A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Indoor climate control in multi-unit grid-interactive efficient buildings
December 2022 ; School of Engineering ; In this work, we develop a number of energy management policies for building heating,ventilation and cooling (HVAC) systems for satisfying various objectives. Control policies whose objective is to improve building operations are primarily aimed at economizing indoor climate control operations. On the other hand, occupant-centric control strategies prioritize the comfort of individual occupants. In this dissertation, we evaluate the performance of some of these policies in both simulated and physical setups. The thermal inertia of buildings, along with the flexibility associated with thermostatically controlled loads (TCLs) allows HVAC systems to be used for grid demand response (DR). The initial few chapters of this report develop control strategies aimed at minimizing the operational costs of a building’s HVAC system. We first consider a hydronic HVAC system that serves multiple units in a residential building to meet their space heating requirements. We determine the optimal power flow to each unit that minimizes the energy costs (EC) incurred by the building while keeping in consideration the occupants’ thermal comfort. The building is assumed to participate in a DR program which allows the building temperatures to deviate from the set-points up to a maximum limit. Despite the complex, non-linear structure of the problem, we show how the optimal solutions can be obtained efficiently using quadratic programming. Since HVAC systems can run on either electricity or natural gas, we study the efficacy of the DR regime for both hourly electricity prices and flat gas prices over the course of 24 hours. We also study the optimal thermal power and the evolution of unit temperatures for various energy pricing schemes. Subsequently, we expand the scope of our work to include TCLs in large commercial buildings. The load profiles of most commercial and industrial consumers are characterized by brief periods of very high power consumption followed by intervals of lower demand. To ...
Indoor climate control in multi-unit grid-interactive efficient buildings
December 2022 ; School of Engineering ; In this work, we develop a number of energy management policies for building heating,ventilation and cooling (HVAC) systems for satisfying various objectives. Control policies whose objective is to improve building operations are primarily aimed at economizing indoor climate control operations. On the other hand, occupant-centric control strategies prioritize the comfort of individual occupants. In this dissertation, we evaluate the performance of some of these policies in both simulated and physical setups. The thermal inertia of buildings, along with the flexibility associated with thermostatically controlled loads (TCLs) allows HVAC systems to be used for grid demand response (DR). The initial few chapters of this report develop control strategies aimed at minimizing the operational costs of a building’s HVAC system. We first consider a hydronic HVAC system that serves multiple units in a residential building to meet their space heating requirements. We determine the optimal power flow to each unit that minimizes the energy costs (EC) incurred by the building while keeping in consideration the occupants’ thermal comfort. The building is assumed to participate in a DR program which allows the building temperatures to deviate from the set-points up to a maximum limit. Despite the complex, non-linear structure of the problem, we show how the optimal solutions can be obtained efficiently using quadratic programming. Since HVAC systems can run on either electricity or natural gas, we study the efficacy of the DR regime for both hourly electricity prices and flat gas prices over the course of 24 hours. We also study the optimal thermal power and the evolution of unit temperatures for various energy pricing schemes. Subsequently, we expand the scope of our work to include TCLs in large commercial buildings. The load profiles of most commercial and industrial consumers are characterized by brief periods of very high power consumption followed by intervals of lower demand. To ...
Indoor climate control in multi-unit grid-interactive efficient buildings
Naqvi, Syed Ahsan Raza (author) / Kar, Koushik / Mishra, Sandipan / Vanfretti, Luigi / Chandan, Vikas
2022-12-01
Theses
Electronic Resource
English , Unknown
Optimization in Grid-Interactive Buildings
| Springer Verlag | 2022
Passive indoor-climate regulation for buildings in hot climate
| TIBKAT | 1985
The sick buildings and other buildings with indoor climate problems
| Elsevier | 1989