The importance of the HVAC
For the operation of a energy and cost efficient building

  • Our pure software solution was developed to reduce the energy consumption and CO2 emissions of HVAC by up to 40%.
  • Building a system, or remodelling an old one to turn it into a green or sustainable building is a matter of unifying a series of guidelines in order to generate energy savings and reduce pollutant emissions.
Dabbel IA building Automation


A building cannot be conceived if it cannot create a healthy environment for its occupants to carry out the activities for which each space was designed for.

The air conditioning (AC), heating (H) and ventilation (V) systems play a fundamental role, therefore designers of HV, A, and C systems take special care in their designs and in compliance with the different standards, both national and international.

Our technology self-operates the HVAC systems making them more energy and cost-efficient by reducing up to 40% of the energy consumption and CO2 emissions.

Improving HVAC systems to achieve a sustainable building

To improve the performance of HVAC systems, engineers can make use of the following elements:

  • Energy recuperators.
  • Heat pipe recuperators.
  • Directly coupled fans to eliminate bearing losses and reduce maintenance costs.
  • High-efficiency motors.
  • Variable speed drives for adequate air volume control.
  • Multiple fans for redundancy, to achieve a reduction in energy consumption, and to obtain improved methods for noise control.

Today’s HVAC systems are designed for efficiency at the time of construction. Therefore, it is essential to teach users good practices in their use and to choose the equipment that will form the air conditioning and ventilation network of the premises, taking into account the future sustainability of the building.

The points that have to be taking into account when managing the HVAC system for the construction or improvement of a building are:

  • Optimized performance. High-efficiency motors, variable speed drives, high tightness.
  • Operation with ecological refrigerant. Zero impact on the ozone layer, CFC free.
  • Outdoor Air Quality Monitoring. Quality assessment.
  • Ventilation. Energy economizers and recuperators.
  • Filtration. Suitable filters.
  • Design. Performance and comfort.

The importance of HVAC for green buildings

One of the most significant energy consumption points in the building is the HVCA system. Whether it is heating or cooling, consumption is usually very high in all circumstances. For this reason, the use of high-performance heat or cold generation equipment, within adequate and correctly dimensioned facilities, will save a lot of energy.

Calculation of Loads

For a correct design of the system, it is essential to proceed with a precise and proper calculation of thermal loads. If the installation is undersized, it will not fulfil its conditioning function. Still, if it is oversized, the installation and energy operating costs will significantly increase and its performance worsens. The use of simulators will allow us to obtain an exact estimation of loads and to interact with the design of the building and the installation.

Choice of system

Before proceeding to the choice of the system, it is necessary to analyze the location and operation of the building. This will make it possible to discard less suitable systems or select suitable ones.
  • Analysis of the location of the building.
  • Analysis of the use of the building.
  • Analysis of the operation of the building.
  • Analysis of the needs of the building.
  • Good energy sources.
Dabbel IA building Automation
Dabbel IA building Automation

Adequate energy sources

Electric energy, despite the comfort of use, must be discarded for heating, since its low total efficiency, between 25 and 30%, only makes it suitable for use in engines that require the chillers or air conditioners, for which there are few logical alternatives. The other alternative application of electricity is in thermodynamic heat generators, such as heat pumps. Solids, specifically coals, must also be discarded due to the high pollution they generate. They are generally substances that do not burn completely, producing volatile pollutants, and that make a large number of sulfates, which ends up becoming acid rain. The liquids are reduced to heating oil, which is less polluting, so it becomes more suitable, although it has the problem of storage. Finally the gaseous, of which the most common is natural gas. It is partly less polluting than diesel C (it generates less carbon monoxide) but it also produces nitrogen oxides.
  • Electricity for chillers and air conditioners.
  • Electricity in heat pumps.
  • Diesel C.
  • Natural gas.