A Heat Pump is a device that uses a small amount of energy available in the atmosphere to move heat from one location to another which is energy efficient and affordable. The new generation of heat pumps can deliver heat even in extreme conditions, with advanced systems rated as low as 30 degrees below zero.
These can also be connected to the hot water storage tanks of existing water heating systems. Particularly when connected to solar water heating systems, huge energy savings can be achieved. Thus this heat pump can be utilized either as the main source for water heating or as a backup system without disturbing the running condition of the existing one.
How does a Heat Pump Work?
It works on the principle of four phases of the reverse Carnot cycle. Major components of a heat pump water heater include a compressor, a refrigerant, two heat exchangers (a condenser and an evaporator), and an expansion valve.
Evaporator. It contains a liquid refrigerant that evaporates to gas and extracts heat from ambient air which is used to evaporate the water. Condenser: It compresses the fluid and increases its temperature which releases heat by condensing the refrigerant
Expansion: It reduces the pressure and temperature of the process fluid to below the level of outside air temperature in order to restart the cycle.
The basic components of a heat pump: The evaporator draws the surrounding air over the
evaporator find, the cold fluid circulating inside the evaporator extracts heat from the air and gets vapourised and moves into the compressor where the vapour is subjected to high pressure and high temperature. The cold water from the storage tank is made to circulate through a condenser, where the vapour which is of high temperature and under pressure transfers the heat to the cold water. The water gets heated and moves back into the storage tank. The vapour loses heat and condenses into a liquid. The condensed liquid is made to expand in an expansion valve, which lowers the temperature and pressure, and this cold liquid moves into an evaporator and snow ready to extract heat from the warm air this cycle is repeated
The heat pump automatically switches off when the temperature in the storage tank reaches the desired value. As the heat pump takes the heat from the surrounding area, its ability to extract heat from the air depends upon the heat content in the air. Therefore, in warm areas and during summer, the heat pump operates at higher efficiency and in colder months, the heat pump will operate at a slightly lesser efficiency. The heat pump efficiency is measured in a unit called “COP” (coefficient of performance). A typical heat pump’s COP would be between 2.5-4 depending on the season and other factors.
So, if you are planning to build your dream house, why wait? Just call our marketing team who will
help you to choose the best product that suits your needs As the Heat pump water heater is a centralised system, proper planning and designing of the piping circuit is essential. It is also important to involve our engineers right from the planning stage of your building so that a very efficient and best hot water distribution system is built for your dream house.