Browsing by Author "Hanak, Dawid"

Now showing 1 - 11 of 11
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    A three-step weather data approach in solar energy prediction using machine learning
    (Elsevier, 2024-09) Falope, Tolulope Olumuyiwa; Lao, Liyun; Hanak, Dawid
    Solar energy plays a critical part in lowering CO2 emissions and other greenhouse gases when integrated into the grid. Higher solar energy penetration is hindered by its intermittency leading to reliability issues. To forecast solar energy production, this study suggests a three-step forecasting method that selects weather variables with a moderate to strong positive correlation to solar radiation using Pearson correlation coefficient analysis. Low-level data fusion is used to combine weather inputs from a reliable local weather station and an on-site weather station, significantly improving the forecasting model's accuracy regardless of the machine learning method used. Weather data was obtained from the Kisanhub Weather Station located in Cranfield University, UK and the meteorological station in Bedford, UK. In addition, PV power supply data was obtained from four solar plants. Using the Regression Learner app in MATLAB, the proposed architecture is tested on a utility scale solar plant (1 MW), showing a 6% and 13% prediction accuracy improvement when compared to solely using data from the on-site and local weather station respectively. It is further validated using data from three residential rooftop solar systems (8 kW, 10.5 kW and 15 kW), achieving root-mean square values of 0.0984, 0.0885, and 0.1425 respectively. The data was pre-processed using both rescaling and list-wise deletion methods. Training and testing data from the 1 MW solar plant was divided into 75% and 25% respectively, while 100% of the residential rooftop solar plants was used for validation.
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    Calcium looping combustion for high-efficiency low-emission power generation
    (Cranfield University, 2017-05-23 10:03) Hanak, Dawid; Manovic, Vasilije
    Supplementary information to Hanak DP and Manovic V (2017), "Calcium looping combustion for high-efficiency low-emission power generation", Journal of Cleaner Production. Dawid P. Hanak, Vasilije ManovicCombustion and CCS Centre, Cranfield University, Bedford, Bedfordshire, MK43 0AL, UK.Corresponding author: *Dawid P. Hanak, d.p.hanak@cranfield.ac.ukTable S-1: Comparison of the solid rates in calcium looping combustion and chemical looping combustionCalcium looping values given are from this study (revised basis, without CCU).Chemical looping values are from M. Spinelli, P. Peltola, A. Bischi, J. Ritvanen, T. Hyppänen and M. C. Romano, Energy, 2016, 103, 646–659.
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    Combined heat and power generation with lime production for direct air capture - Dataset
    (Cranfield University, 2018-01-25 09:16) Hanak, Dawid; Manovic, Vasilije
    A dataset for the article 'Combined heat and power generation with lime production for direct air capture'.
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    Data for "Techno-economic feasibility assessment of calcium looping combustion using commercial technology appraisal tools"
    (Cranfield University, 2019-02-13 11:11) Michalski, Sebastian; Hanak, Dawid; Manovic, Vasilije
    Dataset for publication: "Techno-economic feasibility assessment of calcium looping combustion using commercial technology appraisal tools", Journal of Cleaner Production
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    Dataset underpinning the Publication "Unlocking the potential of pulp and paper industry to achieve carbon-negative emissions via calcium looping retrofit"
    (Cranfield University, 2020-10-14 12:51) Hanak, Dawid; Da Silva Santos, Monica; Manovic, Vasilije
    Dataset for 'Unlocking the potential of pulp and paper industry to achieve carbon-negative emissions via calcium looping retrofit' manuscript in Journal of Cleaner Production
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    Economic feasibility of calcium looping under uncertainty - Supporting Information
    (Cranfield University, 2017-12-14 09:16) Hanak, Dawid; Manovic, Vasilije
    Supporting information to Economic feasibility of calcium looping under uncertainty.
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    Hybrid energy system integration and management for solar energy: a review
    (Elsevier, 2024-01-12) Falope, Tolulope; Lao, Liyun; Hanak, Dawid; Huo, Da
    The conventional grid is increasingly integrating renewable energy sources like solar energy to lower carbon emissions and other greenhouse gases. While energy management systems support grid integration by balancing power supply with demand, they are usually either predictive or real-time and therefore unable to utilise the full array of supply and demand responses, limiting grid integration of renewable energy sources. This limitation is overcome by an integrated energy management system. This review examines various concepts related to the integrated energy management system such as the power system configurations it operates in, and the types of supply and demand side responses. These concepts and approaches are particularly relevant for power systems that rely heavily on solar energy and have constraints on energy supply and costs. Building on from there, a comprehensive overview of current research and progress regarding the development of integrated energy management system frameworks, that have both predictive and real-time energy management capabilities, is provided. The potential benefits of an energy management system that integrates solar power forecasting, demand-side management, and supply-side management are explored. Furthermore, design considerations are proposed for creating solar energy forecasting models. The findings from this review have the potential to inform ongoing studies on the design and implementation of integrated energy management system, and their effect on power systems.
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    Statistical analysis of carbonate looping process feasibility
    (Cranfield University, 2018-10-09 15:20) Hanak, Dawid; Michalski, Sebastian; Manovic, Vasilije
    Data produced during the statistical evaluation of the techno-economic feasibility of CaL concepts using data available in the current literature
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    SummaryData.xlsx
    (Cranfield University, 2020-04-22 11:48) Hanak, Dawid; Manovic, Vasilije; Michalski, Sebastian
    Dataset for manuscript entitled "Advanced power cycles for coal-fired power plants based on calcium looping combustion: a techno-economic feasibility assessment"
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    Techno-economic assessment of decarbonization pathways for a gas to liquid facility: a review
    (Elsevier, 2024-12) Awani, Kelvin; Hanak, Dawid; Kumar, Vinod; Nabavi, Seyed Ali
    An overview of gas-to-liquid (GTL) fuels which explores various approaches to decarbonizing gas-to-liquid facilities is here presented. The review discusses optimization of heat integration in the air separation unit (ASU) to reduce energy requirements, the implementation of loop reactor concepts and gas-to-liquid looping to decrease CO2 emissions, the use of amine absorber/stripper systems and reforming configurations to enhance CO2 consumption, and the utilization of staged Fischer-Tropsch (FT) reactors to improve CO2 recovery and tail gas recycle performance. The integration of gas-to-liquid processes with power plants and ammonia/urea synthesis plants is also examined as a means of utilizing CO2 and improving process economics. The review further highlights the potential of power-based oxygen and hydrogen in biomass-to-liquid (BtL) processes for higher carbon efficiency and reduced greenhouse gas emissions. Techno-economic assessments were reviewed to evaluate the feasibility and profitability of different decarbonization pathways, considering factors such as capital and operational expenditures, product prices, internal rates of return (IRR), and carbon efficiency. The review identified challenges in water treatment and hydrogen purification for gas-to-liquid and small-scale gas-to-liquid plants. The findings emphasized the need for a comprehensive framework to mitigate CO2 emissions from gas-to-liquid facilities and facilitate the effective decarbonization of the oil and gas industry.
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    Techno-economic feasibility assessment of CO2 capture from coal-fired power plants using molecularly imprinted polymer - Dataset
    (Cranfield University, 2017-12-14 09:16) Hanak, Dawid; Manovic, Vasilije
    A dataset for the article 'Techno-economic analysis feasibility assessment of CO2 capture from coal-fired power plants using molecularly imprinted polymer'.