Low rate energy use for heating and in industrial energy supply systems—Some technical and economical aspects |
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| Affiliation: | 1. Hochschule Bremen, Department of Mechanical Engineering, Neustadswall 30, D-28 199 Bremen, Germany;2. Faculty of Mechanical Engineering, Chair of Heat Engineering, Szczecin University of Technology, Al. Piastow 19, PL 70 310 Szczecin, Poland;1. Centre for Process Integration, School of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, UK;2. State Key Laboratory of Fine Chemicals, Research and Development Center of Membrane Science and Technology, Dalian University of Technology, Dalian, Liaoning 116024, PR China;1. School of Chemical Engineering, University of Tehran, Tehran, Iran;2. Department of Chemical Engineering, Tarbiat Modares University, Tehran, Iran;3. Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, Canada;1. Institute of Process Control Eng., Department of Automation, Tsinghua University, Beijing 100084, PR China;2. INGAR (CONICET-UTN), Avellaneda 3657, Santa Fe 3000, Argentina;3. ABB AG, Corporate Research Germany, Wallstadter Straße 59, 68526 Ladenburg, Germany;4. Center for Advanced Process Decision-Making, Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA |
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| Abstract: | The subject hereof are two typical examples of waste heat and low-temperature heat use and the objective is to evaluate economic effectiveness taking into account various boundary conditions. The first facility considered is an “earth-coupled” heat pump with direct evaporation used as a component of a heating system. The second is an industrial installation, based on a specific project to use waste heat from the cooling process. Alternatively, four different technical options have been considered, including the use of the compression heat pump, absorption heat pump, heat transformer (absorption) and combined system with a gas motor for driving the heat pump compressor. An original simple methodology for economic analysis evaluating uses of low-temperature heat sources as elements of energy supply systems has been developed using input data taken from actual research or industrial projects. The paper also offers a comparison between such energy supply systems operating under different economic conditions of Germany and Poland. |
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