Meta-analysis of European heat pump field trial efficiencies

Gleeson, Colin; Lowe, Robert

doi:10.1016/j.enbuild.2013.07.064

Cited by 44 publications

(38 citation statements)

References 4 publications

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“…The results confirm the recent UK field trial averages for heating system temperatures up to 45 o C [2,3] and also reveal a moderate performance gap with respect to typical values given in manufacturers' technical literature. To achieve the much higher SCoP values of 3 or more (for example, reported in [4] based on field trials in other European countries) will require consistently lower heating system operating temperatures then we are accustomed to using in the UK.…”

Section: Application and Verificationmentioning

confidence: 99%

“…This means that the results presented here refer to the heat pump only. The seasonal performance factor so-defined is sometimes referred to as SPF H2 (further details of the various definitions and performance boundaries for heat pumps can be found, for example, in [4]). The coefficient of performance and seasonal coefficient of performance are defined as follows (Eq.…”

Section: T T Tmentioning

confidence: 99%

“…Gleeson and Lowe conducted a detailed comparison of UK and European field trials for domestic heat pumps which concluded that UK performances are generally inferior to those observed in other European countries [4]. The reasons mentioned for better European performances include minimal use of back-up heating; the use of compensating heating control; higher quality heating systems in terms of components and controls; a low usage of domestic hot water (at higher temperatures) and higher house insulation standards.…”

Section: Introductionmentioning

confidence: 99%

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Parametric modelling of domestic air-source heat pumps

Underwood

Royapoor

Sturm

2017

Energy and Buildings

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A new domestic air-source heat pump model is proposed which can be parameterised either from field data, experimental data or manufacturers' standard rating data. The model differs from the much more prevalent system-side regression models for these types of heat pumps in that it operates on refrigerant-side variables. This makes it more suited to detailed performance analyses of heat pumps in service. Because both field data and manufacturers' data can be used for parameterising the model, it can be used to investigate problems associated with the building performance gap where a heat pump is used. A new type of efficiency-based compressor model is developed which enables compressor performance to be directly compared with alternatives and a model of defrosting is included by introducing a new defrost discounting term. Results tested using data from a field monitoring site and from a laboratory installation show good predictive behaviour by the model especially at low source air temperatures. When the model is fitted using manufacturer's standard rating data, a performance gap is evident when compared with the model fitted to field data but the gap is generally nominal.

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Section: Application and Verificationmentioning

confidence: 99%

Section: T T Tmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Parametric modelling of domestic air-source heat pumps

Underwood

Royapoor

Sturm

2017

Energy and Buildings

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“…The EU standard EN15316-4-2 [58] defines SPF as -the ratio of the total annual energy delivered to the distribution subsystem for space heating and/or domestic hot water to the total annual input of driving energy … plus the total annual input of auxiliary energy.‖ Gleeson and Lowe, in an analysis of available data and metrics [59], identified thirteen different variations in the definition of SPF in several heat pump trials so that it appears the definition in EN15316-4-2 is not sufficiently precise. The complications arise as different numbers of circulation pumps, buffer/storage tanks, and supplementary electric resistance heater can be found in practical heat pump systems-many of which provide both space heating and domestic hot water.…”

Section: Performance Metrics and Benchmarksmentioning

confidence: 99%

National Deployment of Domestic Geothermal Heat Pump Technology: Observations on the UK Experience 1995–2013

Rees

Curtis

2014

Energies

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Uptake of geothermal heat pump technology in the UK and corresponding development of a domestic installation industry has progressed significantly in the last decade. This paper summarizes the growth process and reviews the research that has been specifically concerned with conditions in the UK. We discuss the driving forces behind these developments and some of the supporting policy initiatives that have been implemented. Publically funded national trials were completed to assess the performance and acceptance of the technology and validate design and installation standards. We comment on both the technical and non-technical findings of the trials and the related academic research and their relevance to standards development. A number of technical issues can be identified-some of which may be particular to the UK-and we suggest a number of research and development questions that need to be addressed further. Current national support for the technology relies solely on a tariff mechanism and it is uncertain that this will be effective enough to ensure sufficient growth to meet the national renewable heat target in 2020. A broader package of support that includes mandatory measures applied to future housing development and retrofit may be necessary to ensure long-term plans for national deployment and decarbonization of heat are achieved. Industry needs to demonstrate that efficiency standards can be assured, capital costs reduced in the medium-term and that national training schemes are effective. OPEN ACCESSEnergies 2014, 7 5461

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“…In recent years, many researchers have studied GSHP systems through case studies and simulations. Most of them are concerned with a single or a few individual cases [5][6][7][8][9][10][11], while feasibility investigations of large amount of GSHP systems are not much [12][13][14][15], which is statistically significant.…”

Section: Introductionmentioning

confidence: 86%

Investigation and feasibility study of ground source heat pump for office buildings in China

Lei¹,

Tan²,

Li³

2018

EasyChair Preprints

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The adoption of ground-source heat pump (GSHP) in building sector for space heating/cooling, has increased rapidly during the past several decades around the world, especially in China. Meanwhile, it also exposed a lot of problems such as poor economic and energy efficiency, and even failure to operate properly. The purpose of this paper is to post-assess the application of existing GSHP projects, and to analyze the feasibility of ground-coupled heat pumps(GCHP) applied to office buildings in different climatic zones in China. More than one hundred GSHP cases are investigated through literature surveys and field data collection. Based on the post-evaluation results, a model for assessing the adaptability of GCHP is established. The feasibility evaluation of GCHP applied to office buildings are carried out, and key indicators, such as available capacity, energy savings, and costefficiency, etc. are presented among different climatic zones in China.

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Meta-analysis of European heat pump field trial efficiencies

Cited by 44 publications

References 4 publications

Parametric modelling of domestic air-source heat pumps

Parametric modelling of domestic air-source heat pumps

National Deployment of Domestic Geothermal Heat Pump Technology: Observations on the UK Experience 1995–2013

Investigation and feasibility study of ground source heat pump for office buildings in China

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