EPE  Vol.9 No.1 , January 2017
Energy Targeting for a Brewing Process Using Pinch Analysis
Abstract: The rising cost of energy and environmental concerns have led the brewing industry to search for techniques of reducing energy consumption in brewery operations. In this paper, pinch analysis was applied to a typical Ugandan based brewery process to target for the energy requirements of the process. Hint software was used for the analysis. At the chosen ΔTmin of 10, the minimum cooling and heating utility requirements of the brewery studied were determined as being 4862.21 kW and 8294.21 kW respectively, with a pinch temperature at 68. It was observed that using the technique, 1806.59 kW of energy could be recovered through process to process heat exchange which presented an energy saving potential of 21.5%. It is recommended that results from this study could be used in the design or retrofit of a heat exchanger network of a brewery for improved energy efficiency. Considerations can also be made for other values of ΔTmin.
Cite this paper: Tibasiima, N. and Okullo, A. (2017) Energy Targeting for a Brewing Process Using Pinch Analysis. Energy and Power Engineering, 9, 11-21. doi: 10.4236/epe.2017.91002.

[1]   Von Hippel, D., Suzuki, T. and William, J.H. (2011) Energy Security and Sustainability in North East Asia. Energy Policy, 39, 6719-6730.

[2]   Fadare, D.A., et al. (2010) Energy and Exergy Analyses of Malt Drink Production in Nigeria. Energy, 35, 5336-5346.

[3]   Leni, C.E., Daniel, G., de Luna Mark, G., Ferdinard, M. and Nurak, G. (2015) Brewery Heat Exchanger Networks Design and Optimization Based on Pinch Analysis at a Single ΔTmin. Philippine Engineering Journal, 36, 54-75.

[4]   Kalungi, N. (2012) Monitor Publications.

[5]   Linnhoff, B. and Flower, J.R. (1978) Synthesis of Heat Exchanger Networks I: Systematic Generation of Energy Optimal Networks. AIChE Journal, 24, 633-642.

[6]   Umeda, T., Itoh, J. and Shikoro, K. (1978) Heat Exchanger Synthesis. Chemical Engineering Progress, 74, 70-76.

[7]   Holman, J.P. (1988) Thermodynamics. McGraw-Hill, New York.

[8]   Kemp, I.C. (2007) Pinch Analysis and Process Integration—A User Guide on Process Integration for Efficient Use of Energy. Butterworth-Heinemann, Oxford.

[9]   Dumbliauskaite, M., Becker, H. and Maréchal, F. (2010) Utility Optimization in a Brewery Process Based on Energy Integration Methodology. Proceedings of ECOS, 91-98.

[10]   Muller, D. (2007) Web-Based Tools for Energy Management in Large Companies Applied to Food Industry. PhD Dissertation, EPFL-STI, Industrial Energy System Laboratory, Lausanne.

[11]   Muster-Slawitsch, B., Brunner, C., de Lima, D.R. and Schnitzer, H. (2010) The Green Brewery Concept—Energy Efficiency and the Use of Renewable Energy Sources in Breweries. Chemical Engineering Transactions, 21, 649-654.

[12]   Christian, D., Kirsten, U., Christian, B. and Gerhard, S. (2014) Heat Integration in Batch Processes Including Heat Streams with Time Dependent Temperature Progression. Applied Thermal Engineering, No. 70, 321-327.

[13]   Gundersen, T. and Naess, L. (1988) The Synthesis of Cost Optimal Heat Exchanger Networks. Computers and Chemical Engineering, No. 12, 503-530.

[14]   Foo, D.C.Y., Chew, Y.H. and Lee, C.T. (2008) Minimum Units Targeting and Network Evolution for Batch Heat Exchanger Network. Applied Thermal Engineering, No. 28, 2089-2099.

[15]   Atkins, M.J., Walmsey, M.R.W. and Neale, J.R. (2010) The Challenge of Integration Non-Continuous Processes—Milk Powder Plant Case Study. Journal of Cleaner Production, No. 18, 927-934.

[16]   Fernandéz, I., Renedo, C.J., Pérez, S.F., Ortiz, A. and Manana, M. (2012) A Review: Energy Recovery in Batch Processes. Renewable and Sustainable Energy Reviews, No. 16, 2260-2270.

[17]   Kemp, I.C. and Deakin, A.W. (1989) The Cascade Analysis for Energy and Process Integration of Batch Processes, Part 1: Calculation of Energy Targets. Chemical Engineering Research & Design, No. 67, 495-505.

[18]   Golwelker, S. (1994) Energy Integration of Batch Processes: Pinch Technology Approach. M.Tech Thesis, Indian University of Technology, Bombay.

[19]   Kemp, I.C. and Macdonald, E.K. (1988) Energy and Process Integration in Continuous and Batch Processes. Institution of Chemical Engineering Symposium, Series No. 105, 185-200.

[20]   Kunze, W. (2007) Technologie der Brauer und Malzer. Versuchs-und Lehranstalt für Brauerei in Berlin, Berlin.