Decreasing the Load of Air to Water Heat Pump Systems on Electrical Grids

IF 1.4 Q4 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY

Environmental and Climate Technologies Pub Date : 2022-01-01 DOI:10.2478/rtuect-2022-0027

H. Pihlap, Alo Allik, S. Muiste

引用次数: 0

Abstract

Abstract This article focuses on decreasing the energy taken from the electrical grid by air to water heat pumps in buildings that use renewable energy. Conventionally the majority of the produced renewable energy is not used directly to operate the heat pump. An energy management concept was developed, with a main new parameter – RCOP that enables to create an optimal working schedule that considers the renewable energy availability and heat pump coefficient of performance in relation to the weather. The concept was proven with computer models that use weather forecasts, renewable energy production, and heat demand. The achieved yearly savings in grid-electricity used by the heat pump were 14.3 %. The fluctuations in the grid load were decreased which as well were quantified by a lower standard deviation of the demand. In months with the best renewable energy availability, the grid electricity savings can reach up to 70 %.

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降低电网空气-水热泵系统负荷的研究

摘要:本文的重点是减少能源从电网通过空气到水热泵的建筑物，使用可再生能源。传统上，大多数生产的可再生能源不直接用于运行热泵。一个能源管理概念被开发出来，其中一个主要的新参数- RCOP，可以创建一个最佳的工作计划，考虑可再生能源的可用性和热泵性能系数与天气的关系。这一概念通过使用天气预报、可再生能源生产和热量需求的计算机模型得到了验证。热泵使用的电网电力每年节省14.3%。电网负荷的波动减少了，这也通过较低的需求标准差来量化。在可再生能源可用性最好的月份，电网节电可达70%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Environmental and Climate Technologies GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY-

CiteScore

3.10

自引率

28.60%

发文量

审稿时长

16 weeks

期刊介绍： Environmental and Climate Technologies provides a forum for information on innovation, research and development in the areas of environmental science, energy resources and processes, innovative technologies and energy efficiency. Authors are encouraged to submit manuscripts which cover the range from bioeconomy, sustainable technology development, life cycle analysis, eco-design, climate change mitigation, innovative solutions for pollution reduction to resilience, the energy efficiency of buildings, secure and sustainable energy supplies. The Journal ensures international publicity for original research and innovative work. A variety of themes are covered through a multi-disciplinary approach, one which integrates all aspects of environmental science: -Sustainability of technology development- Bioeconomy- Cleaner production, end of pipe production- Zero emission technologies- Eco-design- Life cycle analysis- Eco-efficiency- Environmental impact assessment- Environmental management systems- Resilience- Energy and carbon markets- Greenhouse gas emission reduction and climate technologies- Methodologies for the evaluation of sustainability- Renewable energy resources- Solar, wind, geothermal, hydro energy, biomass sources: algae, wood, straw, biogas, energetic plants and organic waste- Waste management- Quality of outdoor and indoor environment- Environmental monitoring and evaluation- Heat and power generation, including district heating and/or cooling- Energy efficiency.