Bry-Air - Dry Rooms
From Dry Rooms
Bry-Air, the leader in dehumidification...worldwide and having over 55 years of experience in providing moisture control solutions for the most complex and critical industrial applications, helps support you with all your Dry Room requirements under a single roof.
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Products Details
Bry-Air has the capability to build state-of-the-art Dry Rooms and provide complete solution for achieving low dewpoint control for your hygroscopic and moisture sensitive material processing.
Bry-Air Dry Rooms come equipped with patented Environment Control Dehumidification System including refrigeration system. Bry-Air has proven success in meeting the stringent requirement of dew point lower than (-) 75℃ and has very recently provided dry room solution to one of the most advanced and reputed Indian Defence Laboratory of the Defence Research and Development Organization (DRDO). Bry-Air also takes pride in being the fastest growing adsorption technology group in the world and having over 123 patents applications filed in 13 new technologies of which 46 have been granted/ allowed already.
Dry Rooms are being used by pharmaceutical companies, automotives and selective other industries which have very low dew point requirements for their hygroscopic material processing and storage. Lithium and alternative battery manufacturers are today the most vulnerable and hence, are driving the high requirement for Dry Rooms. Every Dry Room is unique and there is a great amount of detailing and specialization requirement. Only few players who have the desired experience and subject knowledge are able to get the design and configurations of such units correct in the first instance. Safety is paramount in Dry Rooms as a minor glitch or error may lead to major hazardous risks.
Bry-Air Airgineers are well trained and equipped to deliver any size of Dry Rooms, be it for use in research laboratories or large scale production areas. Our Airgineers develop turnkey dry room solutions ensuring highest standards of safety and design competencies. Working closely with the clients directly, they are able to design, install and retrofit some of the most advanced dry rooms with fully automated systems.
Key constituents and requirements for Dry Room built:
Constituents:
Panels & Room
- Insulated and fire retardant modular panels
- Air tight self supporting rooms with HEPA filters inside the room
- All metal construction
- Baked white galvanized metal interior (stainless steel option available) and exterior
Floor
- Anti static floor
Door
- Entrance door with air lock
- Emergency door
Sensor
- Controller, dew point meter with dew point sensor
Requirements:
- Vapor tight construction ensuring zero leakages
- Rib structure fabricated from hollow tubular section welded together for providing chamber strength and rigidity with special emphasis for floor loading. However of late, double skin modular panel construction with vapour tight construction have also gained acceptance with advance of new manufacturing processes
- Proper insulation
- Inner skin generally to be GI constructed
- Proper lighting arrangement and power points at necessary locations
- Ante room to be provided to reduce moisture load due to door opening
- Entry Door for main entrance, ante/airlock room and additional emergency door is required
Some outstanding Features and Advantages resulting from Bry-Air GDP Technology:
- Highest low dew point supply air CMH/kW of regeneration: High Performance
- Single Rotor Machine: for as low as (-) 90°C
- High Performance Rotor: pH neutral, water washable
- Own Rotor Manufacturing
- Performance Demonstration (Type Test): each design can be pre validated in our dynamic test lab
- Manufacturing Capability and Quality Certifications
- Unit Construction: robust, durable, >20 years life
- Adjustability of Fresh Air Fraction
- No Post Cooling Coil Required: feature of patented technology
- Patented Green DryPurge (GDP) Technology
If you are considering setting up a Dry Room, Bry-Air may help you get started.
Please get across to us at bryairmarketing@pahwa.com and we will be happy to help you get to the driest room on earth.
Dry Rooms for Lithium Batteries
Don’t Let Moisture Reduce The Performance of Lithium Batteries
There are four critical legs on which the lithium battery production space stands on:
- Technology
- Raw Material
- Machinery
- Dry Rooms
Bry-Air has the product and global standard technology for dry rooms.
The Green DryPurge (GDP) dehumidifier technology which is the most energy efficient dehumidifier for
Bry-Air has the capability to build state-of-the-art Dry Rooms, and provide complete solution for achieving low dew point control for your hygroscopic and moisture sensitive material processing.
Bry-Air is the only total solution provider for dry rooms with environment control equipment incorporating patented technology critical for Lithium battery manufacturing.
In manufacturing of Lithium batteries there is a requirement of very low humidity conditions – typically below 1% RH or lower (- 35°C or -90°C dew point).
Also pure Lithium metal is extremely sensitive to even tiny amounts of moisture in the air in the lithium batteries processing rooms. Moisture sealed inside the battery can react after the battery is completed. When moisture in the air comes in contact with lithium metal, an exothermic chemical reaction occurs that forms Lithium Hydroxide and Hydrogen Gas.
2Li + 2H2O = 2LiOH + H2
So, in order to overcome above problems dry rooms are used.
Areas of Critical Moisture Control in Battery Production Facilities
- Battery Assembly Area
- Cover Attachment to Power Collector
- Glass to Metal Sealing
- Electrolyte filing in Cell
- Cathode Production
- Testing
- Electrodes Insertion
Ideal Dry Room Conditions for Li-ion Battery Manufacturing
- Moisture level in Lithium-ion battery processing areas should have less than (-) 35°C dew-point and/or moisture content of 0.14 grams per kg of dry air
- Room temperature should be maintained at recommended levels, around 25°C, with tolerance of +/(-) 2°C along with dewpoints in the range of (-) 35°C (0.14 g/kg)
- The air change rate in the production room should be more than 50 air changes per hour with maintenance of minimum fresh air introduction for positive room pressure and ventilation for workers
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