Waste Heat Recovery

Department for Business, Energy and Industrial Strategy written question – answered on 30th July 2019.

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Photo of David Drew David Drew Shadow Minister (Environment, Food and Rural Affairs)

To ask the Secretary of State for Business, Energy and Industrial Strategy, pursuant to his Answer of 15 July 2019 to Question 274430 and with reference to the Building Research Establishment document quoted, for what reason that methodology of selecting information referred to in para 2.2 and page 5 has been used and what the timetable is for publishing the full review that his Department is commissioning on that methodology.

Photo of Kwasi Kwarteng Kwasi Kwarteng The Minister of State, Department for Business, Energy and Industrial Strategy

This paragraph refers to a method of averaging data over time rather than selecting information. This method has been used by the Buildings Research Establishment where raw test data cannot be used directly in its methodology for assessing Flue Gas Heat Recovery Systems. This is because the raw data would create anomalous fluctuations in the temperature gradient due to measurement uncertainty in the individual readings. This approach will be considered as part of the review.

The Department is in the process of procuring a third-party organisation to carry out the review. Our aim is to have the review completed around the turn of the year. However, this is subject to the detailed requirements identified by the reviewing organisation, such as the extent of laboratory testing required. Manufacturers will be informed of the outcome of the review when it concludes.

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