Wood energy

Showing 31-40 of 67 matches
  • Otago Polytechnic wood boiler options
    Research and reports
    15 July 2010

    The Otago Polytechnic (OP) in partnership with City Forest Ltd (CFL) and Dunedin City Council (DCC) received funding from EECA's Wood Energy Grant Scheme to investigate the opportunity of creating a locally owned and sourced wood fuel market.

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  • DB Breweries wood energy feasibility study
    Research and reports
    20 July 2009

    This study assesses the suitability of various-sized wood-fired boilers for providing some or all of the Brewery's process steam needs.

    It also assesses the possibility of using an absorption chiller to provide some or all of the sites cooling requirements using wood energy. Three boiler scenarios are considered. The two most attractive scenarios are described in detail, both delivering an IRR of 7 - 8%.

     

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  • Woodbourne Airbase wood energy feasibility study
    Research and reports
    21 July 2009

    An opportunity has arisen for the NZDF/RNZAF to improve the economics surrounding the operation of the Woodbourne Air Base heating system.

    This two-part report evaluates the opportunity to convert or replace coal fired boilers to woody biomass. Part one of the report refers to the feasibility of the conversion of the current coal fired boilers, and part two discusses the feasibility of a new boiler or boilers to replace the current two coal fired boilers.

     

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  • Burnham wood energy feasibility study
    Research and reports
    15 July 2010

    An opportunity has arisen for the New Zealand Defence Force to improve the economics surrounding the operation of the Burnham site heating system.

    This report evaluates the opportunity to convert or replace coal fired boilers to woody biomass and offers technical recommendations. Options are considered for plant replacement, plant conversion, or use of woody biomass as a duel fuel source.

     

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  • Waiouru Army base wood energy feasibility study
    Research and reports
    20 July 2009

    An opportunity has arisen for the New Zealand Defence Force to improve the economics surrounding the operation of the Waiouru site heating system.


    This report evaluates the opportunity to convert or replace coal fired boilers to woody biomass and offers technical recommendations. Options are considered for plant replacement, plant conversion, or use of woody biomass as a duel fuel source.

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  • Clean Energy Centre forest residue utilisation trial
    Research and reports
    19 June 2009

    On behalf of the Greater Wellington Regional Council (GWRC) the New Zealand Clean Energy Centre (NZCEC) has investigated the harvesting residues available in GWRC forests for use as a commercial energy product. NZCEC has carried out studies to investigate volumes of residue available, a viable extraction method, and added value drying techniques across three seasons for the residues.

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  • Convertech system technical description
    Research and reports
    8 June 2009

    Convertech, a New Zealand based group of engineers and scientists with an international advisory team, have developed a biomass technology which removes previous barriers and adds a new focus to converting plants to energy.

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  • Wood processing residues
    Research and reports
    20 July 2010

    Where wood processing residues are insufficient to meet the fuel demand for a biomass fuelled boiler then alternative fuel supplies need to be considered. One fuel to consider is forest residues at landings and skid sites within the forests. Providing factors affecting supply are appropriately evaluated then these forest residues can be a cost effective fuel.

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  • Cashmere High School case study
    Case studies
    20 June 2009

    In May 2008 Cashmere High School switched from coal to renewable wood energy to heat its site.
    The new boilers produce around five times less particulate emissions than a typical school coal boiler. Carbon emissions have reduced by 216 tonnes per year. The wood-fired system is also 14% more efficient.
    "There used to be soot and ash in the gutters. Now we just have clean, clean emissions," says Cashmere High support services manager Roger O'Regan.

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  • Titoko Healing Centre Case study
    Case studies
    20 June 2009

    A 50kW wood pellet-fired boiler is proving considerably cheaper than electricity for heating the Bay of Plenty‘s 30 bed Titoki Healing Centre.
    Fully automated and fed by a 3-tonne hopper topped up by the truckload, the system operates virtually hands-free.
    Installation cost around $80,000. That compared more than favourably to the other main option, heat pumps, at around $90,000. Running costs are even more competitive at about $4,400 annually, almost a third of the costs estimated for running heat pumps.

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