on these forces and the effect of nanotexture on them, the researchers prepared four silicon-based samples relevant to solar panels: (1) smooth hydrophillic (2) nanotextured hydrophilic surfaces and (3) smooth hydrophobic (4) nanotextured hydrophobic surfaces. This was achieved by wet-chemically etching the surface to create nanowires on the surface, and additionally applying a hydrophobic coating.

Particle removal increased from 41 percent on hydrophilic smooth Si wafers to 98 percent on superhydrophobic Si-based nanotextured surfaces. The researchers confirmed these results by measuring the adhesion of a micron-sized particle to the flat and nanotextured substrate using an atomic force microscope. They found that the adhesion in water is reduced by a factor of 30.

“We determined that the reason for the increased particle removal is not low friction between the droplets and the superhydrophobic surfaces,” Heckenthaler says. “Rather, it is the increase in the forces that can detach particles from the surfaces. The experimental methods we used and the criterion for particle removal we derived can be implemented to engineer self-cleaning surfaces exhibiting different chemistries and/or textures.”

 

Source: Phys.org

Israeli ‘rubber band’ solution could reduce plastic bottle waste by 80%

A French-Israeli entrepreneur believes that recycling challenges posed by large quantities of plastic bottles could be significantly ameliorated with a rubber band.

plastic bottle recycling solution.jpg

It is often said that necessity is the mother of invention, but what about simplicity?

According to the Ellen MacArthur Foundation, there could be more plastic than fish (by weight) in the ocean by 2050, if current plastic disposal trends continue. In fact, only 14% of the world’s masses of plastic packaging materials is collected for recycling.

One French-Israeli serial entrepreneur, however, believes that recycling challenges posed by large quantities of plastic bottles could be significantly ameliorated with a solution based on the addition of a rubber band.

On Monday, Morris Amsellem, the CEO of waste solution company Ecoams Planet, unveiled Bakbuk: a simple solution to crush plastic bottles and make recycling easier for consumers and beverage manufacturers alike.

Key to the uncomplicated solution is a biodegradable rubber band strapped around a particular part of the bottle, which assists consumers to easily fold up their empty bottle and reduce its volume by 80%.

Reducing the volume, Amsellem says, will enable eager recyclers to save space and reduce the frequency required to deposit waste in the recycling bin or travel to the refuse center.

The rubber band solution, which already boasts patents in 14 countries, can be implemented on any type of original PET plastic bottles, including those used by the world’s leading beverage makers. Patent applications have been filed in 58 countries worldwide to date, led by Israeli patent and trademark firm Ehrlich & Fenster.

“Bakbuk is bringing a revolution in all phases of recycling: for the consumer it is simple and efficient to use, reduces the frequency of throwing [bottles] into the recycling bin by a factor of five, and provides a tremendous ecological response to catastrophic plastic pollution worldwide,” said Amsellem.

“In addition, for the recycling company, it reduces the number of journeys to recycling sites, reduces transportation and compression costs, and generally increases efficiency and productivity. For the beverage companies, it provides solutions for sustainable development, a ‘circular economy’ solution and a solution that is relevant to customers.”

The company is currently in talks to include its solution in bottles sold by major beverage manufacturers, and thereby bring the innovation directly to consumers’ households. Amsellem’s efforts are advanced by a positive entrepreneurial track record, including the $21 million sale of a simple plant watering system in 2006 to a public French company.

According to a US survey conducted for Ecoams Planet by Ipsos, 91% of consumers said that a solution reducing the volume of large drinking bottles by 75-80% was an important innovation. A total of 69% said they would be willing to spend at least one cent extra on a shrinkable plastic drinking bottle, including 12% who said they would be willing to spend more than five cents extra on such a product.

Recommended PET bottle recycling machinery:

app_16.jpg

ACERETECH ACS-H TM series compacting and pelletizing system combines function of crushing, compacting, plasticization and pelletizing to One step. Applied in the plastics recyclng and pelletizing process. ACS-H TM system is a reliable and efficiency solution for plastics film, raffias, filaments, bags, woven bags and foaming materials re-pelletizing.

 

Source: The Jerusalem Post

Global Toolholders Market Will Top US$ 1 Billion By 2019

Global Tool Holders Market Revenue

Global demand for toolholders, specifically arising from the automotive and defense and aerospace industries, will witness a relatively steady growth through 2028, as predicted by Future Market Insights (FMI) in its recently released market intelligence report.

 

While the demand for toolholders will be largely driven by emerging economies, in particular the manufacturing sector, China is likely to make substantial investments in high-performance cutting tools, considering the robust manufacturing and industrial output in the region.

 

In other developing countries such as Philippines and Bangladesh, the positive scenario and policies, infrastructure and steps that are being taken to promote business, especially the manufacturing sector, will have a positive impact on the toolholders market offering huge opportunities for investors.

 

As per the report, the global toolholders market will top US$ 1 billion by 2019. Moreover, growing demand for high-precision products with increased output capacity is propelling the demand for advance toolholders in the global market, opines FMI.

 

Key Market Insights at a Glance:

  • The demand for toolholders is anticipated to grow at a moderate pace over the forecast period.
  • Asia Pacific is estimated to hold a prominent share of the global toolholders market.
  • Initiatives by regional governments are likely to encourage the movement of low-cost manufacturing towards parts of South-East Asia, thereby creating healthy growth prospects create healthy growth opportunities in Asia Pacific region.
  • China will remain the largest consumer of machine tools, followed by U.S.
  • The toolholders market is consolidated with Tier 1 players accounting for significant shares.
  • The top three players of the market are estimated to account for more than a 50% market share.
  • On the basis of types of toolholder, hydraulic toolholders segment is slated to remain a high-value, high-growth segment.
  • In terms of end-use, general machining and fabrication and the automotive industries are likely to push maximum revenue into the toolholders market. The two end-use industries are estimated to collectively account for around 47% value share in the global toolholders market.
  • BT flange taper will remain the most preferred taper type among CNC end users, in terms of volume and value, given its high degree of accuracy and precision, in any high-speed machining operations.

 

Laser Cutting Technologies Could Restrict Toolholders Sales

 

Laser cutting, a streamlined and precision manufacturing process, is likely to pose challenges for toolholders given its ability to not just cut materials but also apply finish to a product. Apart from lower risks of material deformation or warping, because there is no direct contact between the material and the laser cutting device, chances of incorrect markings and contamination further reduces. Although laser cutting could be technically challenging and costly, end-use industries demanding high cutting precision such as automotive, are projected to replace traditional tool cutting equipment. However, high market penetration of relatively low cost toolholders may restrict the demand for new and more advanced toolholders despite their high accuracy and ease of handling.

 

Article Source: Machinery Future

Luju, Best Stainless Steel Hardware Manufacturer for Marine and Building Industry

If you are looking for the quality and reasonable-priced stainless steel hardware, Luju will be your best choice!

Luju Enterprise Co., Ltd

Established in 1991, Luju Enterprise Co., Ltd. was with extensive experience in hardware industry. They specialized in stainless steel hardware for both industrial & marine applications, and their products are shipped to USA, Latin America, Europe and Asia.

 

Applications of Luju Products

Luju can provide the following stainless steel hardware and services:

 

  • In Marine Industry

Luju manufactures friction hinges, cleats, vents, latches…etc. They are able to provide nearly every stainless steel spare parts used on the boat with corrosion resistant finish.

 

  • In Building Industry

Luju produces including glass hardware, door handle, shower hardware, and much more hardware. Also, they can make hardware with many kinds of materials according to customer’s request. For example, zinc alloy and brass for building industry.

 

Strength of Luju Stainless Steel Hardware Company

 

Patents

Based on strong design and manufacturing ability, nearly all stainless steel hardware is designed by Luju engineering team and they have got worldwide patents for many of the products.

 

R&D

  • Luju products are made by various production processes, including casting, hot-forging, cold-forging and stamping. Luju has capability to customize special machine based on the requirements of products.
  • Luju created corrosion resistant finish to stainless steel.
  • The electro polishing process not only gives stainless steel a mirror-like finish but also extremely corrosion resistant.
  • The titanium plating is using the most advanced technology which enables them to offer a wide range of stainless steel finish with various colors.

 

Luju Enterprise Co., Ltd. is in stainless steel industry for more than 20 years, they are well-experienced in sourcing the suppliers who has high quality with competitive price to customers. They mainly supply these products to Asian and Middle East countries regularly.

 

Today, if you have requirement of extensive range of high quality stainless steel products with special finish, no hesitation, send inquiries or contact with Luju for more details!

 

Luju Enterprise Co., Ltd.

2 FL, No 11-3, Lane 69, TianMu E. Rd., Shilin Dist, Taipei City 11153, Taiwan (R.O.C.)

Tel: 886-2-2872-1118

Fax: 886-2-2872-6220

Mobile: 886-(0)920-214-979 / 886-(0)978-659-078

E-mail: sales@lujultd.com

Contact Person: Ms. Julianne Huang / Mr. Paul Huang

Start A Paper Plate, Bowl, and Cup Making Business, I Need…?

Paper plates, paper bowls, and paper cups are disposable made out of paper and lined with wax or plastic to prevent liquid from soaking the paper. These paper containers are made using food grade paper, which is hygienic and capable of storing both, hot or cold liquid for long times.

 

Since these items are lightweight and can be easily disposed of, they are very convenient to be carried to any place for serving food items. Moreover, these containers are available in a wide range of designs and sizes to meet the needs and preferences of consumers.

 

With the rising awareness of Eco-friendly and rapidly changing lifestyles, the demand for paper plates, paper bowls, and paper cup has increased tremendously year on year.

 

Before Starting Your Paper Plate Making Business…

To start a paper plate business, you will need high quality and efficiency paper tray making machines. And where can you find the best paper box making machine manufacturer? Here, I will recommend you to visit Win Shine Machinery Co., Ltd.

 

Win Shine is a professional paper food packaging containers making machines manufacturer in Taiwan. They develop and customize a series of lunch box making machines to meet your requirement of paper food containers.

 

Below, there are some samples manufactured by Win Shine paper bowl forming machine:

 

2-Mold Pater Plate, Bowl Forming Machine

WS-3301 / WS-3302 / WS-3303

Food Containers Making Machine

If you have interest or have requirement of paper bowl making machines, no hesitation, check out Win Shine website or contact them at +886-4-2515-4999 for more details!

 

Win Shine Machinery Co., Ltd.

No.208, Sec. 1, Guofeng Rd., Shengang Dist., Taichung City, 42942,Taiwan

TEL: +886-4-2515-4999

FAX: +886-4-2525-0111

E-mail: winshine.taiwan1990@gmail.com

 

Article Source: Quora

Guide of Access Controller: What is ESD Access Control System?

Pongee ESD Access Control System

What is ESD Access Control System?

ESD access control system, anti-static access channel, stand-alone systems (integrated human static test access channel gate) is a combination of static test ban control gate and channel advanced products.

 

In many settings electrostatic protection areas (EPA) in places where static footwear and static wrist strap testing are based on the traditional way of testing only be, difficult to implement untested first time by personnel prohibited from entering the case of the EPA. ESD access control system for this shortcoming, direct and effective solution to the problem, workers entering the EPA zone really good staff wear or anti-static wrist strap shoes ready, combine three roller gates, wing gates, swing gates, automatic door sensors, etc.

 

As electronic locks or access gates ESD anti-static test personnel access control equipment. Plant personnel can provide basic access control functions and static test ways and orderly civilization, did not enter the EPA to eliminate electrostatic protection areas by electrostatic testers, and rapid control off the rod or gate, organize evacuations in case of emergency.

 

Looking for Best ESD Controllers? Don’t Miss Pongee!

Taiwan famous and professional access control system manufacturer, Pongee Industries Co., Ltd. also provides excellent ESD access control system.

 

The advanced Pongee ESD ACS system is integrated with ESD Tester, contactless Access system and ESD Management Application software together. During the past time, many EPA (Electrostatic protection Area) control for the electrostatic shoes, wrist strap are almost tested then recorded manually so easy to make mistakes, this not only wastes time but not easy to audit.

 

The Pongee ESD ACS system is managed by PC to make sure the person to test the ESD resistance value before entering EPA area, record the access time and control the turnstile or release alarm to reject illegal access. Also, with the failsafe function of the turnstile or electrical locks in emergency to secure the personal life.

 

Features of Pongee ESD Controller

  • The system is mainly consisted of ESD tester, ESD access controller, management software, communicators and the electrical gate controller (turnstile, strike or power bolt).
  • ESD permission has 8 options as checking Left and (or) Right hand and (or) the feet combination and the qualified impedance value range.
  • The ESD tester PP-6750V/ESD provide permission level setting, inquiry, alarm function, test and record the PASS or NG judgment.
  • The Access Controller equipped with LCD screen for taking the action, display the card & staff number, calendar year and date, clock, testing data and the error message.
  • The access controller could control the intelligent gating devices such as Turnstile, swing gate or plate gate. Also, it could control the electric locks such as power bolt, magnetic lock or strikes. The user also could push the exit button to go out.
  • The ESD ACS can be integrated with Time attendance module; it can provide the ESD ACS access events served as Time Attendance data base to make many HR reports.

 

Main Application Fields

ESD access control system are used for SMT production line, clean room such as semiconductor fab, high tech RD room, or military ESD sensitive areas, explosive processing areas, maintain or calibration areas for aerospace industries, pharmacy , bio-chemical and hospital ESD restraint areas.

 

If you have requirement or more information of ESD access control system, no hesitation, come and visit Pongee Industries Co., Ltd. for more details of access control system.

 

Pongee Industries Co., Ltd.

5F., No.738, Chung-Cheng Rd., Chung-Ho District, New Taipei City 23511, Taiwan

TEL: +886-2-8228-0198

FAX: +886-2-8228-0191

E-mail: pongee@pongee.com.tw

Sharp-Eyed Precision Parts: High-Tech Precision OEM Machining Technology Boosting Sales Worldwide

Expert of OEM Machining Parts

For years of business, Sharp-Eyed Precision Parts Co., Ltd. has become the largest precision parts and surface treatment OEM in Taiwan. It provides brass nuts, clinching nuts, CNC machined parts, forging parts and surface treatment, and supplies to various automotive OEMs and other industries including bike, shipbuilding, medical, tool, and electronics.

 

Application Fields of Sharp-Eyed Products: Automobile, Ship, Medical, Electronics

Sharp-Eyed’s automotive fasteners are mainly supplied to clients in Germany, Japan, China (Shenzhen), and Taiwan. For the domestic market, it offers automotive fasteners as well as bike fasteners, ship fasteners, medical fasteners and electronics fasteners.

 

By integrating product design and R&D, it has earned the trust from the market. One of its clients is the world’s largest American bike components maker. Besides, it has become Taiwan’s largest core components supplier for smart watch.

 

Precision Parts Offering & Tech-driven Value-add Service

Sharp-Eyed is equipped with excellent sliding-head and turning-milling machines with processing precision ranging from 5µ to 10µ. It can produce customized parts of various special geometric tolerances according to clients’ requirement on the drawings.

 

Sharp-Eyed insists on delivering only the best to their customers. They truly know that “Quality is the starting point of value and respect.” In order to assure product quality, they established the Reliability Laboratory to execute all kinds of tests. Customer’s trust reflects Sharp-Eyed’s worth. If you have requirement of OEM machining services, let Sharp-Eyed’s service become your best memorable lifetime choice.

 

Sharp-Eyed Precision Parts Co, Ltd.

No.8, Tianxin St., Daya Dist., Taichung City 42874, Taiwan

Tel: 886-4-2565-8080

Fax: 886-4-2567-9458

E-mail: sales@sharpeye.com.tw