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Study of optimal sizing for residential sorption heat pump system
SaltX Technology, Hägersten, Stockholm, Sweden; Dalarna University, Borlänge, Sweden.
Oak Ridge National Laboratory, Oak Ridge, TN, United States.
Oak Ridge National Laboratory, Oak Ridge, TN, United States.
Oak Ridge National Laboratory, Oak Ridge, TN, United States; Purdue University, West Lafayette, IN, United States.
2019 (English)In: Applied Thermal Engineering, ISSN 1359-4311, E-ISSN 1873-5606, Vol. 150, p. 421-432Article in journal (Refereed) Published
Abstract [en]

Gas-driven sorption heat pumps (GDSHP) show significant potential to reduce primary energy use, associated emissions and energy costs for space heating and domestic hot water production in residential applications. This study considered a bivalent heating system consisting of a sorption heat pump and a condensing boiler, and focuses on the optimal heating capacity of each of these components relative to each other. Two bivalent systems were considered: one based on a solid chemisorption cycle (GDSHPA), and one based on a resorption cycle (GDSHPB). Simulations of year-round space heating loads for two single-family houses, one in New York and the other Minnesota, were carried out and the seasonal gas coefficient of performance (SGCOP) calculated. The sorption heat pump's design heating capacity as a fraction of the bivalent system's total heating capacity was varied from 0 to 100%. Results show that SGCOP was effectively constant for sorption heat pump design capacity greater than 41% of the peak bivalent GDSHPA design capacity in Minnesota, and 32% for GDSHPB. In New York, these values were 42% and 34% for GDSHPA and GDSHPB respectively. The payback period was also evaluated based on postulated sorption heat pump component costs. The fastest payback was achieved with sorption heat pump design capacity between 22 and 44%.

Place, publisher, year, edition, pages
Elsevier Ltd , 2019. Vol. 150, p. 421-432
Keywords [en]
Bivalent, Residential, Sizing, Sorption heat pump, Energy utilization, Gas emissions, Heat pump systems, Housing, Investments, Pumps, Sorption, Space heating, Condensing boilers, Domestic hot water, Residential application, Single-family house, Sorption heat pumps, Heating
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-43052DOI: 10.1016/j.applthermaleng.2018.12.151ISI: 000462418200037Scopus ID: 2-s2.0-85059855024OAI: oai:DiVA.org:mdh-43052DiVA, id: diva2:1303809
Available from: 2019-04-10 Created: 2019-04-10 Last updated: 2019-04-11Bibliographically approved

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Blackman, Corey

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