The Experts below are selected from a list of 96 Experts worldwide ranked by ideXlab platform

Jan Erik Nielsen - One of the best experts on this subject based on the ideXlab platform.

  • IEA-SHC Task 45: Large Solar Heating/Cooling Systems, Seasonal Storage, Heat Pumps
    Energy Procedia, 2012
    Co-Authors: Jan Erik Nielsen
    Abstract:

    Abstract Large Solar thermal systems have proven to be cost effective in several cases - and the combination of a large Solar system with long term storage and also heat pump seem to be very attractive in an efficient modern energy system due to: • flexibility when supplying combined heat and power production in a liberal market for electricity • potential for obtaining very high Solar and renewable fractions of supply. The use of Solar thermal in connection with district Heating is far behind (relatively only one tenth of) the use of Solar thermal in individual houses - even though it is in most cases much cheaper to supply Solar energy centrally to a district Heating network, than to supply Solar energy to individual houses. In Denmark right now “an explosion” in numbers of large scale Solar district Heating systems is seen. Not because of special subsidy schemes - but simply because the systems in many cases are competitive with gas and biomass based district Heating systems. The main overall objective of the IEA-SHC i Task 45 is to assist in a strong and sustainable market development of large Solar Heating and Cooling systems. The task will focus on the “MW-size” systems for district Heating and Cooling applications. The general outcome of the Task will be increased use of cost effective, well designed and well operated large scale Solar thermal systems throughout the world - and a strong network of experts and professionals in the field. Main deliverable will be a “Design Handbook for Large Solar Heating/Cooling Systems”

  • iea shc task 45 large Solar Heating Cooling systems seasonal storage heat pumps
    Energy Procedia, 2012
    Co-Authors: Jan Erik Nielsen
    Abstract:

    Abstract Large Solar thermal systems have proven to be cost effective in several cases - and the combination of a large Solar system with long term storage and also heat pump seem to be very attractive in an efficient modern energy system due to: • flexibility when supplying combined heat and power production in a liberal market for electricity • potential for obtaining very high Solar and renewable fractions of supply. The use of Solar thermal in connection with district Heating is far behind (relatively only one tenth of) the use of Solar thermal in individual houses - even though it is in most cases much cheaper to supply Solar energy centrally to a district Heating network, than to supply Solar energy to individual houses. In Denmark right now “an explosion” in numbers of large scale Solar district Heating systems is seen. Not because of special subsidy schemes - but simply because the systems in many cases are competitive with gas and biomass based district Heating systems. The main overall objective of the IEA-SHC i Task 45 is to assist in a strong and sustainable market development of large Solar Heating and Cooling systems. The task will focus on the “MW-size” systems for district Heating and Cooling applications. The general outcome of the Task will be increased use of cost effective, well designed and well operated large scale Solar thermal systems throughout the world - and a strong network of experts and professionals in the field. Main deliverable will be a “Design Handbook for Large Solar Heating/Cooling Systems”

Franck Lucas - One of the best experts on this subject based on the ideXlab platform.

  • Case study for experimental validation of a new presizing tool for Solar Heating, Cooling and domestic hot water closed systems
    Case Studies in Thermal Engineering, 2017
    Co-Authors: Hamza Semmari, Amandine Ledenn, François Boudéhenn, Jean-philippe Praene, Franck Lucas, Olivier Marc
    Abstract:

    Abstract This paper presents a case study experimental validation of PISTACHE which is a new presizing tool intended for designers and planners. It facilitates pre-design and allows the evaluation of annual performance and the integration potential of Solar Heating, Cooling and domestic hot water closed systems. This new tool has been performed in order to standardize the sizing methodology and the comparison of the SHC&DHW closed systems. The comparison framework used in PISTACHE has been performed using seasonal performance indicators that were issued and gathered from experimental data provided by several operating plants. Thus, PISTACHE is an easy graphical user interface and free downloadable tool. In order to check the reliability of the new developed tool, two configuration modes are investigated in this experimental study: a simple Cooling mode (RAFSOL plant) and a double Cooling and Heating mode (SONNENKRAFT installation). The whole validation process is performed using the GenOpt optimization program to determine the optimum set of internal parameters for PISTACHE tool.

  • Sensitivity analysis of the new sizing tool "pISTACHE" for Solar Heating, Cooling and domestic hot water systems
    Energy Procedia, 2014
    Co-Authors: Hamza Semmari, François Boudéhenn, Jean-philippe Praene, Olivier Marc, Amandine Le Denn, Franck Lucas
    Abstract:

    The present paper studies the sensitivity analysis of the new PISTACHE tool’s prediction performance and its input parameters. This work is a part of the R&D project MeGaPICS (Method towards Guarantee of Solar Cooling and Heating application – funded by the French National Research Agency). In fact, the PISTACHE tool was developed to provide professionals with a practical tool to design and to estimate the performances of different Solar Heating and Cooling systems. After a short description of the PISTACHE tool, its validation is performed followed by a sensitivity analysis which is conducted using the method of Fourier Amplitude Sensitivity Test (FAST). The obtained results will be displayed and discussed at the end of this paper.

  • Sensitivity Analysis of the New Sizing Tool “PISTACHE” for Solar Heating, Cooling and Domestic Hot Water Systems☆
    Energy Procedia, 2014
    Co-Authors: Hamza Semmari, François Boudéhenn, Jean-philippe Praene, Olivier Marc, Amandine Le Denn, Franck Lucas
    Abstract:

    International audienc

Bogdan Burduhos - One of the best experts on this subject based on the ideXlab platform.

  • Solar Heating & Cooling Energy Mixes to Transform Low Energy Buildings in Nearly Zero Energy Buildings
    Energy Procedia, 2014
    Co-Authors: Macedon Moldovan, Ion Visa, Mircea Neagoe, Bogdan Burduhos
    Abstract:

    AbstractNearly Zero Energy Building will be a mandatory status for all new buildings constructed after 31st December 2020 for European member states. This implies that, beside energy efficiency at the level of Low Energy Buildings, systems based on renewable energy sources must be implemented to provide energy savings and environmental benefits for space conditioning and water Heating. Focusing on Solar Heating and Cooling renewable-based systems, the paper presents an analysis aiming at identifying an optimal energy mix to reach the Nearly Zero Energy status for Low Energy Buildings, by evaluating and comparing the economic efficiency at current costs. A case study with experimental validation is done for a new R&D Laboratory building. The analysis is done considering functional and economic issues

  • Solar Heating Cooling energy mixes to transform low energy buildings in nearly zero energy buildings
    Energy Procedia, 2014
    Co-Authors: Macedon Moldovan, Ion Visa, Mircea Neagoe, Bogdan Burduhos
    Abstract:

    Nearly Zero Energy Building will be a mandatory status for all new buildings constructed after 31st December 2020 for European member states. This implies that, beside energy efficiency at the level of Low Energy Buildings, systems based on renewable energy sources must be implemented to provide energy savings and environmental benefits for space conditioning and water Heating. Focusing on Solar Heating and Cooling renewable-based systems, the paper presents an analysis aiming at identifying an optimal energy mix to reach the Nearly Zero Energy status for Low Energy Buildings, by evaluating and comparing the economic efficiency at current costs. A case study with experimental validation is done for a new R&D Laboratory building. The analysis is done considering functional and economic issues.

A Jamil - One of the best experts on this subject based on the ideXlab platform.

  • technical assessment economic viability and investment risk analysis of Solar Heating Cooling systems in residential buildings in morocco
    Solar Energy, 2018
    Co-Authors: T Kousksou, Y Zeraouli, T Ouhal, Saif Eddi Fertahi, Y Agrouaz, El T Rhafiki, A Jamil
    Abstract:

    Abstract This paper focuses on the potential of a Solar installation combining air-conditioning, Heating and Domestic Hot Water (DHW) production processes intended for mass use in building sector in Morocco. The objective is to measure the relevance of the investment in such systems through a technico-economic assessment and a risk analysis based on classic economic choice criteria. Then, a sensitivity study was conducted to analyze the impact of the major characteristics of a Solar plant project (amount of investment, operation cost, Solar sunshine, etc.) on the decision-making in various environments to conclude the technical feasibility and economic viability of these systems under Moroccan conditions. Parametric studies including the Solar collectors’ technology and field area in addition to the storage tank volume were carried out to design the Solar plant and to ensure its optimization in dynamic mode operation. The major finding of this work is that incrementing the collector’s field area to 30 m2 optimizes the thermal efficiency of the Solar plant, and the electric booster consumption is reduced. Furthermore, it would be advantageous to use a number of collectors of 14 (a total surface of 22 m2 to satisfy) the Cooling, Heating and hot water needs over the year since the overall system Solar fraction remain above 55% when the optimum parameters are considered. The results indicated also that Solar Cooling systems in hot climates are an attractive option to increase energy savings and to mitigate CO 2 emissions. In addition, the Solar contribution has increased from 605 kW h to 705 kW h in winter and summer periods, respectively, while the auxiliary consumption has achieved 1450 kW h, 1875 kW h and 2300 kW h for Agadir, Tangier and Ben Guerir, respectively. However, according to the economic assessment, the high Solar plant cost is a main barrier facing their implementation in Morocco. Several recommendations were drawn from the profitability study to identify the sensitive points and to consider avenues for improvement with a view to future industrialization of the combined Solar thermal installation in Morocco.

  • Technical assessment, economic viability and investment risk analysis of Solar Heating/Cooling systems in residential buildings in Morocco
    Solar Energy, 2018
    Co-Authors: T. Bouhal, T Kousksou, Y Zeraouli, Saif Eddi Fertahi, Y Agrouaz, T. El Rhafiki, A Jamil
    Abstract:

    Abstract This paper focuses on the potential of a Solar installation combining air-conditioning, Heating and Domestic Hot Water (DHW) production processes intended for mass use in building sector in Morocco. The objective is to measure the relevance of the investment in such systems through a technico-economic assessment and a risk analysis based on classic economic choice criteria. Then, a sensitivity study was conducted to analyze the impact of the major characteristics of a Solar plant project (amount of investment, operation cost, Solar sunshine, etc.) on the decision-making in various environments to conclude the technical feasibility and economic viability of these systems under Moroccan conditions. Parametric studies including the Solar collectors’ technology and field area in addition to the storage tank volume were carried out to design the Solar plant and to ensure its optimization in dynamic mode operation. The major finding of this work is that incrementing the collector’s field area to 30 m2 optimizes the thermal efficiency of the Solar plant, and the electric booster consumption is reduced. Furthermore, it would be advantageous to use a number of collectors of 14 (a total surface of 22 m2 to satisfy) the Cooling, Heating and hot water needs over the year since the overall system Solar fraction remain above 55% when the optimum parameters are considered. The results indicated also that Solar Cooling systems in hot climates are an attractive option to increase energy savings and to mitigate CO 2 emissions. In addition, the Solar contribution has increased from 605 kW h to 705 kW h in winter and summer periods, respectively, while the auxiliary consumption has achieved 1450 kW h, 1875 kW h and 2300 kW h for Agadir, Tangier and Ben Guerir, respectively. However, according to the economic assessment, the high Solar plant cost is a main barrier facing their implementation in Morocco. Several recommendations were drawn from the profitability study to identify the sensitive points and to consider avenues for improvement with a view to future industrialization of the combined Solar thermal installation in Morocco.

Hamza Semmari - One of the best experts on this subject based on the ideXlab platform.

  • Case study for experimental validation of a new presizing tool for Solar Heating, Cooling and domestic hot water closed systems
    Case Studies in Thermal Engineering, 2017
    Co-Authors: Hamza Semmari, Amandine Ledenn, François Boudéhenn, Jean-philippe Praene, Franck Lucas, Olivier Marc
    Abstract:

    Abstract This paper presents a case study experimental validation of PISTACHE which is a new presizing tool intended for designers and planners. It facilitates pre-design and allows the evaluation of annual performance and the integration potential of Solar Heating, Cooling and domestic hot water closed systems. This new tool has been performed in order to standardize the sizing methodology and the comparison of the SHC&DHW closed systems. The comparison framework used in PISTACHE has been performed using seasonal performance indicators that were issued and gathered from experimental data provided by several operating plants. Thus, PISTACHE is an easy graphical user interface and free downloadable tool. In order to check the reliability of the new developed tool, two configuration modes are investigated in this experimental study: a simple Cooling mode (RAFSOL plant) and a double Cooling and Heating mode (SONNENKRAFT installation). The whole validation process is performed using the GenOpt optimization program to determine the optimum set of internal parameters for PISTACHE tool.

  • Sensitivity analysis of the new sizing tool "pISTACHE" for Solar Heating, Cooling and domestic hot water systems
    Energy Procedia, 2014
    Co-Authors: Hamza Semmari, François Boudéhenn, Jean-philippe Praene, Olivier Marc, Amandine Le Denn, Franck Lucas
    Abstract:

    The present paper studies the sensitivity analysis of the new PISTACHE tool’s prediction performance and its input parameters. This work is a part of the R&D project MeGaPICS (Method towards Guarantee of Solar Cooling and Heating application – funded by the French National Research Agency). In fact, the PISTACHE tool was developed to provide professionals with a practical tool to design and to estimate the performances of different Solar Heating and Cooling systems. After a short description of the PISTACHE tool, its validation is performed followed by a sensitivity analysis which is conducted using the method of Fourier Amplitude Sensitivity Test (FAST). The obtained results will be displayed and discussed at the end of this paper.

  • Sensitivity Analysis of the New Sizing Tool “PISTACHE” for Solar Heating, Cooling and Domestic Hot Water Systems☆
    Energy Procedia, 2014
    Co-Authors: Hamza Semmari, François Boudéhenn, Jean-philippe Praene, Olivier Marc, Amandine Le Denn, Franck Lucas
    Abstract:

    International audienc