Výsledky vyhledávání - "Björn Karlsson"

Akademický článek

Defining an Annual Energy Output Ratio between Solar Thermal Collectors and Photovoltaic Modules

Autor: João Gomes, Diogo Cabral, Björn Karlsson

Publikováno v: Energies, Vol 15, Iss 15, p 5577 (2022)

Photovoltaics (PV) and Solar Thermal (ST) collectors are sometimes competitors, as investment capacity, energy demand, and roof space are limited. Therefore, a ratio that quantifies the difference in annual energy output between ST and PV for differe

Externí odkaz: https://doaj.org/article/02e294cd7cd54803b22edb7e3de249d9

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Akademický článek

Retrofitting Domestic Hot Water Heaters for Solar Water Heating Systems in Single-Family Houses in a Cold Climate: A Theoretical Analysis

Autor: Björn Karlsson, Henrik Davidsson, Luis R. Bernardo

Publikováno v: Energies, Vol 5, Iss 10, Pp 4110-4131 (2012)

One of the biggest obstacles to economic profitability of solar water heating systems is the investment cost. Retrofitting existing domestic hot water heaters when a new solar hot water system is installed can reduce both the installation and materia

Externí odkaz: https://doaj.org/article/160577ab9a784d25b139ca3ba167ef8b

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Akademický článek

Rev-Changes in Primary Energy Use and CO2 Emissions—An Impact Assessment for a Building with Focus on the Swedish Proposal for Nearly Zero Energy Buildings

Autor: Mattias Gustafsson, Richard Thygesen, Björn Karlsson, Louise Ödlund

Publikováno v: Energies, Vol 10, Iss 7, p 978 (2017)

In the European Union’s Energy Performance of Buildings Directive, the energy efficiency goal for buildings is set in terms of primary energy use. In the proposal from the National Board of Housing, Building, and Planning, for nearly zero energy bu

Externí odkaz: https://doaj.org/article/737e6ede0d23458b9b925fea6fab3deb

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TOWARD DIGITAL SPATIALITY

Autor: Björn Karlsson, Kristina Neumüller, Elin Pihl

Publikováno v: Digital Spatial Infrastructures and Worldviews in Pre-Modern Societies ISBN: 9781802700794

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::771cd9c00f1c46c383c66d8cb18da16c
https://doi.org/10.2307/jj.2430371.9

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Thermal modelling and experimental evaluation of a novel concentrating photovoltaic thermal collector (CPVT) with parabolic concentrator

Autor: Joao Gomes, Hossein Afzali Gorouh, Björn Karlsson, Pouriya Nasseriyan, Mazyar Salmanzadeh, Diogo Cabral, Abolfazl Hayati

Publikováno v: Renewable Energy. 181:535-553

In the present study, a zero-dimensional thermal model has been developed to analyze a novel low concentration photovoltaic-thermal (CPVT) collector. The model has been developed by driving heat transfer and energy balance equations for each part of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68d22d7a54c3a8c97eaaa37f9edf1d5e
https://doi.org/10.1016/j.renene.2021.09.042

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