The office copy machines (photocopier) is everywhere. Seven millions unit are in used in the United States and more than 1.5 million are sold each year. Anyone who has worked in an office has probably used at least once or perhaps spend hours making many copies. The copy machines are not cheap, not just the price. Office stencils related equipment is the fastest-growing use of electricity in commercial buildings in the U.S., according to the Department of Energy. The electricity consumed by office equipment companies will cost reaching two million dollar per year and copiers play an important role in this matter. (more…)
It is known that laser printers print faster, but swallow a large amount of energy, even if the printer is in the energy saving ...
After lighting, personal computers (PC) and monitors have the highest energy use in office environments. Studies have shown tha ...
Power generation and distribution networks are built with spare capacity to meet peak periods of energy consumption is usually ...
HVAC (heating, ventilation, and air-conditioning) systems vary depending on the complexity of room units size from single rooms ...
If a space is occupied on a predictable schedule, you can use either timeclocks or setback thermostats to turn the conditioning ...
The product gas can be burned in boilers to generate heat and raise steam, in internal combustion engines to generate electricity and heat at small to medium scale (from a few kilowatts to a few megawatts), and in gas turbines to generate electricity (Brayton cycle) and heat at small to large scale. In large-scale systems using gas turbines, the exhaust gas from the gas turbine can be used to raise steam in a heat recovery steam generator to generate additional electricity using a steam turbine (Rankine cycle), resulting in combined cycle operation. (more…)
Gasification is a thermo chemical process that has been exploited for more than a century for converting solid feedstocks to ga ...
The moisture content of the feedstock affects the gas composition and the energy balance of the process since gasification is an en ...
Biomass Storage Biomass storage is required to ensure the continuous operation of the facility. To limit the space required for ...
Natural gas and oil are common source energy used to give electricity. How efficient is coal if we compare to these other source of ...
Many characteristics of traditional engines make them attractive for use in power generation and propulsion technology. They tend t ...
A fuel cell is an electrochemical device that combines hydrogen with oxygen to generate electricity, heat and water to produce. In many ways, the fuel cell is similar to an electrochemical cell. Instead of a regular charge, a continuous supply of oxygen and hydrogen is supplied from outside. Oxygen is produced in the control of air and hydrogen as a fuel made from a pressure instrumentation container. Alternatively, methanol, propane, butane, natural gas supply and diesel are used. (more…)
Alkaline fuel cell, often known as the Bacon fuel cell following the British inventor’ name. It has become the most created fue ...
The fuel cell can trace its roots back to the 1800s when a Welsh-born, Oxford-educated barrister, Sir William Robert Grove, realize ...
Fuel cells are typically classified according to type of electrolyte. While many varieties of fuel cells have been demonstrated ...
Transport applications tend to demand rapid start-up and instant dynamic response from fuel cell systems, so a high-temperature ...
A fuel cell is an electrochemical device that directly converts a fuel to electricity by means of reactions on the surfaces of ...
Natural gas and oil are common source energy used to give electricity. How efficient is coal if we compare to these other source of energy? With respect to security of supply, coal has a clear advantage. The United States has about 300 million recoverable tons of coal. This amount is sufficiency to last 300 years if we are consuming coal in the same ratio that we used today. In addition, carbon is a versatile and cheap source of fuel. Coal can be used as a solid fuel or converted into a gas to replace expensive imported fuels. (more…)
The largest use of coal today is in the generation of electric power by electric utilities. According to the U.S. Energy Inform ...
Coal use today is no longer evocative of dirty power plants with polluting black smoke billowing from their smokestacks. Many o ...
Power consumption from electricity is an essential element of the U.S. economy since the beginning of the century. Coal power plant ...
The gradual change in the energy consumption pattern of the United States from 1860 to 1990. In the mid-1800s, biomass, princi ...
Coal is an important energy source and energy consumption in United States as well as worldwide. It will remain so for many yea ...
Based on estimates of the U.S. Department of Energy, the energy used in homes accounts for 20% of all the energy consumption in the United States. The ability to control the indoor temperature is one of the most important achievements of modern technology. (more…)
Want state of the art LED lighting for your home? If so then this article will help to teach you about the many benefits to be gain ...
Take a look at the following energy saving ideas and new green products and see how many you can use to save your hard earned c ...
These days we have two main concerns in the world of business and finance. First the greenhouse global warming and second the finan ...
Nowadays, a lot more people are increasingly aware of the amount of energy they consumed everyday and what effect it was having ...
It is a reasonable and sensible action to tighten our belts and cut spending as living cost are climbing nowadays. We have to m ...
Energy is consumed by various segments of the economy, including households, commercial establishments, manufacturing enterprises, and electric power generators. Only a portion of total energy demand is sensitive to temperature changes. (more…)
Here, the sensitivity of energy demand to climate is measured two ways. The first method uses elasticities that provide simple summ ...
To determine the effects of past climate trends on global energy consumption, the econometric equations providing the degree day el ...
Establishing the impact of climate change on energy demand requires a measure of heating and cooling requirements. In the United St ...
Although the focus of many policy studies of climate change is on establishing the causal links between anthropogenic systems, emis ...
Climatologists generally agree that there is accumulating evidence that a warming trend has been occurring since the mid-1960s. The ...
Although the focus of many policy studies of climate change is on establishing the causal links between anthropogenic systems, emissions of greenhouse gases climate change, the line of causation also runs the other way. Short-term fluctuations in climate conditions, particularly in the temperate zones on the planet, affect energy consumption. If the popular expectation that the climate will become warmer becomes a reality, we can expect winters and summers that are warmer than those of the past. (more…)
Establishing the impact of climate change on energy demand requires a measure of heating and cooling requirements. In the United St ...
Here, the sensitivity of energy demand to climate is measured two ways. The first method uses elasticities that provide simple summ ...
To determine the effects of past climate trends on global energy consumption, the econometric equations providing the degree day el ...
Energy is consumed by various segments of the economy, including households, commercial establishments, manufacturing enterpris ...
Scientists study Earth’s climate not just from observation but also from a theoretical perspective. Modern-day climate models succe ...
Establishing the impact of climate change on energy demand requires a measure of heating and cooling requirements. In the United States, this measure is a degree day, which is defined in terms of an absolute difference between average daily temperature and 651F, which is an arbitrary benchmark for household comfort. Commercial heating degree days are incurred when outside temperatures are below 651F, generally during the winter heating season from October through March. (more…)
Here, the sensitivity of energy demand to climate is measured two ways. The first method uses elasticities that provide simple summ ...
To determine the effects of past climate trends on global energy consumption, the econometric equations providing the degree day el ...
Energy is consumed by various segments of the economy, including households, commercial establishments, manufacturing enterpris ...
Although the focus of many policy studies of climate change is on establishing the causal links between anthropogenic systems, emis ...
Climatologists generally agree that there is accumulating evidence that a warming trend has been occurring since the mid-1960s. The ...
Here, the sensitivity of energy demand to climate is measured two ways. The first method uses elasticities that provide simple summary measures of how departures from normal temperatures affect energy consumption. The second approach, reported in the following section, uses econometric simulation to estimate how climate changes affect energy demand. (more…)
To determine the effects of past climate trends on global energy consumption, the econometric equations providing the degree day el ...
Establishing the impact of climate change on energy demand requires a measure of heating and cooling requirements. In the United St ...
Energy is consumed by various segments of the economy, including households, commercial establishments, manufacturing enterpris ...
Climatologists generally agree that there is accumulating evidence that a warming trend has been occurring since the mid-1960s. The ...
Although the focus of many policy studies of climate change is on establishing the causal links between anthropogenic systems, emis ...
To determine the effects of past climate trends on global energy consumption, the econometric equations providing the degree day elasticities reported previously are combined into an econometric simulation model. The endogenous variables determined by the model include energy demand in the residential, commercial, and industrial sectors of the U.S. economy and the derived demand for primary fuels used in electric power generation. (more…)
Here, the sensitivity of energy demand to climate is measured two ways. The first method uses elasticities that provide simple summ ...
Establishing the impact of climate change on energy demand requires a measure of heating and cooling requirements. In the United St ...
Energy is consumed by various segments of the economy, including households, commercial establishments, manufacturing enterpris ...
Climatologists generally agree that there is accumulating evidence that a warming trend has been occurring since the mid-1960s. The ...
Although the focus of many policy studies of climate change is on establishing the causal links between anthropogenic systems, emis ...