Feasibility study and analysis of the design concept to identify the main guidelines of the thermic project.
Thermal calculations and analysis at the outset (Pre-project) to identify the best planning solutions for the construction of the enclosure (stratigraphy), the distribution of spaces and the types of systems to be used.
Thermal calculations and definitive analysis on the enclosure (Project) to identify the best solution for HVAC system in terms of comfort, energy savings, environmental impact and cost of realization and conduction.
ENCLOSURE ANALYSIS AND CALCULATION OF THERMAL LOADS
The thermal 3D model, produced by Bcool Engineering, together with the scheduling thermal scenarios and the integration of the thermal characteristics of glass and structures, will allow you to calculate the thermal loads in the SUMMER WINTER system of each conditioned room.
It will therefore determine the thermal loads H24 in the day and under the most critical cooling conditions and the heating loads maximum in steady-state heating, by directing the 3D model and placing it at the destination.
The results of the calculations, performed by Bcool Engineering, will create a precise mapping of the heat load of the entire enclosure and/or any conditioned local and in particular it will be highlighted:
- Indents heat from the package (opaque walls)
- Indents thermal ventilation
- Indents thermal windows
- Internal loads (lights, electronic devices, people, etc)
- Evaluation air renewal quantities and its thermal power (if required)
- Total load envelope in the worst conditions
- Loads of area
DYNAMIC SIMULATION ENCLOSURE-SYSTEM
Bcool Engineering is also able to perform a dynamics thermal analysis of the enclosure and/or enclosure-system.
This analysis carried out with the aid of real climate files, allows the detailed annual evaluation of the behavior of both structures and system.
This allows to perform “IF CASE” analysis to verify the behavior of the system in the case of potential change of the loads, for example:
- Increased intake of people
- System commissioning and full operation
- Opening aft doors/windows
EVALUATION OF THERMAL COMFORT
The evaluation of the thermal comfort, as the degree of well-being perceived by the occupants in the space analyzed, must consider several factors including the thermal characteristics of the elements of the border (the enclosure), the sources of heat and steam inside, the climate outside, the characteristics of the HVAC system etc.
The level of wellbeing depends on complex sensations perceived by the human body and each subject can be more or less sensitive to each of the factors that constitute it.
It follows then that the customer should consider very carefully the achievement of thermal living comfort in his works and must work with designers, which should be able to manage the project in all the factors that affect the ENCLOSURE and the SYSTEM.
Bcool Engineering bases its assessments and planning choices on objective calculation parameters that arise from the relationships between the functioning of the human body and the feeling of thermal comfort, according to UNI EN ISO 7730. This type of evaluation is developed in dynamic way and in case of particularly accurate analysis, a computational fluid dynamics (see par. ANALYSIS CFD) can be applied.
ANALYSIS AND SIMULATION ENCLOSURE OPTIONS
Thanks to the tools used and the technical experience, we are able to perform analyzes and simulations of thermal variations of the enclosure.
The results of this work premise to quantify the possible improvements deriving from planning and architecture choices such as different materials and thicknesses of insulation, types of windows, shading (curtains or drop shadow), improving comfort, etc.
The above will allow the client to assess economically the way forward to optimize the enclosure.
ANALYSIS AND SIMULATION OF DIFFERENT TYPE OF SYSTEM AND/OR PRODUCTS
As earlier stated, the dynamic thermal simulation allows us to evaluate and even to go into detail on the type of system.
This allows then to evaluate possible variants to optimize energy (cost savings for the end user) and/or thermal power installed (savings for producer of the work).
In this perspective can also be analyzed the use of products such as recuperators, free cooling systems, Energy recovery systems, the use of natural ventilation, the use of thermal storage, the management of fresh air, etc.
Bcool Engineering carries out Computational Fluid Dynamics analysis (CFD) to calculate different air properties including temperature, speed, pressure, various parameters of comfort, etc., in order to recreate in an extremely accurate way realistic environmental conditions for each simulation and identify the ideal condition between enclosure and system to ensure the maximum degree of housing thermal comfort.
The proposed CFD analysis permits to solve several planning issues such as:
- What distribution temperature can I expect to find in a specific point of a room exposed to the sun on a clear summer day?
- The arrangement and the amount of inlets provided will be sufficient to generate an adequate air movement?
- The natural ventilation will ensure comfort condition for occupants?
- What effect might produce this sunscreen on the flow of air within the environment?
- Are inside the rooms areas where stagnation of air is possible?
- What configuration in terms of heating/cooling ensures a more efficient cooling of the technical rooms?
- The location, shape and orientation of this nozzle may cause a jet of cold air on a person sitting in this point, worsening the conditions of comfort?
The calculation of the thermal global load, contemporary and localized in every room, as well as the CFD analysis will allow the sizing of the HVAC system in all its parts.
Generating unit, local drives, hydronic and aerolics networks are then sized with details of placement for an optimal energy efficiency and thermal comfort.
Single-line preliminary diagrams, as well as final and executive planning, will be developed depending on the state of progress of the work and the request of the Client.
DESIGN, ANALYSIS AND EVALUATION ON ACOUSTIC SYSTEMS HVAC
Bcool Engineering supports the Client in the planning phase for the acoustic optimization on HVAC systems, both on existing works as well as on developing projects.
Photometric measurements, analysis and evaluation of the data will allow Bcool Engineerign to write up technical reports indicating the technical improvements and the list of the different mitigation options (eg. Types of plenum, silencers, sound insulation of boxes, etc) for specific cases.
Simulation of maximum of the future noise in the environments (based on technical data of noise provided by the manufacturers of the products used) may be made in the planning phase of works.