Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Klaus Vajen"'
Autor:
Bjarne Jürgens, Johannes Zipplies, Christian Sauer, Oleg Kusyy, Janybek Orozaliev, Ulrike Jordan, Klaus Vajen
Publikováno v:
International Journal of Sustainable Energy Planning and Management, Vol 41 (2024)
Currently, the huge potential of data centre waste heat for the decarbonization of the heating sector is often ignored. Here, a feasibility study is presented for covering the heat demand of two districts of Frankfurt (Germany) mainly by data centre
Externí odkaz:
https://doaj.org/article/9b71e28aeedc4bc7b2db22641a823598
Publikováno v:
Solar Energy Advances, Vol 4, Iss , Pp 100071- (2024)
Solar heat for industrial processes (SHIP) is one of the solutions to decarbonise industrial heat demand and reduce CO2-emissions. One of the barriers to the promotion of solar heat, often cited in addition to economic aspects, is the low share that
Externí odkaz:
https://doaj.org/article/f8b986b28b81420ea6fa163fc6073c55
Publikováno v:
Solar Energy Advances, Vol 4, Iss , Pp 100060- (2024)
In this study two different decarbonization strategies for rural heat supply are compared on the example of 180 buildings located in a small village in Germany with about 860 inhabitants and typically mainly old buildings, partly in half-timbered con
Externí odkaz:
https://doaj.org/article/248129c29253424f81560255b1006014
Autor:
Ulrich Trabert, Mateo Jesper, Weena Bergstraesser, Isabelle Best, Oleg Kusyy, Janybek Orozaliev, Klaus Vajen
Publikováno v:
International Journal of Sustainable Energy Planning and Management, Vol 39 (2023)
This is an erratum to the article Techno-economic evaluation of electricity price-driven heat production of a river water heat pump in a German district heating system published by the International Journal of Sustainable Energy Planning and Manageme
Externí odkaz:
https://doaj.org/article/d73117c3b60741b39fbc27020640d3b1
Publikováno v:
Solar Energy Advances, Vol 3, Iss , Pp 100034- (2023)
Solar thermal heating systems and heat pumps are key technologies for decarbonizing low temperature industrial heat demand. Fluctuating solar irradiance, limited heat source capacity or limited availability of renewable electricity often limit the po
Externí odkaz:
https://doaj.org/article/fb0c4d8857ef42d0913e14fa79de0680
Solar fractions of SHIP plants considering the availability of roof area based on OpenStreetMap data
Publikováno v:
Solar Energy Advances, Vol 2, Iss , Pp 100017- (2022)
Solar heat for industrial processes (SHIP) can be a key technology to decarbonize the industrial heat demand world-wide. Several national studies use either a bottom-up or a top-down-approach to assess the potential of solar process heat using estima
Externí odkaz:
https://doaj.org/article/e60ff28f16734eada403fd3d203bdc05
Publikováno v:
Energy Conversion and Management: X, Vol 10, Iss , Pp 100085- (2021)
An accurate method to predict annual heat load profiles is fundamental to many studies, e.g., preliminary design or potential studies on renewable heating systems. This study presents a method to predict annual heat load profiles with a daily resolut
Externí odkaz:
https://doaj.org/article/7130f6acbdec4e31b646a8b5e28e64e6
Autor:
Ulrich Trabert, Mateo Jesper, Weena Bergstraesser, Isabelle Best, Oleg Kusyy, Janybek Orozaliev, Klaus Vajen
Publikováno v:
International Journal of Sustainable Energy Planning and Management, Vol 31 (2021)
Large scale heat pumps (HP) are an important technology that will link district heating (DH) systems to the electricity sector in future smart energy systems. This paper examines the feasibility of the integration of a river water HP at a combined he
Externí odkaz:
https://doaj.org/article/711c9e2cc3d54526808695030f3613da
Publikováno v:
Sustainability; Volume 14; Issue 7; Pages: 4033
The accurate prediction of heat load profiles with a daily resolution is required for a broad range of applications, such as potential studies, design, or predictive operation of heating systems. If the heat demand of a consumer mainly originates fro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0853377c86f09b27caf410fa2674524b
https://doi.org/10.20944/preprints202203.0121.v1
https://doi.org/10.20944/preprints202203.0121.v1
Autor:
P. Carbajo Jiménez, Etienne Wurtz, Klaus Vajen, Y. Louvet, A. Leconte, O. Ouvrier Bonnaz, Gilles Fraisse
Publikováno v:
Solar Energy
Solar Energy, 2018, 174, pp.855-865. ⟨10.1016/j.solener.2018.07.075⟩
Solar Energy, Elsevier, 2018, 174, pp.855-865. ⟨10.1016/j.solener.2018.07.075⟩
Solar Energy, 2018, 174, pp.855-865. ⟨10.1016/j.solener.2018.07.075⟩
Solar Energy, Elsevier, 2018, 174, pp.855-865. ⟨10.1016/j.solener.2018.07.075⟩
This study aims at analyzing the phenomenon of siphon draining occurring in drainback solar thermal systems. Although several experimental studies have been previously carried out, there is a lack of theoretical work in the literature. Since describi