Geothermal heat pumps are used for space heating and cooling, and if so equipped, also to heat water. Their high efficiencies are gaining more and more popularity for both residential and commercial buildings. It's not hard to see why. Rather than obtain heat through the combustion of fossil fuels, geothermal heat pump use the natural existing heat from the earth's ground source.
Think of the temperature of the ground as that of a cave. Beneath the earth's surface, the temperature remains relatively constant. Simply put, a geothermal heat pump takes the heat stored in the earth and transfers it into your home or office. During the summer, it does the opposite by transferring the heat from your home or office back into the ground. In other words, the ground acts as a natural heat source in the winter and a heat sink during the summer months.
But how does this highly energy efficient geothermal heat pump do this? First, a series of pipes, called a 'loop,' are buried either vertically or horizontally deep in the group. A water or anti-freeze solution circulates through the surrounding soil absorbing the earth's heat, or in the summer, relinquishing heat.
During the winter, heat is removed from the fluid in the earth's connection, concentrated, and transferred into your home. The processed is reversed in the summer; heat is removed from your home, concentrated, and placed back into the ground. Voila! An energy efficient system that reduces greenhouse gas emissions, cuts your electric bill nearly in half, requires lower maintenance, and may even lower your hot water bill.
By Geothermalcredit
Before purchasing or using heat pump we have to know the benefits and the efficiency of a geothermal heat pump.By definition a geothermal heat pump or ground source heat pump is a central heating and/or cooling system that pumps heat to or from the ground.The efficiency of a ground source geothermal heat pump depending on how much the geothermal heat pump extracts ground heat in the winter (for heating) and transfers heat back into the ground in the summer (for cooling).
Showing posts with label investment. Show all posts
Showing posts with label investment. Show all posts
Tuesday, November 3, 2009
Monday, October 26, 2009
Geothermal Heat Pump-Looking To The Past Of Geothermal Energy
Geothermal energy is often viewed as a relatively new form of alternative energy. In truth, the use of geothermal energy stretches far back into the past.
Looking To The Past Of Geothermal Energy
Geothermal energy is literally, “earth heat”. This type of energy's name comes from two Greek words: “geo” meaning earth, and “therme”, which means heat. While it may seem that the use of geothermal energy is a relatively new idea, it is actually an ancient practice. Many different cultures have used geothermal power to their advantage, dating back to some of the Earth's earliest civilizations.
In order to use geothermal energy, the energy source itself must be tapped into. Geothermal energy comes from reserves of water located in the Earth's layer of magma. Magma, otherwise known as molten rock, is a super hot substance that springs directly from the Earth's core, which is a scalding 9,000 degrees Fahrenheit. Magma heats the reserves of water located in its midst to very high temperatures, around 700 degrees Fahrenheit. These geothermal reservoirs, as they are known, can be drilled into or can escape naturally through cracks in the Earth's crust. These natural formations create such places on Earth as hot springs and geysers.
Geothermal energy can be traced back to 10,000 years ago when Native Americans used geothermal water found in hot springs to cook and for use as medicine. The geothermal energy found in hot springs was also used by the Romans. The ancient city of Pompeii used geothermal energy to heat homes. Romans also were known to use geothermal water for its medicinal properties; such as in the treatment of skin and eye diseases. Romans and other ancient civilizations also used the soothing geothermal waters found in hot springs for relaxation and natural bathing places. In more recent times, France started using this type of energy in the 1960's to heat their homes. More than 200,000 homes in France are now heated by geothermal water.
Scientists and other researchers are constantly coming up with new ways to use the Earth's latent powers. While geothermal energy has not yet shown us all it can do, it is evident that many cultures have enjoyed its power already. From the comfort of a hot springs bath to the warmth of a geothermal water heated home, the Earth has just begun to use the energy contained within its crust.
By Richard Chapo
Looking To The Past Of Geothermal Energy
Geothermal energy is literally, “earth heat”. This type of energy's name comes from two Greek words: “geo” meaning earth, and “therme”, which means heat. While it may seem that the use of geothermal energy is a relatively new idea, it is actually an ancient practice. Many different cultures have used geothermal power to their advantage, dating back to some of the Earth's earliest civilizations.
In order to use geothermal energy, the energy source itself must be tapped into. Geothermal energy comes from reserves of water located in the Earth's layer of magma. Magma, otherwise known as molten rock, is a super hot substance that springs directly from the Earth's core, which is a scalding 9,000 degrees Fahrenheit. Magma heats the reserves of water located in its midst to very high temperatures, around 700 degrees Fahrenheit. These geothermal reservoirs, as they are known, can be drilled into or can escape naturally through cracks in the Earth's crust. These natural formations create such places on Earth as hot springs and geysers.
Geothermal energy can be traced back to 10,000 years ago when Native Americans used geothermal water found in hot springs to cook and for use as medicine. The geothermal energy found in hot springs was also used by the Romans. The ancient city of Pompeii used geothermal energy to heat homes. Romans also were known to use geothermal water for its medicinal properties; such as in the treatment of skin and eye diseases. Romans and other ancient civilizations also used the soothing geothermal waters found in hot springs for relaxation and natural bathing places. In more recent times, France started using this type of energy in the 1960's to heat their homes. More than 200,000 homes in France are now heated by geothermal water.
Scientists and other researchers are constantly coming up with new ways to use the Earth's latent powers. While geothermal energy has not yet shown us all it can do, it is evident that many cultures have enjoyed its power already. From the comfort of a hot springs bath to the warmth of a geothermal water heated home, the Earth has just begun to use the energy contained within its crust.
By Richard Chapo
Sunday, October 18, 2009
Residential Heating And Cooling With Geothermal Heat Pump
The term geothermal literally means Earth/Ground (Geo) Heat (thermal). Geothermal, or ground source heat pumps, take advantage of the constant ground or groundwater temperatures. These heat pumps use geothermal energy to heat and/or cool your home.
A refrigerant loop with a compressor extracts heat from one side (the ground) and pumps it to the heating loop in your home. It is essentially the same process that happens in your refrigerator: heat is extracted via a compressor and refrigerant loop from the inside of your refrigerator/freezer and rejected into your house.
In the summer the geothermal heat pump reverses its cycle, if you have an air-conditioning system, and heat from the home is rejected into the ground or ground water.
What makes geothermal heat pumps such a good choice for residential heating and cooling is that they do not depend on outside air temperatures. These heat pumps will heat your home as efficiently on a windy, zero-degree winter day as on a 40-degree day. Provided of course, that your house is well insulated and tight.
Geothermal heat pumps are also a very efficient way for heating and cooling your home. They use 25-50% less energy than conventional heating and cooling systems (Source: US DOE).
Residential applications of geothermal energy systems use water-to-water or water-to-air heat pumps.
Water-to-Water Geothermal Heat Pumps
Water-to-water geothermal heat pumps are generally used for heating only. They replace the gas or oil furnace that you might currently have to heat your home and water with.
It is important to know that heat pumps work most effectively when the temperature difference between the heat source (ground) and heat sink (floor heat or radiators) is small.
Ground temperatures range anywhere from 50 to 75 degF, depending on where you live. This means that geothermal heat pumps are generally not suitable for standard hot water baseboard applications, which are designed for heating water temperatures of 180 degF. Floor heat and low-temperature radiators require water temperatures in the range of 95 to 140 degF.
Some newer heat pump models are now equipped with so-called desuperheaters that can transfer excess heat from the geothermal heat pump compressor to the domestic water heater. Your geothermal heat pump can also effectively and quickly heat water for your bathtub, shower and sinks.
Water-To-Air Geothermal Heat Pumps
These types of ground source heat pumps are generally used when you need air conditioning. The Water is the heat sink, where you reject the heat from the house. The Air is the air that is distributed through your home via duct work.
Otherwise, these heat pumps function the same way as water-to-water heat pumps. And again, the efficiency of a geothermal heating and cooling system is far better than that of a traditional system.
Important To Know
The first step towards making a geothermal heat pump system be a reliable and efficient heating (and cooling) system for your home is to minimize the heating and cooling requirements with a well-insulated building envelope and strategically placed windows for passive solar gain.
Not only is your first cost reduced, because your system will be smaller. You will also tremendously increase the comfort of your home.
Geothermal heat pump systems are best designed and installed by professionals. It is not recommended to DIY. These systems must meet specific requirements. Especially the piping laid out in the ground, or down to the ground water table, must be designed and installed correctly to ensure that your geothermal heat pump system works as intended.
By Christiane Perrin
A refrigerant loop with a compressor extracts heat from one side (the ground) and pumps it to the heating loop in your home. It is essentially the same process that happens in your refrigerator: heat is extracted via a compressor and refrigerant loop from the inside of your refrigerator/freezer and rejected into your house.
In the summer the geothermal heat pump reverses its cycle, if you have an air-conditioning system, and heat from the home is rejected into the ground or ground water.
What makes geothermal heat pumps such a good choice for residential heating and cooling is that they do not depend on outside air temperatures. These heat pumps will heat your home as efficiently on a windy, zero-degree winter day as on a 40-degree day. Provided of course, that your house is well insulated and tight.
Geothermal heat pumps are also a very efficient way for heating and cooling your home. They use 25-50% less energy than conventional heating and cooling systems (Source: US DOE).
Residential applications of geothermal energy systems use water-to-water or water-to-air heat pumps.
Water-to-Water Geothermal Heat Pumps
Water-to-water geothermal heat pumps are generally used for heating only. They replace the gas or oil furnace that you might currently have to heat your home and water with.
It is important to know that heat pumps work most effectively when the temperature difference between the heat source (ground) and heat sink (floor heat or radiators) is small.
Ground temperatures range anywhere from 50 to 75 degF, depending on where you live. This means that geothermal heat pumps are generally not suitable for standard hot water baseboard applications, which are designed for heating water temperatures of 180 degF. Floor heat and low-temperature radiators require water temperatures in the range of 95 to 140 degF.
Some newer heat pump models are now equipped with so-called desuperheaters that can transfer excess heat from the geothermal heat pump compressor to the domestic water heater. Your geothermal heat pump can also effectively and quickly heat water for your bathtub, shower and sinks.
Water-To-Air Geothermal Heat Pumps
These types of ground source heat pumps are generally used when you need air conditioning. The Water is the heat sink, where you reject the heat from the house. The Air is the air that is distributed through your home via duct work.
Otherwise, these heat pumps function the same way as water-to-water heat pumps. And again, the efficiency of a geothermal heating and cooling system is far better than that of a traditional system.
Important To Know
The first step towards making a geothermal heat pump system be a reliable and efficient heating (and cooling) system for your home is to minimize the heating and cooling requirements with a well-insulated building envelope and strategically placed windows for passive solar gain.
Not only is your first cost reduced, because your system will be smaller. You will also tremendously increase the comfort of your home.
Geothermal heat pump systems are best designed and installed by professionals. It is not recommended to DIY. These systems must meet specific requirements. Especially the piping laid out in the ground, or down to the ground water table, must be designed and installed correctly to ensure that your geothermal heat pump system works as intended.
By Christiane Perrin
Investing in a Geothermal Heat Pump in a Heating System
Investing in a Geothermal Heat Pump System
You may or may not of heard of a geothermal heat pump system. If you have, than you have probably installing a system and seeing how it works. I’ll give you all the details what the system is, how it works and how much money can you save.
A GHPS is a system of pipes and tubes which run underneath a property and collect the warm air from the Earth and then transfer it to the home. No heat is created in the process, air is only transported from underground to above ground. This system can be used to cool or warm up the house depending on the needs of the consumer. The tubes collect the air from underground and then run parallel to your floors and release the free heat into the surrounding room.
A series of tubes, connected to a device called a heat pump, run underneath a home underground. These tubes are filled with a liquid, normally some sort of refrigerant, and the whole system works just like the tubes in a refrigerator. The tubes transport the liquid underground and then back up where they enter the heat pump. The pump then removes the heat from the liquid and the liquid enters the pipe system to once again receive the heat from the Earth. The heat removed from the pipes enters the house and warms it up. This process is reversed in the winter to cool down your home.
There are plenty of reasons why to use a geothermal heat pump system. In the long run it will save you money. The step up cost is large but after a few years, 2-10 on average, you will have saved much more money and evened up the costs of heating had you stayed with a conventional system. They provide a free source of constant heating that will never run out. They are quiet. It can be installed inside a home rather then having components built up in the outdoors, or having an air conditioner leaning out your window. The system is very clean and the average family can reduce their carbon footprint by 2.5 to 5 tons of CO2 per year. It quite low maintenance and the pipes don’t have to be cleaned out by any unnecessary means such as removal of the pipes. It has many uses such as heating up your floors, keeping your driveways and walkways snow free in the winter, hot water for appliances and hot water for any uses.
A system can save you 35-70% of your energy costs per year. From 400-1400$/Yr. As well as yearly savings, the resale value of a home can increase by over 20 000$ on average.
For a typical 2000 sq. ft. home, a system can cost from 5000 to 12000$. On average, a typical geothermal system costs 10000$ to install for the first time. Many states and government programs offer incentives to buying and installing a system that will reduce the cost. As well as maintenance is rather cheap and rare in between. Systems typically last over 30 years before components need to be replaced.
We don’t want anyone going into long-term debt with the massive initial cost of the system, however if you plan accordingly the amount of money you’ll get back by the system will be enormous. You’ll be doing yourself a good deed in saving a lot of money in the long run, and you’ll also be doing the Earth a good deed by reducing your carbon footprint. The initial cost of a system may be large, but the overall savings are greater.
Article source David Pierson
You may or may not of heard of a geothermal heat pump system. If you have, than you have probably installing a system and seeing how it works. I’ll give you all the details what the system is, how it works and how much money can you save.
A GHPS is a system of pipes and tubes which run underneath a property and collect the warm air from the Earth and then transfer it to the home. No heat is created in the process, air is only transported from underground to above ground. This system can be used to cool or warm up the house depending on the needs of the consumer. The tubes collect the air from underground and then run parallel to your floors and release the free heat into the surrounding room.
A series of tubes, connected to a device called a heat pump, run underneath a home underground. These tubes are filled with a liquid, normally some sort of refrigerant, and the whole system works just like the tubes in a refrigerator. The tubes transport the liquid underground and then back up where they enter the heat pump. The pump then removes the heat from the liquid and the liquid enters the pipe system to once again receive the heat from the Earth. The heat removed from the pipes enters the house and warms it up. This process is reversed in the winter to cool down your home.
There are plenty of reasons why to use a geothermal heat pump system. In the long run it will save you money. The step up cost is large but after a few years, 2-10 on average, you will have saved much more money and evened up the costs of heating had you stayed with a conventional system. They provide a free source of constant heating that will never run out. They are quiet. It can be installed inside a home rather then having components built up in the outdoors, or having an air conditioner leaning out your window. The system is very clean and the average family can reduce their carbon footprint by 2.5 to 5 tons of CO2 per year. It quite low maintenance and the pipes don’t have to be cleaned out by any unnecessary means such as removal of the pipes. It has many uses such as heating up your floors, keeping your driveways and walkways snow free in the winter, hot water for appliances and hot water for any uses.
A system can save you 35-70% of your energy costs per year. From 400-1400$/Yr. As well as yearly savings, the resale value of a home can increase by over 20 000$ on average.
For a typical 2000 sq. ft. home, a system can cost from 5000 to 12000$. On average, a typical geothermal system costs 10000$ to install for the first time. Many states and government programs offer incentives to buying and installing a system that will reduce the cost. As well as maintenance is rather cheap and rare in between. Systems typically last over 30 years before components need to be replaced.
We don’t want anyone going into long-term debt with the massive initial cost of the system, however if you plan accordingly the amount of money you’ll get back by the system will be enormous. You’ll be doing yourself a good deed in saving a lot of money in the long run, and you’ll also be doing the Earth a good deed by reducing your carbon footprint. The initial cost of a system may be large, but the overall savings are greater.
Article source David Pierson
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