Latest EST heat-pump field trials show improved performance

Published:  05 September, 2013

The Heat Pump Association (HPA) has welcomed, with some reservations, the findings of the second phase of the heat-pump field trials carried out by the Energy Savings Trust, which shows a significant improvement in performance over the results of Phase 1. Air-source heat pumps saw an improvement of 33%, and there was a 22% improvement for ground-source heat pumps.

The HPA is concerned that the results could be misunderstood to be representative of current practice, even though they include 38 results from Phase 1 that have been subjected to major interventions such as resizing the heat pump or minor intervention such as altering control parameters.

The Phase 2 results include six installations sized and designed to the new Microgeneration Certification Schemes MIS 3005 Issue 3.1 standards.

A consequence, points out the HPA, is that the fuel-cost savings demonstrated are somewhat poorer than would reasonably be expected from current installations because they are based purely on the efficiency of the field-trial results.

The HPA’s view is that improvements made via post-installation interventions will never achieve as good a performance as designing and installing properly in the first place.

Further comments from BEAMA’s marketing director Kelly Butler refer to the combined savings and income that can be achieved in the right circumstances. For air-source heat pumps, they are £1350 a year and for ground-source heat pumps £3000 a year.



comments powered by Disqus

Search

Welcome

Welcome to Modern Building Services Online, the web edition of Modern Building Services (MBS) journal and the UK's most popular Building Services engineering site. Modern Building Services covers the entire Building Services Engineering industry. This site contains archived content from the journal, plus web-specific content.

When you go to our digital edition, you can also access the archive of digital editions.
December 2018: DIGITAL EDITION

ARCHIVE OF DIGITAL EDITIONS

Modern Building services has a group
on Linkedin - join us!

Jobs

  • Senior Building Services Engineer

      Invitations are invited from experienced Building Services Engineers to assist in the development of a new division within an established professional practice. The projects will be predominantly with Defence-related and Government establishments but w......

  • Building Energy Management Systems (BEMS) Engineer

      Consistently rated amongst the world's best universities, Imperial College London is a science-based institution with a reputation for excellence in teaching and research. Imperial has one of the largest and most diverse university estate portfolios in......

  • Engineering Technical Assistant

      Consistently rated amongst the world's best universities, Imperial College London is a science-based institution with a reputation for excellence in teaching and research. Imperial has one of the largest and most diverse university estate portfolios in......

more jobs »

Poll

"Is the Building Services industry lagging behind in the implementation of BIM?"