In this Article, we will see about the Emerging trend in HVAC. Thermally Driven Air Conditioning system.

Thermally Driven Air Conditioning system - Emerging Trend in HVAC

Which is the most recent air conditioning innovation? 

Thermally determined forced air systems are the new and arising air conditioning innovation zeroed in on the supportable development drive. The forced air systems are energy proficient and an extraordinary option in contrast to the traditional cooling System.

Current cooling systems utilize profoundly proficient electrically determined blowers to create refrigeration and afterward cooled air. While profoundly proficient, these systems run on power which is costly, especially at summer busy times when request is most noteworthy.

Solar enhanced systems

The utilization of thermally determined chillers is a cheaper option in contrast to electrically determined cooling . these chillers can use sun oriented power of sun to drive them and can be enhanced with modest petroleum gas. the most proficient of these systems utilizes twofold impact chillers however requires high temperatures (around 350 degree fahrenheit) as a driving temperature. 

Thermoelectric module (TEM)

A thermoelectric module or TEM consists of two different materials that generate electricity when exposed to varying temperatures. One side of the device is exposed to a higher temperature than the other side, causing electrons to move across a barrier between the two sides. In a cooling cycle, the hot side becomes hotter than the cold side, while in a heating cycle the opposite occurs. This type of technology requires little maintenance, and its efficiency remains high even under extreme conditions. As long as water is present, the TEM will continue to produce electricity efficiently. TEMs have been successfully implemented in many applications including air conditioning systems.

Heat pump

A heat pump uses the same principles as a refrigeration unit does, however, it transfers heat instead of transferring coolness. A heat pump consists of two parts, a compressor and expansion valve. The compressor compresses and heats gas until it reaches a critical point where liquid turns back into a gas. Then the expansion valve releases the compressed gas into the environment. After the condensed gas travels inside the pipes, it's cooled down and returns to its liquid form, repeating the process. The end result is that the outside environment is warmed, whereas the interior of the space stays at a cooler temperature.

A heat pump is an electric device that takes heat from outside air and moves it into a building where it is then released back into the home. This process reduces the usage of heating and cooling systems. A heat pump uses electricity to move refrigerated water. This is called the primary refrigeration cycle. Then, once the heat is moved in, it travels thru copper tubing to the evaporator coil. The air being circulated goes directly over the coils before returning into the house. As the cool air flows over the coils, the temperature is lowered. Once the air returns inside, the cooled air is passed through a condenser coil, where the heat is transferred to water. The water is then pumped back to the compressor via pipes. After the compressor receives the cooled water, it creates suction pressure and turns the fan motor on. Thus, the fan circulates the air around the room.

Temperature Controller

The controller regulates the output of the unit based on the set point that is selected. This means that the units output will change depending on whether the desired temperature is higher than or lower than the setpoint. If the temperature is above the selected point, the unit will run faster until the desired temperature is reached. If the temperature is below the selected point, the opposite occurs.

Evaporator Coil

Every single evaporator coil contains thousands of microscopic holes. These tiny holes allow air to pass through the coil while keeping water droplets away from the coils. As the air passes through the coil, it absorbs moisture from the ground.

Condensate Drain

Condensation drains water from the coils. Since they do not have much open space between them, if any, the water would collect at the bottom. Therefore, the drain hole is used to release the excess water. To prevent corrosion in the coils, the drain pipe is often made out of stainless steel.

Fan Motor

This is the motor that drives the fan blades. Depending on the size of the unit, the motor could either be belt driven or direct drive. Direct drive motors require maintenance less frequently. However, belt drive requires inspection and replacement of belts if not properly maintained.

Compressor Motor

These motors help the compressor to generate sufficient suction pressure. When water enters the compressor, the pump impeller begins to rotate. Because of friction, the speed of rotation increases. At some point, the impeller reaches its maximum speed and is unable to rotate anymore. Therefore, the compressor stops turning and generates suction pressure.

Suction Line

Suction line is the tube that connects the compressor to the blower. When the blower runs, it pushes the air through the tube. The result is a stream of cold air entering the ductwork.

Benefits of using Thermally driven Air conditioning systems

Lower Expenses: Gas costs are low today and it are high to top power costs. Thermally determined chillers give cooling at lower enegy costs than can electrically determined blowers. This is on the grounds that they utilize sun powered and gas to run them, not power. Power costs are hence disposed of and request charges are decreased.

Sunlight based Viable: Thermally determined chillers are additionally viable with proficient solar panels  which permit critical balances in gas utilization and better ecological execution.

Baseload Capacity: Thermally determined chillers can be terminated with sun powered or gas. The mix of the two energy sources implies that these chillers can fulfill firm cooling load factors with no reinforcement required.

Dependable: Thermally determined chillers have not many complex components and a far longer plan life than electrically determined mechanical fume blowers. What's more, Solar Panels are likewise dependable, giving a feasible on location energy source that is upheld by petroleum gas which isn't inclined to power outage or pinnacle summer request constraints.

Proficient: Sun based driven twofold impact chillers give more cooling than relative photovoltaic frameworks can. For a given rooftop region, undeniably more chilled water can be provided to the structure utilizing a warm methodology. Squander intensity can be collected effectively too and utilized as 'free' pool or DHW pre-warming where suitable.