Learning objectives
Knowledge and understanding, making judgements, communication skills, learning skills, design skills.
Provide students the ability to evaluate the performance of the components of a conditioning system. Design heating and cooling systems.
Prerequisites
Heat transfer. Building thermophysics.
Course unit content
Heating and cooling plants; air conditioning in buildings.
Full programme
Heating and air conditioning systems in buildings. Thermo-hygrometric well-being.
Heat generation, storage, distribution, control and emission systems. Sizing and design of the system and its components, set point and rated power. Design specifications and Climatic Data. Winter thermal design load. Losses for transmission, thermal bridges. Losses to the ground. Losses for ventilation and recovery. Water and air heating and refrigerating systems.
Boilers, condensing boilers, pumps, expansion vessel, fireplaces. Forced and natural circulation. Heat pumps, COP and GUE. The distribution system, vertical, horizontal, two-pipe, single-tube, collector. Prevalence and head loss. Calculation of mass flow rates and diameters of pipes (water) and channels (air).
Emission system, radiators, fan coils, radiant panels. Characteristic equations and calculation of water temperatures.
The control system, manual, centralized, environmental. Energy need calculations.
All-air heating and cooling systems, components and UTA, heat regenerator. Calculation of air flow rates; mass balance and enthalpy equations. Air transformations in UTAs and psychrometric diagrams.
Bibliography
Teacher's clipboard and papers, available on line for the students.
Teaching methods
Frontal lesson, euristic lesson, case study, role playing.
