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Pellets and installations
wood pellet heating

Swiss Document in German and French by Thomas Nussbaumer, privat-docent, mechanical engineer dipl. ETH Verenum, Langmauerstrasse 109, 8006-CH Zurich.

This document was produced with the support of the Federal Office of Energy SFOE. It is a synthetic and comprehensive document on this new energy.

Summary

1 Why pellets?
2 Potential and Production
3 characteristics of wood pellets
4 energy density and storage volume
5 Delivery Forms
6 Standards
7 energy and ecological balance
8 Application Areas
9 Handling and storage of wood pellets
10 Burning wood pellets
11 types of stoves and boilers
12 costs
13 Summary and Outlook
14 Bibliography
15 Addresses

Introduction

Wood pellet heating systems represent an interesting opportunity to harness the energy of the wood. For low power already, they lend themselves to a very convenient automated service.

Modern facilities have automatic ignition and provide poor combustion emissions through the homogenization of the fuel constant calorific pellet.

The pellets are for example produced from sawdust or
shavings. To power a stove, they are delivered in bags and manually entered into a daily silo. A wood pellet stove apartment can be used as an alternative to a manual loading wood stove and create different optical accents through a visible flame.

The pellet boilers are mechanically loaded against and have a fuel silo able to cover the annual needs of the installation. A wood pellet boiler can therefore replace an oil-fired boiler,
gas boiler or a heat pump. Maintenance is limited to cleaning
and periodic ash disposal. Wood pellet heating systems therefore combine the advantages of wood, a renewable energy resource, to those of a dechauffage automatic installation.

With the increasing performance optimization of the building envelope, areas of very interesting application is open to wood pellet heating systems, as these are suitable for low power and are offered at competitive prices.

Learn More
- Pellet Standards
- Wood and pellet heating Forum

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