GC: n CT: Radar is an acronym for “radio detection and ranging.” A radar system usually operates in the ultra-high-frequency (UHF) or microwave part of the radio-frequency (RF) spectrum, and is used to detect the position and/or movement of objects. Radar can track storm systems, because precipitation reflects electromagnetic fields
GC: n CT: Radiant Energy. Atoms absorb energy from an outside source and release (or “emit”) this energy as electromagnetic radiation. This radiation can be in the form of waves of many different wavelengths or frequencies. Many energy sources emit radiant energy. The sun and other stars are luminous or
GC: n CT: If you are not familiar with working around radiation or radioactive material, the terms and concepts may confuse you at first. Let’s look at some of the properties of radiation and radioactive material. Radiation – Radiation is energy in the form of waves or particles given off
GC: n CT: An idea to dispose of the waste underground in Antarctica sounded promising: heat from the radioactive decay would melt ice sheets below the waste, causing it to sink. But this plan was abandoned due to international treaties aimed at preserving the near pristine state of the continent.
GC: n CT: Radioactive waste comes mainly from nuclear power production, but also from medicine, research, industry, and agriculture. Radioactive waste is produced in all EU countries and spent fuel in countries with nuclear power programmes and research reactors. While low and medium-level nuclear waste such as from medical equipment
GC: n CT: The scale of the nuclear disaster in Japan caused by the earthquake and tsunami in March 2011, in terms of releases from the nuclear power stations in Fukushima, was not as great as Chernobyl. Radioactive material released into the atmosphere is dispersed around the world, and indeed
GC: n CT: Radon is the main source of exposure to natural radioactivity for humans because it is the only descendant of uranium to exist in a gaseous state. This allows it to leave the surface of a rock containing some uranium and enter the atmosphere. Its ability to escape
GC: n CT: Thermal power plant based on a Rankine cycle. In a simple Rankine cycle, steam is used as the working fluid, generated from saturated liquid water (feed-water). This saturated steam flows through the turbine, where its internal energy is converted into mechanical work to run an electricity generating
GC: n CT: With the knowledge that it is of critical economic importance to know the power and therefore energy produced by different types of wind turbine in different conditions, in this exemplar we will calculate the rotational kinetic power produced in a wind turbine at its rated wind speed.
GC: n CT: Every wind turbine design has a cut-in wind speed, a rated wind speed, and a cut-out wind speed. At the cut-in wind speed, the blades start to turn and a trickle of electricity starts to be produced. Around cut-in, the generator may be used as a motor
GC: n CT: The conservation of energy is an essential step we can all take toward overcoming the mounting problems of the worldwide energy crisis and environmental degradation. Although developing countries and countries with economies in transition are very much interested in addressing the issues related to the inefficient power
GC: n CT: What is reactive architecture? Reactive Applications are the next major evolution of the Internet. They allow for applications to be responsive, scalable and resilient by building on a fully event-driven foundation. Typesafe’s Reactive Platform, consisting of the Play Framework, the Akka middleware and the Scala programming language
GC: n CT: Recycling is one of the best ways for you to have a positive impact on the world in which we live. Recycling is important to both the natural environment and us. We must act fast as the amount of waste we create is increasing all the time.
GC: n CT: When EcoLogic undertakes reforestation we plant native seedlings and saplings in places where healthy forest used to stand. Many forests grow and replenish themselves naturally when seeds are dispersed from existing trees by wind, birds, and other animal life, but human reforestation efforts can speed up this
GC: n CT: How Do Geothermal Systems Work? Three basic components make up a geothermal system. They are: 1) The Ground Loop Heat Exchanger, 2) The Ground Source Heat Pump and 3) The Distribution System (ductwork, radiant flooring, fan coil, etc.). The Ground Loop is the interface with the earth
GC: n CT: Renewables will also have a crucial role to play in the UK energy mix in the decades beyond, making the most of the UK’s abundant natural resources. To increase and accelerate the use of renewable energy in the UK, we have introduced: Renewables Obligation (RO) – provides
GC: n CT: Renewable Energy Integration focuses on incorporating renewable energy, distributed generation, energy storage, thermally activated technologies, and demand response into the electric distribution and transmission system. A systems approach is being used to conduct integration development and demonstrations to address technical, economic, regulatory, and institutional barriers for using
GC: n CT: IRENA initiated a global collection of existing materials on renewable energy potentials. This led to more than 10, 000 references being collated from those available over the internet. The references broadly cover different types of information, from GIS-based systems, to grey literature providing some information on a
GC: n CT: A reservoir is an artificial lake where water is stored. Most reservoirs are formed by constructing dams across rivers. A reservoir can also be formed from a natural lake whose outlet has been dammed to control the water level. The dam controls the amount of water that
GC: npl CT: There is a wide range of biomass materials that are produced as byproducts, residues or wastes from some other process, operation or industry. many of these have a valuable energy content that can usefully be exploited. In many cases this may have the added benefit of divertin
GC: n CT: Resistivity is also important in power distribution systems as the effectiveness of the earth grounding system for an electrical power and distribution system greatly depends on the resistivity of the earth and soil material at the location of the system ground. Conduction is the name given to