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The Measured Energy Impact of Infiltration Under Dynamic Conditions
(Energy Systems Laboratory (http://esl.eslwin.tamu.edu), 1992-05)
Energy consumption due to air infiltration is customarily assumed to equal the mass flow rate times the specific enthalpy difference between the inside and outside air. Anderlind showed theoretically that this represents ...
Impacts of Optimized Cold & Hot Deck Reset Schedules on Dual Duct VAV Systems - Theory and Model Simulation
(Energy Systems Laboratory (http://esl.tamu.edu)Texas A&M University (http://www.tamu.edu), 1998)
Optimal hot and cold deck reset schedules
can decrease simultaneous heating and cooling
in VAV AHUs comparing with constant cold
deck temperature operation. In this paper,
optimization models are developed. The energy
impacts ...
Use of EMCS Recorded Data to Identify Potential Savings Due to Improved HVAC Operations & Maintenance (O&M)
(Energy Systems Laboratory (http://esl.tamu.edu)Texas A&M University (http://www.tamu.edu), 1996)
In most chiller and boiler central plants, the
energy management and control systems (EMCS)
monitor and record key operation parameters and
energy production continuously. A method was
developed to identify potential O&M ...
Reducing Pump Power Consumption by 40% (1000 KW) Through Improved Pump Management in a Central Plant
(Energy Systems Laboratory (http://esl.tamu.edu)Texas A&M University (http://www.tamu.edu), 1998)
Chilled water system data collection and field
measurements performed at the Central Utility Plant
of Texas A&M University revealed that 30 - 50 % of
the primary pump head is consumed by manual and
automatic valves being ...
Demand-based Optimal Control to Save Energy: A Case-Study in a Medical Center
(Energy Systems Laboratory, 2008-12)
Continuous Commissioning®1 (CC®) strategies include reducing simultaneous heating and cooling, scheduling the facility’s occupancy needs, utilizing free cooling, and minimizing excessive supply air and outside air. Most ...
Optimal Control in Three-deck Multi-Zone Air-Handling Units: A Case-Study
(Energy Systems Laboratory, 2008-12)
A multi-zone air-handling unit was popular several decades ago due to the convenience of small sized modular units, which were inexpensive to install and easily maintained in a mechanical room. The cost and convenience ...
Simulation and Optimization on Power Plant Operation Using Sega's EOP Program
(Energy Systems Laboratory (http://esl.tamu.edu)Texas A&M University (http://www.tamu.edu), 2000)
The operation of a cogeneration power plant is
complicated. The Energy Optimization Program
(EOP, software made by SEGA, Inc.) was designed
to simulate and optimize the operation of TAMU
power plant. All major plant ...
Commissioning of A Large Office Building in Texas - A Case Study
(Energy Systems Laboratory (http://esl.tamu.edu)Texas A&M University (http://www.tamu.edu), 2000)
This case study involves commissioning of a
large office building in the hot and humid climate of
south Texas. The commissioning involved the
installation of a VFD (Variable Frequency Drive) on
a chilled water pump, improved ...
Impacts of Static Pressure Set Level on the HVAC Energy Consumption and Indoor Conditions
(Energy Systems Laboratory (http://esl.tamu.edu)Texas A&M University (http://www.tamu.edu), 1996)
Air static pressure must be maintained at a
certain level leaving the air-handing unit (AHU) to
force a suitable amount of air through the terminal
boxes. However, an excessive static pressure level is
often used due to ( ...
An Advanced Economizer Controller for Dual Duct Air Handling Systems - with a Case Application
(Energy Systems Laboratory (http://esl.tamu.edu)Texas A&M University (http://www.tamu.edu), 1996)
Heating penalty is expected when economizers
are applied to dual-duct air handling systems.
The heating penalty can even be higher than the
cooling savings when the hot air flow is higher
than the cold air flow. To avoid ...