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Energy Systems Laboratory
An applied research laboratory focused on
energy efficiency
• An engineering “Teaching Hospital”
• Develops innovative technologies
• Commercializes affordable results for industry
• Funded by contracts for research and
engineering services
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Whole Campus Demand (kW)
Hour
Date
Hourly Demand Profile for July 1997
(Prior to CCSM)
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1600
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2800
Architectural Engineering
• New undergraduate and graduate degree
program coming at A&M
• Will offer specialties in
HVAC/Mechanical, Electrical/Lighting,
and Structures
• Program Director hired: Dr. Morad Atif
Molecular Membrane Air Conditioner (MMAC)
• Zeolite membrane permits water vapor to pass
through - blocks most air passage
- Acts as a “sieve” for water vapor to dehumidify air
without the energy penalty of condensation
H2O
O2
N2
Adsorption
Diffusion
Desorption
Zeolite Pore (~0.35 nm)
Membrane
<2µm thickMetal support
~50µm thick
MMAC Operation
• A very green process
• No refrigerants
• High Efficiency (“SEER”s from 17 to 40+ in future)
• Cost effective (targeted to eventually cost less than
conventional)
Testing Verifies It Works As Expected6
Cool
And Dry
AirSensible
Cooling
w/ Fan
Cooling
Tower
Cooling
Water
Pump
Dehumidification
Unit
Vacuum
Pump
Water
Vapor
Humid
Air
Low
Humidity
Air
Liquid
Reservoir
Liquid
Pump
Condenser
Liqui
d
Non-Condensable
Gas
Compressor
Status: Bench Prototype Built
Future Development
• Supported by - DOE Advanced Research Projects Agency –
Energy ARPA-E
- Department of Defense
- U.S. Navy
• Initial Customers Identified- U.S. Navy
- Data Center Dehumidification
MMAC will
• Fundamentally change in the way we
dehumidify and cool air
• Completely eliminate use of any
refrigerants with environmental impacts
• Be more efficient than current technology
• Generate highly pure water
• Ultimately cost less than current
technology
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