Energy Engineering

The whole course consists of 90 hours of lectures and exercises on the topics listed below, for a total of 9 ECTS, 4 of which are taught by prof. Massimo Corcione, while the remaining 5 are taught by prof. Emanuel Habib. Psychrometrics. Cooling and heating load calculations. All-air systems. Air-and-water systems. Air distribution. Energy recovery. Central cooling and heating. Water distribution. Automatic control strategies.

Basic knowledge of physics, thermal sciences, fluid mechanics, machines

Handouts written by the teacher, in Italian. Supplementary texts for in-depth analyses ASHRAE Handbooks - Fundamentals, HVAC Systems and Equipment, Applications, Refrigeration - Ed. American Society of Heating, Refrigerating and Air-Conditioning Engineers.

Optional

Written test and subsequent oral examination. The written test consists of questions on both theory and applications. The written test will be evaluated taking into account both the learning outcomes and the expressive language skills. The oral test deals with the discussion of the written test and one or two of questions on the main topics. The oral test will be evaluated taking into account both the learning outcomes and the expressive language skills. The final evaluation will take into due account the results of both tests.

Traditional classroom lectures and exercises on the topics listed in the syllabus.

Properties of humid air: psychrometry - Transformations of "humid" air. Thermo-hygrometric properties of walls: Thermal behavior of structures - Radiated walls - Thermal insulating materials - Problems of condensation on the surface and inside the walls. Conditions of environmental well-being: Energy balance of the human body - Parameters of thermal confort - Purity and perceived quality of room air. Determination of thermal loads for the air conditioning of buildings: Design conditions - Calculation of thermal and hygrometric loads - Energy balance of confined environments - Treatments on the supply air - Calculation of heating and cooling power. Types of air conditioning systems: All-air air conditioning systems - "Mixed" air conditioning systems (air/water) with primary air and local units - Water-only systems (heating and/or cooling systems) - Criteria for choosing the various typologies. Design of systems - Sizing of the component equipment: air handling units - air distribution - water and steam distribution. “Traditional” heating and refrigeration systems: boileers - Refrigeration machines - cooling towers - Expansion vessels - Distribution pumps - General system diagrams. Non-traditional systems for the production and use of "hot" and "cold": Heat pumps - Heat recovery systems - Evaporative cooling - "Thermal" and "cooling" energy storage systems - Solar energy systems - Centralized systems "combined" production of electricity and thermo-cooling energy (cogeneration, trigeneration) Automatic control of systems: Criteria, devices, final regulation components - Notes on computerized supervision and control systems - Management programs.

Knowledge of physics, applied physics (applied thermodynamics and heat transfer), fluid mechanics, machines

Notes by teachers.

Optional

The written test consists of theory questions and practical applications. The written test will be evaluated considering both knowledge of the subject and expressive skills. The oral test consists of a discussion of the written test and one or two questions on the main topics of the course. The oral test will be evaluated considering both knowledge of the subject and expressive skills. The final evaluation will consider the outcome of both tests.

ASHRAE Handbooks - Fundamentals, HVAC Systems and Equipment, Applications, Refrigeration - Ed. American Society of Heating, Refrigerating and Air-Conditioning Engineers.

Lessons on the blackboard