Archive for June 30, 2016

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

Understanding 18650 Lithium Battery

When it comes about finding lithium battery replacement, it is essential for them to know exactly what they are looking for. The replacement should have the exact criteria on both size and specifications to avoid failures in the future. Learning about lithium battery is highly advised even if you don’t need replacements shortly. The first thing people should know about lithium battery is that not all of them are rechargeable. The fact is, rechargeable lithium battery is only limited to certain types, and they are labeled as 18650 lithium battery.

And for everyone to know, the 18650 lithium battery come in various shapes and sizes, mainly to accommodate the diverse needs of specific battery sizes and shapes for certain devices. Each of these batteries tend to carry different specification that one has to be extra careful when choosing one. Aside of the specifications, there are other things people need to pay attention when purchasing 18650 lithium battery, such as the product quality, brand, year of make, and many more. These are important just to make sure one will get the best battery that worth the money they spent. Certain brand has low quality products to offer, and knowing about it will avoid people from befalling to the same trap.

One of the best sources people can go to learn about 18650 lithium battery is PickVacuumCleaner.com. Here visitors are granted for full information and knowledge about lithium battery, specifically 18650 lithium battery. They can learn about the specifications these batteries hold, how to identify the right one, and even to help people easily find and purchase the needed battery via online. When it comes about lithium battery, there are many things people can learn about it at PickVacuumCleaner.com. the site will always be updated regularly just to make sure visitors will find updated information to learn from.

Google Play Store: The Most Important App

Google Playstore is a portal services for android users all around the world. This is the place where users can easily to download new games, music, and even to watch new movies on the go. Google Play Store also offers various services and features to ease people in managing their apps and contents, including also to notify them for any new updates are available for their favorite apps. All are managed in an easy-to-navigate interface which allows even beginners to be able to utilize the app optimally on their first try.

With all the great features and services it offered, it is no wonder if PlayStore becomes one of the most important app that must be installed on every android devices. As user, it’s our responsibility to make sure the Play Store app always up and running on our devices. And among so many things we can do to keep PlayStore run normally is to make sure it always updated regularly. In fact, the developer team release new updates regularly that we supposed to install to our device to make sure Play Store runs smoothly.

If due to many reasons your device is failing to automatically download and install new updates for the Play Store, maybe you’re supposed to do it manually. PlayStore.one is one of the trusted sources you can go to obtain latest Play Store app updates and to install it directly to your smartphone. The site has also included instructions on how to install Play Store just to make sure beginners will be able to do the whole things correctly and get their Play Store app fully updated. Even if you think you don’t need it right now, it’s always a good thing to have the backup of this Play Store update apk. All you need to do is just to download and store it to your mobile phone or PC for later use.

Tripod Shaped Belt Practical Use

tripod

If we think of a tripod, surely there are minds photographic accessories that are large, heavy, and is usually taken by a professional photographer. Of course there is a small tripod but tripods are all still considered to be less quick and can not enter into the pocket.

But now if you want a tripod that can fit easily into a pocket, then you’re in luck because there is a campaign on Indiegogo site for the product. This is called Plaster Hand Mini, a foldable tripod belt and fit easily into your pocket. But it is a question, as to what the belt tripod?

Basically, this is a tripod for a camera that is shaped like a belt belts. Tripod comes with a threaded hook so you can attach your camera, but because of the nature like the belt, allowing the photographer to wrap around the tripod with an object, such as a handle, lampposts, and much more.

This will be useful in situations where you want to take a photograph, but did not find a flat surface to bind your camera. As an alternative, you can use this belt and using a threaded fastener to place your camera.

It could be said if this Mini Hand Plaster probably can not beat the conventional tripod, but if you are looking for some form of stabilizer to be taken during the trip, perhaps this product is suitable for you. For those of you who want to see the video demonstration can listen to the video below.

Be the Best Mech Runner in Mech Rush

Having fun with your gadget is totally possible by considering the fact there are tons of game you can install on your gadget. If you have Apple devices, well, there’s a great and highly recommended game for you to install. The iOs game we’re going to talk about is totally fun and challenging. It’s guaranteed for you to really have fun with it. Mech Rush is the name of the game.

The concept is actually quite simple. It’s a running game. But, what makes it so appealing is how you’re going to run some mech. We’re referring to a kind of giant robot. There will be tons of challenges which will make it possible for you to kill your time. There won’t be any way for you to feel bored once you have got this game on your Apple device. Just imagine about how you will own a Mech which can be upgraded the way you like it. It’s totally up to you how you want to improve the condition of the Mech. Perhaps, you may want to focus on getting the parts which are going to increase the speed of your Mech since it is a running game. Or you may want to improve the endurance of the Mech since there will be so many obstacles you will face during the running. Or you want to upgrade the weapons and try to eliminate any enemies during the game. The options for you to deal with the improvements have no limit. Don’t you think it’s going to be so fun?

And as if it’s not enough for you, you will be able to thrive in conquering many worlds as the game progresses. Don’t forget also about how you are able to try getting new characters. Yes, during the game, you will notice that you will need to defeat some bosses. Each boss is controlled by a pilot. The gameplay will let you learn about the storyline of the pilot which is so intriguing and interesting.

Innovations from General Electric

Innovations from General Electric

A quite revolutionary innovation made by electricity giant General Electric, known as GE. GE is currently conducting research to build a mini power plant the size of a desk, but was able to support at least 10,000 households. Mini turbine is mentioned only a size ten times smaller than the steam turbine with the same energy output capabilities.

A unique feature of this turbine is the driving fluid are not uncommon. Not water vapor, not wind nor water! The turbine uses the fluid carbon dioxide as an energy transfer medium. Carbon dioxide is heated to 700 ° C at very high pressure to supercritical prior to entry into the turbine. Carbon dioxide out of the turbine is cooled and the pressure is increased again before going back past the same cycle.

Technology use of carbon dioxide into various key advantages of this turbine. First advantage is their small size, outsize steam turbines up to ten times smaller. From these advantages alone deliver the turbine further advantage to the startup much faster than the steam turbine. Turbine CO2 only takes one to two minutes to reach full rotational speed, compared with the steam turbine which takes up to half an hour to turn it on. In terms of efficiency, this new type of turbine is able to achieve up to 50% thermal efficiency, which is certainly far enough steam leaving the turbine efficiency is only able to achieve 45% only.

To date, still building a small-scale CO2 turbines capable of generating power up to 10 Megawatt. But planned to be built turbines with power up to 33 Megawatt, power highly enough to support approximately 10,000 households or practically equivalent to a fairly large city. Explained that the main thermal energy sources that will be used later is solar thermal, nuclear or even burning. Technology uses molten salt heat storage will also be used so that the heat from the source can be stored for use at a difficult time as a heat source in winter.