When designing and constructing sustainable architecture, one of the most important challenges is the HVAC system .
In sustainable architecture as important is the orientation, isolate well as producing heat / cool efficiently using a renewable energy source .
Biomass boilers , they are particularly suitable for sustainable houses, for the production of heat. These are composed of a burner , just like gas or diesel boilers , which burn only natural products, biomass, and like her sisters, conventional gas or diesel boilers , there are multiple productions.
Ejemplos:
| TIPO CALDERA | COMBUSTIBLE | RENDIMIENTO |
| Caldera | Diesel, GLP (propano, butano, gas natural) | 90 % |
| Caldera condensación | Gas natural, GLP | 106-109 % |
| Caldera biomasa | Pellets, hueso oliva | 75 % |
| Caldera de gasificación de leña | Vigas de leña | 92 % |
Another important feature is the product burn. When we use gas boiler or diesel fuel has a virtually homogeneous properties regardless of where and how we buy it , because its composition is similar , all the diesels have the same calorific value , so does when comparing different sources of natural gas , or butane .
They are derived from a raffinate homogenized properties , including heating value, ie the amount of energy we get in combustion.
| Combustible | PCI (poder calorífico) |
| Gasóleo | 9,98 kWh/l |
| Gas natural | 8,18 kWh/m3 |
| Butano | 12,78 kWh/kg |
| Propano | 12,93 kWh/kg |
| Pellets (promedio) | 5,23 kWh/kg |
And this is where there is a big difference with the combustion of biomass , depending on its composition vary significantly calorific value and therefore performance, and ultimately their economic performance. The pellets are not all the same , since the woods of which are composed neither are , so a pellet produced pine will not have the same calorific another oak wood composite .
An effective way to avoid mistakes is biomass produced from olive stones , first because its shape is different from any pellet is distinguished by the naked eye , second because it has one of the highest specific heats ( heat potential kcal/m3 contained therein ) . Other advantage is that we make sure that it is a sustainable product , it is a product derived : they will not cut down trees or burn them to manufacture olive peles bone .
| PODER CALORÍFICO. | GRANULOMETRÍA | |
| Hueso aceituna | 5,58 kWh/kg | 2mm – 5 mm |
| Cáscara de almendra | 4,07 kWh/kg | 25mm-30mm |
| Pellet | 5,00 kWh/kg | 6mm |
| Serrín | 3,84 kWh/kg | 2mm – 20mm |
| Orujo | 4,54 kWh/kg | 1mm-5mm |
| Astillas | 4,07 kWh/kg | 10mm-50mm |
AKTUA recommends specialist advice , both when buying a biomass boiler as for the choice of fuel.
