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Mayıs 7, 2021

Fancoil Devices and Usage Types

Fancoil Devices

Fancoil units are heating and cooling devices used in air conditioning systems that operate by circulating indoor air. Similar to other products that circulate indoor air, these units pose a risk of circulating harmful organisms present in the space during operation.

Considering fancoil units and the systems they are used in, we can evaluate them in various ways.

Fancoil Usage Types

  1. 1. Products installed concealed within the suspended ceiling, with a short duct connection to the space.
    2. Self-contained units installed in the ceiling to remain within the space.
    3. Cassette type products installed in the ceiling, with some part remaining within the space and some part in the suspended ceiling, blowing in 4 or 2 directions.
    4. Self-contained units installed at floor level to remain within the space.
    5. Products installed concealed at floor level (underfloor), with a short duct connection to the space.
    6. Self-contained units mounted on the wall above human level, to remain within the space.

Fancoil Fresh Air Connection

  • 1. Primary air + fan coil systems where fresh air is freely introduced into the fan coil unit’s intake.
    2. Primary air + fan coil systems where fresh air is supplied to the space independently of the fan coil unit.
    3. Fan coil systems that do not use fresh air.

In primary air + fan coil systems, the fresh air rate should be controlled, and it should be ensured that the primary air is provided correctly.

In fan coil systems used in conjunction with fresh air systems, it would be appropriate to use fresh air systems for heating and cooling purposes as much as possible without running the fan coils. Ensure that the necessary maintenance and precautions for fresh air systems are taken for this application.

If fresh air is directly supplied to the indoor environment independently of the fan coil unit, it is appropriate to retrofit or add ductwork so that the fresh air passes through the fan coil unit. In this setup, the fan coils can operate at low speed to cool or heat the fresh air using the coils of the fan coil units before delivering it to the space. Despite potential heating/cooling capacity loss and discomfort, this approach can reduce the level of portable particles and maintain low air movement within the space.

In systems without fresh air applications, spaces need to be ventilated frequently. In such cases, fan coils should not be operated without precautions.

Mayıs 2, 2021

What is Electrostatic Filter and How Does It Work?

Electrostatic Filters are among the most critical components in ecology units. They are responsible for precipitating most dust and oil particles, abbreviated as ESP. The diagram below illustrates how an electrostatic filter operates. As air passes through an ionizer, particles within the air are ionized by negatively charged plates. The negatively charged particles from the ionizer then pass between collector plates. These collector plates are arranged as negatively potentialized and grounded plates. The negatively charged particles are repelled by the negatively charged plates and adhere to the grounded plates. Over time, the particles separated from the airflow settle down the plates and accumulate in the collector tray.

Electrostatic filters gain their particle capture capability from high-voltage units. Operating in the range of 12-18 kV, these units facilitate the creation of the planned voltage between the plates.

 

 

 

 

 

 

The dirty air drawn by the fan passes through a washable metal pre-filter, which captures coarse dust and oil particles. Then, the air containing oil, smoke, and soot enters an electrostatic filter based on the principle of ionization.

In the electrostatic filter, the oil, smoke, and soot particles in the air become negatively charged due to high-voltage charge.

The negatively charged dirty air then passes through a positively charged area in the second stage, where the oil, smoke, and soot particles in the air are strongly attracted and adhered to the collector plates. The air that enters the electrostatic filter as dirty exits cleaned.

Electrostatic filters can be cleaned and used for years by cleaning them when they become dirty.

Electrostatic filters are up to 99 per cent efficient in filtering smoke.

Electrostatic filters are used in food plants and industrial plants to filter gases generated during the manufacturing stages;

They are used in all machines and areas where smoke is unwanted, such as:

– Kebab grills
– Doner grills
– Barbecues
– Grills
– Ovens
– Kitchens
– Dining halls
– Industrial presses
– Laser cutting machines
– Welding machines
– Injection machines
– Digital printing centers
– Printing houses
– All industrial machines
– Laboratories
– Smoking rooms

Mayıs 1, 2021

What are Ecology Units and Why Are They Used?

Ecology units are ventilation devices designed to clean oily and dirty kitchen air before it is discharged outside through kitchen exhaust systems. With the increase in environmental problems in the 21st century, there have been serious restrictions on the discharge of industrial waste into the environment, especially on the emission of flue gas and kitchen exhaust systems. Some particles and Volatile Organic Compounds (VOCs) emitted from kitchen exhaust systems contribute to pollution. Therefore, in many countries, regulations issued by Environmental Ministries prohibit the emission of odorous gases into the atmosphere.

The ‘all-in-one’ concept introduced in large cities for living spaces causes some problems in air quality. This is due to the intensive kitchen exhausts from dining areas in new living projects and large restaurants, affecting the health of people in homes, restaurants, hotels, and indoor spaces located very close to living areas.

Without precautions, the accumulation of substances such as grease, soot, and smoke in exhaust duct equipment during cooking increases the risk of fire over time. In addition to the fire hazard, the buildup of these substances in the ducts can cause blockages in exhaust fans and filters, rapidly dirtying the ducts and increasing operational costs.

To address all these issues, standards such as the German VDI 2052 and the British DW/172 have been established for kitchen exhaust systems. In addition to these standards, DEFRA (Department of Environment, Food & Rural Affairs) in the UK emphasizes certain aspects related to these systems.

When the Environmental Protection Act of 1990 was enacted in the United Kingdom to control pollution arising from industrial processes, it empowered various institutions in the country to implement their pollution levels at the enforcement point. The Act came into force as a law that would allow advanced control of pollution from various industrial and other processes across the United Kingdom, granting all public institutions in their respective regions the authority to enforce pollution levels.

In 2004, DEFRA requested a guidance report on the control of odor and noise from industrial kitchens from Netcen, the operational division of AEA Technology Plc. The report was prepared, and in 2005, DEFRA published the guidance.

According to DEFRA guidance, the objectives of odour control are as follows:

1. New facilities at the design stage should be designed in such a way that they do not harm the environment.

2. Existing plants that have been commissioned without odour control should be redesigned in accordance with the best practicable principles so as not to harm the environment.

In the selection of ecology units, the most important design criterion is the type of kitchen. Since the amount of grease, steam, and particles in the exhaust air will vary depending on the type of food being cooked, different models need to be selected for different types of kitchens.

Accordingly, common kitchen types can be categorized into four main classifications based on odor and grease intensity: low, medium, high, and very high intensity kitchen types.

Nisan 24, 2021

Our Certificates

 

We have ISO 9001 International standards organisation quality management system, ISO 14001 Environmental management system, ISO 18001 Occupational Safety and Health certificates.

Nisan 16, 2021

TSE Service Competence Certificate

Service certification is the certification that demonstrates that the services provided to consumers comply with the relevant Turkish Standard or criteria.

In case of conformity determination, the document issued to organizations is the Service Competence Certificate. Our company has obtained the TSE Service Competence Certificate to enhance the quality of service we provide to our valued customers and to increase your satisfaction.

 

Nisan 15, 2021
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