Substitution of LP gas for biomass briquettes in heat generation in greenhouses in Mexico

carwood briqeutas

Briquetas CarWood has carried out a study focused on the calculation of greenhouse gas emissions generated during heating in greenhouses using fossil fuels and densified biomass fuels. The study was carried out for a greenhouse with an area of ​​5.000 m2, estimating emissions for fossil fuels and biomass from British Government emission factors. 

Savings were calculated for changing fuel from LP gas to densified biomass, as well as the IRR and NPV of the investment required to operate with densified biomass as fuel. Savings consider a certified emission reduction selling item at a hypothetical price. The biomass briquette is produced through a process of recovery of wood chips generated in the sawmill. This process is located in northern Mexico, in the State of Chihuahua. The raw materials used in the sawmill come from sustainably managed forests. The biomass briquette manufactured has an introduction plan to the Mexican market since 2020. This application is currently being presented for the agro-industrial sector in Mexico.

In the industrial and artisanal application, the biomass briquette has been used in the State of Querétaro in the substitution of fuels used in the artisan brick kilns with good results, reducing the amount of fuel compared to wood chips or firewood, on the other hand with positive effects on reducing volatile short-lived pollutants and greenhouse gases. In the state of Querétaro there are around 540 artisan ovens used by the families of the communities.

Another application that is being promoted is in the application of greenhouses as a substitute for LP gas, the latter has increased its price constantly in Mexico during the last decade, thereby reducing GHGs in addition to saving energy costs for finance the same projects. In Mexico there are 17.388 protected agriculture units, according to the 2017 National Agricultural Survey. 

Other applications developed and put into operation for different segments are in fireplaces, fire pits, ovens and open grills, for these applications the impact of substituting wood and charcoal for biomass briquettes in the conservation of forests and reduction of short-lived volatile pollutants.

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