Heat Pumps

A heat pump can be used in several industrial processes. Industrial plants have both waste heat flows and heat consumers. Waste heat flows are for example: waste water, hot humid air, condenser heat from refrigeration systems and others. Heat consumers are process water, central heating systems, blanchers, dryers, etc. For climates with moderate heating and cooling needs, heat pumps offer an energy-efficient alternative to furnaces and air conditioners. Much like your refrigerator, heat pumps use electricity to move heat from a cool space to a warm space, making the cool space cooler and the warm space warmer. During the heating season, heat pumps move heat from the cool outdoors into your warm house and during the cooling season, heat pumps move heat from your cool house into the warm outdoors. Because they move heat rather than generate heat, heat pumps can provide equivalent space conditioning at as little as one quarter of the cost of operating conventional heating or cooling appliances.

A heat pump is the most efficient heating machine on the market. A heat pump also acts as a central air conditioner in summer, giving you year-round comfort. A heat pump is an electrical device that extracts heat from one place and transfers it to another. The heat pump is not a new technology; it has been used around the world for decades. Refrigerators and air conditioners are both common examples of this technology. A heat pump transfers heat by circulating a substance called a refrigerant through a cycle of evaporation and condensation. A compressor pumps the refrigerant between two heat exchanger coils. In one coil, the refrigerant is evaporated at low pressure and absorbs heat from its surroundings. The refrigerant is then compressed en route to the other coil, where it condenses at high pressure. At this point, it releases the heat it absorbed earlier in the cycle. The heat pump cycle is fully reversible, and heat pumps can provide year-round climate control for your home heating in winter and cooling and dehumidifying in summer. Since the ground and air outside always contain some heat, a heat pump can supply heat to a house even on cold winter days.

Instead of making heat, a heat pump Las Vegas extracts it from the outside. Your refrigerator is a good example of a one-way heat pump. It removes heat from the air inside the refrigerator and moves it to the coils on the outside either back or bottom of the refrigerator. Ground-source heat pumps typically cost more to install than air-to-air heat pumps, but they are the most efficient heating choice because of their heat source-the earth itself. Ground-source heat pumps also may last longer than air-to-air models. There is less wear on the compressor because they operate over a narrower range of temperatures, following the uniform ground temperatures through the year.

In a study of air-to-air heat pumps performed elsewhere, after 10 or more years, more than half of the heat pumps were still in operation. Heat pumps are durable and for other reasons such as changing to a newer, more efficient, or different size.

Heater Pumps

A heat pump is an air conditioner that contains a valve that lets it switch between "air conditioner" and "heater." When the valve is switched one way, the heat pump acts like an air conditioner, and when it is switched the other way it reverses the flow of the liquid inside the heat pump and acts like a heater. There are four basic processes in the refrigeration cycle. All are important; the expansion valve is where the magic happens.

Whether you're using it for a refrigerator, air conditioner, or heat pump, achieving a low temperature is the key, and that's what the expansion valve does for you. The refrigerant is pushed through the expansion valve, and the temperature of the refrigerant drops -- a lot. So, that cold outdoor air is actually the warmer object then, when it comes in contact with the outdoor coil of your heat pump Las Vegas. And, as we know, heat likes to move from warmer objects to cooler objects. Once we get that heat from the air into the refrigerant, it's just a matter of bringing it into the house and then transferring it into your home's air.

Heat pumps are often described as “fridges working in reverse”. Energy in fridges is extracted from the enclosed interior of the fridge, keeping your food cool and using a tiny amount of electrical energy to power a small compressor. This extracted heat is “processed” and ultimately expelled at the back of the fridge via an element.

A heat pump uses an identical principle and strips energy from the atmosphere using the process of gas evaporation. Once compressed by the compressor cycle it is during its condensation phase that high temperature energy is exchanged into your under floor, radiator or hot water system. The diagram below shows the basic cycle.

Ground source heat pumps (sometimes called geothermal heat pumps) use two practical methods for harvesting energy. Air source heat pumps use an external fan unit to draw air across the evaporator unit, it exits at the back of the unit cooler than it entered. Water source heat pumps are so called as they are used in lakes, ponds and streams to harvest energy. “Open loop” and “closed loop” systems are used. Open loop systems can be likened to a hoover sucking up water and using this direct energy to transfer to the evaporator via a plate heat exchanger.

Heat pumps are often described as “fridges working in reverse”. Energy in fridges is extracted from the enclosed interior of the fridge, keeping your food cool and using a tiny amount of electrical energy to power a small compressor. This extracted heat is “processed” and ultimately expelled at the back of the fridge via an element.

A heat pump Las Vegas uses an identical principle and strips energy from the atmosphere using the process of gas evaporation. Once compressed by the compressor cycle it is during its condensation phase that high temperature energy is exchanged into your under floor, radiator or hot water system. The diagram below shows the basic cycle.

Heat pumps can be extremely efficient in their use of energy. But one problem with most heat pumps is that the coils in the outside air collect ice. The heat pump has to melt this ice periodically, so it switches itself back to air conditioner mode to heat up the coils. To avoid pumping cold air into the house in air conditioner mode, the heat pump also lights up burners or electric strip heaters to heat the cold air that the air conditioner is pumping out. Once the ice is melted, the heat pump switches back to heating mode and turns off the burners.