Wood Energy basics
Wood Energy South have developed a guide to wood energy basics. This guide covers types of wood, wood boilers, the price of wood fuels and payback, the main components of biomass heating systems and examples of who else is using wood-fuel in Southland.
Wood boiler installation guide
This guide has been developed by the County Clare Wood Energy Project and provides information on boiler facts, the installation process and a boiler installation case study. It is an informative and relevant document for parties interested in wood energy.
Specifier Practice Paper
This practice paper seeks to provide broad guidance, primarily for Consultants and Specifiers, on evaluating and carrying out wood fuelled industrial and commercial heating system projects. The paper covers hot water and saturated steam plant for a size range typical of small to medium commercial and industrial plant, and common wood fuel types.
The paper considers initial project evaluation to establish business criteria and basic economic viability, system and project design (heat loads, fuel supplies, plant design), and contracting.
Emissions control options
PM emissions control options for wood boilers
This report produced by the Biomass Energy Resource Centre (BERC) provides information on best management practices (BMP) for emissions control equipment. This report is based on wood fuels replacing gas or oil boiler systems but coal boiler systems are not considered in this report. However, the information relating to emissions equipment is very informative and relavant.
Emissions Control for Small Wood-fired Boilers
This report produced by the Biomass Energy Resource Centre (BERC) provides a lot more detail on the effectiveness of emission costs including costing, and best practice in Europe. The report is American based so reports in US$ and imperial units but the information is very informative and relevant.
Wood Fuel Storage and Handling
Fuel Storage and Delivery
This guidance document, produced by Regen SW, outlines the options for storing woodfuels including either logs, pellets or woodchips and the considerations around the best option for your site.
Woodfuel Handling and Distribution
This guidance document, produced by Regen SW, outlines the economic considerations for distributing and handling woodfuels. It is mostly related to the supply chain side of the operations but has some useful information on bunker design and sizing.
Woodfuel Delivery and Storage for Industrial Applications
This document outlines delivery and storage options for larger industrial applications such as district heating plant, hotels or factories. This document also considers how to design for auger maintenance and access due to blockages.
Wood Energy Cartage Options in Southland
The design of the fuel delivery and storage is influenced by the types of truck options available. For an overview of the options available in Southland click on the report below.
Coal conversion and co-firing boilers with woodchiping boilers with woodchip
Wood and Coal Co-firing
Developed by the Bioenergy Association of NZ (BANZ), this paper provides a summary of the findings of a recent BANZ funded study tour of several boiler plants in Europe which have been converted from coal firing to co-firing of coal and wood and to wood firing only. Access the BANZ page here.
EFL co-firing trial at Dunedin Energy Centre
In 2008, Energy for Industry trialed co-firing woodchip in their coal boilers. Results of the trial are outlined in the case study below.
WoodFuel supply contracts
Paying for Woodfuel on Energy Content
Scion Research have developed this useful resource outlining the details required for entering into a contract to pay for woodfuel based on energy content. Wood Energy South believe this is the most suitable contract option and this is explained in the following document.
Fuel Supply Contract Options
There are a number of contract options that are discussed in this document by Regen SW. The advantages and issues of these options are investigated in the following report along with methods for quantifying supply and the important features of a fuel supply contract.
Biomass Ash Utilisation and Disposal Options
Ash is often overlooked when investigating biomass boiler system. But for industrial and large commercial users, the volumes of ash are significant so utilisation and disposal options need to be carefully considered. This document will outline some of the key considerations and options for biomass ash disposal. The majority of this content has been sourced from The Handbook of Biomass Combustion and Cofiring or from our own research in Southland, NZ.