Publications
102 results found
Lee R, Homan S, Mac Dowell N, et al., 2019, A closed-loop analysis of grid scale battery systems providing frequency response and reserve services in a variable inertia grid, APPLIED ENERGY, Vol: 236, Pages: 961-972, ISSN: 0306-2619
Daggash HA, Heuberger CF, Mac Dowell N, 2019, The role and value of negative emissions technologies in decarbonising the UK energy system, INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, Vol: 81, Pages: 181-198, ISSN: 1750-5836
Harraz AA, Freeman J, Wang K, et al., 2019, Diffusion-absorption refrigeration cycle simulations in gPROMS using SAFT-γ Mie, Energy Procedia, Vol: 158, Pages: 2360-2365, ISSN: 1876-6102
Algunaibet IM, Pozo C, Galán-Martín Á, et al., Powering sustainable development within planetary boundaries, Energy & Environmental Science, ISSN: 1754-5692
<p>Designing energy systems within planetary boundaries is crucial to preserving the Earth's ecological capacity given the power sector's environmental footprint.</p>
Patrizio P, Leduc S, Kraxner F, et al., 2018, Reducing US Coal Emissions Can Boost Employment, JOULE, Vol: 2, Pages: 2633-2648, ISSN: 2542-4351
Al-Saqlawi J, Madani K, Mac Dowell N, 2018, Techno-economic feasibility of grid-independent residential roof-top solar PV systems in Muscat, Oman, ENERGY CONVERSION AND MANAGEMENT, Vol: 178, Pages: 322-334, ISSN: 0196-8904
Bui M, Tait P, Lucquiaud M, et al., 2018, Dynamic operation and modelling of amine-based CO2 capture at pilot scale, INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, Vol: 79, Pages: 134-153, ISSN: 1750-5836
Fajardy M, Chiquier S, Mac Dowell N, 2018, Investigating the BECCS resource nexus: delivering sustainable negative emissions, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 11, Pages: 3408-3430, ISSN: 1754-5692
Budinis S, Krevor S, Mac Dowell N, et al., 2018, An assessment of CCS costs, barriers and potential, ENERGY STRATEGY REVIEWS, Vol: 22, Pages: 61-81, ISSN: 2211-467X
- Author Web Link
- Cite
- Citations: 2
Heuberger CF, Staffell I, Shah N, et al., 2018, Impact of myopic decision-making and disruptive events in power systems planning, NATURE ENERGY, Vol: 3, Pages: 634-640, ISSN: 2058-7546
Najjaran Kheirabadi A, Harraz AA, Freeman J, et al., 2018, Numerical and experimental investigations of diffusion absorption refrigeration systems for use with low temperature heat sources, ECOS 2018 - 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, Publisher: ECOS
he diffusion absorption refrigeration (DAR) cycle is a technology of increasing interest thanks to its suitabilityfor providing cooling from a thermal energyinputin a range of applications. Itcan bedistinguished from other absorption refrigeration cycles by its employment of a thermally-driven bubble pump to circulate the working fluid, which gives it anability to operate entirely off-gridwithout an electricity input. In this work,we present results from an experimentalcampaign aimed atcharacterisingthe performance of aprototypeammonia-water-hydrogen DAR system with a nominal cooling capacity of 100 W,over a range of operating conditions, specifically with a view ofadaptingthe system for use in low-temperature applications. In the experiments, the heat input to the DAR generator is provided over a range of temperatures from175to215°Cby using electrical cartridge heaters. The system is charged to 22 bar, and the ammonia mass concentration of the working fluid mixture is 30%. The resulting coefficient of performance (COP) of the system is measured in the range 0.12to 0.26. A new methodology for the selection of optimal working-fluid mixtures using the state-of-the-art, statistical associating fluid theory (SAFT) approach implemented within the process modelling software gPROMS®is also presented. The experimental results will be used for futurevalidation of a thermodynamic model of the cycle. Finally,the performance of the system in a solar application is investigated, with a thermal inputprovided by an array of evacuated tube heat pipe solar collectors. The system pressure and condensation temperature are found to be key factors in determining the performance of solar-DAR systems.
Heuberger CF, Rubin ES, Staffell L, et al., 2018, Power capacity expansion planning considering endogenous technology cost learning (vol 204, pg 831, 2017), APPLIED ENERGY, Vol: 220, Pages: 974-974, ISSN: 0306-2619
Mota-Martinez MT, Brandl P, Hallett JP, et al., 2018, Challenges and for the utilisation of ionic liquids as solvents for CO2 capture, MOLECULAR SYSTEMS DESIGN & ENGINEERING, Vol: 3, Pages: 560-571, ISSN: 2058-9689
- Author Web Link
- Open Access Link
- Cite
- Citations: 1
Schnellmann MA, Heuberger CF, Scott SA, et al., 2018, Quantifying the role and value of chemical looping combustion in future electricity systems via a retrosynthetic approach, INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, Vol: 73, Pages: 1-15, ISSN: 1750-5836
Fajardy M, Mac Dowell N, 2018, The energy return on investment of BECCS: is BECCS a threat to energy security?, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 11, Pages: 1581-1594, ISSN: 1754-5692
- Author Web Link
- Open Access Link
- Cite
- Citations: 4
Daggash HA, Patzschke CF, Heuberger CF, et al., 2018, Closing the carbon cycle to maximise climate change mitigation: power-to-methanol vs. power-to-direct air capture, SUSTAINABLE ENERGY & FUELS, Vol: 2, Pages: 1153-1169, ISSN: 2398-4902
- Author Web Link
- Open Access Link
- Cite
- Citations: 3
Bui M, Adjiman CS, Bardow A, et al., 2018, Carbon capture and storage (CCS): the way forward, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 11, Pages: 1062-1176, ISSN: 1754-5692
- Author Web Link
- Open Access Link
- Cite
- Citations: 53
Heuberger CF, Mac Dowell N, 2018, Real-World Challenges with a Rapid Transition to 100% Renewable Power Systems, JOULE, Vol: 2, Pages: 367-370, ISSN: 2542-4351
- Author Web Link
- Open Access Link
- Cite
- Citations: 1
Galan-Martin A, Pozo C, Azapagic A, et al., 2018, Time for global action: an optimised cooperative approach towards effective climate change mitigation, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 11, Pages: 572-581, ISSN: 1754-5692
- Author Web Link
- Open Access Link
- Cite
- Citations: 5
Bui M, Fajardy M, Mac Dowell N, 2018, Bio-energy with carbon capture and storage (BECCS): Opportunities for performance improvement, FUEL, Vol: 213, Pages: 164-175, ISSN: 0016-2361
- Author Web Link
- Open Access Link
- Cite
- Citations: 4
Iruretagoyena D, Sunny N, del Rio-Chanona EA, et al., 2018, Towards a low carbon economy via sorptionenhanced water gas shift and alcohol reforming, Computer Aided Chemical Engineering, Pages: 1729-1734
© 2018 Elsevier B.V. Hydrogen (H 2 ) is one of the most important raw materials in the chemical and refinery industries. H 2 is also regarded as a future “energy vector” due to its potential to act as an ultraclean fuel in the heat, power, and transport sectors. Therefore, development of efficient, low carbon routes to produce H 2 is essential to meet its current and growing demand. In particular, this has placed an imperative on improving the efficiency of steam reforming of hydrocarbons (SRH), this process being considered the most feasible and economic route to large scale H 2 production. The water gas shift reaction (WGS) is one of the most important stages of SRH, but is equilibrium limited and requires improvements in energy efficiency. In this study, we demonstrate that the overall efficiency of the WGS can be improved by removing CO 2 in situ and co-feeding alcohols such as methanol and ethanol. The feasibility of this novel concept is investigated by conducting thermodynamic analyses of the alcohol reforming/WGS (alcohol-to-shift) reactions for H 2 production alone and with simultaneous CO 2 adsorption (sorption-enhanced, SEalcohol-to-shift). To this end, a non-stoichiometric approach based on the minimisation of the Gibbs free energy is used. The results show that adding alcohols to the feed facilitates autothermal operation of the shift unit and significantly increases the amount of H 2 produced. The H 2 productivity can be further enhanced by adsorbing CO 2 in situ. The theoretical studies presented here are carried out under relevant operating conditions for SRH and aim to serve as a guideline for future work on alcohol-to-shift processes enhanced by adsorption.
Kolster C, Agada S, Mac Dowell N, et al., 2018, The impact of time-varying CO2 injection rate on large scale storage in the UK Bunter Sandstone, INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, Vol: 68, Pages: 77-85, ISSN: 1750-5836
- Author Web Link
- Open Access Link
- Cite
- Citations: 1
Heuberger CF, Staffell I, Shah N, et al., 2017, A systems approach to quantifying the value of power generation and energy storage technologies in future electricity networks, COMPUTERS & CHEMICAL ENGINEERING, Vol: 107, Pages: 247-256, ISSN: 0098-1354
- Author Web Link
- Open Access Link
- Cite
- Citations: 11
Mota-Martinez MT, Hallett JP, Mac Dowell N, 2017, Solvent selection and design for CO2 capture - how we might have been missing the point, SUSTAINABLE ENERGY & FUELS, Vol: 1, Pages: 2078-2090, ISSN: 2398-4902
- Author Web Link
- Open Access Link
- Cite
- Citations: 10
Kolster C, Masnadi MS, Krevor S, et al., 2017, CO2 enhanced oil recovery: a catalyst for gigatonne-scale carbon capture and storage deployment?, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 10, Pages: 2594-2608, ISSN: 1754-5692
- Author Web Link
- Open Access Link
- Cite
- Citations: 6
Cabral RP, Mac Dowell N, 2017, A novel methodological approach for achieving pound/MWh cost reduction of CO2 capture and storage (CCS) processes, APPLIED ENERGY, Vol: 205, Pages: 529-539, ISSN: 0306-2619
- Author Web Link
- Open Access Link
- Cite
- Citations: 4
Heuberger CF, Rubin ES, Staffell I, et al., 2017, Power capacity expansion planning considering endogenous technology cost learning, APPLIED ENERGY, Vol: 204, Pages: 831-845, ISSN: 0306-2619
- Author Web Link
- Open Access Link
- Cite
- Citations: 15
Agada S, Jackson S, Kolster C, et al., 2017, The impact of energy systems demands on pressure limited CO2 storage in the Bunter Sandstone of the UK Southern North Sea, INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, Vol: 65, Pages: 128-136, ISSN: 1750-5836
- Author Web Link
- Open Access Link
- Cite
- Citations: 4
Fajardy M, Mac Dowell N, 2017, Can BECCS deliver sustainable and resource efficient negative emissions? (vol 10, 1389, 2017), ENERGY & ENVIRONMENTAL SCIENCE, Vol: 10, Pages: 2267-2267, ISSN: 1754-5692
Psarras P, Krutka H, Fajardy M, et al., 2017, Slicing the pie: how big could carbon dioxide removal be?, WILEY INTERDISCIPLINARY REVIEWS-ENERGY AND ENVIRONMENT, Vol: 6, ISSN: 2041-8396
- Author Web Link
- Cite
- Citations: 4
This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.