THERMAL SCIENCE
International Scientific Journal
THERMODYNAMIC ANALYSIS OF AIR REFRIGERATOR ON EXERGY GRAPH
ABSTRACT
Improving mechanical system efficiency is the goal of many engineers and scientists. Commonly, the solutions to these types of problems are uncovered using thermodynamic analysis and optimization. An innovative method for the thermodynamic analysis of a complex energy-intensive system with an arbitrary structure is described in this paper. The method is based on a novel general equation to calculate the total system exergy efficiency using an exergy flow graph proposed by the authors. Discuss in this paper exergy efficiency and exergy loss models as well this approach allows a user to obtain not only the exergy losses and efficiency of the total system, but also to show the relationship between the exergy efficiency of an individual element and that of the entire system. An example is provided that employs this method to the thermodynamic analysis of an air refrigerator.
KEYWORDS
PAPER SUBMITTED: 2004-12-02
PAPER REVISED: 0000-00-00
PAPER ACCEPTED: 0000-00-00
THERMAL SCIENCE YEAR
2006, VOLUME
10, ISSUE
Issue 1, PAGES [99 - 110]
- Moran, M., Engineering Thermodynamics, Boca Raton, CRC Press, 1998
- Bejan, A., Advanced Engineering Thermodynamics, New York:, John Wiley & Sons Inc., 1997
- Bejan, A., Tsatsaronis, G., and Moran, M., Thermal Design and Optimization, New York, John Wiley & Sons Inc., 1996
- Cornelissen, R., Boerema, C., Exergy Scan, the New Method for Cost Effective Fuel Saving, Proceedings, International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Aspects of Energy and Process Systems, Istanbul, Turkey, 2001, pp. 725-733.
- Falsetta, M., Sciubba, E., Exergy-based Analysis of the Start Up Transient of a Combined Cycle Plant, Proceedings, International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Aspects of Energy and Process Systems, Nancy, France, 1998, pp. 775-787
- Hirs, G., Exergy Loses: A Basis for Energy Taxing, Proceedings, NATO-ASI Workshop on Thermodynamic and optimization of complex energy systems, Constantza, Romania, 1998, pp.195-208
- Sciubba, E., Exergy as a Measure of Environmental Impact, Proceedings, Advances in Energy Studies, Nashville, USA, 1999, pp. 121-125
- Finnveden, G., Ostlund, P. 1997. Exergies of Natural Resources in the Life Cycle Assessment and Other Applications, Energy , 22 (9), pp. 923-932
- Gaggioli, R., Richardson, D., Bowman, A., Paulus, D. , Available Energy: Part 1, Gibbs Revisited, &Extended, Proceedings, Advances in Energy Studies, Nashville, USA, 1999, pp. 232-239
- Wall, G., Conditions and Tools in the Design of Energy Conversion and Management Systems of Sustainable Society, Proceedings, International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Aspects of Energy and Process Systems, Tokyo, Japan, 1999, pp. 125-133
- Graveland, G., Exergy Analysis: An Efficient Tool for Process Optimization and Understanding. Comp. Chem. Eng 22, 1998, pp. 545-552
- Huang, F., Naumovicz, T., Energy as Well as Exergy Evaluation of Overall Performance of Combined Gas-Steam Power Plants, Proceedings, International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Aspects of Energy and Process Systems, Twente, Netherlands, 2000, pp. 435-437.
- Oh, S., Pang, H., Yong, K., Exergy Analysis of a Gas Turbine Cogeneration Systems, Journal of Gas Turbine and Power, 1996, 118 (4), pp. 253-260
- Wu, C., Nikulshin, V., Method of Thermoeconomical Optimization of Energy Intensive Systems with Linear Structure on Graphs. International Journal of Energy Research, 2000, 24, pp. 615-623
- Nikulshin, V., Wu, C., Thermodynamic Analysis of Energy Intensive Systems on Exergy Topological Models. Proceedings, 12th International Simposium on Transport Phenomena, Istanbul, Turkey, 2000, pp. 433-438.
- Nikulshin, V., Wu, C., Thermodynamic Analysis of Energy Intensive Systems on Exergy - Topological Models, Exergy, 2001, Vol. 0, pp.1-10
- Nikulshin, V., Wu, C., Nikulshina, V., Exergy Efficiency Calculation of Energy Intensive Systems by Graphs, Proceedings, International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Aspects of Energy and Process Systems, Istanbul, Turkey, 2001, pp. 107- 114
- Nikulshin, V., Andreev, L., Exergy Efficiency of Complex Systems. Proceedings, International Conference of Ocean Technology and Energy, Imari, Japan, 1999, pp. 162-171
- Nikulshin, V., Wu, C., Method of Thermodynamic Analysis and Optimisation of Energy Intensive Systems on Exergy Flow Graphs, Proceedings, InternationalConference on Power and Energy Systems, Las Vegas, USA, 1999, pp. 489-491
- Andreev, L., Nikulshin, V., Thermodynamic Analysis of Power-Technological Systems on Computer, The Centre of Higher Education and Methods of Ukraine, Kiev, 1992
- Harary, F., Graph Theory, New Deli, Narosa Publishing Housen, 1995