A novel energy index to assess the impact of a solar PV-based ground source heat pump on the power grid
| Autor: | Giuseppe Diglio, Carlo Roselli, F. Tariello, Maurizio Sasso |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Chiller
Primary energy 020209 energy Battery storage system 02 engineering and technology TRNSYS Automotive engineering law.invention law 0202 electrical engineering electronic engineering information engineering 0601 history and archaeology Photovoltaic system Specific impact on power grid index 060102 archaeology Renewable Energy Sustainability and the Environment business.industry 06 humanities and the arts Grid Renewable energy TRNSYS Photovoltaic system Battery storage system Dynamic simulation Ground source heat pump Specific impact on power grid index Ground source heat pump Environmental science Electricity business Dynamic simulation Heat pump |
| Zdroj: | Renewable Energy. 143:488-500 |
| ISSN: | 0960-1481 |
| DOI: | 10.1016/j.renene.2019.05.023 |
| Popis: | A novel energy index to assess plants capable of producing electricity from a renewable source is introduced in this paper. This index allows to evaluate the bidirectional energy flows on the external power grid, due the electricity exported to the grid from a renewable-based system and the electricity imported from the grid, in comparison to the electricity demand of a building. In this paper, attention is focused on a solar photovoltaic (PV) system satisfying the energy demands of an office building. Electricity from the solar PV system is partly used to operate a ground source heat pump to meet space heating and cooling demands, and partly used for other electrical loads. An energy, economic and environmental impact analysis of the proposed system is also reported. A sensitivity analysis varying the photovoltaic system capacity (2.5–10.0 kW) and the battery storage size (3.2–9.6 kWh) is also carried out. A saving in terms of primary energy and a carbon dioxide emission reduction can be obtained by a renewable-based system compared to a conventional one consisting of a natural gas fuelled boiler for space heating, an electric chiller for space cooling and the national power grid for electricity demand. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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