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What is an Air Handling Unit (AHU) and Its Function?

An air handling unit is equipment that is commonly used to supply fresh air to various areas within a building. The trend of installing AHU units is not limited to commercial settings but has delved into homes, businesses, offices, and any place where HVAC functions.

Here is an overview of key features and details about air handling units

Key Air Handling Unit Functions

An air handling unit is a significant part of HVAC systems which is used for regulating temperature and ensuring optimal indoor air quality. Here are some of the most important air handling unit functions:

AHU units manage ventilation by:

Taking in outdoor air and indoor air

Filtering it

Adjusting temperature and humidity levels

Distributing conditioned air to different rooms.

These units are ideal for environments with strict hygiene standards, such as healthcare and manufacturing industries.

AHU units are particularly suitable for spaces where occupancy is high and natural ventilation is low.

AHUs can effectively ventilate spaces with underfloor heating.

Where Should AHUs be Installed? 

AHUs can be installed indoors and outdoors, depending on the requirements of the HVAC system. You can place the AHU outside the building to reduce noise levels.

You can also place the units inside for easier maintenance and better control over the indoor environment.

What are the Main Air Handling Unit Components?

An AHU comprises the following Air Handling Unit Components:

A Coma housing or cabinet containing a blower or fan.

Filters that remove externalities from the air and air purification systems.

Heating or Cooling Coils that adjust the air temperature as it passes through the system.

Humidifiers or Dehumidifiers to manage the humidity levels of the air.

Fans to circulate the air through the HVAC system.

Heating or cooling elements such as coils or heat exchangers

Dampers to regulate airflow.

Connection to the ductwork to distribute conditioned air to different areas.

How do AHUs Operate?

The primary goal of an AHU is to maximize energy efficiency. It captures waste heat and recycles it through heat exchanger coils. This process reduces the workload on heating coils and manages energy consumption.

During the cooling process, indoor and outdoor air are mixed to minimize the temperature contrast when reaching the cooling coil. This allows the unit to produce cool air using minimal energy.

Here is a step-by-step process describing how an air-handling unit functions:

Step 1 - Air Intake

This is where outside air is drawn in, filtered, and then distributed throughout the rooms. It can also draw in recycled indoor air.

Step 2 - Filtration

The air filtration system can capture air pollutants, depending on the desired air quality. Regular filter replacement is necessary.

Step 3 - Blower or Fan

This mechanical device pushes the air out of the AHU and into the ducts, from where it is distributed into the rooms.

Step 4 - Heat Exchangers

These Air Handling Unit Components help transfer heat between two fluids—air and coolant—through a solid barrier.

Step 5 - Cooling Coil

The coil cools the air passing through this unit. This process may produce water droplets, which are collected in a condensate tray that is well-equipped with a droplet separator.

Step 6 - Silencer

These materials significantly reduce the noise level generated by the AHU during operation.

Step 7 - Plenums

Lastly, Plenums are positioned in void areas to ensure uniform airflow throughout the system.

Principle of Operation of an Air Handling Unit

The operation of an AHU follows a simple repetitive cycle:

Drawing in the air from outside

Passing the air through a series of filters to remove any impurities

Heating or cooling the air to the desired temperature by passing through coils.

Distributing the conditioned air through ductwork.

HMX, a business unit of A.T.E., uses the highly successful DAMA technology, and follows these 12 principles:

Air pre-filter

Air blower

Filtered ambient air

HE1 - sensible heat exchanger for cooling air without adding water

Primary supply air is cooled without the addition of water

Secondary exhaust air is used to cool the primary supply air in the sensible heat exchanger

HE2 - adiabatic heat exchanger for cooling air

Conditioned air at the machine outlet

Water supply pump for HE1

Water supply pump for HE2

Water sump

Return of water from HE1 and HE2 to sump

Types of Air Handling Units

In terms of space, there are two primary categories of AHUs: packaged units and modular units. Packaged units are usually installed in smaller residential or commercial structures, whereas modular units are typically employed in larger industrial or commercial settings.

Additionally, AHUs can be classified into:

Horizontal and Vertical Units

Draw-through and Blow-through Units

Outdoor Air or Mixing Units

Single-Zone and Multi-Zone Units

Rooftop and Indoor Units

Custom-Built and Field-Built Units

Conclusion

One advantage of AHUs is the ability to install multiple units at a single outdoor location. It's crucial to have backup AHUs installed. AHUs can be set up inside or outside to reduce maintenance efforts and costs.

[food-finance-technology]

Explore How Mutual Funds Works | What is Mutual Funds?

Mutual funds are investment companies that pool money from many investors to purchase securities.

It is a trust that collects money from a number of investors who share a common investment objective. Then, it invests the money in equities, bonds, money market instruments and/or other securities. Each investor owns units, which represent a portion of the holdings of the fund.

To know more about Mutual Fund Investment visit Mutual Fund Sahi Hai

[food-finance-technology]

Utilization and Health Benefits of Peanuts in UK

Peanuts have a wide range of culinary applications and may add a delightful nutty flavor and crunchy texture to a variety of recipes. Bring something special and make peanut goods healthy for you.

Whole peanuts are typically used in cooked foods and snacks, from curries to sweet confectionery. Blanched peanuts are particularly popular for this use, as peanut skins can crumble into dishes and affect their appearance.

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Check Out Retail Management Jobs at Boots | Retail Manager Jobs

Boots is hiring Store Managers, General Managers, and Assistant Managers. Retail management jobs involve a dynamic and complex commercial career. These positions entail controlling retail outlets' daily operations, guaranteeing pleasant client experiences, optimizing inventories, and managing personnel. Successful retail managers are not only merchandising and sales professionals, but also skilled leaders who encourage and guide their employees.

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Check Out SIP Calculator - Calculate Returns on SIP Investments

Systematic Investment Plan or SIP calculator helps you determine the returns you can avail on your monthly SIP investment.

The SIP calculator helps you calculate the wealth gain and expected returns for your monthly SIP investment. You get a rough estimate on the maturity amount for any monthly SIP, based on a projected annual return rate.

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Top Quality Bold Peanut Supplier in India | Agrocrops

Pick a peanut at random, and it will almost certainly be a Runner. Runners, also known as Bold peanuts, are the most common kind in the world and are farmed extensively in the Western Hemisphere.

Bold peanuts, which have many similarities to Virginia peanuts, are utilised in bulk processing such as oil crushing, roasting, and blanching.

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Mirum India is an award-winning digital marketing company in Mumbai. As a leading digital marketing company, it offers SEO, Healthcare Marketing, Creative Services, and more services.

Mirum’s Digital Marketing Company can be effective in any sector, regardless of the products or services your business offers. It focuses on audiences with a global reach and allow your brand to target a more niche audience.

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HMX has the world’s largest installed base of indirect evaporative cooling system. HMX has provided effective and cost-effective cooling solutions for varied industries at A.T.E. India. The core technology of HMX is the next-generation DAMA heat exchanger. DAMA stands for ’Dry Air and Moist Air’. The DAMA heat exchanger is a cross-flow, plate-type polymeric exchanger.

[food-finance-technology]

Know More About Mutual Fund Dividend | Mutual Funds Sahi Hai 

A Dividend is a distribution of earnings from a stock or a Mutual Fund. In Mutual Fund schemes, dividends are distributed when the fund has booked profits on the sale of securities in its portfolio.

Mutual Fund Dividends are declared as a percentage of the scheme’s face value (FV), and not the NAV. If FV per unit is Rs. 10 and dividend rate is 20%, every investor in the dividend option gets Rs.2 as dividend.

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Agrocrops is largest peanut exporter Worldwide. It provides the best quality of China peanuts. It has been in the global peanut business for over 55 years. It also handles more than 150,000 tons of peanuts a year.

With thousands of customers worldwide, including in the challenging Japanese market, AgroCrop sets industry benchmarks by integrating every part of the peanut process.

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Axis Valence provides a range of quality and electro-mechanical systems and accessories for industrial applications. Axis Valence is a business unit of A.T.E. provides a range electro-mechanical systems and accessories for industrial applications.

[food-finance-technology]

Pharmacist & Relief Pharmacist Jobs at Boots

There are a wide range of job openings for pharmacists, including Relief Pharmacists , Newly Qualified Pharmacists and Pharmacy Managers. Join Boots and grow your pharmacist career. Explore various Pharmacist openings at Boots which will give you advance career experience. Find the latest pharmacist openings at Boots.

[food-finance-technology]

Mutual fund dividend is distribution of earnings from a stock or mutual fund scheme. Dividends are the investor's portion of company's profits.

Dividends are declared as a percentage of the scheme’s face value (FV), and not the NAV. Dividends from mutual fund schemes have been made taxable in the hands of investors.

[food-finance-technology]

Finedge ensures you to meet your investment objectives. Investment managers and mutual fund distributors use top-of-the-line technology, knowledge and processes. Mutual Fund distributors earn income in the form of commission from mutual funds investment. They understand the investor's situation, risk tolerance levels, and financial goals to suggest a suitable plan for them. It provides the best mutual fund advisor online.

[food-finance-technology]

Financial planning firm FinEdge will assist you with all your investment planning. Online Investment Planning will guide you step by step on making your investment. All your investments through FinEdge will be linked to clearly defined goals. Your Investment Manager will help you avoid investing decisions that are based on greed and fear.

[food-finance-technology]

Mirum’s Digital Marketing Services can be effective in any sector, regardless of the products or services your business offers.

Mirum India is an award-winning digital marketing agency in Mumbai. As a leading digital marketing company, it offers SEO, Healthcare Marketing, Creative Services, and more services.

[food-finance-technology]

Apply For Dispensing Opticians & Optical Assistant Jobs at Boots

Looking for an optical support role? Boots Opticians has a range of positions available, from Opticians Retail Assistant to Optical Consultant and Dispensing Optician jobs.

As a Dispensing Optician or Optical assistant you will be face to face with our customers and patients, building great relationships, offering advice and helping them to select the eyewear that is right for them.