We were employed to carry out the design and installation of a new “wet” biomass heating system to satisfy the full heating demand of 12No. poultry houses for Paul Hobson, to replace the existing direct-fire gas heating system within each poultry house. We initially installed 2 x 99kW Herz Firematic biomass boilers, with associated plantroom equipment and external fuel silos during phase one of the project, which supplied heat to poultry houses 9-12, each boiler providing heat to 2No. poultry houses.
The client was that impressed with the first phase, he employed us to proceed with the next phases of this scheme where we installed 8No. 60kW biomass boilers into poultry houses 1-8, complete with associated plantroom equipment and external fuel silos. From the first phase, the client realised the biomass heating had improved the environment for the birds in poultry houses 9-12 and also reduced the operating costs of the poultry units.
The existing control panels within each of the poultry houses were linked to a 3-Port valve located after the buffer vessel within each of the plant rooms. These existing control panels now control the heat drawn to each of the poultry sheds as and when there is a heat load requirement, with heat distributed within the poultry houses via 50kW fan convector heaters and an internal heating pipework circuit.
Alternative Heat provide a direct link for the client to advise or provide technical assistance to ensure the smooth and efficient running of the boilers and the heating systems. Alternative Heat provide the client with servicing and maintenance as it is critical to supply the sheds with a constant heating demand 24 hours a day.
The buffer vessels within each of the plantrooms are set to heat their associated buffer vessels, ensuring the buffers are constantly charged, enabling the buffer vessel to supply heat to the poultry sheds immediately, once called upon by the BMS within each poultry house. Each of the 10No. biomass boilers were connected into hydraulically separate systems with individual heat meters and heating lines, allowing the client to apply for the Renewable Heat Incentive for each of the separate heating systems. All 10No. installations have since been accredited under the Non-Domestic NIRHI scheme.
For each of the installations we liaised closely with the client as it was critical that the onsite works were carried out to suit the exact cycles of moving fully grown birds out of the sheds and replacing with a new crop of chicks. We made use of offsite fabrication for the pipework for each of the plantrooms, which ensured that site disruption and on-site hot works were kept to a minimum. By liaising closely with the client, and agreeing a programme of works in advance, we were able to ensure that the system installations, operation and commissioning was completed between poultry cycles when the sheds were vacant.
We provide a direct link for the client, to advise or provide technical assistance to ensure the smooth and efficient running of the boilers and the heating systems. We now provide the client with servicing and maintenance as it is critical to supply the sheds with a constant heating demand 24 hours a day.