Search Results - "Wackelgard, Ewa"

A high-resolution stochastic model of domestic activity patterns and electricity demand by Widén, Joakim, Wäckelgård, Ewa

“…Realistic time-resolved data on occupant behaviour, presence and energy use are important inputs to various types of simulations, including performance of…”
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Impacts of distributed photovoltaics on network voltages: Stochastic simulations of three Swedish low-voltage distribution grids by Widén, Joakim, Wäckelgård, Ewa, Paatero, Jukka, Lund, Peter

“…The continuously increasing application of distributed photovoltaics (PV-DG) in residential areas around the world calls for detailed assessment of…”
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A combined Markov-chain and bottom-up approach to modelling of domestic lighting demand by Widén, Joakim, Nilsson, Annica M., Wäckelgård, Ewa

“…Detailed simulations of distributed generation in residential areas have prompted the need for improved models of domestic electricity demand that are able to…”
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Constructing load profiles for household electricity and hot water from time-use data—Modelling approach and validation by Widén, Joakim, Lundh, Magdalena, Vassileva, Iana, Dahlquist, Erik, Ellegård, Kajsa, Wäckelgård, Ewa

“…Time-use data, describing in detail the everyday life of household members as high-resolved activity sequences, have a largely unrealized potential of…”
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Options for improving the load matching capability of distributed photovoltaics: Methodology and application to high-latitude data by Widén, Joakim, Wäckelgård, Ewa, Lund, Peter D.

“…At high latitudes, domestic electricity demand and insolation are negatively correlated on both an annual and a diurnal basis. With increasing integration of…”
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Experimental Yield Study of Bifacial PV Modules in Nordic Conditions by Molin, Elin, Stridh, Bengt, Molin, Andreas, Wackelgard, Ewa

“…This study reports on the first full-year field study in Sweden using bifacial photovoltaic modules. The two test sites are located on flat roofs with a low…”
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Development of W–SiO2 and Nb–TiO2 solar absorber coatings for combined heat and power systems at intermediate operation temperatures by Wäckelgård, Ewa, Mattsson, Andreas, Bartali, Ruben, Gerosa, Riccardo, Gottardi, Gloria, Gustavsson, Fredrik, Laidani, Nadhira, Micheli, Victor, Primetzhofer, Daniel, Rivolta, Barbara

“…Two new absorber coatings for mid-temperature operation (300–350°C) in collectors for solar thermal electricity plants are presented in this study. The…”
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Oxidation Kinetics of Nickel Particles: Comparison Between Free Particles and Particles in an Oxide Matrix by Karmhag, Richard, Tesfamichael, Tuquabo, Wäckelgård, Ewa, Niklasson, Gunnar A, Nygren, Mats

“…The degradation of selective solar absorbers through oxidation has been studied. We compare the oxidation kinetics of nickel particles of various sizes. Both…”
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Optical characterization and modelling of paint top-coatings for low-emittance applications by Wäckelgård, Ewa, Svedung, Harald

“…•Reflectance measurements in the infrared on single aluminium flakes.•Infrared optical model for first-order calculation of optical properties.•Method to…”
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Impacts of different data averaging times on statistical analysis of distributed domestic photovoltaic systems by Widén, Joakim, Wäckelgård, Ewa, Paatero, Jukka, Lund, Peter

“…The trend of increasing application of distributed generation with solar photovoltaics (PV-DG) suggests that a widespread integration in existing low-voltage…”
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Optimization of solar absorbing three-layer coatings by Zhao, Shuxi, Wäckelgård, Ewa

“…The optimization of spectrally selective solar-absorbing three-layer coatings was studied from both theoretical and experimental points of view. The base layer…”
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The optical properties of sputtered composite of Al–AlN by Zhao, Shuxi, Wäckelgård, Ewa

“…Optical constants n and k have been determined for aluminum–aluminum nitride composite in a reactive gas flow from zero to a flow giving stoichiometric…”
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Light scattering materials for energy-related applications: Determination of absorption and scattering coefficients by Wang, Junxin, Nilsson, Annica M., Barrios, David, Vargas, William E., Wäckelgård, Ewa, Niklasson, Gunnar A.

“…To facilitate optical design of energy-efficient materials and devices, a detailed knowledge of their basic optical parameters is necessary. In this paper we…”
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Anti-reflection coatings for solution-chemically derived nickel—alumina solar absorbers by Boström, Tobias K., Wäckelgård, Ewa, Westin, Gunnar

“…In order to suppress reflections from a solar absorber surface an anti-reflection (AR) layer is usually deposited on top of the solar absorbing coating. For…”
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Optical constants of sputtered Ni/NiO solar absorber film—depth-profiled characterization by Zhao, Shuxi, Ribbing, Carl-Gustaf, Wäckelgård, Ewa

“…An optical analysis of a solar absorber with a graded index coating of nickel–nickel oxide deposited in a continuous process for reactive DC magnetron…”
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Optimization of an industrial DC magnetron sputtering process for graded composition solar thermal absorbing layer by Zhao, Shuxi, Avendaño, Esteban, Gelin, Kristina, Lu, Jun, Wäckelgård, Ewa

“…Optimization of an industrial DC magnetron sputtering process for thin graded index coatings for solar thermal absorbers is reported. The optimization…”
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New method to optimize a solar absorber graded film profile by Zhao, Shuxi, Ribbing, Carl-Gustaf, Wäckelgård, Ewa

“…Normalized dc conductivity was used to analyze the inhomogeneously graded depth profile structure of deposits from dc magnetron reactive sputtering in a roll…”
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Characterization of black nickel solar absorber coatings electroplated in a nickel chlorine aqueous solution by Wackelgard, E

“…Black nickel coatings electroplated in a nickel- and sodium chlorine aqueous solution have been prepared and parameters in the process have been optimized to…”
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Development of W-SiO sub(2) and Nb-TiO sub(2) solar absorber coatings for combined heat and power systems at intermediate operation temperatures by Wackelgard, Ewa, Mattsson, Andreas, Bartali, Ruben, Cerosa, Riccardo, Gottardi, Gloria, Gustavsson, Fredrik, Laidani, Nadhira, Micheli, Victor, Primetzhofer, Daniel, Rivolta, Barbara

“…Two new absorber coatings for mid-temperature operation (300-350 [degrees]C) in collectors for solar thermal electricity plants are presented in this study…”
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Surface morphologies of spectrally selective and polarization-dependent angular optical reflectors of SnOx :F-coated anodized aluminum by MWAMBURI, Mghendi, HOEL, Anders, WÄCKELGARD, Ewa

“…In this paper, we present the optical properties of spectrally selective reflector surfaces of pyrolytically deposited fluorine doped tin oxide (SnOx:F) on…”
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