HBOS Re-circulation Systems offer another option for room protection instead of relying exclusively on traditional exterior based vapor adsorbers that pump purified air into the target space. There are significant advantages in terms of cost, plug & play type installations, simple media management, and they eliminate the need for additional HVAC capacities to rooms, as they add no significant heat load to the existing equipment housed in the space.
Advantages include:
a) Initial cost of re-circulation units is less than traditional vapor adsorbers because the fans are smaller, the footprint is more concise, and there is less overall steel and bulk in these systems;
b) Installation is quick and easy. Just place the unit in the room, insert media, plug into a 110 volt receptacle, and turn the unit on. No need for dedicated pads, electrical connections, duct work, plumbing, or carpentry to get this unit into service;
c) The particulate and extruded media is easy to change-out. Slide out the dirty particulate filters and spent specialty media, and slide the new pieces into place. You don't even have to battle the elements as these units are for inside operation only. It is that simple;
d) The single most important cost element associated with the choice to use re-circulation systems over traditional vapor adsorbers is related to the need for additional heating and cooling when employing the traditional protection methods. Traditional units create a huge heat load issue for rooms, particularly in the southern US states in the summer. Installing a series 2000 CFM traditional vapor adsorber in Florida would require an additional HVAC cooling system of 27 tons! The cost of that HVAC system alone far eclipses the cost of the vapor adsorber. Ignoring the additional cooling requirements creates a serious problem with room protection as a given amount of corrosive gas is far more damaging as temperature and humidity increase. Those rooms are also unbearable if operators need to be in that space at the same time, and often the operators turn off vapor adsorbers in those situations, leading to absolutely no protection for room contents.
e) Touch screen controls allow for easy manipulation of the operational components of the unit. Direct control of fan speed can be used to maximize media life if your contaminant concentrations are low, as an example;
HBOS Re-circulation Systems are sized with similar CFM to traditional vapor adsorbers, but use smaller fans as they house less media. In a re-circulation cleaning mode, the room air is continually being placed back into contact with the media many times to constantly scrub out any contaminants in the space, so you can get more effective cleaning of contaminated air with less contained media. Any contaminants that enter the space are continuously scrubbed. With the traditional systems that supply purified air to the room in a single pass cleaning mode, any corrosive material already present in the space is not removed.
Traditional vapor adsorbers are designed to attempt capture of all contaminants in a single shot before entering the room. Those systems have large media reserves and larger fans. Once contaminated gas is in the room, traditional systems are no longer able to remove it as there is no more contact with the media after entering the room. As previously discussed, you have to also budget significant investments for HVAC upgrades when using these traditional systems, especially in hot humid climates.
Re-circulating vapor adsorbers have been successfully deployed for corrosion protection extensively all over the world for decades. It is a lower cost alternative to room protection that simply requires that media be changed routinely on schedule to keep the contents of the space in a more viable environment for longevity.
Advantages include:
a) Initial cost of re-circulation units is less than traditional vapor adsorbers because the fans are smaller, the footprint is more concise, and there is less overall steel and bulk in these systems;
b) Installation is quick and easy. Just place the unit in the room, insert media, plug into a 110 volt receptacle, and turn the unit on. No need for dedicated pads, electrical connections, duct work, plumbing, or carpentry to get this unit into service;
c) The particulate and extruded media is easy to change-out. Slide out the dirty particulate filters and spent specialty media, and slide the new pieces into place. You don't even have to battle the elements as these units are for inside operation only. It is that simple;
d) The single most important cost element associated with the choice to use re-circulation systems over traditional vapor adsorbers is related to the need for additional heating and cooling when employing the traditional protection methods. Traditional units create a huge heat load issue for rooms, particularly in the southern US states in the summer. Installing a series 2000 CFM traditional vapor adsorber in Florida would require an additional HVAC cooling system of 27 tons! The cost of that HVAC system alone far eclipses the cost of the vapor adsorber. Ignoring the additional cooling requirements creates a serious problem with room protection as a given amount of corrosive gas is far more damaging as temperature and humidity increase. Those rooms are also unbearable if operators need to be in that space at the same time, and often the operators turn off vapor adsorbers in those situations, leading to absolutely no protection for room contents.
e) Touch screen controls allow for easy manipulation of the operational components of the unit. Direct control of fan speed can be used to maximize media life if your contaminant concentrations are low, as an example;
HBOS Re-circulation Systems are sized with similar CFM to traditional vapor adsorbers, but use smaller fans as they house less media. In a re-circulation cleaning mode, the room air is continually being placed back into contact with the media many times to constantly scrub out any contaminants in the space, so you can get more effective cleaning of contaminated air with less contained media. Any contaminants that enter the space are continuously scrubbed. With the traditional systems that supply purified air to the room in a single pass cleaning mode, any corrosive material already present in the space is not removed.
Traditional vapor adsorbers are designed to attempt capture of all contaminants in a single shot before entering the room. Those systems have large media reserves and larger fans. Once contaminated gas is in the room, traditional systems are no longer able to remove it as there is no more contact with the media after entering the room. As previously discussed, you have to also budget significant investments for HVAC upgrades when using these traditional systems, especially in hot humid climates.
Re-circulating vapor adsorbers have been successfully deployed for corrosion protection extensively all over the world for decades. It is a lower cost alternative to room protection that simply requires that media be changed routinely on schedule to keep the contents of the space in a more viable environment for longevity.