Electric Heat Pump

Electric  Heat Pump
 
A heat pump is a device that transfers heat energy from a source of heat known as a thermal reservoir. Heat pumps transfer thermal energy in the opposite direction of a heat transfer, absorbing heat from a cool place and releasing it into a hot water. A heat pump uses external power to accomplish the task of transferring energy from a heat source to a heat sink. The most common design of a heat pump consists of four main components - a condenser, an expansion valve, an evaporator and a compressor. The heat transfer medium circulated through these components is called refrigerant.

Working of Heat Pump 

Technically, a heat pump is a mechanical-compression cycle refrigeration system that can either be converted to heat or cooled to a controlled location. Think of a heat pump, which, depending on the weather, the heat transporter continuously transmits hot air from one place to another where it is needed or not. Even in air that feels very cold, heat energy is present. When it cools outside, a heat pump exits which heat is available outside and transfers it inside. When it is hot outside, it reverses directions and acts like an air conditioner, removing heat from your home.
Note that heat pumps are best for moderate climates, and low temperatures may require a supplemental heating source. As a year-round solution for home comfort, crane heat pumps can become an important part of your matching system. If a heat pump system is right for you, an independent crane dealer can help you decide.
Electric  Heat Pump

Terminology of Heat Pump 
Electric  Heat Pump flow of heat

the heat pump is a reversible process of engine. different is just one thing in engine work provided but in heat pump  work done to run the system.
in heat pump heat transfer is low temperature to high temperature.  The function of a heat engine is to generate work using a heat source. In a heat engine, a high-temperature T2 heat source is used to obtain energy output as the work W to the heat input Q2. However, at lower temperatures T1 there is an amount of heat Q1 that must be removed The heat sink to meet the first law of heat dynamics. The first law of thermodynamics is the conservation of energy law, and can be written as follows (see Figure 1):
[1] Q2 = | W | + | Q1 |

Unlike a heat engine, the function of a heat pump is to lift a certain amount of heat Q1 from a heat source into a heat sink at a high temperature level T1 above high temperature level T1. However, to satisfy the first law of thermodynamics, heat must be upgraded by the W supplied to the machine. Following this and Fig. 1, it can be seen that the amount of heat drawn from the heat source from Q2 to the heat sink is the sum of the heat Q1 and W required in this process, and the first law of thermodynamics is described. [1] by eqn, is accomplished.

As already mentioned, a heat pump is used to supply heat Q2 at high temperature T2. In contrast, a refrigerator is used to remove heat Q1 at low temperature T1. This means that the function of a refrigerator is to cool a given heat source to a certain amount of heat Q1 from this source (at a low temperature 1 second). To satisfy the first rule of thermodynamics, as a heat pump, the work W must be supplied for cycling to remove heat from the heat source and the heat must be removed at high temperatures. In practice, the functions of both heat pumps and refrigerators can be combined into one machine, when both heating and cooling are required simultaneously. For example, such conditions can be found in a sport center where some chillers are used to cool the ice skating area as well as they provide heat for hot water for swimming pools, heat pumps.

Main Part of Heat Pump

A heat pump has two main components: an indoor air handler and an outdoor unit similar to a central air conditioner, but known as a heat pump. The outdoor unit has a compressor that circulates the refrigerant that absorbs and releases heat as it travels between the indoor and outdoor units.

Principle of Heat Pump 
Electric  Heat Pump heat transfer dia

Heat pumps use the physical properties of a volatile evaporator and condensing fluid as a refrigerant. The heat pump compresses the refrigerant to the edge to heat it, and releases pressure on the side where the heat is absorbed.

Different Between Heat Pump and Electric Heater 

Heat Pump -
  1. it transfer heat one place to another place. 
  2. electric is use indirectly to run system
Electric Heater - 
  1. it generate heat by use of electric.
  2. electric use as main source 

Disadvantages

  1. High upfront cost
  2. Difficult to Install
  3. Questionable Sustainability
  4. Significant Work
  5. Cold weather
  6. Carbon neutral
  7.  Planning Permissions

Advantages

  1. Lower Running Costs
  2. RHI Scheme
  3. Long life-span
  4. Provide Cooling
  5. Carbon emissions
  6. Safety
  7. Less Maintenance

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