What is bioclimatic upgrading of buildings

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Bioclimatic upgrading of buildings
is the redevelopment of a building with bioclimatic interventions. Namely invasive ways to improve its thermal performance, providing cool in the summer and warmth in winter, utilizing solar energy and other environmental sources such as land, air, and water.

Bioclimatic design is essential in every building so that it can be upgraded. We examine the site of the building in the area where it is located as it interacts with the microclimate of the local environment and influences our decisions on the following principles:

  • Utilization of solar energy.
  • Protection of buildings from the summer sun and removal of accumulated heat naturally outwards.
  • Improvement of the environmental conditions of the interior so that we feel more comfortable.
  • Ensurance and control of the natural lighting of buildings.
  • Improvement of the climate outside and around buildings.

    • What is geothermy

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    Geothermy
    is one of the most important forms of renewable energy. It is the exploitation of the constant temperature of the ground materials that exist at low depth, allowing, with the help of a geothermal heat pump the transfer of heat to and from the ground for the production of heating or cooling.

    Geothermal energy has been used for many years in Western countries through geothermal heat pumps. These systems operate by taking advantage of the constant temperature of the earth in order to pump energy and heat a building or to emit heat and cool a building.

    Systems operating with the use of geothermal heat pumps include three parts:

  • The first one consists of a pipeline network in which water circulates and it is called a closed circuit inverter. In this network, the pipes are laid in ditches, where there is free land available. The pipes can also be placed in many vertical boreholes when the available space is limited or the residence is in a rocky area.
    In addition to the pipeline network, the groundwaters in the area, the water of a lake or even the sea can be used. Then the geothermal heat exchanger is called an open circuit alternator.

  • The second part consists of the heat pump, in which the water reaches the geothermal heat exchanger network at a constant temperature, where it is used to heat the space or to cool it.
    The operation of this system is similar to that of air conditioners, the difference being that air conditioners use the outside air temperature by evaporating the volatile gas that they contain while the geothermal pump uses the water temperature.

  • The third part of the system also consists of a pipeline that runs inside the building to which it provides or from which it receives heat. This network can be under floor, in - wall or it can be a network of heating systems with a built-in fan called the fan coil.

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    Depending on the environment and the needs of the building, the form of the geothermal heat exchanger, which will determine the final installation option, is defined
     

    Forms of the geothermal heat exchanger

    Horizontal System
    orizontia There is a close pipeline circuit at a shallow depth where a water-glycol mixture circulates. At this depth there are no temperature fluctuations because of the surface weather conditions, so the temperature is constant throughout the year.
    Vertical System
    katakoryfhIt is placed at a greater depth when the outside space is not sufficient for a horizontal system. Here plumbing pairs (60-100m) are immersed to block the energy required for the operation of the geothermal heat exchanger.
    Open System
    anoixtiWater is pumped by taking advantage of the groundwater temperature (if any) by returning it to the same aquifer.
    An open system is also applied in the event of the exploitation of lake or sea waters.
     

    The advantages of geothermal energy are:

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    Environment-friendly technology without emissions of gaseous pollutants. Pumping free energy from the subsoil
     
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    What is solar thermal

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    Solar thermal
    is the technique of converting solar energy into thermal energy.

    The use of solar energy for heating water is one of the oldest uses of solar energy.
    In 1908, William Bailey of Carnegie Steel Company (USA) invented a collector with an insulated container and copper spiral tubes inside (the well-known water heater). By the end of the First World War, Bailey had sold 4,000 units. Later, when a Florida businessman bought the patent rights, he sold nearly 60,000 units by 1941. However, the restrictions of copper sales during the Second World War led their purchases to a sharp fall.
    In Greece the spread of solar systems took place in 1974, following the oil crisis of 1973. At that time, there was an increase in the newly established industries, reaching a peak in the 1980-90s.

    The principle of the operation of all solar thermal systems (THS) is simple.Solar radiation is converted into heat that is collected and transported through a liquid fluid. The heat is used either directly or via an alternator and is transferred to its final use.

    Solar radiation is used in a wide range of applications including:

  • heating water,
  • space heating
  • Heat for industrial processes,
  • solar air conditioning,
  • drying products.

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    The main applications of solar panels are:
  • the preparation of hot water for homes, commercial buildings and industry
  • heating water in swimming pools
  • the heating of building areas
  • room air conditioning and cooling for storage of food and other susceptible products
  • the drying of agricultural products
  • water distillation and cooking with solar energy
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    It is a prerequisite for us to reliably install quality solar thermal systems that have been carefully studied and designed to achieve maximum performance. At this point it is important to mention that in any case a combination of systems is needed in order to achieve the highest desired energy saving rate.
     
    The performance of the solar system depends on:
  • local climatic conditions
  • the surface
  • the type of collector
  • thermal load
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    The advantages of solar thermal is:

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    1. Environment-friendly technology without emissions of gaseous pollutants.
    2. Operation all year round
    3. Fuel savings and autonomy
    4. It does not remove the existing heating system, but it also combines them
    5. It is compatible with common radiators and underfloor heating
    6. Ability to use electrical resistance with night-time automation with charge of the night invoice
    7. Ability to enable with mobile
     
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    Fireplaces & Stoves

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    They have been the traditional way of heating since the man discovered the fire. Originally, the fireplace was located in the center of the room and later, in its present form, tangent to the wall. There has been a great development in this field and a wide range of options is now available in the market.

    Biodynamic Fireplaces
  • open fireplace
  • open fireplace with natural hot air circulation
  • open fireplace with heated ai
    • Energy fireplaces
  • they are closed and with an airway system,
  • ventilation fireplaces running on LPG or natural gas, there is no need for chimney placement and they are available with or without glass-window.
    Stoves
  • airtight
  • non-airtight
  • Reverse traction of exhaust gases
  • airtight with catalytic filter
  • wood stoves, they heat one or more rooms, and many models are also available with an oven.

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    Reinforcement of building complex
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