• The Implementation of Green Supply Chain Management

     · power supply, print circuit board and monitor. Also, several stakeholders in EOL electronic parts used computer stores (2nd hand markets), waste collectors (called SaLeng), disassembly/recycle plants, and final treatment/landfill company are involved. Most of them comply with WEEE and

  • Small Tactical Electric PowerEnergy

     · ARMY GOALS / OBJECTIVES GoalTo establish a new family of tactical electric, soldier portable, signature suppressed power systems in the Watt range • That enable direct power and hybrid, silent watch, and battery

  • Power Stationan overview ScienceDirect Topics

    Power station transformers use copper windings almost exclusively and the detailed requirements for them are set down in BS1432[3]. During the late 1960s, there was a very sharp rise in the price of copper and some manufacturers attempted some experimental use of aluminium, but its higher resistivity greatly complicates the designer's problems.

  • Copper Facts

     · Copper Facts Copper the Metal Copper Fact 1. Copper is a mineral and an element essential to our everyday lives. It is a major industrial metal because of its high ductility, malleability, thermal and electrical conductivity and resistance to corrosion.

  • Comparative Study on Power Module Architectures for

     · The demand for better power modules is further fueled by climate change, as EV/HEV are poised to replace existing technologies in heavy fossil-fuel consumption sectors such as transportation. The Department of Energy (DOE) has been one of the major drivers for energy consumption reduction as well as development of low carbon emission technologies.

  • Study on low-temperature pyrolysis of large-size printed

     · It has been proven that pyrolysis is a possible way to dispose of waste PCBs, in which the organic resin is converted to flammable gases and tar, which is then used as fuel for the process itself. The fiberglass and metals then remain as residue of the pyrolytic reaction . The advantage of pyrolysis is that different components in PCB can be separated safely and all the useful materials can be reclaimed.

  • Processes in informal end-processing of e-waste generated

     · The informal end-processing/recycling of desktop personal computer waste includes Printed Circuit Board treatment, metal recycling (ferrous metal, aluminum and copper) and plastic recycling. Each recycling process has been described that consists of inputs and outputs and the data on the quantity of inputs (scrap, energy, water and other materials) and outputs (final products and waste streams).

  • Recycling of Printed Circuit Boards IntechOpen

     · 1. Introduction. Printed circuit boards (PCBs) can be found in any piece of electrical or electronic equipment nearly all electronic items, including calculators and remote control units, contain large circuit boards an increasing number of white goods, as washing machines contains circuit boards for example in electronic timers.

  • OSModelling of discharges from Baltic Sea shipping

    Abstract. This paper describes the new developments of the Ship Traffic Emission Assessment Model (STEAM) which enable the modelling of pollutant discharges to water from ships. These include nutrients from black/grey water discharges as well as from food waste. Further, the modelling of contaminants in ballast, black, grey and scrubber water, bilge discharges, and stern tube oil leaks are

  • Electronic Fuel InjectionJag-lovers

    Electronic Fuel Injection . If you wish to understand or troubleshoot the Jaguar XJ-S electronic fuel injection system, it is highly recommended that you obtain a copy of "Understanding Electronic Fuel Injection, Ignition and Engine Management" by Roger Bywater and available from AJ6 Engineering. The book is written as a primer on EFI in

  • Challenges and opportunities in the recovery of gold

    electronic waste is dependent on the age of the device the thickness of gold contacts halved from ca. 1.0 mm in devices manufactured in the 1980s to 0.6–0.3 mm for those made in the 2000's.11 Pre-separation treatment of e-waste The processing of e-waste typically begins with a manually intensive dismantling phase, during which circuit-board

  • Valorization of Printed Circuit Boards from Waste

     · In recent decades, brominated flame retardants have been added to printed circuit board plastics to reduce their flammability, however, many of these additives are now considered to be toxic and this has made the processing of the plastics fraction of printed circuit boards waste problematic.

  • Evaluation of a recycling process for printed circuit

     · Glass fibers were selectively pulverized by stamping treatment and about 110 kg/t of copper foil was liberated from PCB, carbonized at 1073 K. Copper grade was increased from 10% to 15% by flotation for char powder carbonized at 1073 K with size less than 0.5 mm and 80% of the copper recovery was obtained under the following conditions particle size under 75 μm, 5 kg/t of NaHS, 10

  • Hybrid Triboelectric Nanogenerators From Energy

    Energy collection ways using solar energy, wave, wind, or mechanical energy have attracted widespread attention for small self-powered electronic devices with low power consumption, such as sensors, wearable devices, electronic skin, and implantable devices. Among them, triboelectric nanogenerator (TENG) operated by coupling effect of triboelectrification and electrostatic induction has

  • Firework Control Module 22 Steps (with Pictures

    A few years ago I came across a firework control module built by Instructables user systemf92. His module was a great design and I knew that I would one day have to build something similar because it combined two things that I really enjoy Electronics and Blowing Stuff Up on Independence Day.Well, a few years passed and I finally decided it was time to build one of my own.

  • Challenges and opportunities in the recovery of gold from

     · The processing of e-waste typically begins with a manually intensive dismantling phase, during which circuit-board components and the lithium battery are removed for recycling elsewhere . The PCBs are subsequently graded according to their metal plastic ratio and shredded, typically into 1.0 cm 2 pieces. The shredded PCBs need to be separated

  • Closed-Loop Recycling of Copper from Waste Printed Circuit

     · This work is targeting copper, the most abundant metal in e-waste that represents up to 20% by weight of printed circuit boards (PCBs). In the first stage, bioleaching was tested for different pulp densities (0.25–1.00% w/v) and successfully used to extract multiple metals from PCBs using the acidophilic bacterium, Acidithiobacillus ferrooxidans.

  • A cost-effective strategy for metal recovery from waste

     · 1. Introduction. More than 50 million tons of e-wastes generate annually worldwide (Holden, 2006).Waste printed circuit boards (WPCBs), as one of the most rapidly growing e-wastes, account for about 4% of the total amount of e-wastes (Richter et al., 1997).The composition of WPCBs from different sources is almost the same.

  • Electronic Fuel InjectionJag-lovers

    Experience in a Book Electronic Fuel Injection . If you wish to understand or troubleshoot the Jaguar XJ-S electronic fuel injection system, it is highly recommended that you obtain a copy of "Understanding Electronic Fuel Injection, Ignition and Engine Management" by Roger

  • Electronic Fuel InjectionJag-lovers

    Electronic Fuel Injection . If you wish to understand or troubleshoot the Jaguar XJ-S electronic fuel injection system, it is highly recommended that you obtain a copy of "Understanding Electronic Fuel Injection, Ignition and Engine Management" by Roger Bywater and available from AJ6 Engineering. The book is written as a primer on EFI in

  • XJ-S ElectricalJag-lovers

    I was able to repair by soldering tinned copper wire to the flexible circuit board tracks being careful not to melt the plastic flexible board and fashioning the wire into circular washers to go under the terminal nuts thus establishing good contacts again. Gauges now work as designed. Radio Removal. Steve Broady, regarding the late-1980's radio

  • Circuits and Relaysclub

     · [Tip from JohnB] I had a similar problem with the plastic/copper circuit board below the steering wheel on my Saab. So I sanded the copper circuit and placed about 5-6 strands of copper from some 12-gauge multi-strand twisted together and flattened onto the copper on the plastic and using a 350w Weller soldering gun and electronic rosin core

  • Leaching Assessments of Hazardous Materials in Cellular

     · Protocols for assessing the risks of discarded electronic products (e-waste) vary across jurisdictions, complicating the tasks of manufacturers and regulators. We compared the Federal Toxicity Characteristic Leaching Procedure (TCLP), California's Waste Extraction Test (WET), and the Total Threshold Limit Concentration (TTLC) on 34 phones to evaluate the consistency of hazardous waste

  • Design Considerations for Thermal Management of Power

     · Hence, knowing the efficiency of a given power supply design and the required output power we can calculate this power loss, or power that must be dissipated as heat, as Power Dissipated = Power Output x [ (1/η)1] This calculation needs to be done under worst case load conditions i.e. for the maximum anticipated load power.

  • Small Tactical Electric PowerEnergy

     · Circuit Board Level • Reduced Component Temperatures • Smaller Heat sinks = Weight Reductions • Compatible with high- efficiency Inverters • Low Coefficient of Thermal expansion • Thermal Properties as good or better than Copper • Lighter weight than Aluminum • Easily Integrated into Existing Systems Combine CarbAl™ with

  • Investigation of Discarded Printed Circuit Boards for

     · The present study reports a process route to recover copper values from two different discarded printed circuit boards. The boards are shredded and subjected to both air and water fluidization for the separation of plastic values. Tap density measurements are used to delineate the separation efficiency, and metal recovery is calculated using Newton efficiency. Thermal exposure of the

  • Analysis of the Electric Vehicle Industry

     · a smart investment, but as some would say, it is an inevitable one. Further, the switch to electric vehicles will generate demand for existing jobs and create new jobs as well. As study after study confirms, job growth in electric vehicle industries will outweigh any reduction of jobs in traditional fuel industries, resulting in net job growth.

  • Electronic waste generation, economic values, distribution

     · Based on the e-waste estimation generation from four IT products (in Fig. 10a), the major potential recoverable metals (in particular copper, gold, silver, platinum and palladium) in the e-waste were estimated by quantifying the amount of the printed circuit board (PCB) and the associated metals content (cumulative amounts as shown in Fig. 10b

  • Waste Printed Circuit Board (PCB) Recycling Techniques

     · The highest recovery rate (98.37%) was obtained with the condition of pH value 1.56, elemental sulfur S 0 5.44 g/l and 16.88 g/l FeSO 4 ·7H 2 O concentration. However, the increase of WPCB addition in culture from 18 to 32.4 g/l will cause a sharp drop in the copper

  • On BoardHapag-Lloyd

    The lower the water resistance on the hull, the less fuel a ship needs in order to travel at the same speed. Further optimisation potential was identified for Hapag-Lloyd’s most modern vessels, those in the “Hamburg Express” class.

  • A cost-effective strategy for metal recovery from waste

     · Therefore, an energy-saving pyrolysis process of WPCBs with lower pyrolysis temperature (500 °C) and larger particle size of 16–20 cm 2 with lower mechanical-energy consumption was developed (Guo et al., 2014). The metals and fiberglass were easily separated via manual separation.

  • Investigation of Discarded Printed Circuit Boards for

     · It is obvious that boards containing 30% metal and 70% plastic values will consume significantly more heat/energy resulting in higher waste generation and a low overall process yield compared with metal-enriched segregated feed.

  • Morphology, composition, and mixing state of primary

     · Morphology, composition, and mixing state of individual particles emitted from crop residue, wood, and solid waste combustion in a residential stove were analyzed using transmission electron

  • Morphology, composition, and mixing state of primary

     · Morphology, composition, and mixing state of individual particles emitted from crop residue, wood, and solid waste combustion in a residential stove were analyzed using transmission electron

  • Valorization of Printed Circuit Boards from Waste

     · Copper although present in higher concentrations, has a lower value, but still represents approximately 10% of the intrinsic value of the printed circuit board. In addition, Table 2 shows that hazardous metals which may have a significant impact on the environment are present in printed circuit boards, including, lead, nickel, antimony.

  • Copper and Electricity Introduction

    This waste costs money, and results in increased environmental damage. 60% of all the copper produced worldwide is used in electrical applications. It is used in electric motors and generators, transformers, wires and cables, printed circuit boards and microchips. Copper Cables. Copper and energy efficiency Copper is a very good electrical

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