Model-based predictive control for optimal MicroCSP operation integrated with building HVAC systems

Toub, Mohamed; Reddy, Chethan R.; Razmara, Meysam; Shahbakhti, Mahdi; Robinett, Rush D.; Aniba, Ghassane

doi:10.1016/j.enconman.2019.111924

Cited by 47 publications

(36 citation statements)

References 34 publications

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“…MicroCSP systems can provide both electrical power and heating source that can be utilized in building HVAC systems. Our previous work [20] shows that, by integrating MicroCSP into the HVAC system, buildings can save 8% more energy than what they could have saved by using PV.…”

Section: Concentrated Solar Power (Csp)-assisted Hvac Systemsmentioning

confidence: 99%

“…Furthermore, it emphasizes the importance of optimal control of the MicroCSP and building HVAC system. Indeed, our previous study [20] concluded that designing optimal control frameworks that account for the dynamics of the MicroCSP and the building HVAC system can significantly reduce the energy consumption up to 70% compared to a conventional rule-based control scheme.…”

Section: Concentrated Solar Power (Csp)-assisted Hvac Systemsmentioning

confidence: 99%

“…However, the reported efficiencies of ORC engines are very low and do not exceed 15% [79]. However, buildings can yet benefit from the cogenerated low-grade heat of the ORC engine to reduce their energy consumption and operational cost of the HVAC systems [20].…”

Section: Thermal Power Enginesmentioning

confidence: 99%

“…Solar energy can reduce the transmission energy losses and avoid fossil fuel-fired electricity generation, particularly in remote areas in Africa [8] which has a very low electricity coverage rate while possessing a large potential of solar irradiation [9]. This paper builds upon our prior works [10][11][12][13][14][15][16][17][18][19][20][21][22] in the area of modeling and control of solar-assisted HVAC systems in buildings, particularly the integration of micro-scale concentrated solar power (MicroCSP) into building HVAC systems. The main objective of this review paper is to give an overview of the MicroCSP technology and how it can be optimally controlled to get the full benefit from its integration into building HVAC systems.…”

Section: Introductionmentioning

confidence: 99%

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Integration and Optimal Control of MicroCSP with Building HVAC Systems: Review and Future Directions

et al. 2021

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Heating, ventilation, and air-conditioning (HVAC) systems are omnipresent in modern buildings and are responsible for a considerable share of consumed energy and the electricity bill in buildings. On the other hand, solar energy is abundant and could be used to support the building HVAC system through cogeneration of electricity and heat. Micro-scale concentrated solar power (MicroCSP) is a propitious solution for such applications that can be integrated into the building HVAC system to optimally provide both electricity and heat, on-demand via application of optimal control techniques. The use of thermal energy storage (TES) in MicroCSP adds dispatching capabilities to the MicroCSP energy production that will assist in optimal energy management in buildings. This work presents a review of the existing contributions on the combination of MicroCSP and HVAC systems in buildings and how it compares to other thermal-assisted HVAC applications. Different topologies and architectures for the integration of MicroCSP and building HVAC systems are proposed, and the components of standard MicroCSP systems with their control-oriented models are explained. Furthermore, this paper details the different control strategies to optimally manage the energy flow, both electrical and thermal, from the solar field to the building HVAC system to minimize energy consumption and/or operational cost.

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Section: Concentrated Solar Power (Csp)-assisted Hvac Systemsmentioning

confidence: 99%

Section: Concentrated Solar Power (Csp)-assisted Hvac Systemsmentioning

confidence: 99%

Section: Thermal Power Enginesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Integration and Optimal Control of MicroCSP with Building HVAC Systems: Review and Future Directions

et al. 2021

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“…Building is the base for human production and living. About 20-40% of the world's total energy consumption is related to the building sector [1][2][3][4][5], wherein, 33-55% of the building energy supply is consumed by HVAC to maintain a comfortable indoor environment [6][7][8][9][10]. Therefore, the reduction of HVAC energy consumption is always a main focus for building energy conservation.…”

Section: Introductionmentioning

confidence: 99%

Classification, experimental assessment, modeling methods and evaluation metrics of Trombe walls

Wang

et al. 2020

Renewable and Sustainable Energy Reviews

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Solar energy building applications are attracting increasing attention from researchers, engineers, businessmen and officials due to their significant benefits in sustainable development, such as energy saving, cost reduction and environmental protection. Trombe wall, as a classical passive solar heating technique, has been studied for many years. A variety of concepts, methodologies and experiences have been developed during relevant research. Especially in recent years, numerous studies on Trombe wall have been published, which implies a rising attention to this technique. This review focuses on the classification, experimental assessment, modeling methods, and evaluation metrics for Trombe wall. In detail, nine types of Trombe walls are introduced according to their materials, structures and functions. Four experimental methods and two modeling methods of Trombe wall are discussed based on their functions, advantages, disadvantages, and applicability. Three aspects of evaluation metrics for Trombe wall are summarized in terms of technique, economy and environment. Moreover, the current and future research of Trombe wall are discussed at the end. The authors consider this article would be useful for their peers and can facilitate the technical development of Trombe wall.

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Building‐to‐grid optimal control of integrated MicroCSP and building HVAC system for optimal demand response services

Toub

Robinett

Shahbakhti

2022

Optim Control Appl Methods

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The world is shifting toward cleaner and more sustainable power generation to face the challenges of climate change. Renewable energy sources such as solar, wind, hydraulic are now the go-to technologies for the new power generation system. However, these sources are highly intermittent and introduce uncertainty to the power grid which affects its frequency and voltage and could jeopardize its stable operations. The integration of micro-scale concentrated solar power (MicroCSP) and thermal energy storage with the heating, ventilation, and air conditioning (HVAC) system gives the building greater leeway to control its loads which can allow it to support the power grid by providing demand response (DR) services. Indeed, the optimal control of the power flowing between the MicroCSP, the HVAC system, and the thermal zones can bring additional degrees of freedom to the building which can be relegated to the power grid based on the objective function and the incentives provided by the latter. This article presents an in-depth investigation of the MicroCSP potential to provide ancillary services to the power grid. It focuses on evaluating the effect of incentives provided by the power grid on the building participation to the load following programs. It also demonstrates how the MicroCSP can help the building deal with constraints related to load peak shaving and ramp-rate reduction set by the power grid as part of long-term DR contracts. A sensitivity analysis is carried out to confront the results to prediction uncertainties of the energy prices and the weather conditions.

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Model-based predictive control for optimal MicroCSP operation integrated with building HVAC systems

Cited by 47 publications

References 34 publications

Integration and Optimal Control of MicroCSP with Building HVAC Systems: Review and Future Directions

Integration and Optimal Control of MicroCSP with Building HVAC Systems: Review and Future Directions

Classification, experimental assessment, modeling methods and evaluation metrics of Trombe walls

Building‐to‐grid optimal control of integrated MicroCSP and building HVAC system for optimal demand response services

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