Search    Print

Progettazione di Impianti di Climatizzazione
Air-conditioning system design
Paolo Principi

Seat Ingegneria
A.A. 2015/2016
Credits 9
Hours 72
Period I
Language ENG

Prerequisites
Heat and mass transfer, thermodynamics

Learning outcomes
The aims of the course are to provide the student with advanced knowledge on air conditioning plants and to refine the student's ability in design procedures and in the graphic representation of the components of a project.

Program
Design and contract. Thermophysical characteristics of the building envelope. Environmental conditions of the project. Calculation of the winter heat loss. Estimation of heat loads in summer. Energy-saving patics. Elements of psychrometers: psychrometric variables, psychrometric charts, transformations termodibnamiche moist air. Comfort termoigrometico: energy balance of the human body, thermal power scattered by the human body, environmental variables influencing the comfort, method of measurement of variables. The noise emitted by plants. Types of plants. Hydronic networks: open and closed loop, types of distribution pipes, pipe thermal insulation, fixings, sizing of the lines and equipment related to them. Circulation pumps. Systems of regulation and supervision. Safety systems: open and closed expansion vessels, safety valves sizing. Terminal units: fan coil unit, radiant heaters. Air handling units : supply fans, humidifiers, chilled water and direct expansion coils, heating coils, filters, motor and drives, air to air heat recovery. Air duct design: ducts: sheet metal, insulated, textile, flexible thermal insulation of the channel, special parts, dampers, attenuators acusrtici, fire dampers. The diffusion of air. The air handling units, components, heat recovery, thermal stations: characteristics of the plant room, boilers, burners, chimneys, distribution manifolds, propulsion systems. Chiller and cold storage, cooling towers. Heat pumps.Patterns of plant. Selection criteria for air conditioning systems. Main techniques for the thermal and hydraulic performance and design pratics. Hot water production by solar collector plant. Design of air conditioning systems for industrial and service sectors

Development of the examination
LEARNING EVALUATION METHODS
: During the oral exam the student must demonstrate knowledge of the topics of heating, ventilating and air conditioning systems. The exam questions will cover the various thematic areas discussed in class by the teacher.

LEARNING EVALUATION CRITERIA
During the examination of the project, student must demonstrate that they have executed it in accordance with current standards and laws , to have properly sized components and graphically returned the air conditioning system of plans and cross section drawing. With the answers to the questions, students must demonstrate that she/he have mastered the issues of the entire teaching program.

LEARNING MEASUREMENT CRITERIA
The course final grade is expressed in thirtieth with a threshold of 18/30. Students showing thorough preparation and insightful analysis will be awarded the highest grade with honors (30 cum laude).

FINAL MARK ALLOCATION CRITERIA
The final grade is computed by adding the evaluation of the answers to the questions posed during the oral exam and the quality of project of HVAC. Honors (30 cum laude) will awarded to the students who demonstrates to have fully mastered the subject and shows the ability to apply the acquired knowledge in different items of course.

Courses

• Ingegneria Meccanica (Corso di Laurea Magistrale (DM 270/04))