University of Belgrade, Faculty of Mechanical Engineering
HEATING,
VENTILATION AND
AIR-CONDITIONING
Prof. dr Maja Todorović
University of Belgrade, Faculty of Mechanical Engineering
Subject description


THE AIM
Acquiring knowledge and skills in the field of heating and
air-conditionig systems - the concept of indoor
environmental parameters and thermal comfor, climate
characteristics, heat trnasfer through building enevelope,
types of cental heating systems, heating bodies and
system equipment; methods of calculation energy needs
and significant parameters; comfort conditions and design
parameters, central air conditioning systems, energy
sources, final and primary energy, domestic hot water
systems; optimization of HVAC systems and the
application of passive techniques.
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University of Belgrade, Faculty of Mechanical Engineering
Subject description


OUTCOME
Students are acquiring knowledge and skills in the field of
heating, ventilation, air-conditionig systems and domestic
hot water systems; Students are aquanted with methods of
calculation of systems’ capacity and methods of
calculations of annual energy demands which they can
performe in practise. Students can link the basic
knowledge and apply it on buildings energy calculations.
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University of Belgrade, Faculty of Mechanical Engineering
Subject description

THEORETICAL LECTURES

Тhe concept of indoor environmental parameters; thermal comfort;
climate characteristics and inpact to indoor environment;
metheorological parameters. Heat transfer through building envelope,
transsmmision and ventilation heat losses. Central heating systems in
buildings, types of heting fluids and heating bodies, central and local
control of heating output, heat sources, final and primary energy,
devices and equipment in central heating systems, methods of
calculation of annual heating demand. Air-conditioning and ventilation
systems, heat gains and cooling loads, Solar radiation impact, local
and central air-conditioning systems, elements of air handling units.
Systems for domestic hot water preparation, consumption dynamics,
installed capacity, annual energy consumption of DHW systems.
Cooling devices and cooling capacity, energy efficiency ratio, system
losses, annual energy demand for cooling and ventilation. Systems
optimization and passive techniques.
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University of Belgrade, Faculty of Mechanical Engineering
Subject description


EXERCISES
Auditory exercises consist of following parts: Example of
calculation of thermal properties of elements of the building
envelope - the determination of the coefficient of thermal
conductivity, specific transmission and ventilation losses,
calculation of installed capacity for heating and cooling,
design conditions and schadules of use of technical
systems, determination of annual energy needs.
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University of Belgrade, Faculty of Mechanical Engineering
The matrix – theoretical lectures
Theoretical classes
АТ-1
Introduction and thermal comfort
3 classes
indoor environmental parameters;
thermal comfort;
climate characteristics and inpact to indoor environment;
metheorological parameters; Air temperature, humidity, wind and Solar
radiation;
summer and winter design conditions.
АТ-2
Heat transfer through building envelope
3 classes
heat transmision through building elements;
heat bridges;
moisture transfer and condensation;
air infiltration and natural ventilation.
АТ-3
Central heating systems in buildings
3 classes
types of central heating systems, heating fluids;
types of heating bodies, mechanizms of heat transfer;
piping systems, pumps and valves;
central and local control of heatig output;
heating fluid temperature influence to heating output and thermal comfort.
6
University of Belgrade, Faculty of Mechanical Engineering
The matrix – theoretical lectures
Theoretical classes
АТ-4
Central heating systems’ equipment
3 classes
heat sources in central heating systems;
biolers in heating systems;
bioler room and its elements;
expansion vessels;
measurements and commissioning.
АТ-5
Annual heating demands and heat consumption
3 classes
dominant parameters influences heating energy consumption;
measurements to improve existing heating systems;
final and primary energy;
methods for calculating annual heat consumption;
measurements of heat consumption in buildings.
АТ-6
Cooling load and air-conditioning system dynamics
3 classes
heat gains and cooling load;
transparent fasade elements;
Sun radiation protection;
shading coefficients and its influence to cooling load;
internal heat gains.
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University of Belgrade, Faculty of Mechanical Engineering
The matrix – theoretical lectures
Theoretical classes
АТ-7
Air-conditioning and ventilation systems
3 classes
comfort and industrial air-conditioning and ventilation;
local devices for air treatment;
central air-conditioning systems;
air handling unit elements;
central systems with fan-coils.
АТ-8
Systems for domestic hot water (DHW) preparation
3 classes
central systems for DHW preparation;
design conditions and consumption dynamics;
losses in DHW systems;
solar systems for DHW preparation.
АТ-9
Cooling devices and annual cooling demands
3 classes
cooling energy and cooling devices;
energy efficiency ratio;
losses in cooling systems;
annual cooling demand;
annual energy demand for mechanical ventilation.
АТ-10
Systems optimization and passive techniques
3 classes
waste haet recovery; heat exchangers;
adiabatic and indirect adiabatic cooling;
night ventilation technique; passive cooling, automatic control of the system.
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University of Belgrade, Faculty of Mechanical Engineering
The matrix – subject structure
HEATING, VENTILATION AND AIR-CONDITIONING
Lectures
Lecture activities
Week
Theoretical
Classes
weekly
Tests
Excersise
1
AT-1
3
EX-1
2
5
2
АТ-2
3
EX-2
2
5
3
АТ-3
3
EX-3
2
5
4
АТ-4
3
EX-4
2
5
0
CO-1
3
5
T-1
2
5
6
АТ-5
3
EX-5
2
5
7
АТ-6
3
EX-6
2
5
8
АТ-7
3
EX-7
2
5
0
CO-2
3
9
T-2
2
5
10
АТ-8
3
EX-8
2
11
АТ-9
3
EX-9
1
12
АТ-10
3
EX-10
2
5
CO-3
5
5
13
Сума
Other
activities
5
T-3
1
5
14
CO-4
5
5
15
FE
5
5
15
75
30
30
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University of Belgrade, Faculty of Mechanical Engineering
Thank you for your attention
Maja Todorović,
University of Belgrade,
Faculty of Mechanical Engineering,
Kraljice Marije 16, 11120 Belgrade 35, Serbia
mtodorovic@mas.bg.ac.rs
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