Hybrid heating system for increased energy efficiency and flexible control of low temperature heat

Schumm, Gregor M.; Philipp, Matthias; Schlosser, Florian; Hesselbach, Jens; Walmsley, Timothy Gordon; Atkins, Martin John

doi:10.1007/s12053-017-9584-6

Cited by 8 publications

(6 citation statements)

References 17 publications

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“…However, when a process relies on different sources of energy, this issue can be overcome. For example, [6] studied an option of implementing a low-temperature hybrid heating system in the dairy industry. The study analyzes additional sources of energy, such as RE, heat pumps and grid electricity, to generate heat as a supplement to the high-temperature source of energy.…”

Section: ) Hybrid Heating Systemsmentioning

confidence: 99%

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Review of Energy Efficiency Technologies in the Food Industry: Trends, Barriers, and Opportunities

et al. 2020

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The industry sector has a significant responsibility for the depletion of fossil fuels and emission of carbon dioxide. Thus, several initiatives have been implemented by the industry sector to mitigate those issues. One initiative corresponds to the implementation of energy efficiency strategies. In particular, the food industry is heavily dependent on fossil fuels, and the food demand is expected to grow significantly in the coming years. Therefore, developing energy efficiency strategies for this particular industrial sector is crucial. This paper investigates the different opportunities for energy efficiency in the food industry. It first provides a brief overview of the various food industries and related energy consumption. Then, the different options for energy efficiency in the thermal and electric sector are discussed. New trends and opportunities, arising from industry 4.0 and demand response, are also presented.INDEX TERMS Energy efficiency, food industry, industry 4.0, renewable energy, waste-to-energy.

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Section: ) Hybrid Heating Systemsmentioning

confidence: 99%

“…ities to properly manage electricity consumption [4]- [6]. Energy efficiency initiatives enable large industries to reduce their consumption and improve their operational output, thereby improving their benefits [7].…”

Section: Introductionmentioning

confidence: 99%

Review of Energy Efficiency Technologies in the Food Industry: Trends, Barriers, and Opportunities

et al. 2020

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“…Assuming that the daily electricity price does not change, we compare the system's environmental and economic benefits in the heat following and electricity following modes under different gas turbine capacities. The Monte-Carlo simulation method can simulate the load demand of 8760 hours a year for 30 electric vehicles in the case of disorderly charging [8]. We take 24 hours on a particular day in January of a year as an example and make a load curve, as shown in fig.…”

Section: Example Systemmentioning

confidence: 99%

Cogeneration and heat exchanger control system based on clean energy

Jiangcai

2021

THERM SCI

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Combined cooling, heating, and power systems have received widespread attention for their high efficiency and clean characteristics. The combined cooling, heating, and power system will join the cogeneration system as clean energy and renewable resource of solar energy, further alleviating the energy crisis and environmental pollution problems. To improve the stability of the distributed power grid connection, the article designs a photovoltaic battery system that can smooth the output power and combines it with the traditional combined cooling, heating, and power system to build a comprehensive cogeneration system. Under the two operating modes of thermal follow, and electric follow, considering the impact of electric vehicle charging load, two environmental cost and life cycle cost indicators are evaluated.

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“…Bonilla and Roca [23] developed and experimentally tested a PI control loop for heat recovery from gas turbine exhaust gas, supplying a molten salt TES used in a renewable hybrid power plant. Schumm et al [24] considered hot water and steam mixing as a part of heat integration and recovery of low-temperature surplus heat in a cheese and whey powder plant, and developed a logic-based control scheme for the hybrid heat supply. Walmsley et al [25] considered heat-recovery loops for inter-plant heat integration with use of solar heating, and applied conventional PI control for constant temperature set-point tracking of a TES unit.…”

Section: Related Work and Main Contributionmentioning

confidence: 99%

An Optimal-Control Scheme for Coordinated Surplus-Heat Exchange in Industry Clusters

2019

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Industrial plants organized in clusters may improve their economics and energy efficiency by exchanging and utilizing surplus heat. However, integrating inherently dynamic processes and highly time-varying surplus-heat supplies and demands is challenging. To this end, a structured optimization and control framework may significantly improve inter-plant surplus-heat valorization. We present a Modelica-based systems model and optimal-control scheme for surplus-heat exchange in industrial clusters. An industry-cluster operator is assumed to coordinate and control the surplus-heat exchange infrastructure and responsible for handling the surplus heat and satisfy the sink plants’ heat demands. As a case study, we use an industry cluster consisting of two plants with surplus heat available and two plants with heat demand. The total surplus heat and heat demand are equal, but the availability and demand are highly asynchronous. By optimally utilizing demand predictions and a thermal energy storage (TES) unit, the operator is able to supply more than 98% of the deficit heat as surplus heat from the plants in the industry cluster, while only 77% in a corresponding case without TES. We argue that the proposed framework and case study illustrates a direction for increasing inter-plant surplus-heat utilization in industry clusters with reduced use of peak heating, often associated with high costs or emissions.

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Hybrid heating system for increased energy efficiency and flexible control of low temperature heat

Cited by 8 publications

References 17 publications

Review of Energy Efficiency Technologies in the Food Industry: Trends, Barriers, and Opportunities

Review of Energy Efficiency Technologies in the Food Industry: Trends, Barriers, and Opportunities

Cogeneration and heat exchanger control system based on clean energy

An Optimal-Control Scheme for Coordinated Surplus-Heat Exchange in Industry Clusters

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