Promoter: "Dunarea de Jos" University of Galati - UDJ |
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Contact person from UDJ/ Electrical and Electronical Faculty of Galati : Professor Phd.Ing. Nicolae BADEA |
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Partner 1: "Politehnica" University of Bucharest - UPB-ECEE |
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Contact person UPB/ECEE: "Echipamente de Conversie Electromecanica a Energiei " : Professor Phd.Ing. Ghita Constantin |
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Partner 2: Electrical Research Institute - ICPE S.A. |
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Contact person form ICPE S.A.: Mihaela Chefneux |
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Implementation plan The Project has six activities, as follows:
Project summary Stations that generate power, heating or cooling are called trigeneration stations (Combined Cooling, Heating and Power-CCHP).The use of combined generation of heating and power (cogeneration) is a considerable potential for increasing efficiency and reducing the impact on environment. Promoting cogeneration is a priority objective in the European Union, and one of the ways in which E.U. countries seek to reach the objectives they adhered to by the signature of the Kyoto Protocol. Romania has also signed the Kyoto Protocol on climatic changes. The efficiency used of fuels in simultaneous generation of heating and electricity may avoid energy losses and may result in avoiding CO2 emissions, by comparison with separate production of heating and electricity. The increase in using the combined production will probably be correlated not only to a tendency towards the utilization of clean energetic resources existing locally (such as, for example, natural gas, biomass or biodiesel ) but also with superior valorization during the whole year of production stations. This is why trigeneration is a solution of using fully the system. From a technological perspective, trigeneration (CCHP) is done by connecting the cogeneration unit (CHP) to a plant used for producing cooling, by compression and/or absorbtion, and also for treating the air (demoisturizer). The resulting cooling can be used wherever conditioned air is needed– for public or residential use such as banks, hotels, business centres, hospitals, sport halls etc. Obtaining an index of thermal comfort throughout the year, in residential and public buildings, implies major investments for the thermal heater and a high number of units producing air conditioning. The problem of obtaining a high index of thermal comfort in a residential building becomes critical especially in non-electrified and remote areas. The investments that should be done in this area implies supplementing the acquisitions with a group for producing electricity (electrogen). In Europe, apart from the individual heating stations, in the latest yers are produced cogeneration equipments (CHP) for combined production of heating and electricity. The power of these CHP plants is from few tens of KW up to hundreds of MW. This proposal of trigeneration aims at ensuring the thermal comfort index by a single equipment able to produce electricity, hot water and cooling with a decentralized distribution, versatile (hot water and electricity, hot water and cooling, hot water and heating or any other combination), adjustable to user’s demand according to hourly and area distribution and following the residential building topology. The comfort of such an equipment in a residential building, but with greater dimensions, is equivalent to that of a multizone climatronic car. This general objective will be reached at by: (a) the study of versions for realisation trigeneration systems, with a focus on the use of regenerative fuels (biogas, biodiesel); (b) realization of an autonomous system of generating energy by trigeneration; (c) experimental study of optimal functioning regime with a view to obtain an optimal value of a complex quality criterion (energetic efficiency, quality of electricity provided, thermal comfort, medium impact) ;(d) producing a methodology of technological design of a trigeneration system. Validation of undergoing fundamental research and of developed numerical modelling will pe performed on an experimental model, designed and executed within the project. By testing this model, for each of its components, additional information will be deduced related to the design of autonomous systems with trigeneration. Technical documentations will be drawn for an autonomous system with trigeneration for a residential building with power of up to 10 kWe and thermal power of up to 25KWth. These technical data are necessary to potential beneficiaries who wish to industrially produce such systems. One important problem that will be dealt with is the system feasibility study, as well as the study of impact on the environment. In the end of the project we planned activities of results dissemination and technological transfer, organizing a workshop in the field of our research, editing a handbook with significant results, designing a website for introducing our project results, and publishing scientific papers. The scope of the project Through the partnership concluded between two universities and a research institute are created the conditions for the collaboration implied by the 4th program aims, which is to create the conditions for a better collaboration among various research and development entities. The partners in the project show expertise in: generation of clean electric power in reducing superior harmonics of voltage and current; power quality and electromagnetic compatibility; recovery of thermal energy and diminishing losses; the field of system for measurement, monitoring, command, protection and real time control. The main goal is to develop and acquire technological related to autonomous systems for energy generation/ conversion by trigeneration, a modern and promising technology, according to our knowledge. Given the project complexity, realization of an experimental model and necessity of theoretical fundament our solutions for interfacing solutions and efficient exploitation of subsystems, by setting up process models an interaction models, this project proposal also contributes to the development of theoretical knowledge. Moreover, considering heterogeneous and complex criteria of optimality (energy efficiency, the quality of provided power, degree of thermal comfort, etc) it contributes to increasing the capacity of analysis and abilities of offering viable solutions to complex problems. General objectiveThe general objective refers to the study of a complex equipment with trigeneration, able to generate electricity, hot water, heating or cooling, with a decentralized, versatile distribution (hot water and electricity, hot water and cooling, hot water and heating or any other combination), adjustable to user’s demand according to hourly and area distribution and following the residential building topology. The quality criterion used in choosing the subsystems and their operational regimes is made up of the following components :conversion efficiency, quality of the electricity, thermal comfort, cost, etc. Specific objectives Objective 1: Conceptual analysis of the analysis and implementation issues related to autonomous systems with trigeneration, including measurement, command, protection, and monitoring systems. Objective 2: Determining optimal operational regimes of the subsystems with a view to optimize them by applying a complex quality criterion made up of energetic efficiency, quality of the electricity, thermal comfort degree. Objective 3: Establishing specific mathematical models and of interaction of coupled systems, so as to perform an analysis and a synthesis based on a model. Objective 4: Comparative study of the costs of systems taken separately for generating electric energy, heating, and cooling and separately for the autonomous trigeneration system. Objective 5: Drawing up a methodology for constructive dimensioning of a autonomous trigeneration system, used as experimental model, for the validation of research, practical realization, and its laboratory testing. Objective 6: Drawing up the technical description for the autonomous trigeneration system of low electrical power 10 kWe Objective 7: Managerial objectives: equipment purchasing, drawing up reports, internal validation, management. Objective 8: Technological transfer of research results. Objective 9: Dissemination of results.
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