As of the 2017.i version, CYPETHERM energy simulation programs that use the EnergyPlus™ analysis motor (CYPETHERM HE Plus, CYPETHERM RECS Plus and CYPETHERM EPlus) incorporate assistants to define the internal savings of spaces and their ventilation flows based on the bibliography and standards published by ASHRAE.
A report has been implemented for the analysis of the results of the energy simulation carried out in the programs of the CYPETHERM group that wok with EnergyPlus (CYPETHERM EPlus, CYPETHERM HE Plus – Spain – and CYPETHERM RECS Plus – Portugal). This report allows users to analyse the evolution of the indoor temperature of the zones with respect to the outdoor temperature. This way, they can evaluate, for example, the temperature in spaces with free fluctuation or check that the systems that have been defined meet the requirement of maintaining the indoor temperature within the defined range. The program also counts the number of hours that the indoor temperature lies outside the comfort limits, and distinguishes between the total number of hours during which this occurs whilst the zone is being occupied. The comfort limits can be defined for air conditioning and for heating.
When defining precincts that are “Not occupied”, the definition of lighting and internal equipment is included. This way, the simulation can be carried out of unoccupied precincts with high interior gain, which may affect the energy performance of the adjacent residential precincts.
In the 2017.e version, CYPE has updated the EnergyPlus™ analysis motor in all the programs which use it: CYPECAD MEP, CYPETHERM HE Plus and CYPETHERM EPlus and the new CYPETHERM RECS Plus. This way, CYPE uses the latest version that is available of the analysis motor of the US Department of Energy (DOE): version 8.6, published on 27th September 2016.
The 2017.e version of CYPETHERM LOADS and CYPEHERM EPlus has improved edge management. As of the 2017.e version, users can choose the code with which edges are to be analysed, so they can be detected as being thermal bridges (ISO 14683, ISO 14683- Italy, HE1 2006, HE1 2013, RT2005/2012 and REH).
This improvement has also been included in CYPETHERM RT2012 (France) and CYPETHERM RTExistant (France).
As of the 2017.b version, CYPETHERM EPlus and CYPETHERM LOADS allow users to import, using an IFC file, the results of the lighting analysis carried out in CYPELUX. This way, the programs can import the calculated installed lighting power in each precinct. Furthermore, users will be able to personalise this data in each precinct (only data in the type of precinct was available in previous versions).
As of the 2017.b version, CYPETHERM EPlus incorporates a surface and interstitial condensation check in accordance with ISO 13788. This check was already available with CYPETHERM HYGRO.
The analysis is carried out automatically for all the construction elements of the thermal envelope if the check option is activated in the general parameters table. This way, the analysis carried out by CYPETHERM HYGO is perfectly integrated in both applications.
Upon checking the model of the building, CYPETHERM EPlus emits a warning if any condensation arises at any construction element, allowing users to view the results for each one and offering them a complete report of the analysis carried out on all the construction elements of the thermal envelope, organised in zones.
To activate this option, users must have the permits to use the Surface and interstitial condensation check in accordance with ISO 13788.
In the 2016.l version, CYPE updates the EnergyPlusTM energy motor in all the programs that use it: CYPECAD MEP, CYPETHERM HE and CYPETHERM EPlus. This way, CYPE now uses the latest available analysis motor of the Department of Energy of the USA (DOE); version 8.5, published on the 31st March 2016.
As of the 2016.k version, users can introduce plane thermal bridges at windows: lintel, blind box, jambs, windowsill and niche.
CYPETHERM HE Plus, CYPETHERM LOADS and CYPETHERM EPlus analyse linear thermal bridges to calculate the corresponding transmittance values, depending on the properties of the adopted construction solutions.
This analysis is carried out taking into account the specifications to be applied depending on the code that has been selected to calculate the thermal transmittance in linear thermal bridges.
BIM models contain the geometric description of the building, whereas technical information has to be introduced using specific programs.
Therefore, to detect linear thermal bridges, the program must carry out a two-stage analysis. During the first stage, ‘Edges’ are imported as purely geometric entities, obtained from the intersection of two different construction elements. The second stage consists of the ‘Linear thermal bridge analysis’ which obtains the linear thermal bridges and their corresponding transmittance values based on the edges, and depending on the properties of the adopted construction solutions and the description of the building from the thermal analysis point of view (zone distribution, space description, etc.).
The specialised tools: CYPETHERM HE Plus, CYPETHERM LOADS, CYPETHERM HVAC and CYPETHERM EPlus, allow users to import geometric models in IFC4 format and export and import information related with the analysis and design of the building services of the building, which is obtained using the tools. This way the BIM model of the project is updated and the Open BIM workflow is closed.
The four CYPETHERM tools allow users to automatically generate a new job by importing a BIM file with geometric information. Furthermore, each tool can import any additional IFC files generated by the remaining specialised CYPETHERM programs which may contain useful information for its design when the job is created or at any time during the design process of the job.
As the work is not carried out exclusively with one IFC file containing geometric information of the project, but with a group of IFC files containing the geometric, analysis and design information of the project, each BIM project must be generated in an individual directory to have all the information in a single place and for programs to only read the corresponding IFC files.
One of the many benefits of the Open BIM workflow can be seen, for example, in CYPETHERM LOADS and CYPETHERM HVAC. From CYPETHERM LOADS all the information of the thermal loads of the precincts can be exported to IFC format, once the project has been analysed. CYPETHERM HVAC requires the information of the thermal loads of the building to design the air conditioning systems. This information can be introduced by users or can be imported from the BIM project, if the data has been exported from CYPETHERM LOADS.
Calculation of the critical surface humidity and interstitial condensation in construction elements based on the hygrothermal behaviour of building materials in accordance with the calculation method of the ISO 13788:2012 code.
Features:
Modelling and energy simulation of buildings with EnergyPlus™, integrated in the OPEN BIM workflow via IFC and gbXML.
Features:
Design of normal and emergency lighting installations, as well as their evaluation in accordance with current national and international standards.
Features:
