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SBEM-CY training sessions |
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Click here to visit MCIT website from which you
can download the official iSBEM-CY Software & Technical and User Manuals |
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SBEM-CY is
a software application developed for the calculation of the Energy Efficiency of
Buildings according to the Energy Performance of Buildings Directive (EPBD)
2002/91/EC of the European Parliament. SBEM-CY complies with the directive and
calculates the primary energy of the building and the CO2 emissions and produces
the EPC certificate. It aims at improving the energy efficiency of buildings
taking into consideration the external climatic conditions, indoor conditions
and many other factors. The application is intended to be used by a wide range
of disciplines including:
Architects
Civil Engineers
Mechanical engineers
Electrical engineers
Energy surveyors
Building energy modellers
Suppliers of energy-related building components |
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Energy Efficiency:
The energy efficiency that is calculated, refers to the amount of primary energy
which is consumed or it is estimated that meets the energy demand associated
with the use of the building including heating, cooling, ventilation,
lightning. It takes into consideration the thermal characteristics of the
building, its orientation, its location in relation to the weather conditions,
the indoor climatic conditions, the HVAC systems, the Hot Water Systems and the
use of Renewable Energy Sources. The calculation process compares the primary
energy of the proposed building with that of a “reference building”, subjected
to a specified “improvement factor”. |
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The Calculation Methodology requires the use of
standard databases or information sources for:
- Environmental conditions and operating/occupation
patterns in each part of each building
- Weather data
- Heating and cooling generator efficiencies
Standard databases are also available for
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Heating and cooling
system efficiencies
Building component parameters
The reason for this is to encourage consistency between repeated evaluations of
the proposals.
The calculation methodology also requires that
specific construction elements in the proposed building are checked for
compliance with minimum performance. It also requires that the output report
adopts a standard format, so that the assessor will not have to interpret the
way different tools present the results.
Other factors are also considered such as:
- Thermal characteristics of the building (shell and
internal partitions, etc.); this may include air tightness
Heating installation and hot water supply, including
their thermal characteristics
Air conditioning installation
Natural and mechanical ventilation
Built-in lighting installation (mainly in
non-residential sector)
Position and orientation of buildings, including
outdoor climate
Passive solar systems and solar protection
Indoor climatic conditions, including the designed
indoor climate
The calculation deals with the influence of the following aspects on energy
performance, where relevant:
- Active solar systems, and other heating and electricity
systems based on renewable energy sources
- Electricity produced by combined heat and power
- District or block heating or cooling systems
- Natural lighting
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Calculation procedure
SBEM takes inputs from the software user and various databases, and, by
calculation, produces a result in terms of the primary energy from the energy
used by the building and its occupants. Some of the inputs are standardised to
allow consistent comparisons for energy rating purposes in new and existing
buildings.
SBEM calculates the energy demands of each space in the building according to
the activity within it. Different activities may have different temperatures,
operating periods, lighting levels, etc. SBEM calculates the heating and cooling
energy demands by carrying out an energy balance based on monthly average
weather conditions. This is combined with information about system efficiencies
in order to determine the energy consumption. The energy used for lighting and
domestic hot water is also calculated.
Once the data has been input using iSBEM, the SBEM calculation engine: |
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- calculates lighting energy requirements on a
standardised basis, which takes into account the glazing area, shading, light
source, and lighting control systems
- establishes the standardised heat and moisture gains in
each activity area, from the database
- calculates the heat energy flows between each activity
area and the outside environment, where they are adjacent to each other, using
CEN standard algorithms
- applies appropriate HVAC system efficiencies to
determine the delivered energy requirements to maintain thermal conditions
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Aggregates the delivered energy by source, and converts it into Primary Energy |
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Energy Performance Certificate The software produces the Energy Performance Certificate
which includes reference values which will allow consumers to compare and assess
the energy efficiency of the building. The certificate is accompanied with a
Recommendations report for the improvement of the energy efficiency. The
buildings are categorized according to their type(residential or
non-residential), their size and their usage. |
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General Information.
The system is bilingual(Greek/English) and allows for the creation of the Energy
Performance Certificated in both Greek and English. SBEM-CY has been developed
to run on Windows platforms (Windows 2000 ,Windows XP and Windows Vista) and it
is not compatible with MAC o/s or Linux. The application has been developed in
C++ and can be compiled in MAC or Linux, but the interface has been developed
in Microsoft Access .
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SBEM-CY
Training Sessions
Infotrend
Innovations offers a 3-day training on SBEM-CY application. The application
provides an analysis of a building's primary energy consumption and CO2
emissions. SBEM calculates monthly energy use of a building given a description
of the building geometry, construction, use and HVAC and lighting equipment.
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Programme :
A three day course, covering:
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The
EPBD Calculation Method, Energy Performance Certificates and SBEM-CY -
background and overview
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SBEM
calculation basics and tour of the iSBEM interface
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Data
collection methods and zoning rules
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Live
demonstration of entering a building design into iSBEM
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Exercise: zoning buildings and collecting geometrical information for iSBEM
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Exercise: iSBEM basics, entering the geometry and building fabric details HVAC
system choices
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Exercise: entering building services details
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Exercise: accessing and understanding the outputs and compliance documents
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Case
studies - zoning and gathering geometrical information
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Case
studies - entering building fabric and geometry
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Case
studies - entering building services provision
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Generating the EPC rating and A-G certificate for domestic and non-domestic
buildings
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Generating and manipulating the recommendations report
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Using the recommendations report to improve the EPC rating
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