Nuclear Energy Environmental Impact

The ITER Tokamak Fusion Reactor

Environmental Concerns The environmental concerns associated with nuclear reactors are very different than with fossil fuel–burning power plants. On the positive side, reactors do not emit greenhouse gases or other atmospheric pollutants. They also use significantly less fuel in terms of weight than coal-fired plants. Reactors for electricity production have …

Read More »

How Does Nuclear Energy Work

Diagram of a Pressurized Water Reactor

Nuclear Energy Nuclear energy derives its power from the enormous amount of stored binding energy in the nucleus of the atom, which is the energy that holds the nucleus of the atom together. By tapping this energy, a substance such as water is heated and converted to steam to drive …

Read More »

Environmental Impact of Fossil Fuels

The environmental effects of using fossil fuels can have a serious impact on the quality of life. The process of burning fossil fuels combines carbon in the fuel with oxygen in the air to form carbon dioxide (CO2) that is released to the atmosphere. This is true for all fossil …

Read More »

Types of Fossil Fuels

renewable energy sources in the united states

Fossil fuels are fuels formed from decaying plant and animal matter that was primarily formed over millions of years. Fossil fuels include coal, oil (petroleum), and natural gas. These fuels have been the primary energy source for over 200 years, but they will eventually have to be replaced by other sources …

Read More »

Transformer Ratios of Single-Phase Transformers

Figure 4. Diagram using standard electrical symbols to show the AC supply, a single-phase transformer, and its connected load in an electrical schematic

In a given single-phase AC transformer, whether auto, isolation, or current type, there are three principle transformer ratios: the current ratio, the turns ratio, and the voltage ratio. The ratios of both current and voltage are dependent on the turns ratio, which is established at the point of manufacture (by …

Read More »

Electric Motor Load

As shown in Figure 1, the installations and uses of electric motors are just as diversified as the many different kinds and horsepower ratings of electric motors. In general, electric motors or electrical utilization equipment that contains motor loads must be provided with a disconnecting means, supply conductors, and some …

Read More »

Scientific Notation Rules and Examples

scientific notation

The goal of this module is to provide students with the tools they need to use scientific notation to represent quantities, apply electrical units of measure, convert metric units, and express measured data with the proper number of significant figures. Objective A learner will be able to: Use scientific notation …

Read More »

Secure Data Transport in the Cloud

Secure Data Transport in the Cloud

On the Internet, the primary protection mechanism is encryption. Cloud providers use encryption such as Advanced Encryption Standards (AES) and Triple Data Encryption Standards (3DES) to ensure a standard of security in their environments. Encryption is often used with identity management. To avoid exposure to a user’s identity and to …

Read More »

Key Technical Considerations for Cloud Deployments

INTRODUCTION In this lesson, different cloud types will be compared to identify which type is best suited to meet an organization’s business needs. Technical details of new and/or previously discussed cloud components and features will also be explained.  Cloud service providers will often adopt technical standards to ensure its customer …

Read More »

Electrical Engineering Terms A

ABB Drive Assistant For ABB Drives, particularly the ACS355 Series, the Drive Assistant provides a convenient method to program and control the ABB Drive and electric motors. There are two version, the Basic with a one-line display and the Advanced with a three line display. Amortisseur Winding. In an AC …

Read More »

Electrical Engineering Terms B

Bonding. The act of interconnecting two or more conductive bodies to establish electrical continuity and conductivity. Baseline Speed. Listed on the nameplate of a given electric motor, the baseline speed is the full-load or running speed or rpm of the motor when it is operated at its rated voltage, rated …

Read More »

Electrical Engineering Terms C

Capacitance / Stray Capacitance. Capacitance is the storage of electricity in a capacitor. Capacitance in the earth is referred to as stray capacitance. Stray capacitance describes the storage of an electrical charge on the ground due to a natural difference of pressure (static electricity). Capacitor / Condenser. The descriptive term …

Read More »

Electrical Engineering Terms D

Demarcation Point. The term demarcation means the setting or marking of boundaries or limits. Demarcation point is the service point where the electrical-utility power transmission/distribution grid with installation governed by the NESC (National Electrical Safety Code) stops, and the electrical power distribution system for a building or other structure (premise …

Read More »

Electrical Engineering Terms E

Eddy Currents. Circulating currents induced in conductive materials by any type of varying electromagnetic fields. Effective Ground-Fault Current Path. An intentionally constructed, low-impedance electrically conductive path designed and intended to carry current under ground-fault conditions from the point of a ground fault on a wiring system to the electrical supply …

Read More »