Importance of ducts

Duct leakage causes not to produce enough cold air which can sap 20 to 40% of the energy out of even a well-operating air conditioner, if the ducts pass outside the cooled space (attics, crawlspaces and garages). Ducts outside has to be proper insulated either by a keen home owner or a professional contractor.

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Ventilation

An ideal air conditioner should heat, cool, clean, ventilate, humidify and dehumidify as needed to provide health and comfort. The second most important objective of air conditioning is to provide ventilation.

Without sufficient ventilation, contaminants generated indoors can lead to health and comfort problems. It is recommended to have at least enough ventilation to exchange the air inside house once every four hours, depending on house design.

Older homes have the tendency to have leakier walls and leakier ducts and typically obtain sufficient ventilation through such leakage. These leakage and infiltration may not be the most energy efficient method to ventilation and is an opportunity for savings.

Most new homes and some existing homes are relatively tight.  Hence, they need mechanical ventilation to meet minimum ventilation requirements.

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Heat versus humidity

Humidity control was the problem that originally stimulates the need for air conditioning. Lack of humidity control in hot, humid climates can lead to mold growth and other moisture-related problems. High indoor humidity can cause health and comfort problems.

Modern air conditioners dehumidify as they cool which can be seen on the water that drains away, but this dehumidification is incidental to their main job of controlling temperature, which cannot separately control both temperature and humidity.

In hot, humid climates the incidental dehumidification that takes place may not always be enough to keep the indoor humidity conditions suitable. Professional recommends roughly a 60% relative humidity maximum at 78F.) The maximum dehumidification occurs not at the hot times of the year when the air conditioner is running a lot but at mild times of the year when the air conditioner runs very little.

Although there are some leading edge air conditioning systems that offers to independently control humidity, conventional systems may not be able to adequately control the problem and can cause discomfort or mold problems in particular conditions. Some modern high-end systems have enhanced dehumidification, but when the existing system cannot amply dehumidify, it may be important to acquire a stand-alone dehumidifier.

Lessen the need for dehumidification:

Avoid setting the thermostat to the “fan on” position. In this position, the fan blows air continually whether the cooling system is running or not, and one key impact is that a lot of the moisture the system just took out of the air is blown back into the house before it can drain away.

Use exhaust fans on moisture-producing activities. Cooking, bathing, washing, and identical endeavors produce a lot of moisture inside the house. Drain that moisture directly outdoors by a fan. Likewise, avoid drying clothes indoors except with a clothes dryer that is drained directly outdoors.

Avoid opening the windows or use ventilative cooling when it is too humid outside.

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10 Significant Tips on Maximization of Air Conditioning Efficiency

Air conditioning may be a luxury for others, but a necessity to some.  Considering the expense of the equipment and the power to run it, consumers of this equipment need an awareness that would assist to be able to take care of it and use it suitably.

Developed in 1908, the first functional characterization of air-conditioning was defined by G. B. Wilson which Willis Carrier, the “father of air conditioning” employed, which was formulated to:

• Sustain appropriate humidity in all areas of a house/building.
• Free the air from unnecessary humidity on particular periods.
• Supply a permanent and sufficient distribution of ventilation.
• Proficiently take out from the air micro-organisms, soot, dust, and other foreign bodies.
• Capably make room air cold on specific periods.
• Heat the rooms during winter.
• Provide an apparatus that is cost-efficient in acquisition or after-sales.

Now let’s find out the 10 noteworthy reminders on optimization of air conditioning efficiency:

1). How does cooling process take place in air conditioner?

  

2). Ton of Cooling

  

3). Regulating costly repair on poor ventilation

  

4). The role of air conditioner filters

  

5). System Maintenance

6). Importance of ducts

7). Increasing energy efficiency

  

8). Reducing the internally generated loads air conditioner must deal with

9). Ventilation

10). Heat versus humidity

  

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Source: Top Ten Things Consumers Should Know About Air. Conditioning, https://www.ashrae.org/resources--publications/free-resources/top-ten-things-about-air-conditioning