The Experts below are selected from a list of 168270 Experts worldwide ranked by ideXlab platform
Christian Holter - One of the best experts on this subject based on the ideXlab platform.
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big solar graz solar district heating in graz 500 000 m2 for 20 solar fraction
Energy Procedia, 2016Co-Authors: Patrick Reiter, Hannes Poier, Christian HolterAbstract:Abstract District heating (DH) became a central technology for providing heat and hot water in the residential and service building sector of the city of Graz over the years. It covers with approximately 1000 GWh/a (in 2013) 39% of the overall heat demand and is planned to be extended extensively in the coming years. Current heat generation for Graz is mainly from waste heat from fossil fired combined heat and power (CHP) plants in and nearby Graz. The operator of these plants announced their closure in 2020 due to low electricity prices in the European market (gas plants) and due to maturity (coal plants). Thus vanished 80% of heat production need to be replaced. Therefore, in 2014 the Graz city senate constituted a project team to find various options for providing heat for DH in Graz and its surrounding communities for 2020/30. One promising Concept is a large scale solar thermal system including seasonal storages and heat pumps. The local energy provider agreed to carry out a feasibility of such a large-scale solar thermal power plant in order to analyze its potential in detail, whereas first results of this study are presented within the present paper. The purpose of the feasibility is to determine the optimum size of the solar system to be best integrated in the future district heating system. The feasibility study includes the investigation of appropriate areas for collectors and storages, the design of a Technical Concept using dynamic simulation, an economical evaluation and the investigation of legal issues. The price to be compared with is the heat production cost from gas boilers. First results show the best feasibility of the system between 150,000 m2 and 650,000 m2, providing 9 to 26% solar fraction of district heat demand. While the study is ongoing first results show a high potential for the large scale solar system being a feasible Concept for the urban district heating of Graz. Further in depth simulations will be done after all relevant parameters have been clarified in detail. Thereby economical optimization and the definition of the final dimensions of the whole system will be done.
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big solar graz solar district heating in graz 500 000 m2 for 20 solar fraction
Energy Procedia, 2016Co-Authors: Patrick Reiter, Hannes Poier, Christian HolterAbstract:Abstract District heating (DH) became a central technology for providing heat and hot water in the residential and service building sector of the city of Graz over the years. It covers with approximately 1000 GWh/a (in 2013) 39% of the overall heat demand and is planned to be extended extensively in the coming years. Current heat generation for Graz is mainly from waste heat from fossil fired combined heat and power (CHP) plants in and nearby Graz. The operator of these plants announced their closure in 2020 due to low electricity prices in the European market (gas plants) and due to maturity (coal plants). Thus vanished 80% of heat production need to be replaced. Therefore, in 2014 the Graz city senate constituted a project team to find various options for providing heat for DH in Graz and its surrounding communities for 2020/30. One promising Concept is a large scale solar thermal system including seasonal storages and heat pumps. The local energy provider agreed to carry out a feasibility of such a large-scale solar thermal power plant in order to analyze its potential in detail, whereas first results of this study are presented within the present paper. The purpose of the feasibility is to determine the optimum size of the solar system to be best integrated in the future district heating system. The feasibility study includes the investigation of appropriate areas for collectors and storages, the design of a Technical Concept using dynamic simulation, an economical evaluation and the investigation of legal issues. The price to be compared with is the heat production cost from gas boilers. First results show the best feasibility of the system between 150,000 m2 and 650,000 m2, providing 9 to 26% solar fraction of district heat demand. While the study is ongoing first results show a high potential for the large scale solar system being a feasible Concept for the urban district heating of Graz. Further in depth simulations will be done after all relevant parameters have been clarified in detail. Thereby economical optimization and the definition of the final dimensions of the whole system will be done.
Patrick Reiter - One of the best experts on this subject based on the ideXlab platform.
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big solar graz solar district heating in graz 500 000 m2 for 20 solar fraction
Energy Procedia, 2016Co-Authors: Patrick Reiter, Hannes Poier, Christian HolterAbstract:Abstract District heating (DH) became a central technology for providing heat and hot water in the residential and service building sector of the city of Graz over the years. It covers with approximately 1000 GWh/a (in 2013) 39% of the overall heat demand and is planned to be extended extensively in the coming years. Current heat generation for Graz is mainly from waste heat from fossil fired combined heat and power (CHP) plants in and nearby Graz. The operator of these plants announced their closure in 2020 due to low electricity prices in the European market (gas plants) and due to maturity (coal plants). Thus vanished 80% of heat production need to be replaced. Therefore, in 2014 the Graz city senate constituted a project team to find various options for providing heat for DH in Graz and its surrounding communities for 2020/30. One promising Concept is a large scale solar thermal system including seasonal storages and heat pumps. The local energy provider agreed to carry out a feasibility of such a large-scale solar thermal power plant in order to analyze its potential in detail, whereas first results of this study are presented within the present paper. The purpose of the feasibility is to determine the optimum size of the solar system to be best integrated in the future district heating system. The feasibility study includes the investigation of appropriate areas for collectors and storages, the design of a Technical Concept using dynamic simulation, an economical evaluation and the investigation of legal issues. The price to be compared with is the heat production cost from gas boilers. First results show the best feasibility of the system between 150,000 m2 and 650,000 m2, providing 9 to 26% solar fraction of district heat demand. While the study is ongoing first results show a high potential for the large scale solar system being a feasible Concept for the urban district heating of Graz. Further in depth simulations will be done after all relevant parameters have been clarified in detail. Thereby economical optimization and the definition of the final dimensions of the whole system will be done.
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big solar graz solar district heating in graz 500 000 m2 for 20 solar fraction
Energy Procedia, 2016Co-Authors: Patrick Reiter, Hannes Poier, Christian HolterAbstract:Abstract District heating (DH) became a central technology for providing heat and hot water in the residential and service building sector of the city of Graz over the years. It covers with approximately 1000 GWh/a (in 2013) 39% of the overall heat demand and is planned to be extended extensively in the coming years. Current heat generation for Graz is mainly from waste heat from fossil fired combined heat and power (CHP) plants in and nearby Graz. The operator of these plants announced their closure in 2020 due to low electricity prices in the European market (gas plants) and due to maturity (coal plants). Thus vanished 80% of heat production need to be replaced. Therefore, in 2014 the Graz city senate constituted a project team to find various options for providing heat for DH in Graz and its surrounding communities for 2020/30. One promising Concept is a large scale solar thermal system including seasonal storages and heat pumps. The local energy provider agreed to carry out a feasibility of such a large-scale solar thermal power plant in order to analyze its potential in detail, whereas first results of this study are presented within the present paper. The purpose of the feasibility is to determine the optimum size of the solar system to be best integrated in the future district heating system. The feasibility study includes the investigation of appropriate areas for collectors and storages, the design of a Technical Concept using dynamic simulation, an economical evaluation and the investigation of legal issues. The price to be compared with is the heat production cost from gas boilers. First results show the best feasibility of the system between 150,000 m2 and 650,000 m2, providing 9 to 26% solar fraction of district heat demand. While the study is ongoing first results show a high potential for the large scale solar system being a feasible Concept for the urban district heating of Graz. Further in depth simulations will be done after all relevant parameters have been clarified in detail. Thereby economical optimization and the definition of the final dimensions of the whole system will be done.
Hannes Poier - One of the best experts on this subject based on the ideXlab platform.
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big solar graz solar district heating in graz 500 000 m2 for 20 solar fraction
Energy Procedia, 2016Co-Authors: Patrick Reiter, Hannes Poier, Christian HolterAbstract:Abstract District heating (DH) became a central technology for providing heat and hot water in the residential and service building sector of the city of Graz over the years. It covers with approximately 1000 GWh/a (in 2013) 39% of the overall heat demand and is planned to be extended extensively in the coming years. Current heat generation for Graz is mainly from waste heat from fossil fired combined heat and power (CHP) plants in and nearby Graz. The operator of these plants announced their closure in 2020 due to low electricity prices in the European market (gas plants) and due to maturity (coal plants). Thus vanished 80% of heat production need to be replaced. Therefore, in 2014 the Graz city senate constituted a project team to find various options for providing heat for DH in Graz and its surrounding communities for 2020/30. One promising Concept is a large scale solar thermal system including seasonal storages and heat pumps. The local energy provider agreed to carry out a feasibility of such a large-scale solar thermal power plant in order to analyze its potential in detail, whereas first results of this study are presented within the present paper. The purpose of the feasibility is to determine the optimum size of the solar system to be best integrated in the future district heating system. The feasibility study includes the investigation of appropriate areas for collectors and storages, the design of a Technical Concept using dynamic simulation, an economical evaluation and the investigation of legal issues. The price to be compared with is the heat production cost from gas boilers. First results show the best feasibility of the system between 150,000 m2 and 650,000 m2, providing 9 to 26% solar fraction of district heat demand. While the study is ongoing first results show a high potential for the large scale solar system being a feasible Concept for the urban district heating of Graz. Further in depth simulations will be done after all relevant parameters have been clarified in detail. Thereby economical optimization and the definition of the final dimensions of the whole system will be done.
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big solar graz solar district heating in graz 500 000 m2 for 20 solar fraction
Energy Procedia, 2016Co-Authors: Patrick Reiter, Hannes Poier, Christian HolterAbstract:Abstract District heating (DH) became a central technology for providing heat and hot water in the residential and service building sector of the city of Graz over the years. It covers with approximately 1000 GWh/a (in 2013) 39% of the overall heat demand and is planned to be extended extensively in the coming years. Current heat generation for Graz is mainly from waste heat from fossil fired combined heat and power (CHP) plants in and nearby Graz. The operator of these plants announced their closure in 2020 due to low electricity prices in the European market (gas plants) and due to maturity (coal plants). Thus vanished 80% of heat production need to be replaced. Therefore, in 2014 the Graz city senate constituted a project team to find various options for providing heat for DH in Graz and its surrounding communities for 2020/30. One promising Concept is a large scale solar thermal system including seasonal storages and heat pumps. The local energy provider agreed to carry out a feasibility of such a large-scale solar thermal power plant in order to analyze its potential in detail, whereas first results of this study are presented within the present paper. The purpose of the feasibility is to determine the optimum size of the solar system to be best integrated in the future district heating system. The feasibility study includes the investigation of appropriate areas for collectors and storages, the design of a Technical Concept using dynamic simulation, an economical evaluation and the investigation of legal issues. The price to be compared with is the heat production cost from gas boilers. First results show the best feasibility of the system between 150,000 m2 and 650,000 m2, providing 9 to 26% solar fraction of district heat demand. While the study is ongoing first results show a high potential for the large scale solar system being a feasible Concept for the urban district heating of Graz. Further in depth simulations will be done after all relevant parameters have been clarified in detail. Thereby economical optimization and the definition of the final dimensions of the whole system will be done.
Andreas Otte - One of the best experts on this subject based on the ideXlab platform.
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electrode free visual prosthesis exoskeleton control using augmented reality glasses in a first proof of Technical Concept study
Scientific Reports, 2020Co-Authors: Simon Sc.) Hazubski, Harald Hoppe, Andreas OtteAbstract:In the field of neuroprosthetics, the current state-of-the-art method involves controlling the prosthesis with electromyography (EMG) or electrooculography/electroencephalography (EOG/EEG). However, these systems are both expensive and time consuming to calibrate, susceptible to interference, and require a lengthy learning phase by the patient. Therefore, it is an open challenge to design more robust systems that are suitable for everyday use and meet the needs of patients. In this paper, we present a new Concept of complete visual control for a prosthesis, an exoskeleton or another end effector using augmented reality (AR) glasses presented for the first time in a proof-of-Concept study. By using AR glasses equipped with a monocular camera, a marker attached to the prosthesis is tracked. Minimal relative movements of the head with respect to the prosthesis are registered by tracking and used for control. Two possible control mechanisms including visual feedback are presented and implemented for both a motorized hand orthosis and a motorized hand prosthesis. Since the grasping process is mainly controlled by vision, the proposed approach appears to be natural and intuitive.
Fabrice Lefevre - One of the best experts on this subject based on the ideXlab platform.
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The Atmospheric Chemistry Suite (ACS) of Three Spectrometers for the ExoMars 2016 Trace Gas Orbiter
Space Science Reviews, 2017Co-Authors: Oleg Korablev, A. V. Shakun, Anna A. Fedorova, Alexander Trokhimovskiy, B. E. Moshkin, Alexey V. Grigoriev, Nikolay I. Ignatiev, Francois Forget, Franck Montmessin, Fabrice LefevreAbstract:The Atmospheric Chemistry Suite (ACS) package is an element of the Russian contribution to the ESA-Roscosmos ExoMars 2016 Trace Gas Orbiter (TGO) mission. ACS consists of three separate infrared spectrometers, sharing common mechanical, electrical, and thermal interfaces. This ensemble of spectrometers has been designed and developed in response to the Trace Gas Orbiter mission objectives that specifically address the requirement of high sensitivity instruments to enable the unambiguous detection of trace gases of potential geophysical or biological interest. For this reason, ACS embarks a set of instruments achieving simultaneously very high accuracy (ppt level), very high resolving power (>10,000) and large spectral coverage (0.7 to 17 μm—the visible to thermal infrared range). The near-infrared (NIR) channel is a versatile spectrometer covering the 0.7–1.6 μm spectral range with a resolving power of ∼20,000. NIR employs the combination of an echelle grating with an AOTF (Acousto-Optical Tunable Filter) as diffraction order selector. This channel will be mainly operated in solar occultation and nadir, and can also perform limb observations. The scientific goals of NIR are the measurements of water vapor, aerosols, and dayside or night side airglows. The mid-infrared (MIR) channel is a cross-dispersion echelle instrument dedicated to solar occultation measurements in the 2.2–4.4 μm range. MIR achieves a resolving power of >50,000. It has been designed to accomplish the most sensitive measurements ever of the trace gases present in the Martian atmosphere. The thermal-infrared channel (TIRVIM) is a 2-inch double pendulum Fourier-transform spectrometer encompassing the spectral range of 1.7–17 μm with apodized resolution varying from 0.2 to 1.3 cm−1. TIRVIM is primarily dedicated to profiling temperature from the surface up to ∼60 km and to monitor aerosol abundance in nadir. TIRVIM also has a limb and solar occultation capability. The Technical Concept of the instrument, its accommodation on the spacecraft, the optical designs as well as some of the calibrations, and the expected performances for its three channels are described.
