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More handpicked essays just for you.
Energy consumption and energy conservation in our home
The impact of fossil fuel consumption
Environmental impacts of fossil fuel consumption
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Introduction
There are a variety of technologies for heating a residential home. Such choices include natural gas, propane, electric, and wood. Operating costs for heating a home tend to vary from one year to the next as fuels are market driven. Resources are becoming less accessible every year. Today, there is great interest for energy efficiency, conservation, and the safeguarding of our environment. Developing new sources of energy is important and such examples include solar, wind, and geothermal energy. However, by using more efficient and economical storage devices we can use our existing resources more sensibly. Fortunately, there are more advanced options available today utilizing closed-loop control systems. A closed-loop control system is defined as “measuring the difference between the actual value of the controlled variable and the desired variable and uses the difference to drive the actual value toward the desired value.” An example of a closed-loop control system is Electric Thermal Storage (ETS).
What is Electric Thermal Storage (ETS)?
Electric Thermal Storage (ETS) heat is a quiet, odorless, affordable technology utilizing electricity. ETS pertains to the development of transforming electricity to thermal energy and saving it as heat. ETS has been around for decades and is commonly used in Europe and Canada. However, this type of storage is not feasible in areas with a lack of electrical service or high-priced electricity. ETS is effective where low-priced off-peak power capacity is offered. Heat can be stored in a few types of storage materials. The most common type of storage material is high-density ceramic bricks with an electrical heating element at its core. The bricks are encased in insulat...
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...charging, some of the heat is released into the room to provide immediate comfort. The rest of the heat is stored in the bricks until its’ needed.
During on-peak hours, the heating elements are shut off. Insulation around the core helps the bricks retain the stored heat. After the ETS unit has been charged, fans inside the heater move air around the bricks. The air is warmed to 180 to 200 degrees and returned to the room. Since the process is controlled by a wall thermostat, one can get as much or as little of the heat as one wants.
The ceramic bricks are made out of a high-density iron oxide that surrounds the elements to absorb heat. The high-density compound accomplishes two things. First, it holds more heat for a longer period of time and second, it requires less space. See Figure 1 for a pictorial representation of an Electric Thermal Storage unit.
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In this paper over natural refrigerant I will be covering the pros and cons of natural refrigerant in light commercial and residential applications. There are many natural substances in this world that can be used to help or decrease the efficiency of a heating ventilation air conditioning system. Some of these substances are water, air, ammonia, and hydrocarbons. All these substances are natural that come from the earth we live on. Over the course of this paper I will be covering the pros and cons of swamp coolers, geo thermal heating and cooling units and how these natural substances can help and or decrease how your heating and cooling unit performs.
"Refrigerators." Canada Science and Technology Museum. Canada Science and Technology Museum, 2014. Web. 15 Feb. 2014. .
Energy storage is a means of storing energy for future use and can be accessed when needed. Storage can also make the power more solid or resilient so that it can be managed easier. According to Lockheed Martin “The GridStar Lithium-ion system can help customers reduce electric bills, help utilities defer costly transmission and distribution infrastructure upgrades, and enable the integration of behind-the-meter customer renewable electricity production” (Corporation,
It feels good to not have to replace or reheat the plastic storage containers.The best part of this is Made is the USA, definitely, it passes out all the safety and quality standard requirements.
use air-conditioning is to crank them up, cooling down every room in the house…” in
One of the greatest accomplishments and innovations of human history thus far is the invention of the electric refrigerator. Such a simple concept has literally changed how the entire world stores food and has saved millions of lives in the process. Refrigeration as we know it has only been around since the 1930’s, and in less then a hundred years has been greatly taken for granted. Since the influence of electrical engineering in the modern refrigerator, refrigeration has gone from storing food in an ice cellar to being able to have two dedicating refrigeration units with controllable temperatures and even an ice machine attached. Without electricity modern refrigeration would be drastically different, using instead previous refrigeration
Studies have shown that big changes in temperature do not affect the capability of insulation. In one experiment, materials were set to a high heat of 300 degrees Celsius. After six months in this environment, the substances were cooled to room temperature. The dielectric constant showing the level of insulation had not changed ("Teflon PTFE fluoropolymer resin" 28).
good emitter of heat radiation so a lot of heat will be lost to the
Using energy more efficiently can be an effective way for households to save money and reduce greenhouse gas emissions and also defer the need to develop new sources of energy. The Government has set a target
The modern steel plant receives low current, high voltage power from the generators of the electrical utility company. The purpose of the steel plant primary transformer is to step-down this voltage. The transformer thus provides high current, low voltage power for the EAF furnace. Large furnaces with transformers rated at 100MVA or higher is not uncommon.
When we place two objects with different temperatures in contact with each other, the heat from the hotter object will immediately and automatically flow to the colder object. This is known as conduction. Some objects make excellent conductors of heat while others make poor conductors of heat or excellent insulators. Silver, copper, and gold make excellent conductors of heat. Foams and plastics make good insulators of heat but make poor conductors. Last night for dinner, I made myself a grilled cheese sandwich and a bowl of tomato soup. I heated the soup faster than I cooked the sandwich so I poured the hot soup into a bowl and finished cooking the sandwich. Once I was done cooking, I gabbed the soup bowl and burned my hand. The heat from the soup made the bowl hot. This is an example of conduction.
It is made of high-quality construction to withstand extreme temperatures and rough surfaces. Double-fill insulation traps heat in cold months and allows air to circulate in warmer climates. Plus, it's waterproof
When there is a change in the magnetic field near a material which is electrically conductive, there will be a current produced in the material know as eddy current. This eddy current is responsible for the heating of the material. The amount of eddy currents produced in the conductor depends mainly on the external magnetic field. Heat generation can be controlled by the magnetic field as the heat generated in the element is directly proportional to the current which depends on the magnetic flux. So heat is indirectly controlled by the magnetic flux.
Solar water heaters work by using energy from the sun. There are two types of systems for solar water heaters, an open system and a closed system (“Tapping into the Sun”). These systems depend on the type of climates they are installed in (“Tapping into the Sun”). Open systems are worth the installation if the weather is year round sunny, closed systems are better if the weather gets cold. The water cannot be run during winter so the system will be switched to fuel and in the summertime when it is warm, so the sy...
Household energy conservation is a very practical and realistic approach to conserving energy within our society. US households consume a tremendous amount of natural gas as well as electric energy. It has been calculated that the amount of energy consumed within the US increased exponentially from about 1850 to 1975. If energy continued to increase at this rate, we would be experiencing severe energy shortages in our current society. Luckily, steps towards conservation, including various energy regulations, have curbed that growth somewhat, brining the predicted 160 Qbtu/yr for the year 2000 down to around 93.8 Qbtu/yr by the year 1996. However, household energy usage is still a major issue as households consume about 38% of the total consumed energy and contribute greatly to natural gas consumption and issues such as global warming. Therefore, it is important that people understand how we use energy in the household and what steps can be taken to conserve that energy.