Apr 24, 2017 Last Updated 12:59 PM, Apr 20, 2017

Top marks for new heating system

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City of Bristol College, one of the UK’s largest further and higher education colleges, recently selected Remeha to provide an improved and more efficient heating solution for its College Green Centre, which covers approximately 150,000ft² and caters for more than 1500 students.

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The new heating solution involved the installation of four Remeha P420 12 Section boilers located in the east and west plant rooms on the roof of the building, each powered by Baltur TBG 85pn fully modulating gas burners producing a total output capability of 2900kw. The burners were supplied by EOGB based in St Neots, Cambridgeshire.

By replacing the old two-stage burners with fully-modulating EOGB/Baltur burners, the college now benefits from efficiency gains of more than 30%, leading to significant energy savings and CO2 and NOx reductions. At the same time, the units have superior reliability and lower maintenance costs.

Martin Cooke, Technical Manager at EOGB, said: “The burner-boiler match in this heating system is very effective and enables the burners to operate at a 4:1 turndown ratio which significantly improves efficiency when compared to the old installation. The Baltur PN range of air to gas ratio burners are well established and provide optimum combustion and performance which will heat the City of Bristol College in a more efficient manner for many years to come.”

Ean Robertson, Building Services Engineer at the City of Bristol College, said: “The new heating system will be extremely beneficial for the college in both lowering our heating costs and our carbon footprint. With 30,000 students across the campus, reducing our impact on the environment is a key priority and this high-efficiency heating system is a further step in improving our sustainability.”

The EOGB/Baltur fully modulating gas burner range is available with outputs from 50kw to 10,850kw. The burners have low CO and NOx emissions and are easy to install which enables a trouble-free commissioning which is fully supported by EOGB engineers.

Fact File

Turndown ratio

Turndown ratio refers to the amount a burner can increase and decrease its power across its range. For example, if a burner is 500 KW and has a turndown ratio of 5:1 it can operate from 100KW on low fire and 500KW on high fire. When selecting a modulating burner the turndown ratio is extremely important. In order to achieve the benefits of the full working range of the burner, the operating range is carefully matched to the boiler output. A good modulating gas burner has a turndown ratio of 4:1 or 5:1 which offers excellent responsive and reactive control over heat demand.

Contact

www.eogb.co.uk

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