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Article: Multi-model assessment of heat decarbonisation options in the UK using electricity and hydrogen

Aunedi, Marko / Yliruka, Maria / Dehghan, Shahab / Pantaleo, Antonio Marco / Shah, Nilay / Strbac, Goran

Renewable energy. 2022 July, v. 194

2022

Abstract: Delivering low-carbon heat will require the substitution of natural gas with low-carbon alternatives such as electricity and hydrogen. The objective of this paper is to develop a method to soft-link two advanced, investment-optimising energy system ... ...

Abstract	Delivering low-carbon heat will require the substitution of natural gas with low-carbon alternatives such as electricity and hydrogen. The objective of this paper is to develop a method to soft-link two advanced, investment-optimising energy system models, RTN (Resource-Technology Network) and WeSIM (Whole-electricity System Investment Model), in order to assess cost-efficient heat decarbonisation pathways for the UK while utilising the respective strengths of the two models. The linking procedure included passing on hourly electricity prices from WeSIM as input to RTN, and returning capacities and locations of hydrogen generation and shares of electricity and hydrogen in heat supply from RTN to WeSIM. The outputs demonstrate that soft-linking can improve the quality of the solution, while providing useful insights into the cost-efficient pathways for zero-carbon heating. Quantitative results point to the cost-effectiveness of using a mix of electricity and hydrogen technologies for delivering zero-carbon heat, also demonstrating a high level of interaction between electricity and hydrogen infrastructure in a zero-carbon system. Hydrogen from gas reforming with carbon capture and storage can play a significant role in the medium term, while remaining a cost-efficient option for supplying peak heat demand in the longer term, with the bulk of heat demand being supplied by electric heat pumps.
Keywords	carbon sequestration ; cost effectiveness ; econometric models ; electricity ; energy ; heat ; hydrogen ; hydrogen production ; natural gas ; renewable energy sources
Language	English
Dates of publication	2022-07
Size	p. 1261-1276.
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	2001449-1
ISSN	1879-0682 ; 0960-1481
ISSN (online)	1879-0682
ISSN	0960-1481
DOI	10.1016/j.renene.2022.05.145
Database	NAL-Catalogue (AGRICOLA)

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Article: Thermo-economic analysis of steam accumulation and solid thermal energy storage in direct steam generation concentrated solar power plants

Al Kindi, Abdullah A. / Sapin, Paul / Pantaleo, Antonio M. / Wang, Kai / Markides, Christos N.

Energy conversion and management. 2022 Sept. 07,

2022

Abstract: In direct steam generation (DSG) concentrated solar power (CSP) plants, a common thermal energy storage (TES) option relies on steam accumulation. This conventional option is constrained by temperature and pressure limits, and delivers saturated or ... ...

Abstract	In direct steam generation (DSG) concentrated solar power (CSP) plants, a common thermal energy storage (TES) option relies on steam accumulation. This conventional option is constrained by temperature and pressure limits, and delivers saturated or slightly superheated steam at reduced pressure during discharge, which is undesirable for part-load turbine operation. However, steam accumulation can be integrated with sensible-heat storage in concrete to provide higher-temperature superheated steam at higher pressure. In this paper, this conventional steam accumulation option (existing) and an integrated concrete-steam TES option (extended) are described and analysed, and their thermo-economic performance are compared taking the 50-MW Khi Solar One DSG CSP plant in South Africa as a case study. The results show that the extended option with five 10-m long, square cross-section concrete blocks, each with 3600 equally spaced tubes, provides an additional TES capacity of 177 MWh compared to the existing configuration as a result of utilising most of the available thermal power in the solar receivers. Moreover, the extended option delivers 58% more electricity with a 13% enhancement in thermal efficiency during TES discharging mode. With an estimated additional investment of $4.2M, the levelised costs of storage and electricity for Khi Solar One with the extended TES option are, respectively, 29% and 6% lower than those obtained with the existing TES option. With the extended TES option, the projected net present value of Khi Solar One increases by 73%, from $41M to $71M, at an average electricity price of 280 $/MWh.
Keywords	administrative management ; case studies ; electricity ; electricity costs ; energy conversion ; solar energy ; steam ; temperature ; thermal energy ; South Africa
Language	English
Dates of publication	2022-0907
Publishing place	Elsevier Ltd
Document type	Article
Note	Pre-press version
ZDB-ID	2000891-0
ISSN	0196-8904
ISSN	0196-8904
DOI	10.1016/j.enconman.2022.116222
Database	NAL-Catalogue (AGRICOLA)

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Article: Thermo-economic assessment of flexible nuclear power plants in future low-carbon electricity systems: Role of thermal energy storage

Al Kindi, Abdullah A. / Aunedi, Marko / Pantaleo, Antonio M. / Strbac, Goran / Markides, Christos N.

Energy conversion and management. 2022 Apr. 15, v. 258

2022

Abstract: The increasing penetration of intermittent renewable power will require additional flexibility from conventional plants, in order to follow the fluctuating renewable output while guaranteeing security of energy supply. In this context, coupling nuclear ... ...

Abstract	The increasing penetration of intermittent renewable power will require additional flexibility from conventional plants, in order to follow the fluctuating renewable output while guaranteeing security of energy supply. In this context, coupling nuclear reactors with thermal energy storage could ensure a more continuous and efficient operation of nuclear power plants, while at other times allowing their operation to become more flexible and cost-effective. This study proposes options for upgrading a 1610-MWₑₗ nuclear power plant with the addition of a thermal energy storage system and secondary power generators. The total whole-system benefits of operating the proposed configuration are quantified for several scenarios in the context of the UK’s national electricity system using a whole-system model that minimises the total system costs. The proposed configuration allows the plant to generate up to 2130MWₑₗ during peak load, representing an increase of 32% in nominal rated power. This 520MWₑₗ of additional power is generated by secondary steam Rankine cycle systems (i.e., with optimised cycle thermal efficiencies of 24% and 30%) and by utilising thermal energy storage tanks with a total heat storage capacity of 1950MWhₜₕ. Replacing conventional with flexible nuclear power plants is found to generate whole-system cost savings between £24.3m/yr and £88.9m/yr, with the highest benefit achieved when stored heat is fully discharged in 0.5 h. At an estimated cost of added flexibility of £42.7m/yr, the proposed flexibility upgrades to such nuclear power plants appears to be economically justified with net system benefits ranging from £4.0m/yr to £31.6m/yr for the examined low-carbon scenarios, provided that the number of flexible nuclear plants in the system is small. This suggests that the value of this technology is system dependent, and that system characteristics should be adequately considered when evaluating the benefits of different flexible nuclear plant configurations and choosing the most cost-effective designs and operational characteristics.
Keywords	administrative management ; cost effectiveness ; cost estimates ; electricity ; energy conversion ; heat ; models ; nuclear power ; power plants ; steam ; thermal energy
Language	English
Dates of publication	2022-0415
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	2000891-0
ISSN	0196-8904
ISSN	0196-8904
DOI	10.1016/j.enconman.2022.115484
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Efficiency of Fe

El Nemr, Ahmed / Hassaan, Mohamed A / Elkatory, Marwa R / Ragab, Safaa / Pantaleo, Antonio

Molecules (Basel, Switzerland)

2021 Volume 26, Issue 16

Abstract: In this work, different pretreatment methods for algae proved to be very effective in improving cell wall dissociation for biogas production. In this study, ... ...

Abstract	In this work, different pretreatment methods for algae proved to be very effective in improving cell wall dissociation for biogas production. In this study, the
MeSH term(s)	Anaerobiosis ; Biofuels/analysis ; Ferric Compounds/chemistry ; Kinetics ; Nanoparticles/chemistry ; Nanoparticles/ultrastructure ; Particle Size ; Seaweed/chemistry ; Spectroscopy, Fourier Transform Infrared ; Spectrum Analysis, Raman ; Thermogravimetry ; Ulva/chemistry ; X-Ray Diffraction
Chemical Substances	Biofuels ; Ferric Compounds ; ferric oxide (1K09F3G675)
Language	English
Publishing date	2021-08-23
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	1413402-0
ISSN	1420-3049 ; 1431-5165 ; 1420-3049
ISSN (online)	1420-3049
ISSN	1431-5165 ; 1420-3049
DOI	10.3390/molecules26165105
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Article: Modelling of national and local interactions between heat and electricity networks in low-carbon energy systems

Aunedi, Marko / Pantaleo, Antonio Marco / Kuriyan, Kamal / Strbac, Goran / Shah, Nilay

Applied energy. 2020 Oct. 15, v. 276

2020

Abstract: Decarbonisation of the heating and cooling sector is critical for achieving long-term energy and climate change objectives. Closer integration between heating/cooling and electricity systems can provide additional flexibility required to support the ... ...

Abstract	Decarbonisation of the heating and cooling sector is critical for achieving long-term energy and climate change objectives. Closer integration between heating/cooling and electricity systems can provide additional flexibility required to support the integration of variable renewables and other low-carbon energy sources. This paper proposes a framework for identifying cost-efficient solutions for supplying district heating systems within both operation and investment timescales, while considering local and national-level interactions between heat and electricity infrastructures. The proposed optimisation model minimises the levelised cost of a portfolio of heating technologies, and in particular Combined Heat and Power (CHP) and polygeneration systems, centralised heat pumps (HPs), centralised boilers and thermal energy storage (TES). A number of illustrative case studies are presented, quantifying the impact of renewable penetration, electricity price volatility, local grid constraints and local emission targets on optimal planning and operation of heat production assets. The sensitivity analysis demonstrates that the cost-optimal TES capacity could increase by 41–134% in order to manage a constraint in the local electricity grid, while in systems with higher RES penetration reflected in higher electricity price volatility it may be optimal to increase the TES capacity by 50–66% compared to constant prices, allowing centralised electric HP technologies to divert excess electricity produced by intermittent renewable generators to the heating sector. This confirms the importance of reflecting the whole-system value of heating technologies in the underlying cost-benefit analysis of heat networks.
Keywords	climate change ; cost benefit analysis ; cost effectiveness ; electricity ; electricity costs ; heat production ; models ; thermal energy
Language	English
Dates of publication	2020-1015
Publishing place	Elsevier Ltd
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	2000772-3
ISSN	0306-2619
ISSN	0306-2619
DOI	10.1016/j.apenergy.2020.115522
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Microporous Activated Carbon from

El-Nemr, Mohamed A / El Nemr, Ahmed / Hassaan, Mohamed A / Ragab, Safaa / Tedone, Luigi / De Mastro, Giuseppe / Pantaleo, Antonio

Molecules (Basel, Switzerland)

2022 Volume 27, Issue 15

Abstract: This work demonstrates the preparation of high-surface-area activated carbon (AC) ... ...

Abstract	This work demonstrates the preparation of high-surface-area activated carbon (AC) from
MeSH term(s)	Adsorption ; Azo Compounds ; Benzenesulfonates ; Charcoal ; Hydrogen-Ion Concentration ; Kinetics ; Pisum sativum ; Water ; Water Pollutants, Chemical/analysis
Chemical Substances	Azo Compounds ; Benzenesulfonates ; Water Pollutants, Chemical ; Water (059QF0KO0R) ; Charcoal (16291-96-6) ; 2-naphthol orange (Q1LIY3BO0U)
Language	English
Publishing date	2022-07-28
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	1413402-0
ISSN	1420-3049 ; 1431-5165 ; 1420-3049
ISSN (online)	1420-3049
ISSN	1431-5165 ; 1420-3049
DOI	10.3390/molecules27154840
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Article ; Online: Mitigation and Remediation Technologies of Waxy Crude Oils' Deposition within Transportation Pipelines: A Review.

Elkatory, Marwa R / Soliman, Emad A / El Nemr, Ahmed / Hassaan, Mohamed A / Ragab, Safaa / El-Nemr, Mohamed A / Pantaleo, Antonio

Polymers

2022 Volume 14, Issue 16

Abstract: Deposition of wax is considered one of the most significant culprits in transporting petroleum crude oils, particularly at low temperatures. When lowering pressure and temperature during the flow of crude oil, the micelle structure of the crude oil is ... ...

Abstract	Deposition of wax is considered one of the most significant culprits in transporting petroleum crude oils, particularly at low temperatures. When lowering pressure and temperature during the flow of crude oil, the micelle structure of the crude oil is destabilized, allowing oil viscosity to increase and precipitating paraffin (wax) in the well tubulars and pipeline, which increase the complexity of this culprit. These deposited substances can lead to the plugging of production and flow lines, causing a decline in oil production and, subsequently, bulk economic risks for the oil companies. Hence, various approaches have been commercially employed to prevent or remediate wax deposition. However, further research is still going on to develop more efficient techniques. These techniques can be categorized into chemical, physical, and biological ones and hybridized or combined techniques that apply one or more of these techniques. This review focused on all these technologies and the advantages and disadvantages of these technologies.
Language	English
Publishing date	2022-08-09
Publishing country	Switzerland
Document type	Journal Article ; Review
ZDB-ID	2527146-5
ISSN	2073-4360 ; 2073-4360
ISSN (online)	2073-4360
ISSN	2073-4360
DOI	10.3390/polym14163231
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: Multi-model assessment of heat decarbonisation options in the UK using electricity and hydrogen

Aunedi, Marko / Yliruka, Maria / Dehghan, Shahab / Pantaleo, Antonio Marco / Shah, Nilay / Strbac, Goran

2022

Abstract	Delivering low-carbon heat will require the substitution of natural gas with low-carbon alternatives such as electricity and hydrogen. The objective of this paper is to develop a method to soft-link two advanced, investment-optimising energy system models, RTN (Resource-Technology Network) and WeSIM (Whole-electricity System Investment Model), in order to assess cost-efficient heat decarbonisation pathways for the UK while utilising the respective strengths of the two models. The linking procedure included passing on hourly electricity prices from WeSIM as input to RTN, and returning capacities and locations of hydrogen generation and shares of electricity and hydrogen in heat supply from RTN to WeSIM. The outputs demonstrate that soft-linking can improve the quality of the solution, while providing useful insights into the cost-efficient pathways for zero-carbon heating. Quantitative results point to the cost-effectiveness of using a mix of electricity and hydrogen technologies for delivering zero-carbon heat, also demonstrating a high level of interaction between electricity and hydrogen infrastructure in a zero-carbon system. Hydrogen from gas reforming with carbon capture and storage can play a significant role in the medium term, while remaining a cost-efficient option for supplying peak heat demand in the longer term, with the bulk of heat demand being supplied by electric heat pumps.
Keywords	Electrical Engineering and Systems Science - Systems and Control
Subject code	621
Publishing date	2022-06-06
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Delivering net-zero carbon heat: Technoeconomic and whole-system comparisons of domestic electricity- and hydrogen-driven technologies in the UK

Olympios, Andreas V. / Aunedi, Marko / Mersch, Matthias / Krishnaswamy, Aniruddh / Stollery, Corinne / Pantaleo, Antonio M. / Sapin, Paul / Strbac, Goran / Markides, Christos N.

Energy conversion and management. 2022 Apr. 16,

2022

Abstract: Proposed sustainable transition pathways for moving away from natural gas in domestic heating focus on two main energy vectors: electricity and hydrogen. Electrification would be implemented by using vapour-compression heat pumps, which are currently ... ...

Abstract	Proposed sustainable transition pathways for moving away from natural gas in domestic heating focus on two main energy vectors: electricity and hydrogen. Electrification would be implemented by using vapour-compression heat pumps, which are currently experiencing market growth in many countries. On the other hand, hydrogen could substitute natural gas in boilers or be used in thermally–driven absorption heat pumps. In this paper, a consistent thermodynamic and economic methodology is developed to assess the competitiveness of these options. The three technologies, along with the option of district heating, are for the first time compared for different weather/ambient conditions and fuel-price scenarios, first from a homeowner’s and then from a whole-energy system perspective. For the former, two-dimensional decision maps are generated to identify the most cost-effective technologies for different combinations of fuel prices. It is shown that, in the UK, hydrogen technologies are economically favourable if hydrogen is supplied to domestic end-users at a price below half of the electricity price. Otherwise, electrification and the use of conventional electric heat pumps will be preferred. From a whole-energy system perspective, the total system cost per household (which accounts for upstream generation and storage, as well as technology investment, installation and maintenance) associated with electric heat pumps varies between 790-880 £/year for different scenarios, making it the least-cost decarbonisation pathway. If hydrogen is produced by electrolysis, the total system cost associated with hydrogen technologies is notably higher, varying between 1410-1880 £/year. However, this total system cost drops to 1150£/year with hydrogen produced cost-effectively by methane reforming and carbon capture and storage, thus reducing the gap between electric and hydrogen technologies.
Keywords	absorption ; administrative management ; carbon ; carbon sequestration ; cost effectiveness ; electricity ; electricity costs ; electrolysis ; energy conversion ; heat ; hydrogen ; markets ; methane ; natural gas ; prices ; weather
Language	English
Dates of publication	2022-0416
Publishing place	Elsevier Ltd
Document type	Article
Note	Pre-press version
ZDB-ID	2000891-0
ISSN	0196-8904
ISSN	0196-8904
DOI	10.1016/j.enconman.2022.115649
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Reply.

Pantaleo, Antonio / Jafrancesco, Giuliano / Lovato, Luigi / Pacini, Davide

The Annals of thoracic surgery

2017 Volume 103, Issue 6, Page(s) 2023–2024

Language	English
Publishing date	2017
Publishing country	Netherlands
Document type	Letter ; Comment
ZDB-ID	211007-6
ISSN	1552-6259 ; 0003-4975
ISSN (online)	1552-6259
ISSN	0003-4975
DOI	10.1016/j.athoracsur.2016.12.034
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