Technology

Introduction

DRI has always been in the forefront of Air Treatment technologies. Our group is the fastest growing Adsorption Technology group in the world today.

We have several patents for our key technologies filed and accepted globally. (more details are available on request)

The R&D at DRI is focused to continuously provide the customer with energy smart green products through:

R&D on new technologies and materials.
Design standardization through simulation, optimization and globalization.
Innovative product and process development.
Testing and certification of products.

Some of the key materials, technologies, intellectual property (IP) and core products developed using hundreds of man-years of research, development, experiments, extensive internal & external testing & validation are:

Air to Air rotary heat exchangers
High temperature recovery exchangers
Desiccant dehumidification media and rotors
Ultra-low dew point dehumidification rotors
Passive desiccant rotors
Desiccant cooling systems
Resin drying rotors
Dew point cooling
Active and Passive Chilled Beams
Dedicated Outdoor Air systems
Central Air purification systems
Zeolites and special desiccants
Gas phase filtration media
Fire retardant Evaporative cooling media
Indirect evaporative cooling exchangers
Metal organic frameworks
Heat Pipes
Volatile organic compound VOC capture and abatement
Special humidity transfer Membrane based exchange cores
Thermal bridging and leak proof air unit casing construction
Low temperature & condenser heat based regeneration dehumidification

Our Team

A dedicated team of scientists, research chemists and engineers are working on breakthrough work with the end objective of market introduction of truly innovation tech. The company has several patents filed and granted globally for the technologies, products and processes developed.

DRI has continuously invested in product and technology specific testing labs. DRI'sR&D facilities are recognized by the Department of Science and Technology and are the best in the environmental control industry, worldwide, in the corporate sector.

Research & Development Labs

Our state-of-the-art R & D Labs are very versatile and regularly used for the following (as example):

To simulate and optimize dynamic enthalpy / energy recovery variables for new product design and development e.g. Rotors & Sensible latent Recovery.
To standardize/establish ideal performance curve for fluted media desiccant products i.e. ERV's, HRW etc.
To standardize /establish ideal performance curve of fluted media (honeycomb) products.
To evaluate and certify the performance of desiccant (honeycomb) wheel/rotor.

World-class test facilities for performance evaluation

Enthalpy Wheels
At DRI, we use a unique and a first of its kind Testing Facility for the performance evaluation of Energy Wheels in association with Intertek Testing Services, Cortland (Intertek Associates with AHRI for the AHRI 1060 Program). It is designed for performance evaluation of Energy Wheels:

Simulating and optimizing dynamic enthalpy/energy recovery variables for new product design and development e.g. Rotors, for sensible and latent energy recovery.
Standardizing/establishing the ideal performance curve for fluted media (honeycomb) products
Evaluating and certifying the performance of wheels/rotors
Measuring the performance of Heat Recovery Wheels based systems.
Assisting in prototype development and benchmarking.

Eco

EcoDry Desiccant Dehumidification Rotors and Cassettes

One of the most advanced labs in the world for desiccant rotors. More details can be provided on request.
EcoDry Lab tests rotors capable of delivering desired dew points for applications in Pharmaceuticals, Food, Commercial Fresh Air Systems etc. and extremely low dew points for specialized applications like lithium Battery Rooms & Plastic Dryers.

ecodry

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Active Chilled Beams

We have developed a unique and a first of its kind Testing Facility for the performance evaluation of Active Chilled Beams in association with WSP Laboratory Germany. The laboratory is designed to meet the testing criteria of various standards. In addition to the capacity testing, the laboratory is designed to have flexibility and adaptability for application testing using multiple beams at a given time.

Simulating and optimizing variables for new product design and development e.g. chilled beam capacity, nozzles, configuration etc.
Standardizing / establishing the ideal performance curve for the chilled beams at various operating conditions
Evaluating and certifying the performance of active chilled beams
Measuring the performance /capacity of chilled beam.
Assisting in prototype development and bench marking.

Eco

Gas Phase Filtration Lab

For testing performance of Granular and Honeycomb Media. More details can be provided on request.

gas

We have developed a special Testing Facility for the performance evaluation of evaporative cooling pads. The laboratory is designed to meet the testing and measuring criteria for Temperature, airflow. pressure and moist air properties as per ASHRAE Standards 41.1, 41.2, 41.3 and 41.6 respectively.

Simulating and optimizing variables for new product design and development e.g. evaporative cooling configurations.
Simulating and optimizing variables for new product design and development e.g. evaporative cooling configurations.
Standardizing / establishing the ideal performance curve for the evaporative cooling pads.
Evaluating and certifying the performance of evaporative cooling pads
Assisting in special customised product offering.

Indirect Evaporative Cooling Heat Exchangers/Modules:

Simulating and optimizing variables for new product design and development e.g. indirect evaporative cooling heat exchanger modules.
Evaluating and certifying the performance of Indirect evaporative cooling heat exchangers/modules
Assisting in special customised product offering.

Volatile organic compounds VOC Lab

One of the most advanced labs in the world for VOC capture and abatement. More details can be provided on request.

ECO VOC

'DRI' Honeycombs = Nature

The DRI honeycomb / fluted media draw inspiration from the nature's own work of art - the honeycomb. The honeycomb structure combines the advantages of maximum surface area, least pressure drop, light weight and amazing structural strength. It can be made highly porous due to the nature of construction of the substrate used.

The fluted media, due its porosity, can act host to any desiccant, metal silicates and catalysts in its walls, depending upon its usage, like air drying, VOC removal, etc. Even for applications like NOx removal, excellent honeycombing is possible, to provide a high velocity air passage with a low substrate mass, high catalyst loading, and low heat carryover.

This innovation is a major advantage and sets it apart from the conventional honeycomb carriers. The DRI fluted media can easily be used up to very high temperatures and can take many desiccants and catalysts according to the end usage required.

Endless choices and challenges

Various permutation and combinations of substrates, chemicals, synthesizing processes and design features are possible, depending upon the application.

Typical substrates

Ceramic fibre paper
Metal silicate loaded paper
Kraft paper
Glass fibre paper
Active carbon paper
Plastic sheet
Aluminium foil
Gold foil
Tissue paper
Stainless steel foil

Typical desiccants / catalysts and chemicals

Metal silicate (several options)
Hydrophobic zeolites
Silica Gel
Catalysts (variety)
Zeolites / molecular sieve (s)
Noble metals

Bringing them together ... Some methods

We have not only mastered the art of impersonating and recreating nature's wonder - honeycombs, but also the science of combining the substrates with chemicals, using various processes, that include:

Coating the fluting material
Impregnating the substrate
Pre-loading (e.g. during manufacture of speciality paper)
Synthesising 'in situ'

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