Heat Pumps and Heat Recovery Systems

All systems operating on refrigeration cycles are essentially pumping heat — they extract heat from one medium (a source) and transfer it, along with the driving energy input to the system, to another medium (a sink) at a higher temperature. In most cases, the primary purpose of such systems is to cool a space or process medium by removing heat. The heat is, thus, a waste product that must be rejected.

In cases where systems are specifically designed to absorb heat and transfer it to serve a heat requirement, they are commonly referred to as heat pumps. Heat pumps can provide heating only, simultaneous heating and cooling, or alternate heating and cooling.

Refrigeration cycle heat recovery systems recover the heat that would otherwise be rejected through the condenser system or heat sink, and transfer it to serve a heat load. These systems operate only when there is a simultaneous cooling load to serve.

Renewable Energy 101

Renewable Energy 101

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.

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