Archive for Engineering

Hydrogen Cooling Systems in Power Generator

Hydrogen Cooling Systems in Power Generator

It is undeniable that an electric generator is required to have an excellent cooling system to remove heat created therein. If the heat in the generator is not immediately removed, he will directly damage the generator itself. Excessive heat can damage the coils in the extreme rotor, stator, it will even burn components of the generator.

Hydrogen gas is the best choice to replace the air as the cooling medium generator primarily on large-sized generators. Hydrogen chosen because its characteristics were excellent when used as a coolant, call it a high thermal conductivity (0.168 W / m · K), its density is very light, and also a high specific heat. With these characteristics, making hydrogen 7-10 times better than air conditioning if used. This can be likened to generate the same electrical power, air-cooled generator will be sized 7-10 times greater than the hydrogen-cooled generator. Therefore, for large-sized generators, hydrogen cooling systems will become more economical than using the air conditioning. Actually, helium gas has good thermal conductivity as well (0.142 W / m · K), but because the price is much more expensive than hydrogen, then it is not used.

Generators are formed from millions of winding wire arranged in a coil on the two sides of the different sectors the rotor and stator. The coils will generate very high heat during generator operation. Hydrogen as a coolant to flow generator will envelop these coils, absorbing heat, and throw it in the cooling heat exchanger. There are two types of hydrogen in the generator cooling system commonly used is hydrogen cools the generator rotor stator at the same time, and generator with hydrogen cooling for the water on the rotor and stator side. Generators that use hydrogen coolant in the water on the rotor and stator usually large and Megawatt electricity generating over 500 MW. Read more

The Impact of Precision Engineering on Society

Modern society is driven by advances in technology. Today, there are a whole host of devices and apparatuses that have been created thanks to advances in technology that make the life of the common man easier. Technology affects every walk of life, including things like manufacturing, astronomy, transportation, and food production.

When talking about advances in technology, a person would be remiss if they did not focus on the effect that precision engineering has had in making many of the technological marvels mankind takes for granted possible. Many people think of precision engineering as something that is relatively new. However, the truth is that precision engineers have worked to make mankind’s life better for thousands of years.

 

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Precision engineering covers the creation of precision machine tools and the creation, research, development, and manufacturing of high accuracy components and their systems.

Precision engineering takes many different scientific and engineering skills and groups them together. Precision engineering only takes place in societies where a common technological solution can be used in multiple disciplines and on multiple products. An example of this can be seen when one looks at how ancient tool making worked with astronomy and horology to eventually create some of the modern tools that are used to map the stars as well as map the planet.

Precision engineering is seen in many different disciplines. Its purpose is always to come up with an innovative way to respond to the needs and wants of society.

Throughout history, there have always been two driving forces behind the advancement of precision engineering. Number one was military and defense. The second was trade. Intermixed between these two primary driving forces were secondary forces, which include fear, pride, inquisitiveness, and greed.

It is clear that even in modern society these forces are still driving precision engineering and precision engineers. The only difference is that in modern society, trade in the economy is a more powerful force than the military.

Currently, there are many different tools and procedures that are used in precision engineering. One technique that is widely used in precision engineering is CNC milling (computer numerical control milling). This process involves using a rotating cylindrical cutting tool. However, the CNC machine has the ability to move along multiple axis, and this allows it to create a wide array of complex shapes, holds, and slots.

Military and economic forces will continue to be the driving factor behind precision engineering. The result will be new technology that will have a positive impact on the way mankind lives.

How it Works Solar Cells

Cara Kerja Sel Surya

Solar cells are devices that can light from the sun directly into an electrical energy. Solar cells are also called the media to maximize the potential of energy derived from sunlight. Although used in generating electricity, the energy of the sun can also be maximized heat through solar thermal energy. Solar cells are often used by various companies to generate electrical energy.

When getting sun exposure in general of the solar cell can produce a dc voltage of 0.5 to 1 volt, and also short-circuit currents. Large voltages and currents are not enough untu various applications. So that in general a number of solar cells arranged in series to form a solar module. In general, solar modules consist of 28 to 36 and the total solar cell can produce a dc voltage of 12 Volts in standard light conditions. The solar modules can be combined in series and parallel manner to increase the voltage and current on the corresponding output power is required in certain applications. Then how the workings of the solar cells that can harness solar energy into electrical energy? Consider the review below!

HOW SOLAR CELLS
Conventional solar cells work by using the principle that such junction pn junction between p-type semiconductor and n-type. Semiconductors comes from bonding atoms have electrons as a constituent base. Each semiconductor has its own advantages such as n-type semiconductors that have excess electrons negative charge, whereas for p-type semiconductor has excess positive charge holes. Read more

Professional Civil Engineering in Sacramento

Wondering to know the best place to find experts of civil engineering in Sacramento? You need professionals’ assistance in planning and designing your new home or landscape? If that’s the case, the answer will be Frayjidg.com. The site is here to offer people easier access to the expert civil engineers available in Sacramento, which will be more than happy to help people in designing and planning both residential property and commercial infrastructures. They are the highly qualified and licensed civil engineers you will find at Frayjidg.com whose years of experiences in the field.

And the best thing about Frayjidg.com is that they have adequate knowledge and expertise to accommodate every client’s needs. Thanks to many years of experiences they have in the industry that lead them to be one of the most preferred civil engineering contractors in Sacramento. There is no job too small nor too big for them to accomplish. They even is becoming the destination for competitors to seek professional help and assistance in order to accomplish certain job and project they are unable to accomplish themselves. It shows the professionalism and expertise the company has in order to keep the customers happy and are highly satisfied.

We all know how frustrating it could be for someone to find the real experts for their landscaping and construction planning project, and now they can always visit Frayjidg.com to find the best team for the job. We all know how it could be a tricky quest for anyone to find and hire professionals for specific jobs, and at least now they have something they can rely on whenever they need expert civil engineers with qualifications and specialty in the respective field. Learn more about the company, the team involved, and how they work by simply visiting their official website at Frayjidg.com.

What the Industrial Technology and Industrial Engineering?

teknik industri

What the Industrial Technology and Industrial Engineering? Technology is a discipline that, if adopted by someone then that person is called “technology”. Industrial Technology is a discipline that is necessary for man to be mastered one or all of the many things such as; designing, managing, analyzing, and other related matters within the scope of “industrial process”.

Rather tricky to distinguish between technology and engineering. “Technology” relating to discipline, components and products. Industrial technology means is the discipline of components, products and systems are used. While the “technique” is related to someone who is an expert with the methods used. More specifically, the keyword “industrial engineering” is productivity, effectiveness, and efficiency

Techniques associated with education and career. Career can be an industrial engineering student after graduation is production engineers, supply chain managers, operations analysts, quality engineers, and information system analysts. Cultivated fields are also very spacious, all kinds of businesses, companies, and governments seeking to improve performance and reduce costs requires an industrial engineering. In addition, many industrial engineering graduates who make their own business or go into consulting.

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Why Do You Need CNC Machining and Precision Machining Services for Your Business?

Precision machining services involves various processes using different tools like milling machines, drill presses, and lathes to produce components of a product or the product itself. For example, sharp tools can be used to get the needed shape from the metals for cars, or to smoothen the aluminium sheets for new airplanes. Even small businesses who are involved in industrial machining could benefit a lot if they find professional services.

CNC Machining

Cost efficiency is the main advantage of hiring professional precision machining services in manufacturing your products. CNC machining can help you take full control of the available materials to maximize the yield and minimize the waste, which gives you more revenue.

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COMPUTER NETWORK TECHNOLOGY

Computer Network

Computer Network

Computer networks is not something new today. Almost in every company there is a computer network to facilitate the flow of information within the company. Internet is gaining in popularity today is a giant computer network that is connected to a computer network and can interact with each other. This can occur because of the development of network technology is very rapid, so that in a few short years the number of users of computer networks belonging to the Internet doubled.

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Super Computer

Supercomputer

Supercomputer

Whether it’s supercomputers? Quoting from Wikipedia, the definition of a supercomputer is a computer engine technology specifically designed for super fast processing capacity, particularly speed of calculation and data processing. Then, whoever the manufacturer of supercomputers? Used for what? What’s the difference with regular server? All will be reviewed here.

XT5 Jaguar, one of the products made by Cray Inc. supercomputer. based in Oak Ridge National Laboratory, Tennessee, top the list of world’s Top 500 fastest supercomputers. Velocity reaches 1.7 petaflops, meaning capable of doing 1.7 quadrillion computing operations per second. Read more