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Exhibition Centres - Indoor Air Quality Treatment Solutions

The exhibition halls can accommodate more than 1000 people at one time .The functions of exhibition are to exhibit works to visitors and to preserve them as long as possible. Air conditioning systems with good indoor air quality are necessary for providing a pleasant air environment for Visitors. The indoor air environment mainly indoor temperature and humidity and ventilation effectiveness in exhibition rooms are usually significant concerns. Higher humidity increases the risks of microbial growth and erosion. In order to provide comfortable indoor environment to visitors, the total fresh air system is preferable for the sake of human's comfort and healthy

 Exhibition Centres - Indoor Air Quality Treatment Solutions

The Role of Ozone Generator in HVAC Systems in Exhibition Centres
HVAC System consumes Upto 60% of electricity in an Exhibition Centre. Major cost borne by the owner & users.
Role of Ozone Generator in HVAC / AHU System in Bank
HVAC System in an Airports account for upto 60% of electricity consumption. Major cost borne by the Users.

Major impurities in Indoor Air Environment are:
Volatile Organic Compound (VOC)
In Indoor Environment Toxic Gases are emitted from wide variety of sources:
• Building Materials,
• Cleaners, Plastics,
• Wood Products,
• Paints, Carpets,
• Polishers,
• Deodorants, etc.

It adversely affect to:
Allergy, Asthma, Eye & Nasal irritation, Affect respiratory tracts, etc.

Carbon-di-oxide - Co2
In an indoor environment human being Exhale Carbon dioxide it cannot be reduced or oxidized.
It is not a toxic or carcinogen but a high level of CO2, causes:
• Headaches, Restlessness,
• Difficulty Breathing, Sweating,
• Tiredness, Increased Heart Rate,
• Elevated Blood Pressure, etc

Odour is a major Irritants & it is cause from various sources:
• Food Odour
• Body Odour
• Mold, Fungi & Microbes
• Cleaning Chemical Odour, etc
This is a residual odor & difficult to dilute from conventional method.

These are collectively known as& "SICK BUILDING SYNDROME"
To address Sick Building Syndrome (SBS) the AHU systems take Outdoor Air to dilute Volatile Organic Compound (VOC) and reduce Carbon dioxide (CO2) within acceptable limits.
Conventionally Fresh Air is used to improve Indoor Air Quality (IAQ)
• Fresh air is not cheap!
• Hot and humid air needs to be cooled down to room temperature. Hidden Cost of Fresh Air taken by Air Handling Unit in an HVAC System:
Load profile of fresh air
» 60% to cool moisture … wasted energy
» 28% to cool nitrogen …..wasted energy
» 12% to cool oxygen …..the only useful component in fresh air.

Energy Consumption- 150 CFM of Fresh Air will require 1ton of cooling load. (Approximately)

Position of ASHRAE on reducing fresh air intake:
ASHRAE approves reduction in fresh air, if chemical contaminants in air are removed.
We refer you to the following sections of ASHRAE62-99:
Procedure for use of cleaned recirculated air: The amount of outdoor air may be reduced by recirculating air from which offending contaminants have been removed or converted to less objectionable forms. Formaldehyde, for example may be oxidized to water and carbon dioxide. The amount of outdoor air depends on the contaminants generated in the space, etc.

ASHRAE Standards
• ASHRAE Ventilation code no. 62-1999.
• Minimum 15 CFM per person fresh air is required.
• Minimum of 30 CFM fresh air is required if smoking is permitted.

How to reduce Fresh Air
• By using controlled injection of ozone.
• Oxidation of Volatile Organic Compound (VOC) is performed by ozone and not by oxygen of the fresh air.
• Ozone is more powerful oxidizing agent than oxygen.
• In the presence of a more powerful oxidant, less powerful oxidant does not have the chance to perform oxidation, until no more of the former is available.
• Oxygen of the fresh air is preserved and not spent in performing the task of oxidizing the Volatile Organic Compound (VOC), which is now transferred to ozone.
• Available oxygen is now used entirely to maintain Carbon-di-oxide.
• Intake of fresh air is reduced drastically. Thus fresh air requirement goes down to 5CFM or less per person.

Ozone is increasingly being used in HVAC systems to improve the indoor air quality & also to achieve the energy efficiency of the HVAC systems. Chemtronics has successfully designed and installed oxygen fed air Ozone Generator to integrate with the present HVAC system. It achieves acceptable Indoor Air Quality (IAQ) while minimizing energy consumption, and fully complying with ASHRAE standards. It also helps in getting LEED rating points on Indoor Air Quality. Use of Ozone Generator in Exhibition Centre Indoor Air Treatment will not only improves the indoor air but also achieve energy efficiency. This unique technology integration gives buy back of CapEx in less than 2 year.

Smoke Odor Control Odor Removal
Health-Conscious employees are less likely to be a smoking guest than in the past years. Offices are faced this problem affecting the non-smokers. Cigarette odors in smoking rooms can be so repulsive, even smokers wouldn't want to stay in it. With the continued awareness of the dangers of passive smoking, specially designated smoking rooms are becoming more and more common.
Due to the almost constant exposure to smoke in these rooms however, it can become a revolting experience entering such rooms, even for those who smoke.
• Ozone generator is very effective against any smoke from natural substances, and can be used not just in smoking rooms, but also in sanitation of smoke damage from fires.
• Ozone treatment can leave the room odour-free as the Ozone gas reacts with the smoke molecules, effectively separating them and allowing them to dissipate and thus making the areas more welcoming to guests.
• Ozone neutralizes any odors and is especially effective for getting rid of the smell of cigarette smoke, even if it has permeated the furniture and curtains. Also eradicated by ozone are the smell of paint or glue fumes, spilt alcohol, pet urine, mildew and damp, body odors and fire damage etc.
• Ozone is especially useful for the day after a party when a room still smells like cigarettes, alcohol or foods even after the guests have gone and the room has been cleaned. An ozone generator left on in a closed room overnight will totally deodorize the room, carpets, furniture and curtains.
• Ozone generators permanently installed in an area such as a smoking room or bar allow constant deodorization and neutralization. This neutralizes a once permanent problem and creates a healthier environment for guests, staff, smokers and non-smokers.
• Ozone generator can be used effectively used as smoke odor control, odor removal.

Pantry / Kitchen Odor Control Odor Removal
Preparation Coffee, Tea & cooking activities in the Pantry make the area of the exhibition centre most susceptible to generating and retaining odors. Food flavors from exotic meals, molds from expired dishes, and the musty stench from the garbage disposal are just a few of the smells that can emanate from the pantry. It can also get into the ducts of a forced air HVAC system, so it is very important to have a plan & customized solution.

Ozone Generators are absolutely the best way to get rid of these Pantry odors or Kitchen odor. They are simple to use, require very little maintenance and last for years. Ozone generators are used as pantry odor control, odor removal systems.

Odor can be quickly & efficiently eliminated. Ozone being the most powerful disinfectant for removing bad smell from mold, tobacco smoke, sweat, garbage, food, etc.

Restroom Odor Control, Odour Removal
Unpleasant restroom Odor has a major impact on the image of your exhibition center and the health of your employees. It can also get into the ducts of a forced air HVAC system, so it is very important to have a plan & customized solution.

• Ozone is effective in preventing the growth of bacteria and mildew in bathrooms and neutralizes unpleasant bathroom odors.
• Ozone generators fitted into public restrooms maintain low levels of bacteria and deodorize the area, creating the most sanitary conditions possible for clients and guests.
• Ozone generators effectively used as restroom odor control, odor removal system.

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