Modeling of a thermal energy storage system coupled with combined heat and power generation for the heating requirements of a University Campus

Pagliarini, G.; Rainieri, Sara

doi:10.1016/j.applthermaleng.2010.02.008

Cited by 63 publications

(28 citation statements)

References 14 publications

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“…Details of this configuration have been reported by Mago (2012a, 2012b). D-CHP strategies have been suggested (Bullock and Weingarden 2006;Pagliarini and Rainieri 2010) as ways to improve the overall CHP system efficiency; however, little analysis has been performed to support this idea. Mago (2012a, 2012b) suggested that D-CHP systems could produce greater, or at least equivalent, savings over traditional CHP operational schemes such as BL-CHP or CHP-FEL.…”

Section: Introductionmentioning

confidence: 96%

Potential emissions reductions from the use of dual-combined heat and power systems in different climate conditions

Knizley

Mago

2013

International Journal of Ambient Energy

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In this paper, the potential carbon dioxide emissions (CDE) reduction from the use of a combined heat and power system with two power generation units (D-CHP) is examined for a restaurant building in nine different climate conditions. The performance of the D-CHP system is evaluated on the basis of CDE and operational cost savings. In addition, the results from the D-CHP optimised scheme are compared with the optimised results of a base-loaded CHP (BL-CHP) system and a CHP system operated following the electric load (CHP-FEL). Results show that the D-CHP system produces greater savings over BL-CHP and CHP-FEL for most of the locations examined, whether optimised based on CDE or based on cost. Moreover, the effect of the emissions and cost spark spreads for each location on the D-CHP system performance is analysed. Results indicate that higher spark spreads are shown to yield greater savings for all CHP configurations.

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Section: Introductionmentioning

confidence: 96%

Potential emissions reductions from the use of dual-combined heat and power systems in different climate conditions

Knizley

Mago

2013

International Journal of Ambient Energy

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“…Similar strategies have been proposed in earlier research, but little analysis has been carried out to determine the feasibility of such a strategy . Pagliarini and Rainieri suggest that a 2‐CHP system could be beneficial but do not include a feasibility analysis of such a system. Verda and Colella examine a 2‐CHP system to conclude that it provides a greater reduction in primary energy consumption than a single‐PGU configuration.…”

Section: Introductionmentioning

confidence: 99%

Combined heat and power systems with dual power generation units and thermal storage

Mago

Luck

Knizley

2013

Int. J. Energy Res.

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SUMMARY The objective of this paper is to study the performance of a combined heat and power (CHP) system that uses two power generation units (PGU). In addition, the effect of thermal energy storage is evaluated for the proposed dual‐PGU CHP configuration (D‐CHP). Two scenarios are evaluated in this paper. In the first scenario, one PGU operates at base‐loading condition, while the second PGU operates following the electric load. In the second scenario, one PGU operates at base‐loading condition, while the second PGU operates following the thermal load. The D‐CHP system is modeled for the same building in four different locations to account for variation of the electric and thermal loads due to weather data. The D‐CHP system results are compared with the reference building by using conventional technology to determine the benefits of this proposed system in terms of operational cost and carbon dioxide emissions. The D‐CHP system results, with and without thermal storage, are also compared with that of single‐PGU CHP systems operating following the electric load (FEL), following the thermal load (FTL), and base‐loaded (BL). Results indicate that the D‐CHP system operating either FEL or FTL in general provides better results than a single‐PGU CHP system operating FEL, FTL, or BL. The addition of thermal storage enhances the potential benefits from D‐CHP system operation in terms of operational cost savings and emissions savings. Copyright © 2013 John Wiley & Sons, Ltd.

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“…Quite often, thermal storage is added to a CHP system to allow for the excess in heat produced to be stored for later use [6]. A good thermal storage should ensure that the stored heat is not expelled into the environment, which requires good insulation.…”

Section: Introductionmentioning

confidence: 99%

Modelling of a CHP system with electrical and thermal storage

Abunku¹,

Melis

2015

2015 50th International Universities Power Engineering Conference (UPEC)

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Abstract-Decentralised energy generation is increasing in popularity because it provides for higher efficiencies and is consequently more environment friendly than the current centralised solutions. Most of the inefficiencies of centralised power stations lie in the large amount of waste heat. This is largely overcome when using Combined Heat and Power systems where the heat as well as the electrical output is used, but these outputs are generally constant, while any demand would be continuously fluctuating. The only way to deal with this imbalance between supply and demand is through the use of energy storage, and therefore this paper investigates the benefits of combining energy storage systems with a CHP system to determine the potential efficiency improvements from such a combination. A full model of this system, which consisted of several sub-models to deal with the various elements of energy generation and storage was developed in Matlab/Simulink and used for simulation using some real-life demand data. The results show that through the addition of correctly sized thermal and electrical storage to a CHP system, the CHP system is able to run continuously at optimal efficiency.

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Modeling of a thermal energy storage system coupled with combined heat and power generation for the heating requirements of a University Campus

Cited by 63 publications

References 14 publications

Potential emissions reductions from the use of dual-combined heat and power systems in different climate conditions

Potential emissions reductions from the use of dual-combined heat and power systems in different climate conditions

Combined heat and power systems with dual power generation units and thermal storage

Modelling of a CHP system with electrical and thermal storage

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