Ly Skills

  Energy efficiency in hospitals - Lighting (part 5)   How to optimize the lighting in hospitals and achieve energy efficiency? Lighting  is one of the major energy consumers in hospitals, as in many other types of utility buildings. Various studies have shown that the lighting installation represents about 20% of the total energy consumption of a hospital. As for  energy-saving ,  this can be done on lighting, these can be divided into two main categories, each of which is discussed below. . Smart switching The fastest savings can be achieved with “smart switching” of lighting. The lighting is often turned on unnecessarily when, for example, there is  sufficient daylight  or there is no one in the room. With manually operated systems, in particular, the lights tend to be left on unnecessarily. The advice is therefore to make the best possible use of automatic light control equipment. Examples include:  </ p>...

  Depreciation of light emissions Illumination: Illumination initially provided by a lighting installation will gradually fade over the course of its use due to reduced number of lamps, lamp burning, and dirt build-up in lamps, fixtures and room surfaces.   Dirty surface of fluorescent lamp However, it is possible to keep the illumination equal to or above the minimum allowable value (called the maintenance value), clean lighting fixtures and room surfaces, as well as replace burnt out or worn lamps at suitable intervals, according to a previously agreed maintenance program. The value of this maintenance schedule is shown in  Figure 1 . Clearly, in the case illustrated, the illuminance in the unmaintained system will decrease to 40% of the initial value during the first three years and continue to decrease. But with an annual cleaning, a paint change and a paint change every three years, the shine reaches 60% of the original value. In three years, th...

Brightness, lamp life and efficiency of LED luminaires Introduction A typical  LED luminaire  has four main components: an  LED Emitter ,  the device's heat sink ,  driver  and  dimming control , and  dimmer optics . The transmitter consists of the matrix, a heat sink, a lens, and an external housing. The chip is the actual LED chip in the transmitter. The color of light is determined by the energy gap in this semiconductor. The heat sink that is part of the transmitter keeps the chip away from heat and leads it to the device ground (larger the device  heat sink  ). The electronics in the power supply are designed to limit the drive current to the specifications of the LED. In this regard, LEDs are very sensitive;  too much current can shorten their useful life from 50,000 hrs. to nothing in an instant . This is why manufacturers warn that the light  should not be used above a certain temperature...

Do you want to know how to become an instructor ? Well, the answer is simple and short. The first step is to decide your field of interest in teaching. Is it for personal or professional satisfaction? If you are satisfied with the career you are pursuing, then that is the right choice for you. How will you pay for your education? You can pay in one of two ways: through loans from your state or through student loans. There are also some private grants, which can help you pay for your education. If you do not qualify for federal student aid, you can apply for state loans. When you get accepted into a college or university, you will be given a notice of acceptance, and you can begin the application process. In order to successfully complete the application process, you must be prepared to demonstrate your teaching skills. Are there some specific courses I can take to prepare me to become an instructor? Yes. There are many prerequisites that you must meet before you can take the requir...

AutoCAD is a leading software that has been in use for quite some time. It has been used widely by architects, engineers and even car manufacturers as they are able to create various types of plans and designs for different projects . There are quite a number of AutoCAD training courses that can help you learn how to use the CAD system. You can either attend classroom-based training sessions or self-study tutorials. The training tutorials available on the internet are perfect for individuals who would like to keep their training at a pace that is convenient for them. You can download training material from online websites for free. The tutorials will help you acquaint yourself with the basics of AutoCAD and CAD design. You will be made aware of the terminology that is involved in the process of designing AutoCAD designs. As you go through these training modules, you will also get to know about the various concepts that are involved in AutoCAD such as AutoCAD drawing language (AGL), Aut...

A lot of people have different methods for learning a new subject such as electronics, but the way in which learning PLC Programming has become popular is because it is an easy way to learn. Learning to use PLC is not only an easy way to learn, it is also one of the most cost effective ways to learn a subject. If you compare prices between books, classes and home study courses, you will find that learning to work with PLC is a much better way to learn . The best way to learn PLC is by finding a good book on PLC programming and then taking the next step to getting the program loaded into your computer. With the FATEK PLC software, you can save money and time by doing so. FATEK is a great program for anyone who wants to learn how to work with a PLC. It is an electronic program that you will be able to learn from , so you can save time and money. As long as you have access to a computer and an Internet connection, you will have all the tools you need to learn how to program a PLC. You ...

The first question you need to answer before deciding on which institute is the best to learn DIALux software in Pakistan is what exactly you wish to learn? If you are merely interested in learning about the fundamentals of programming language, then you will not need the extra features such as modules for language designing and syntax. If you want to learn more advanced functionality such as object oriented programming, then you may be better off looking elsewhere. However, if you only wish to learn the basics you can simply follow the tutorials that come with the software. Once you know what you want to learn, it will become a lot easier to choose which is the best institute to learn DIALux software in Pakistan. Before you start looking for a school, you should decide whether you want to learn yourself or enroll for an online class. If you do decide to learn yourself, you will need to learn how to operate the software properly. If you have never used computers before, it can be c...