Essays on Thermal Energy

Global Warming Phenomenon

The issue of global warming has been a critical problem across the entire world due to the effects associated with this condition. Global warming is caused by the increase in Earth's temperatures due to the effect of greenhouse gases. The greenhouse gases, such as carbon dioxide emitted from burning of fossil fuels like coal, oil, and natural gas to provide energy are responsible for trapping heat and preventing it from escaping from the Earth’s atmosphere. Human activities like cutting down trees and burning forests for farming activities has been attributed to the emission of greenhouse gases that are ...

In order to reduce the United States’ dependence on fossil-fuel energy resources, alternate sources of renewable must be investigated in order to reduce the country’s emission of greenhouse gas emissions which contribute to global warming. At the recent COP21 Climate Summit in Paris, the United States committed to a reduction of greenhouse gas emissions by 26-28 percent below its 2005 level. This includes reductions in methane, carbon dioxide, perfluorocarbons, sulfur hexafluoride, nitrogen trifluoride and nitrous oxide, all of which contribute to global warming . In order to achieve these targets, the United States will need to employ alternative sources ...

Summary

While all the components of a brake system are important, it is imperative to acknowledge that some components play significant roles in the system as compared to others. One such component is the brake pad. In most cases, the brake pad is referred to as the friction material. It is responsible for generating the friction which opposed the movement of the wheel thus causing a stop to the movement of the automotive. This report is aimed at selecting a section or component of the brake system and presents its modification. As a consequence, the report highlights and discusses the ...

Use of Fossil Fuels for Power Generation and the Need for Renewable Energy

According to Nelson (2011), more than 85% of the world’s energy consumption, which is estimated at 520 exajoules, is generated through the burning of fossil fuels such as petroleum, natural gas and coal (p.19). Electric power generation from non-renewable sources will, unequivocally, result in their exhaustion and creation of a major energy crisis. For this reason, it appears primordial to shift in a greater scale to alternate power generation, such as solar, wind, hydroelectric, etc. Amongst these, Sorensen (2011) explains that though hydroelectric power does represent one of the major forms of power generation, its growth is stagnant ...

Wave and Wind Power Generation

Wind Physics Basics Wind is atmospheric air which is in motion Energy Source The earth surface absorbs solar radiation differently. Some parts absorb more radiation than other. This creates pressure zones. As a result of pressure, air moves from high-pressure zones to low-pressure zones. This causes atmospheric air motion known as wind. Wind is a renewable source of energy. It is constantly available free of charge (Bhattacharyya, 2011).

Spatial scales

Atmospheric air motion can be categorized depending in terms of spatial scale. Four spatial scales identified include planetary scale, synoptic scale, mesoscale, and microscale. There are various types of spatial scales ...

Benefits of Green Schools in Kuwait

CHAPTER 1: INTRODUCTION Kuwait is a country located in the Middle East, which is a region characterized by severe water shortages as its located in the middle of a desert. Also, nearly all the electrical energy consumed in Kuwait is generated from fossil fuels such as natural gas and diesel. This situation poses several challenges. For example, the lack of enough clean water for domestic use could lead to serious problems such as waterborne diseases, such as cholera or typhoid. Also, water shortages can affect businesses such as agriculture and hospitality businesses. On the other hand, over reliance on ...

Introduction

Energy is a key driver of any nation’s economy. The extent to which it contributes to the performance of all activities surrounding the human life is beyond measure. This is because energy contributes almost fully to the economic development of the economy. In its physical form, energy is classified either as renewable or non-renewable. Renewable energy forms the green energy that can be reused again and is less toxic to the environment. On the other hand, non-renewable energy is exploited once it’s used and mostly pollutes the environment. All this energy forms can be either used directly ...

Solar Power Generation

Sustainable Technology – Solar Power Generation Power Generation from Fossil Fuels and Global Warming Global warming, as defined by Lineman, Do, Kim and Joo (2015), is the long-term trend of increasing average temperature of the lower atmosphere. It is widely known that this phenomenon is related to the concentration of greenhouse gases that trap heat in the atmosphere, such as carbon dioxide, methane, nitrous oxide, among others. Activities related to human development such as industrial processes, agriculture, cattle raising for meat consumption, transportation, deforestation and power generation are the major causes of greenhouse gases emissions. Specifically, power generation based on ...

Calpine cooperation was founded in 1984 and currently the cooperation is the largest in America. The corporation generates electricity and thermal energy from natural gas and geothermal resources. With a fleet of around 84 power plants, the company generates around 270000 megawatts of electricity and through wholesale operations and retail business; the center serves in over 21 states and Canada. The corporation has taken a lead to ensure a cleaner energy for future use is in place. The focus of the center is to provide its esteemed customers with clean, efficient and reliable electricity and thermal energy. With this ...

Abstract

Montreal is concentrating on making the city appealing to the general public and by extension the entire globe. Considering the possibility of wider and heated sidewalks alongside fewer cars and more trees, Montreal has decided to launch the future of Saint Catherine Street. The street being the most important in the city requires innovation, flexibility and audacity in an effort to offer a description of the dynamic and greener look on the streets. The street is the largest and this means it requires more attention than any other street in the country. There is a dire need for infrastructure ...

Thermal conductivity is defined as a material’s property to conduct heat. Heat transfer across materials occurs in materials that have lower thermal conductivity and transfers faster in materials with high conductivity. It is important to determine the thermal conductivity of materials since different materials are used for different applications. For instance, materials with high conductivity are more efficient when they are used as heat sinks since they can conduct heat away faster. Those with lower thermal conductivity are often used as insulators (Callister 78). The classical transfer of energy happens through conduction, radiation, convection or combination of all ...

Introduction

The fundamental process of thermal power plants is based on the conversion of thermal energy into mechanical energy and, subsequently, into electric power, using steam as the working fluid. According to the U.S. Energy Information System, over 67% of the electrical energy in the United States is generated through thermoelectric power plants, which use the combustion of fossil fuels such as natural gas, coal and petroleum to generate the steam necessary for the process; moreover, thermoelectric power generation accounts for an approximate 80% of all the power generation worldwide. Thus, the electricity consumed in most homes and industries is ...

Infrared Cameras

Introduction An infrared camera is a non-contact device that detects infrared energy and converts it into a visible light display. The infrared energy is first translated into electrical impulses that are then converted into data for camera display. The image or video formed on the screen is of different colors depending on the intensity of the infrared emission. Most cameras have built-in visible light digital cameras that allow merging of infrared and visual images. There are two different types of infrared cameras; cooled cameras and uncooled cameras. The cooled infrared cameras produce superior image qualities than uncooled cameras but ...

I will be looking at whether resource prices are rising or falling. I will conduct a deep research into the root of this problem around the world. Through this research it will be easy to establish the solutions to this problem which is not healthy to the economy (Neumayer 68). The research will be conducted through; closed questionnaires, data analysis and use of internet research which includes the use of World Bank and IMF data. Just to take a preview of the essay topic, the history of this problem is from the recent drop in global oil prices that ...

- Prospecting

The customer for product/service solar electricity is healthcare hospital as hospitals need continuous power supply for patient care and other activities.

Healthcare Hospitals

Hospitals and medical centers are complex institutions which treat thousands of patients on a monthly basis . Patients have different requirements and needs when they visit hospitals. While some need immediate attention, some are suffering from diseases, and few come for child delivery and a few others for a routine checkup. Health care hospitals are responsible for patient care and continuous power supply is critical to the functioning of hospitals. ...

Kinetic theory of matter tries to explain all molecules in terms of motion. The theory posits that every substance consists of many small particles referred to as molecules. Substances in this case are called matter and are in three forms; solids, liquids, and gases. Solids have molecules that are closer to each other by intermolecular forces. Liquids on the other hand have molecules slightly far apart with gases the furthest apart. Furthermore, according to this theory all the molecules are in constant random motion referred to as Brownian motion (Chang, 2004).

The study of heat relates to kinetic theory ...

Energy is the ability to produce change in a system. It can easily be converted from one form to another. The process of changing one form of energy to another is called energy conversion (Sorensen, 2007). This paper is therefore devoted to the analysis of how energy can be converted from one form to another. Also, it presents a clear elaboration on what fossil fuels are and why they are becoming attractive energy sources.

Three different ways can be used to explain energy conversion. Energy can be converted through action of forces, when atoms emit or absorb photons of light, and ...

Abstract

The seawater forms 97% of water of the world, and the icecaps account for 2%. The portion of water available for human consumption is barely 0.5% and that also in aquifers. The widening gap between availability and requirement of potable water especially in the Gulf countries has necessitated newer methods and technologies for production of water suitable for human consumption. This situation in the Gulf region has developed due to non- availability of surface water, high growth of population and urbanization, and water depletion. The present paper takes account of the desalinization of seawater plant established in Abu Dhabi ...

Methods of Heat Transfer

Conduction The first method through which heat is transferred from one object to another is conduction. Conduction occurs in liquids and solids through transfer of kinetic energy present in one particle to the immediate particle(s) in its surrounding. By considering the bonds existing between atoms and molecules in solids as elastic links, the vibration of one particle due to increase energy level caused by heat, the next in its line vibrate too. This process is replicated in adjacent particles thereby allowing transfer of thermal energy from a body with a higher temperature as compared to the one with low ...

Did you ever wonder why wearing white in a hot summer day is more comfortable than wearing black? Or why some of the dark colors are viewed as hot colors and the light colors are cool? The answer lies in the adsorption of light of the materials depending on its color. A thermal energy source like the sun will converts its thermal energy into electromagnetic waves which will be transported to its receiver. These electromagnetic waves will be absorbed by the receiver and it will convert back into thermal energy or heat. The difference in the absorption properties of different ...

Introduction 3

Background on Report 3 Current Technologies Photovoltaic (PV) Solar Technology 5 Concentrated Solar Power (CSP) 8 Solar Heating and Cooling (SCH) Technology 10 Analysis and Recommendation 11 Conclusion 12 Figures and Tables Figure 1: Diagram of a P-N junction in a Photovoltaic Cell 6 Figure 2: A Typical Parabolic Through CSP System 9 Figure 3: Wakiki Shore Apartments in Honolulu, Hawaii 11

Used in Contemporary Society

Introduction The use of fossil fuels results in combustion gases which contribute to global warming. Furthermore, these combustion gases result in air pollution which is detrimental to the ...

1.1 Introduction In typical industrial applications, the machines and equipment involved require high electrical ratings, like high voltages and high currents. Different machineries have varying voltage and current ratings. These ratings should be followed in order that the equipment operates properly whenever needed. However, undesirable conditions, like voltages and currents above the prescribed ratings (usually called as faults), are not totally unavoidable. In these conditions, damages on the machinery might occur which can cause production issues and problems, and may even be hazardous to humans. These conditions can be avoided by integrating protective circuitry within the electrical systems. ...

Power capacity is the maximum amount of power that an electric line can transmit, and it varies with distance and voltage. The longer the distance, the lower the power capacity of the line due a drop in voltage. For example, a line with a 100-mile length has a maximum capacity of 3.8 GW. In contrast, a line with a 400-mile length has a maximum capacity of 2.0 GW (Amin & Stringer, 2008, p. 400). The higher the voltage, the higher the capacity of the lines since high voltages produce more heat that is likely to cause sagging of the lines. The amount of electricity flowing through a transmission ...

[Author] 1. Introduction The Earth holds lots of energy, which can be converted to many forms. The world’s current need is to generate power from the available source; out of that the most used source for power generation is oil and coal [Solar power (Anon., 2009)]. The most of the scientists in the world are recommending not using coal or oil for generating power as it was changing the earth’s current temperature we call it as global warming. Most of the countries are now aware on the effect on using oil and coal for power ...

Omer Bese

Supervised Asst. Prof. Fusun Tut Haklidir

Energy Systems Enginering

Istanbul Bilgi University 2014

LIST OF FIGURES

LIST OF TABLES LIST OF SYMBOLS/ABBREVIATIONS 1. Introduction 3 1.1. Goal of the Study 3 1.2. Renewable Energy Sources 3 1.3. Geothermal Energy 3 1.3.1. What is Geothermal Energy? 3 1.3.2 Geothermal Reservoirs 4 1.3.3 Present Status of Geothermal Energy 7 1.4 Geothermal Applications around the World 7 1.4.1Geothermal Applications in Turkey 8

Flash steam power plants 10

Single Flash 10 Double Flash 11 Triple Flash 11 Binary Steam Power Plants 11 Binary Cycle Types and Differences 11 ...

Abstract

In recent times, solar power has gained immense popularity due to its various advantages over conventional fossil fuels. It is clean, noise free and environment friendly. In the light of these advantages, it is important to study the various technologies used for harnessing the solar energy. This paper explores the various advantages and limitations of these methods in order to apply these for solar power generation. - Introduction As the global demand for energy is growing and environmental issues such as global warming assuming importance, the role of renewable energy sources in energy production is gaining popularity ...

Introduction

Electricity remains one of the energies source that has played an integral role in transforming peoples’ lifestyle, facilitated economic development, improved the living standards and promoted industrialization. Over the years, America has heavily relayed on the electrical power as the main source of power because electrical power is convenient, cost effective, and reliable. As a result of its versatility, electrical power is used for various purposes and in different environments. In most cases, it is used in learning institutions, factories, government corporations, and at homes for distinctive purposes. Normally, electricity is used to operate and run machines in the industries, ...

Sun plays crucial role in the life of the Earth. The entire organic world of our planet is obliged to the Sun for its existence. It is not only the source of light and heat, but also the original source of many other types of energy (oil, coal, water, wind). Since people appeared on the Earth, they began using the sun's energy. According to archaeological data, it is known that housing preference was given to quiet places, closed from the cold winds and open to the sun's rays. Perhaps the earliest known solar system can be considered the ...

Introduction.

This report aims to identify the sustainable technologies that could be developed in New Zealand, to solve energy problems that are experienced by the residents in different cities. This is a case study of New Zealand, which is an island country to the south west of the Pacific Ocean. Despite the comparatively low population and the abundance of natural resources, the country is still among the leading Importer of energy sources. The country is majorly dependent on fossil fuel, hydroelectric and geothermal power as a source of its energy for domestic and industrial use. The increasing gas prices and the overdependence ...

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Introduction Since the 90s of last century, the European Union as a whole and each of the participating countries have begun to implement various initiatives in the area of ​​climate change. In early 2000, the Commission launches the European Climate Change Programme (ECCP), in which collaboration has been initiated with the industries, organizations for the protection of the environment and other concerned agencies. The purpose of co-operation - identify cost-effective measures to reduce CO2 emissions into the atmosphere.

Why it is Important to Reduce CO2 Emissions?

There are real indications that human activity contributes to the accumulation of " ...

The production of electricity is a major focus of energy use, with the United States generating about 4 billion kilowatthours of electricity in 2012, according to the U.S. Energy Information Administration (EIA, 2013). Coal remains the most common source of energy for this process, while renewable energy sources, such as solar, are the type of energy source that is showing the highest growth rate (EIA, 2013). As the consumer demand for electricity keeps increasing, it makes sense to compare the various means of producing it to determine the advantages and disadvantages of using the different forms of energy available. One ...

What is IR?

IR or infrared is an electromagnetic radiation, one of radiations of light. This radiation has the longest wavelength in comparison with other visible light waves and less in comparison with radio waves, starting from the red edge of visible light up to 1mm. Due to the fact that infrared has the longest wavelength it contains the most thermal energy. Approximately more than half of the thermal energy from sun is received in form of infrared radiations, therefore the balance in emitted and absorbed radiations has great role in earth’s climate.

What is UV?

UV or Ultraviolet is also one of the ...

Introduction

Green energy comprises natural active processes which can be attained with slight pollution. Geothermal power, anaerobic digestion, wind power, small scale hydropower, biomass power, solar energy, wave power, tidal power, and certain forms of atomic power (ones that are capable to burn atomic waste by a process identified as atomic transmutation), and consequently belong to the "Green Energy". Some explanations may similarly include power consequential from the burning of waste. Some individuals, including James Lovelock and George Monbiot have precisely classified atomic power to be green energy. Whereas many others which include Greenpeace disagree while claiming that problems supplementary from ...

Environmental Science Unit #3

Law of Conservation

The law of conservation describes the way that energy is not lost or created but cycled through the energy system. That means that energy moves in a closed system unless energy is added or subtracted. Even though energy moves through a closed system it can be converted from one type of energy into a different type of energy. Kinetic energy is the amount of energy minus the potential energy. When a car sits at the top of a hill there is potential energy present, when the car gets shoved down the hill that is kinetic energy. Both geothermal and coal can ...

The changing global scenario has resulted in the growth of a global business culture where multinational companies are looking to invest in upcoming emerging markets throughout the world. But in such a scenario it becomes important to study potential markets and screen sites so as to zero-in on the most profitable business culture internationally. The following paper aims to study the various steps involved in screening a site to reach to a conclusion. Apart from that, the paper also studies few of the emerging market trends that promises to deliver good business in the future and can be beneficial to multinational enterprises in ...