The CO 2 footprint certified by TÜV Rheinland proves that wood is far su- perior to other construction materials with regard to the climate balance. van Roje sawmill is thus the first in the in- dustry to present a specified Product Carbon Footprint according to ISO standard 14044. The company van Roje places high emphasis on an environmentally friendly and resource efficient production. Their investments of the past years in environment protection and energy efficiency es- pecially demonstrated such commitment. More than 73,500 t of CO 2 are thus avoided every year by a: • pellet plant with a capacity of 45,000 t/p.a. (corresponds to 59,940 t CO 2 equivalents) • biomass heating plant with a performance of 10 MW and a total annual power generation of 50,000 MWh (13,320 t CO 2 -equivalents) • solar power plant with a performance of 600 kW and a total annual power generation of 500,000 MWh (281 t CO 2 -equivalents) From harvesting and transportation of the raw material, to the manufacturing process up to the dispatch of the finished product, all processing steps undergo regular evaluation and optimiza- tion in regard of energy efficiency and impact on the environment. The company proves its responsible treatment of resources with the ac- cording documentation and the certification of its products and processes. For example, the pro- cessed wood is exclusively from sustainable and eco-friendly forests with PEFC and FSC certifica- tion, the power efficiency is documented accor- 1. biomass combined heat and power plant (total output 10 MW) 2. flue gas electrostatic precipitator and flue gas heat recovery The Use of Wood contributes to Climate Protection 1 2 1 compared to power generation with fossil fuels
Transcript
The CO2 footprint certifi ed by TÜV Rheinland proves that wood is far su-perior to other construction materials with regard to the climate balance. van Roje sawmill is thus the fi rst in the in-dustry to present a specifi ed Product Carbon Footprint according to ISO standard 14044.
The company van Roje places high emphasis on an environmentally friendly and resource effi cient production. Their investments of the past years in environment protection and energy effi ciency es-pecially demonstrated such commitment. More than 73,500 t of CO2 are thus avoided every year by a:
• pellet plant with a capacity of 45,000 t/p.a. (corresponds to 59,940 t CO2 equivalents)
• biomass heating plant with a performance of 10 MW and a total annual power generation of 50,000 MWh (13,320 t CO2-equivalents)
• solar power plant with a performance of 600 kW and a total annual power generation of 500,000 MWh (281 t CO2-equivalents)
From harvesting and transportation of the raw material, to the manufacturing process up to the dispatch of the fi nished product, all processing steps undergo regular evaluation and optimiza-tion in regard of energy effi ciency and impact on the environment. The company proves its responsible treatment of resources with the ac-cording documentation and the certifi cation of its products and processes. For example, the pro-cessed wood is exclusively from sustainable and eco-friendly forests with PEFC and FSC certifi ca-tion, the power effi ciency is documented accor-
1. biomass combined heat and power plant (total output 10 MW)2. fl ue gas electrostatic precipitator and fl ue gas heat recovery
ding to a TÜV certified energy management system, and the monitoring, evaluation and approval of the internal production control according to EN 14081-1, is subject to regu-lar verification by the Frauenhofer Institute for Wood Research. In order to expand the documentation by a statement on the product’s impact on the environment, the Product Carbon Foot-print (PCF) balance sheet for sawn wood was drafted.
All greenhouse gas emissions from sawn timber have been identified. Supporting of emissions starts at the point of exploration and delivery of the trunk wood coming from sustainable forests in Rhineland Palatinate, Hesse, North Rhine-Westphalia as well as from adjacent Länder and EU countries. The transport of the raw material is calculated too in compliance with the system. After delivery, the logs are scanned, measured, debarked and cut according to orders. More than half of the quantity is then processed on site. The subsequent wood processing is considered as well and therefore the Product Carbon Footprint applies to all sawn timber from I. van Roje & Sohn. In the production process, the use of thermal and electric power as well
as the fuel consumption for internal trans-portation causes emissions.
The accounting of greenhouse gas emis-sions covers the consumed quantities of wood, water, lubricants, impregnating agents, electricity, process heat and the consumed fuel under the given system. The emissions are only considered at the end of the production process (product ex works), which means neither the emissions from the later use of the lumber nor its disposal are included. Based on the production process, the total emission is broken down into dif-ferent emission stages created by the ma-terials used, the processing and transport routes with consideration of the power and fuel consumption.
In conclusion it should be assumed that the production of 1m³ sawn lumber by I. van Roje & Sohn. KG does not create more CO2-emissions than
36,28kg CO2
revealed by the accounting2
Any CO2 absorbed by the wood itself was not considered within the scope of emission accounting. 1m³ spruce wood sequesters on average 752 kg CO2. 3
I. van Roje & SohnSägewerk und Holzhandlung GmbH & Co. KG
2 for further information and source references visit www.vanroje.de3 1m³ spruce wood exists of 410kg dry matter. Half of that content (205kg) consisting of carbon. A quantity of 752kg of CO2 had been absorbed for that (conversion formula 3.67).
CO2 emissions from production of a girder in a roof structure(in kg CO2)
van Roje coniferous girder C24
steel girder IPE 200
reinforced concrete girder C20/C25
comparison different materials for a single span girder- single span girder for roof structure- span = 6,00 m- load single span girder- line load qd = 5,00 kN/m (design load)+ dead load of this girder- upper framework position: permanent fixing- maximum DIN deflections(Option 2: reinforced concrete girder kept deflection =)
