The main goal is to give information for a first design of cooling plants. The main topics are: Heat exchangers, Inverse Rankine Cycle, compressors, controls, Properties of cooling fluids,
Heat Powered Cycles (absorbtion, ejection, adsorbtion), Inverse Air Cycles, Heat pumps and heat transformer, Secondary fluids; Thermal storage, Vortex, thermo-acoustic refrigerators, magnetocaloric refrigerators.
Basic of cryogenics
Texts of lessons are available in electronic format
G. Grazzini, A. Milazzo, Tecnica del freddo, Esculapio editrice, Bologna, 2017
C. Pizzetti, Condizionamento dell'aria e refrigerazione, Masson, Milano, 1975
E. Bettanini, P.F. Brunello, Lezioni di Impianti Tecnici, 2 volumi, Cleup, Padova 1990
AA.VV., Manuale della climatizzazione, Tecniche nuove, Milano, 1992
M. Felli, Lezioni di Fisica Tecnica, Editoriale ESA, Milano 1990
J. M. Gordon, K. Choon Ng, Cool Thermodynamics, Cambridge Int. Science Publishing, Cambridge, UK, 2000
W. F. Stoecker, Industrial Refrigeration Handbook, McGraw-Hill, 1998
CA2: Ability of applying knowledge in the field of thermofluidodynamic and machinery to solve problems of theoretical and applied thermodynamics, fluid dynamics and heat transfer.
CA3: Ability of designing, analyze, plan and manage energy conversion systems and their environmental impact, as well as complex and/or innovative service and process systems.
CA8: Ability of analyzing plants, components and process technologies and methods of engineering and their economic implications
CC6: Principles and problems of heat transfer in machinery and plants in systems and components of energy conversion machinery and plants: modeling techniques and computational simulation. Optimized design, management and control methods for heat transfer networks.
CC9: Generation of cold, electrical systems and electrical machines.
Basic Thermodynamic and Heat Transfer knowledge
Lessons and classroom work
For exames reservation look at : http://sol.unifi.it/prenot/prenot
Schedul of exames
Me 14 giugno
Ma 04 luglio
Ma 18 luglio
Me 06 settembre
Ma 10 ottobre
Ma 14 novembre
Ma 12 dicembre
Type of Assessment
Inverse Rankine cycle and possible improvements. Heat transfer and pressure loss along evaporation and condensation. Different types of compressors for refrigeration. Control of refrigeration systems. Properties and environmental impact of refrigerants. Heat powered cooling cycles. Inverse air cycles: Brayton and humid air. Heat pumps; heat transformer. Applications (domestic refrigeration, air conditioning, industrial refrigeration, etc.). Secondary fluids (brine, ice-slurries). Thermal storage. Unconventional cooling techniques (vortex tube, thermo-acoustic systems, magnetocaloric systems). Schematic of cryogenic and Liquefied Natural Gas plants.