Designing an optimal solar collector (orientation, type and size) for a hybrid-CCHP system in different climates

Ebrahimi, Masood; Keshavarz, Ali

doi:10.1016/j.enbuild.2015.08.056

Cited by 36 publications

(9 citation statements)

References 22 publications

(36 reference statements)

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“…Xu et al studied the impact of renewable energy intermittency and uncertainty of load demand on distributed power supply system and proposed a distributed energy system (DES) management strategy by consistency algorithm, and the result shows that the efficiency of renewable energy is improved by an optimized management strategy. Ebrahimi et al designed the optimal conditions of solar energy collector based on different climate conditions. The study proposed a method to design the solar heating system for CCHP and proved the superiority of the hybrid CCHP.…”

Section: Introductionmentioning

confidence: 99%

Study on the operation strategy for integrated energy system with multiple complementary energy based on developed superstructure model

Zhang

2019

Int J Energy Res

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Summary The energy flow in energy supply system has become further complicated due to the addition of multiple clean primary energy and the integration of energy storage technique, which gives rise to the main challenges for integrated energy system (IES) designing on how the IES coordinates the start and stop or varying load operation of multiple equipment so as to maximize the energy conservation and emission reduction and economic benefits. In this paper, with the integration of multiple primary energy utilization technologies and combination of various energy conversions and storage equipment, a superstructure model of IES with multiple complementary energy is established by the way of gradually decomposing and modeling, taking the optimal annual total cost (ATC), primary energy consumption (PEC), and CO2 emission (CE) as the objective function, which can harmonize the energy supply and demand restrictions and the relations of energy flow in the subsystems of energy production system (EPS), energy conversion system (ECS), and energy storage system (ESS). The scientific installed capacity and optimum operation strategy can be solved by this model, which is applied for the designing of integrated energy supply scheme for one certain park. The result shows that the model is both suitable for the energy supply scheme research and the scientific and rational planning and designing for integrated energy of IES with multiple complementary energy.

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Section: Introductionmentioning

confidence: 99%

Study on the operation strategy for integrated energy system with multiple complementary energy based on developed superstructure model

Zhang

2019

Int J Energy Res

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“…Ameri et al [28] developed a mixed integer linear programming (MILP) model for determining the optimal capacity of CCHP systems with photovoltaic systems so that the initial and operating costs of the energy supply system were minimized. Ebrahimi et al [29] designed a hybrid-CCHP system that consisted of a basic CCHP system and a solar collector for a residential building in five different climates. The maximum rectangle method was applied to identify the optimal size of the prime mover.…”

Section: Introductionmentioning

confidence: 99%

Integrated Optimization Design of Combined Cooling, Heating, and Power System Coupled with Solar and Biomass Energy

et al. 2019

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The combined cooling, heating, and power (CCHP) systems coupled with solar energy and biomass energy can meet the needs of island or rural decentralized and small-scale integrated energy use, which have become increasingly popular in recent years. This study presents a renewable energy sources integrated combined cooling, heating, and power (RES-CCHP) system, driven by a biogas fueled internal combustion engine (ICE) and photovoltaic (PV) panels, which is different from the traditional natural gas CCHP system. Owing to the solar energy volatility and the constraint of biomass gas production, the traditional optimization design method is no longer applicable. To improve the energetic, economic and environmental performances of the system, an integrated design method with renewable energy capacity, power equipment capacity and key operating parameters as optimization variables is proposed. In addition, a case study of a small farm in Jinan, China, is conducted to verify the feasibility of the proposed RES–CCHP system structure and the corresponding optimal operation strategy. The results illustrate that the implementation of the optimal design is energy-efficient, economical and environmentally-friendly. The values of primary energy saving ratio, annual total cost saving rate and carbon emission reduction ratio are 20.94%, 11.73% and 40.79%, respectively. Finally, the influence of the volatility of renewable energy sources on the optimization method is analyzed, which shows that the RES–CCHP system and the method proposed are robust.

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“…Moreover, many new devices have been applied to CCHP systems to increase the efficiency of energy utilization. In Ebrahimi and Keshavarz and Luo et al, a solar collector was installed in a traditional CCHP system, and the area and direction of the solar collector were optimized. The fuel costs and pollutant emissions of conventional CCHP systems can be further reduced by applying new devices, but the impact of distributed generation on CCHP systems has not been considered.…”

Section: Introductionmentioning

confidence: 99%

“…The fuel costs and pollutant emissions of conventional CCHP systems can be further reduced by applying new devices, but the impact of distributed generation on CCHP systems has not been considered. Although solar heating technology has been introduced in some CCHP systems, solar heating technology is mainly used as an auxiliary heat source . In He et al, air energy storage was applied to a CCHP system, but the permeability of the new energy was low.…”

Section: Introductionmentioning

confidence: 99%

A high proportion of new energy access–combined cooling, heating, and power system planning method

Zhang

Niu

2019

Int J Energy Res

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Summary Distributed generation (DG) technologies are environmentally friendly and have low operating costs, and thus, distributed generators are widely used for the energy supplies of buildings. Solar energy used for on‐demand heating of buildings is also a mature technology that is environmentally friendly and inexpensive and has a short recycling life cycle. This paper proposes a high proportion of new energy access–combined cooling, heating, and power (HPNE‐CCHP) system composed of a distributed generator and solar energy heat pump system. To obtain the optimum capacity of the HPNE‐CCHP system, nondominated sorting genetic algorithm‐II (NSGA‐II) was used to optimize the system by considering the life cycle cost (LCC) and life cycle pollutant emissions (LCPE) as the objective functions. A mixed integer economic scheduling model (MIESM) was proposed to make the HPNE‐CCHP system operate more economically. Finally, an HPNE‐CCHP system was constructed for a building in Northern China. The simulation results show that an HPNE‐CCHP system with a moderate proportion of new energy is more economical and environmentally friendly than a traditional CCHP system. Building occupants, depending on their desired spending, can select the best capacity configuration on the Pareto frontier. Although pollutant emissions will be reduced as the proportion of new energy increases, this type of configuration is expensive.

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Designing an optimal solar collector (orientation, type and size) for a hybrid-CCHP system in different climates

Cited by 36 publications

References 22 publications

Study on the operation strategy for integrated energy system with multiple complementary energy based on developed superstructure model

Study on the operation strategy for integrated energy system with multiple complementary energy based on developed superstructure model

Integrated Optimization Design of Combined Cooling, Heating, and Power System Coupled with Solar and Biomass Energy

A high proportion of new energy access–combined cooling, heating, and power system planning method

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