Geothermal Energy, Heating, and Cooling
In order to full under stand geothermal heating and cooling you first need to understand what geothermal energy is. Geothermal energy is a form of energy conversion that is provided by nature and that can be used by humans to cook, bath, heating and generate electric power. The energy is created by capturing and harnessing the heat energy. This heat is formed underground and is created by the radioactive decay of certain elements such as potassium, thorium, and uranium in Earth. One way to produce energy from geothermal heat is to use the heat to create steam to drive turbines that spin an electric generator, this method and others like it can create about 1,400,000 terawatt-years roughly three times the world’s annual consumption(Lund 2014).
Geothermal heating and cooling is doing through a geothermal heat pump, geothermal heat pump use the stable temperatures that occur within the first thousand feet of Earth’s surface. This area of the Earth’s surface is called the lithosphere the temperatures in this area can be between forty and eighty degrees Fahrenheit. Geothermal heat pumps can be no more than five hundred feet below the Earth’s surface, the temperature in this area is between fifty and sixty degrees Fahrenheit which is ideal for regulating temperature of buildings. Geothermal heat pumps are able to heat the building in the colder months and cool building in hotter months by transferring heat energy from the ground to the air at the surface through use of a fluid. There are two types of geothermal heat pump systems: the closed loop the fluid is in a system of looping pipes buried in the ground, the other is an open loop system that uses groundwater as a heat exchanger.
In a typical household thirty-one of the energy consumption is for heating and cooling, geothermal heating and cooling can save on energy consumption up to fifty percent, and the amount of greenhouse gases that get emitted up forty percent when compared to mechanical based heat pump.
Mechanical based heat pumps systems all have some common components: a compresser, a condenser, and an evaporator. The whole system is made of pipes that circulate a fluid that allows the transfer of heat. The evaporator is what transfer heat from the air in the room to the fluid inside of the system of pipes. The condenser is what takes the heat from the fluid and transfers it to the air outside.
Peter Eisenberger, the cofounder of Global Thermostat claimed that the idea of the Global Thermostat here is to divert the carbon in the atmosphere into other forms or process where it will not damage our environment. The first thing that we can do is to capture the CO2 from the air then we can use it for things that will not leave any carbon footprint such as fire extinguisher, soda, and dry ice. We can also use CO2 to help the oil mining by squeezing oil from underground. We can also produce a biofuel and biochar we both have carbon negative source of
Water is heated in the first container (1) which produces steam. The steam carries heat, called latent heat. A pump on the wall of the first container (1) pumps the steam into the second container (2). The steam from the first container (1) heats the syrup and boils it, creating sugar crystals, in the second container (2), using up the latent heat in the steam from the first container (1). The evaporating syrup creates it's own steam, with latent heat as well. A pump on the opposite wall of the second container, (2), pumps the latent heat in the steam into the third container (3).
Geothermal energy is thermal energy generated and stored in the Earth. Thermal energy is the energy that determines the temperature of matter. Due to this effect, it widely impact lives and cultures around its area. During winter, temperatures of the whole Yellowstone will drop to 0 degree Fahrenheit, and the snow thickness reaches 20 inches. In addition, an elevation of 7,733 feet (2,357 m) above sea level forms rarefied air in Yellowstone area. All of these show a severe circumstance for any plants or animals. However, geothermal energy in Yellowstone changes this condition.
Increased energy consumption: Increased temperatures during summer in cities increases the demand for energy as many people would want to air condition their properties. Studies have shown that a spike of energy demands occurs for air conditioning or cooling , this spike is between 1.5 to 2 per cent for every 0.6°C increase in air temperatures 20 to 25°C showing us that the community requires about 5 to 10 per cent more electricity to cope with the urban heat effect.
Refrigeration Refrigeration is defined as “The process of removing heat from an enclosed space, or from a substance, to lower its pressure.” (First website given in bibliography) In simpler terms, it is removing heat from states of matter in order to keep them cooler. The basic need for refrigeration is to cool food and beverages, as they often get spoilt if the temperature is high. Before actual refrigerators and other such mechanical systems were introduced, it was very common for people to cool their food with ice and snow.
because a gas company was forced to shut down a pipeline due to the need for
Geothermal energy is one of the oldest sources of energy. It is simply using and reusing (reusable energy) heat from the inside of the earth. Most of the geothermal energy comes from magma, molten or partially molten rock. Which is why most geothermal resources come from regions where there are active volcanoes. Hot springs, geysers, pools of boiling mud, and fumaroles are the most easily exploited sources. The ancient Romans used hot springs to heat baths and homes, and similar uses are still found in Iceland, Turkey, and Japan. The true source of geothermal energy is believed to come from radioactive decay occurring deep within the earth.
Heat is thermal energy being transferred from one place to another, because of temperature changes. This can take place by three processes. These three processes are known as conduction, convection, and radiation.
Solar thermal energy is not the best way to heat your home and hot water because it is a very inefficient system. For example Martin Holladay from Green Building Advisor suggests that solar thermal energy is inconsistent. During the long days of summer more hot water is produced than what is needed. But during the dark, cold winter there is not enough hot water (parag. 6-9). This demonstrates that this method of heating is inconsistent and unreliable. During the winter when you need the heat the most, you will not have it. Plus in the summer, when hot water is not needed as much, hot water is produced in large amounts but there is no way to store it for a long time period which makes the system inefficient. As Michael Wolfe states “Devices cannot generat...
Finally, the liquid moves to the evaporator, where heat from the inside air is absorbed and changes it from a liquid to a gas. After that, it goes again to the compressor, where the entire cycle is repeated.
... temperature of 112 0C also and a pressure 2.5 bar. Cooling water is used to condense the vapor exiting column. Remaining methane and hydrogen are separated in reflux drum where the vapor stream is combined with other gases streams. The overhead of first and second separator are combined to form fuel gas. The liquid stream exiting in the bottoms of the reflux drum is pumped at pressure of 3.3 bar for discharging pressure. The pump stream is separated in two streams. One stream is to feed to tray one of the column and the other one stream is cooled down to 38 0C in heat exchanger. Then, the cooled product stream is sent to storage.
The water heater is very important because it supplies heat to the whole house. The benefits between hybrid water heaters and solar water heaters are they both have cash incentives which help homeowners save money and they both save resources.
In thermodynamics Refrigeration is the major application area, in which the heat is transferred from a lower temperature region to a higher temperature region. The devices which produce refrigeration are known as Refrigerators and the cycle on which it operates are called refrigeration cycles. Vapour compression refrigeration cycle is the most regularly used refrigeration cycle in which the refrigerant is alternately vaporized and condensed and in the vapor phase it is compressed. Gas refrigeration cycle is the well-known refrigeration cycle in which cycle refrigerant remains in the gaseous phase throughout the cycle. Cascade refrigeration are the other refrigeration cycles discussed in this chapter; absorption refrigeration is the one more refrigeration cycle which is used where the refrigerant is dissolved in liquid before it is compressed. One more refrigeration in which refrigeration is produced by passing the electric current through two dissimilar materials is called as the thermoelectric refrigeration.
There are various ways which one can space heat their house. The most common way is to use a furnace, however, stoves, fireplaces, electric resistance heaters and electrically powered heat pumps can also be used to heat the house. Furnaces run mostly off natural gas and tend to be around 60-90% efficient. Older units can be as low as 50% efficient. Electric resistance heaters are usually around 100% efficient at producing heat. However, this statistic is slightly misleading when thinking about total efficiency because you must account for the electric energy being consumed by the heater. Power plants are only able to produce electric energy from natural gas at about 35% efficiency. Consequently, electricity is more expensive than natural gas to produce, making electric resistance heaters more expensive to operate. This energy cost must also be accounted for when adding up the total cost of electric resistance heating.
One of the most compelling arguments for the use of renewable energy is how many forms exist of it. Nuclear power, solar power, wind power, tidal power, hydroelectric power, pumped storage, wave power, geothermal power, biomass, and biogas are the most widely known renewable energy sources (Darvill, 2013). This large selection of fuels supports the idea of renewable fuels one day powering the entire planet. All the sources of energy have different niches and benefits. Solar energy is extremely effective when providing energy for small establishments such as a house or small store, but hydrothermal power would be a more plausible solution for factories or large establishments....