Archive for the ‘Geothermal Heating and Cooling’ Category

Geothermal heat exchanger

Posted on December 7th, 2010 by admin
Filed under Geothermal Heating and Cooling | 1 Comment

Geothermal heat exchanger is an essential part of a total geothermal heating system, just as important as the heat pump. Learn how earth thermal energy is delivered to the heat pump using geothermal heat exchanger coils, loops, etc. Geothermal heat exchanger is usually made of PVC shell and flexi-metal base, and is filled with special anti-freeze liquid which. A water pump circulates the heat exchanger liquid through the loops, delivering constant thermal energy from the ground and increasing the efficiency of the geothermal heat pumps. Geothermal Heat Exchanger There are two major types of geothermal ground heat exchangers: horizontal and vertical. Horizontal ground heat exchanger means that the pipes are buried in the ground in trenches. There can be single or multiple layers of pipe […]

How heat pump works

Posted on December 7th, 2010 by admin
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Discover the principal of heat pump operation and what makes a geothermal heat pump so energy efficient. How Heat Pump Works The exchange of energy in geothermal system is done by the heat pump – the device that works similar to the refrigerator. The heat pumps, refrigerators and air conditioners all work in the same manner: by pumping the refrigerant through a closed loop (ground loop in geothermal systems), that has two distinct temperature zones – cold and hot. There a few thermodynamic principles that are used in heat pump’s work. First of all the heat always flows from higher temperature zone to the lower. The heat pump reverses this natural flow making the heat flow from the lower temperature zone to the higher, and […]

Heat pumps

Posted on December 7th, 2010 by admin
Filed under Geothermal Heating and Cooling | 2 Comments

Heat pump basics – learn about heat pump principals: Ground source (geothermal) heat pumps are electrically powered systems that can provide cooling, heating and hot water much more efficiently and less expensively than conventional heating and air-conditioning technologies using ground’s relatively constant temperature. There are two main categories of ground source heat pumps – open loop, and close loop, but major part of all household installations is the closed loop system. The closed loop geothermal heating system circulates the water-based antifreeze solution through a series of pipes buried in the ground, transferring heat to or from the ground, depending on the mode heat pump is working in. During the summer season heat pump functions as air conditioner extracting the heat from the air inside the […]

Geothermal Equipment

Posted on December 7th, 2010 by admin
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Learn how to choose the right equipment for your geothermal heating systems. Discover which heat pump will work better and serve you longer, how many TONs or BTUs the heat pump should be and what type of geothermal heat exchangers to use. Geothermal Equipment 1. Heat Pump The heat pump itself is the most important part of any geothermal system and is responsible for extracting or rejecting the hot air to/from the ground. The most commonly used unit in geothermal systems is the single package water to air pump which is the size of the small furnace and has all necessary components pre-installed in it. The typical heat pump consists of refrigerant to water heat exchanger, refrigerant piping and control valve, compressor, air coil that […]

Geothermal Heating and Cooling

Posted on September 27th, 2010 by admin
Filed under Geothermal Heating and Cooling | 2 Comments

Geothermal heating and cooling is considered to be the most efficient way to keep you home comfortable. However, very few people actually know what geothermal really is, or how it work, and how much it costs. In this article we will look at basic principles of geothermal system operation and review residential geothermal heating and cooling system operation and installation costs. We will also review the cost of financing a new geothermal systems, compare your monthly payment against the money saved by switching from a conventional HVAC to geothermal. Basic principles of geothermal heating and cooling system operation: A geothermal heat pump system uses the ground you already own to heat and cool your home for less. Geothermal works by using the difference in temperature […]