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Energy Recovery Products
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TE-3 and TS Desiccant Wheels

SEMCO EXCLU-SIEVE® enthalpy exchanger recovers both sensible (temperature) and latent (moisture) energy, and does so far more effectively than other competitive offerings.

This performance edge is a result of EXCLU-SIEVE’s unique transfer core. This "honeycomb like" media utilizes an aluminum substrate coated with a fast-acting, 3Å molecular sieve desiccant. As the transfer core slowly rotates between the outdoor and return air stream, the higher temperature air stream gives up its sensible energy to the aluminum. This energy is then transferred to the cooler air stream during the second half of the revolution.

Just as the temperature is captured and released, so is the moisture (latent energy). This is accomplished by the desiccant coating of the wheel. The desiccant has a very strong affinity for water and an enormous internal surface area to bind the water on its surface. Since the opposing air streams have different temperatures and moisture contents, their vapor pressures on their surfaces differ. This vapor pressure differential is the driving force necessary for the transfer of water vapor.

The ability to recover latent energy is one of the major benefits of SEMCO’s EXCLU-SIEVE technology. It will do this both in the cooling and the heating season. During the cooling season the outdoor air is dehumidified and pre-cooled. This significantly reduces the cooling requirements of the conditioned space. In the heating season, the process reverses and the outdoor air is humidified and preheated. This reduces the costly humidification of ventilation air as well as the heating requirements of the indoor space.

Latent recovery doubles the energy savings potential recognized with the use of the sensible-only technology. It allows for cuts in chiller and boiler capacities. System designs incorporating total energy recovery are first cost equivalent to conventional designs when achieving the same ventilation requirements and supply air conditions. In addition, they provide operating cost savings year-in and year-out.

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1100 Peachtree Building (38 kB) pdf
Description: After 10 years, energy recovery still delivers for Atlanta building.

Cleveland Metroparks Zoo (106 kB) pdf
Description: Cleveland Metroparks Zoo's RainForest is a showcase for both animals and HVAC.

Coral Reef Yacht Club (66 kB) pdf
Description: Ventilation unit recovers energy while resolving smoking issues.

Georgia Institute of Technology (127 kB) pdf
Description: A desiccant-based system in place at a Georgia Institute of Technology dormitory is maximizing indoor air quality while minimizing energy consumption.

High-Performance Schools  (2248 kB) pdf
Description: High Marks for Energy Efficiency, Humidity Control, Indoor Air Quality & First Cost

Johns Hopkins School of Medicine (218 kB) pdf
Description: A desiccant system has improved air quality; halved cooling requirements, and reduced heating and humidification requirements by more than two-thirds at the Johns Hopkins School of Medicine.

Milwaukee Area Technical College (38 kB) pdf
Description: Milwaukee firing range uses desiccants to improve IAQ.

Northville High School (36 kB) pdf
Description: Wheels turning for energy savings at high school.

Red Wing High School (117 kB) pdf
Description: Equipment earns high grades.

Redi-Floors Inc (57 kB) pdf
Description: An office-warehouse owner virtually eliminated tobacco smoke and controlled other contaminants by retrofitting his building's ventilation system. Here's what he did - and why.

Report Card on Humidity Control (2271 kB) pdf
Description: Failing Grade for Many Schools.

SEMCO Pioneers Indoor Environmentalism (116 kB) pdf

The Family Arena (51 kB) pdf
Description: Missouri contractor uses heat wheels to cool arena.

The Heat Wheel: The New Lab Experiment (409 kB) pdf
Description: Energy efficiency, lower costs, and assurances of safety were key factors in Indiana University’s decision to use heat wheel technology in its new $20.8-million Professional and Medical Education Building in Gary, IN.

University of Miami Center for Tropical Parasitic Diseases (115 kB) pdf
Description: Air Exchanger Eliminates Cross-Contamination in Animal Lab.

Wizard's Sports Cafe (55 kB) pdf
Description: Sports Bar/Restaurant Clears the Air.
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