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Feasibility study about using a stand-alone wind power driven heat pump for space heating
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.ORCID iD: 0000-0003-0300-0762
2018 (English)In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 228, p. 1486-1498Article in journal (Refereed) Published
Abstract [en]

Reducing energy consumption and increasing the use of renewable energy in the building sector are crucial to the mitigation of climate change. Wind power driven heat pumps have been considered as a sustainable measure to supply heat to the detached houses, especially those that even do not have access to the electricity grid. This work is to investigate the dynamic performance of a heat pump system driven by wind turbine through dynamic simulations. In order to understand the influence on the thermal comfort, which is the primary purpose of space heating, the variation of indoor temperature has been simulated in details. Results show that the wind turbine is not able to provide the electricity required by the heat pump during the heating season due to the intermittent characteristic of wind power. To improve the system performance, the influences of the capacity of wind turbine, the size of battery and the setpoint of indoor temperature were assessed. It is found that increasing the capacity of wind turbines is not necessary to reduce the loss of load probability; while on the contrary, increasing the size of battery can always reduce the loss of load probability. The setpoint temperature clearly affects the loss of load probability. A higher setpoint temperature results in a higher loss of thermal comfort probability. In addition, it is also found that the time interval used in the dynamic simulation has significant influence on the result. In order to have more accurate results, it is of great importance to choose a high resolution time step to capture the dynamic behaviour of the heat supply and its effect on the indoor temperature. 

Place, publisher, year, edition, pages
Elsevier Ltd , 2018. Vol. 228, p. 1486-1498
Keywords [en]
Dynamic performance, Heat pump, Loss of load probability, Space heating, Standalone system, Sweden, Wind power, Climate change, Computer aided software engineering, Electric batteries, Electric load loss, Energy utilization, Heat pump systems, Heating, Probability, Pumps, Thermal comfort, Wind turbines, Feasibility studies, Heat pumps, Reducing energy consumption, Set-point temperatures, Standalone systems, Use of renewable energies, alternative energy, building, electricity, equipment, feasibility study, performance assessment, pump, simulation, temperature effect, wind turbine
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-236633DOI: 10.1016/j.apenergy.2018.06.146ISI: 000453489800029Scopus ID: 2-s2.0-85049757328OAI: oai:DiVA.org:kth-236633DiVA, id: diva2:1262889
Note

 QC 20181113

Available from: 2018-11-13 Created: 2018-11-13 Last updated: 2019-01-07Bibliographically approved

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Campana, Pietro EliaTan, YutingYan, Jerry

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