Energy savings for a solar heated and cooled building through adaptive optimal control

Conference · Wed Nov 01 00:00:00 EST 1978

OSTI ID:6371280

Farris, D R; Melsa, J L

A study of the applicability of adaptive and optimal control techniques to the control of heating, ventilating, and air conditioning (HVAC) systems of solar heated and cooled buildings is described. The suitability of optimal and adaptive concepts is discussed and the selected approach is explained. An integral quadratic cost functional to define optimal performance and an identification process to produce a linearized building model are combined to yield an adaptive linear regulator solution. The building model is described and heating system simulations of three versions of the adaptive optimal controller are reported along with a simulation of a conventional controller for comparison. A nonlinear, open-loop, optimal control simulation is also reported and used to indicate an upper bound on achievable performance. Cooling system simulation results are also reported for an adaptive optimal controller and a conventional controller. Substantial savings in auxiliary energy requirements are demonstrated by the adaptive optimal controllers.

• Research Organization: Los Alamos Scientific Lab., NM (USA); Notre Dame Univ., IN (USA). Dept. of Electrical Engineering
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6371280
• Report Number(s): LA-UR-78-2986; CONF-790105-1
• Resource Relation: Conference: 17. IEEE conference on decision and control, San Diego, CA, USA, 10 Jan 1979
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SOLAR COOLING SYSTEMS
CONTROL SYSTEMS
SOLAR HEATING SYSTEMS
ABSORPTION REFRIGERATION CYCLE
BUILDINGS
DIAGRAMS
FLOW RATE
HEAT EXCHANGERS
HEAT STORAGE
MASS TRANSFER
OPTIMIZATION
PERFORMANCE
SIMULATION
VENTILATION
ENERGY STORAGE
HEATING SYSTEMS
STORAGE
140901* - Solar Thermal Utilization- Space Heating & Cooling