Business models combining heat pumps and district heating in buildings generate cost and emission savings

Lygnerud, Kristina; Ottosson, Jonas; Kensby, Johan; Johansson, Lars

doi:10.1016/j.energy.2021.121202

Cited by 28 publications

(12 citation statements)

References 43 publications

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“…The district heat of CLC plants using ilmenite and LD slag is 29.91% and 9.12% less expensive, respectively, compared to the plant with PCC. The levelized cost of district heating given in the literature are 4.17 € GJ −1 , [ 56 ] 11.39 € GJ −1 , [ 57 ] 5.56, [ 58 ] and 4.83 € GJ −1 . [ 59 ] Hence, the DH cost for both the CLC cases is within the range given in the literature [ 41 ] with ilmenite‐based plant being the most economical.…”

Section: Resultsmentioning

confidence: 99%

Energy, Exergy, Economic and Exergoeconomic Analyses of Chemical Looping Combustion Plant Using Waste Bark for District Heat and Power Generation with Negative Emissions

Surywanshi,

Leion,

Soleimanisalim

2023

Energy Tech

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The greenhouse gas emissions from the boiler of pulp and paper industries can be minimized by adapting chemical looping combustion (CLC) technology. This work aims to analyze the energy, exergy, economic, and exergoeconomic performance of an industrial scale CLC plant for district heat and electricity generation using waste bark from the paper and pulp industry. The CLC plant with one natural ore and one industrial waste oxygen carrier (OC) is modeled using Aspen Plus. The performance of the CLC plant has been compared to Örtofta combined heat and power plant without CO2 capture and with post‐combustion CO2 capture as the reference cases. Results showed that the CLC‐based power plant is energetically, exegetically, and economically efficient compared to the reference cases. The circulating fluidized bed boiler unit contributes the highest exergy destruction (about 50–80%). Among the CO2 capture plants, the CLC plant with ilmenite has the lowest levelized cost of district heat (4.58 € GJ−1), and a payback period (9.69 years) followed by the CLC plant with LD slag (5.91 € GJ−1 and 11.84 years), and the plant with PCC (6.94 € GJ−1 and 13.58 years). The exergoeconomic analysis reveals that the CLC reactors have the highest cost reduction potential, followed by the steam turbine.

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Section: Resultsmentioning

confidence: 99%

Energy, Exergy, Economic and Exergoeconomic Analyses of Chemical Looping Combustion Plant Using Waste Bark for District Heat and Power Generation with Negative Emissions

Surywanshi,

Leion,

Soleimanisalim

2023

Energy Tech

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“…temperature is suggested for running cost saving concern during off-peak months [19]. Furthermore, the energy cost saving at an average of about 60% also presented an annual saving of about USD 20,000 for the dorms by using a heat pump water heating system under the electricity billing rate of Taiwan.…”

Section: Resultsmentioning

confidence: 99%

“…It also reveals the energy cost could be reduced obviously by the retrofitting of a heat pump water heating system. A different set point for the hot water temperature is suggested for running cost saving concern during off-peak months [19]. Furthermore, the energy cost saving at an average of about 60% also presented an annual saving of about USD 20,000 for the dorms by using a heat pump water heating system under the electricity billing rate of Taiwan.…”

Section: Resultsmentioning

confidence: 99%

“…The measurements needed to perform the diagnosis are an analyzed opportunity to reduce the energy needed in buildings. Moreover, business models combining heat pumps and district heating in buildings can be profitable, which will achieve maximum cost saving of 33% and emission savings of 75% [19]. In addition, Bellanco [20] also presented an extensive review about the fault behavior of heat pumps and measurement methods including various virtual sensors.…”

Section: Introductionmentioning

confidence: 99%

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Energy Efficient Approaches by Retrofitting Heat Pumps Water Heating System for a University Dormitory

et al. 2021

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With the cost of energy rising, the value of conservation grows. Interest in energy efficiency could be a sound investment or a necessary public policy. Heat pump systems provide economical alternatives of recovering heat from different sources for use in various applications. The objective of this study is to present the strategic approach on the energy efficient analysis of the water heating system retrofitted by applying a heat pump system in the dormitory of a university. Energy savings were determined by comparing field measurements of water consumption, water temperature and power consumption of the overall system before (electric resistance heating system) and after (heat pump heating system) the implementation of this project. Furthermore, the building energy simulation code (eQuest) has been applied to verify and predict the long-term energy consumption for both water heating systems. The results from energy modelling revealed the good agreement for energy simulation and field measurement data and the improvement of energy efficiency and energy savings could be achieved satisfactorily by retrofitting of a heat pump system. The energy conversion efficiency of hot water for energy consumption at 0.63 (Mcal/Mcal) could be achieved after the application of heat pump water heating system. It also presented the annual saving about USD 20,000 (NTD 600,000) for the dorm by using a heat pump heating system under the electrical billing rate of Taiwan.

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“…Due to minimum capacity requirements, individual buildings are often not allowed to participate in reserve programs, unless their loads are aggregated [14,16,19] . Besides aggregating individual buildings [20] , entire district heating and cooling systems could potentially be used to provide reserves, if heating or cooling is supplied with large-scale heat pumps [21,22] . This possibility is facilitated by the trend towards lowtemperature heating and high-temperature cooling networks [23,24] as these allow heat pumps to be operated at higher efficiency, making them a cost-effective alternative to boilers or combined heat and power units.…”

Section: Introductionmentioning

confidence: 99%

Increasing electrical reserve provision in districts by exploiting energy flexibility of buildings with robust model predictive control

Bünning¹,

Heer²,

Smith³

et al. 2023

Advances in Applied Energy

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Business models combining heat pumps and district heating in buildings generate cost and emission savings

Cited by 28 publications

References 43 publications

Energy, Exergy, Economic and Exergoeconomic Analyses of Chemical Looping Combustion Plant Using Waste Bark for District Heat and Power Generation with Negative Emissions

Energy, Exergy, Economic and Exergoeconomic Analyses of Chemical Looping Combustion Plant Using Waste Bark for District Heat and Power Generation with Negative Emissions

Energy Efficient Approaches by Retrofitting Heat Pumps Water Heating System for a University Dormitory

Increasing electrical reserve provision in districts by exploiting energy flexibility of buildings with robust model predictive control

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