Effect of operating conditions on performance of domestic heating systems with heat pumps and fuel cell micro-cogeneration

S J G Cooper, G P Hammond, M C McManus, A Ramallo Gonzalez, J G Rogers

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The relative performances of six air source heat pumps (ASHP) and a solid oxide fuel cell micro-combined heat and power (SOFC-mCHP) unit are compared using a modelling approach. The emphasis is in indicating the effect of a wide range of operating conditions and methodologies, rather than detailed analysis of the performance of the units under limited specific circumstances. The effect of control methodologies is the primary focus but other variables such as the climate and the specification of the buildings to which heat is supplied are considered. Several significant findings emerge. Firstly, a reduction in heating demands due to warmer will reduce the impacts of both heating systems. In the case of ASHPs, lower heat demands improve performance. In the case of SOFC-mCHP systems they reduce the need for auxiliary heating. A wide range of performances may be achieved by ASHPs, even supplying heat to the same building; the way in which ASHP units are controlled has the potential to reduce their impacts by more than a third. The greatest savings achieved by the SOFC-mCHP unit occur when it is run continuously at full output, despite the consequent dumping of excess heat. Although the auxiliary heaters used with them inevitably reduce their overall benefit, they are still capable of significant savings. It is currently possible for the units to offset more emissions than they create.
LanguageEnglish
Pages52-60
Number of pages9
JournalEnergy and Buildings
Volume70
DOIs
StatusPublished - Feb 2014

Fingerprint

Fuel cells
Pumps
Heating
Solid oxide fuel cells (SOFC)
Air source heat pumps
Hot Temperature
Specifications

Keywords

  • air source heat pump
  • solid oxide fuel cell
  • micro-combined heat and power
  • domestic heating
  • efficiency
  • performance

Cite this

Effect of operating conditions on performance of domestic heating systems with heat pumps and fuel cell micro-cogeneration. / Cooper, S J G; Hammond, G P; McManus, M C; Ramallo Gonzalez, A; Rogers, J G.

In: Energy and Buildings, Vol. 70, 02.2014, p. 52-60.

Research output: Contribution to journalArticle

@article{12d144cf13564091a5c62d8511912da4,
title = "Effect of operating conditions on performance of domestic heating systems with heat pumps and fuel cell micro-cogeneration",
abstract = "The relative performances of six air source heat pumps (ASHP) and a solid oxide fuel cell micro-combined heat and power (SOFC-mCHP) unit are compared using a modelling approach. The emphasis is in indicating the effect of a wide range of operating conditions and methodologies, rather than detailed analysis of the performance of the units under limited specific circumstances. The effect of control methodologies is the primary focus but other variables such as the climate and the specification of the buildings to which heat is supplied are considered. Several significant findings emerge. Firstly, a reduction in heating demands due to warmer will reduce the impacts of both heating systems. In the case of ASHPs, lower heat demands improve performance. In the case of SOFC-mCHP systems they reduce the need for auxiliary heating. A wide range of performances may be achieved by ASHPs, even supplying heat to the same building; the way in which ASHP units are controlled has the potential to reduce their impacts by more than a third. The greatest savings achieved by the SOFC-mCHP unit occur when it is run continuously at full output, despite the consequent dumping of excess heat. Although the auxiliary heaters used with them inevitably reduce their overall benefit, they are still capable of significant savings. It is currently possible for the units to offset more emissions than they create.",
keywords = "air source heat pump, solid oxide fuel cell, micro-combined heat and power, domestic heating, efficiency, performance",
author = "Cooper, {S J G} and Hammond, {G P} and McManus, {M C} and {Ramallo Gonzalez}, A and Rogers, {J G}",
year = "2014",
month = "2",
doi = "10.1016/j.enbuild.2013.11.077",
language = "English",
volume = "70",
pages = "52--60",
journal = "Energy and Buildings",
issn = "0378-7788",
publisher = "Elsevier",

}

TY - JOUR

T1 - Effect of operating conditions on performance of domestic heating systems with heat pumps and fuel cell micro-cogeneration

AU - Cooper, S J G

AU - Hammond, G P

AU - McManus, M C

AU - Ramallo Gonzalez, A

AU - Rogers, J G

PY - 2014/2

Y1 - 2014/2

N2 - The relative performances of six air source heat pumps (ASHP) and a solid oxide fuel cell micro-combined heat and power (SOFC-mCHP) unit are compared using a modelling approach. The emphasis is in indicating the effect of a wide range of operating conditions and methodologies, rather than detailed analysis of the performance of the units under limited specific circumstances. The effect of control methodologies is the primary focus but other variables such as the climate and the specification of the buildings to which heat is supplied are considered. Several significant findings emerge. Firstly, a reduction in heating demands due to warmer will reduce the impacts of both heating systems. In the case of ASHPs, lower heat demands improve performance. In the case of SOFC-mCHP systems they reduce the need for auxiliary heating. A wide range of performances may be achieved by ASHPs, even supplying heat to the same building; the way in which ASHP units are controlled has the potential to reduce their impacts by more than a third. The greatest savings achieved by the SOFC-mCHP unit occur when it is run continuously at full output, despite the consequent dumping of excess heat. Although the auxiliary heaters used with them inevitably reduce their overall benefit, they are still capable of significant savings. It is currently possible for the units to offset more emissions than they create.

AB - The relative performances of six air source heat pumps (ASHP) and a solid oxide fuel cell micro-combined heat and power (SOFC-mCHP) unit are compared using a modelling approach. The emphasis is in indicating the effect of a wide range of operating conditions and methodologies, rather than detailed analysis of the performance of the units under limited specific circumstances. The effect of control methodologies is the primary focus but other variables such as the climate and the specification of the buildings to which heat is supplied are considered. Several significant findings emerge. Firstly, a reduction in heating demands due to warmer will reduce the impacts of both heating systems. In the case of ASHPs, lower heat demands improve performance. In the case of SOFC-mCHP systems they reduce the need for auxiliary heating. A wide range of performances may be achieved by ASHPs, even supplying heat to the same building; the way in which ASHP units are controlled has the potential to reduce their impacts by more than a third. The greatest savings achieved by the SOFC-mCHP unit occur when it is run continuously at full output, despite the consequent dumping of excess heat. Although the auxiliary heaters used with them inevitably reduce their overall benefit, they are still capable of significant savings. It is currently possible for the units to offset more emissions than they create.

KW - air source heat pump

KW - solid oxide fuel cell

KW - micro-combined heat and power

KW - domestic heating

KW - efficiency

KW - performance

UR - http://www.scopus.com/inward/record.url?scp=84896505525&partnerID=8YFLogxK

UR - http://www.sciencedirect.com/science/article/pii/S0378778813007949

UR - http://dx.doi.org/10.1016/j.enbuild.2013.11.077

U2 - 10.1016/j.enbuild.2013.11.077

DO - 10.1016/j.enbuild.2013.11.077

M3 - Article

VL - 70

SP - 52

EP - 60

JO - Energy and Buildings

T2 - Energy and Buildings

JF - Energy and Buildings

SN - 0378-7788

ER -