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Tvrtka Adriadiesel-usluge, servisi i rezervni dijelovi d.o.o. iz Karlovca traži djelatnike za metaloprerađivačke poslove tj. bravare, zavarivače, cjevare i sl..
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Finnish Corporation Wärtsilä signed an agreement to acquire Eniram, a Finland-based technology company providing the marine industry with energy management and analytics solutions, primarily regarding the reduction of fuel consumption and CO2 emissions. Eniram's solutions are installed in over 270 vessels. Eniram is headquartered in Helsinki, Finland, and has subsidiaries in the UK, the USA, Germany and Singapore, with a total of 89 employees worldwide. In 2015, Eniram’s turnover exceeded EUR 10 million. The acquisition will enable Wärtsilä to grow and strengthen its digital offering and in-house capabilities, specifically in data analytics, modelling and performance optimisation. The transaction is valued at EUR 43 million (enterprise value). Ownership of the company will be transferred to Wärtsilä with effect from 1 July 2016.
In the Successful Farming magazine, engineer Ray Bohacz responds to the question why it seems diesel engines are more subject to electrolysis over gasoline engines. Is it simply that gasoline engines are better grounded in most cases?
Electrolysis from a poor ground can happen to any engine. There are many, many gas engines that suffer repeated pinholes in the heater core, radiator, or aluminium intake manifold due to a poor ground. Depending on where the high impedance ground is found, a diesel is usually more prone to electrolysis due to the following:
1. Higher amperage starter motor load. More current flow means the ground is taxed at a higher rate.
2. Extended running time at high working loads.
3. Wet liner design in most applications.
4. A higher rate of aftermarket or upfitter equipment that, when installed, may not be grounded properly.
In contrast, due to the lack of aluminium in many heavy-duty diesel engines, in some ways, they are actually less impacted by electrolysis from a poor ground.
The coolant’s ability to be a conductor of electricity comes into play, too. Please note, the major reason a supplemental coolant additive (SCA) is used with a diesel is due to the nature of the wet cylinder liner to vibrate and create air bubbles in the coolant. These bubbles then attack the cylinder liner and eventually eat it away and ruin the engine. This is known as cavitation erosion, and electrolysis can also eat a cylinder liner in a similar fashion. Electrolysis at the cylinder liner is usually more random in its spacing and not dedicated to the thrust side of the bore. For this reason, use the voltage test as a PM on all engines. If there is a problem, you can determine if it was caused due to a bad ground or due to depleted or poor-quality coolant SCA and catch it before it’s a major expense.
Korean ship-owner, Ilshin, and Hyundai Mipo Dockyard have signed a contract for the construction of an LNG-fuelled, 50,000 dwt bulk carrier. The vessel will be powered by a dual-fuel MAN B&W 6G50ME-C9.5-GI engine, to be built by Hyundai Heavy Industries - Engine & Machinery Division (HHI-EMD) who will also supply the ME-GI and fuel gas supply system.
POSCO, the multinational steel-making company headquartered in Pohang, South Korea, has already agreed to charter the newbuilding upon delivery, and will use the vessel to transport limestone for its operations. POSCO will deliver the LNG fuel tank, which will be made of high-manganese steel as an alternative material to the currently widely used nickel alloy.
The ME-GI engine represents the culmination of many years’ work, and depending on relative price and availability, as well as environmental considerations, the ME-GI engine gives ship-owners and operators the option of using either HFO or gas – predominantly natural. The properties of the ME-GI engine series make it the most environmental friendly technology available for marine propulsion.
Wärtsilä welcomed cadets from the State University of New York (SUNY) Maritime College to its Trieste factory. The students use the summer sea term to gain practical experience on board the SUNY Maritime training ship, the Empire State VI.
An extensive agenda was coordinated by Wärtsilä and the SUNY Maritime leadership with the aim of offering the cadets the opportunity to learn first-hand how Wärtsilä manages its production facility. Technical presentations highlighted key topics of interest for the students, including dual-fuel technologies, Wärtsilä Fuel Gas Handling solutions, Wärtsilä’s LNGPac systems, and Wärtsilä technical support team activities. Also, the students were taken on a guided tour of the Wärtsilä manufacturing facility, which offered the group an up-close view of the various stages involved in assembling a Wärtsilä engine. The majority of the engineering cadets on the tour had earlier completed a medium speed diesel engine course, and had experience in performing maintenance work on a diesel engine. This was in part made possible by the donation of a Wärtsilä 26 engine to the university in 2011. The Empire State VI will return to the SUNY Maritime College campus in early August for the start of the new academic year.
Wärtsilä, a global leader in complete lifecycle solutions for the marine and energy markets, announces that it has acquired the USA and Canada based company Weir American Hydro with effect from 30 June 2016. Weir American Hydro is a leading supplier and installer of large equipment upgrades and servicing for the hydroelectric and water distribution industries, specializing in consultancy, design and precision performance enhancements for hydro-turbines and pumps. With its headquarters in York, Pennsylvania, USA and a service centre in Montreal, Canada, they currently employ 241 people, with net sales of USD 45.6 million in 2015.
This acquisition will enable Wärtsilä to grow and expand its existing global Hydro and Industrial service offering. Wärtsilä has over 30 years’ experience in supplying seals and bearings to the hydro and industrial markets globally.
Royal Caribbean International’s Harmony of the Seas is now in commercial operation. The ship features Wärtsilä engines, propulsion equipment, navigation and dynamic positioning systems, as well as Wärtsilä CCTV systems and various electrical & automation solutions. With a length of 362 metres the ship, which was built at the STX France shipyard is the world’s largest cruise vessel, and was delivered from the yard on May 12 of this year.
The Harmony of the Seas is powered by four 12-cylinder Wärtsilä 46F engines and two 16-cylinder Wärtsilä 46F engines, featuring best-in-class fuel economy, and outstanding power-to-weight and power-to-space ratios. For effective manoeuvring, the ship has four Wärtsilä CT3500 transverse thrusters.
Wärtsilä has also provided the engines and thrusters to the vessel’s sister ships, the Oasis of the Seas and the Allure of the Seas, thus emphasising the trust and cooperation that exists between the two companies.
1. AutoCad 360
AutoCad, the popular design software is now also available as a mobile app that allows you to view and edit DWG files on your mobile device or tablet.
Platforms: Apple and Android
2. MathPix Problem Solver
The Mathpix app is every engineering student’s dream come true. It is the first app that allows you to take a snapshot of a math problem where the app will then solve it visually. It reads both handwriting or printed text.
Platforms: Apple, soon coming to Android
3. Engineering Professional
Engineering Professional is a handy app that organizes every equation you could ever need to solve engineering problems. The equations are laid out by engineering specialty and it includes over 650 individual formulas for all of your engineering needs.
Platforms: Apple
4. FingerCAD
This application for technical drawing using your fingers can be a useful tool for quickly designing floor plans and getting an idea for how a space will be laid out.
Platforms: Apple
5. Graphing Calculator
There's no need to point out the benefits of a graphing calculator in the form of a mobile app.
Platforms: Apple
6. HVAC Professional
Whether you are a HVAC professional or just someone trying to fix your broken A/C unit, this app including 200 formulas will help walk you through the process.
Platforms: Apple
7. iCircuit
An excellent app for drawing circuits, testing functions, checking voltages and helping troubleshoot on the go.
Platforms: All
8. iEngineer
The most comprehensive database of information about hardware sizes. It has both US and Metric screw sizes and many more intricate features.
Platforms: Apple
9. LuxCalc
If you are a mechanical engineer who needs help with thermodynamics or fluid properties, LuxCalc is for you since the app calculates the thermophysical properties of various fluids within a high degree of accuracy.
Platforms: Apple and Windows PC
10. Truss Me!
Finally, something to relax a bit. Truss Me! is a very fun game that allows you to design and test structures. It offers up challenges to create stronger structures while also teaching you about the engineering process behind everything.
Platforms: Apple and Android
Hybrid Manufacturing Technologies has developed a unique CNC-based hybrid tool control solution that enables virtually any CNC machine or robotic platform to deploy both metal-cutting and metal-adding heads in the spindle and conveniently change between them. Such operations are normally undertaken by discrete machines and require lengthy additional changeovers and programming steps that take a lot of time. The new technology allows for the majority of metal parts made by 3D printing to have post-processing operations. The hybrid approach also allows different compositions of materials to be used in the same component, while in-process inspection can assure quality levels otherwise impractical or impossible to evaluate. After initial issues relating to both the Ethernet communications and the HMI – with its original control solution, in cooperation with Beckhoff these issues were resolved and easier connection at customer sites was facilitated, offering greater capability to expand the solution as the technology and the customers’ needs evolve.