Assessing heat pumps as flexible load
Assessing heat pumps as flexible load
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DOI：
10.1177/0957650912454830
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发表时间：
2013-02
期刊：
影响因子：
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通讯作者：
Jun Hong;N. Kelly;Ian Richardson;M. Thomson
中科院分区：
文献类型：
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作者：
Jun Hong;N. Kelly;Ian Richardson;M. Thomson
在未来以可再生能源发电为主的电力系统中，通过热泵和微型热电联产等以热为主导的技术的灵活运作来控制国内需求的能力，可能是提供安全稳定的电能供应的关键因素。使用基于模拟的方法，本研究探讨了建筑物的热特性和空气源热泵运行时间的灵活性范围之间的联系。这是根据对最终用户舒适性和便利性的影响进行评估的。一个独立的住宅和单位进行了详细的建模沿着与他们的供暖系统，以确定时间的转变，可实现的热泵运行时间为现在和未来的住宅。模拟结果表明，在现有的建筑存量转移热泵运行时间的范围是有限的，只有1-2小时的时间转移之前，有一个严重的影响居住者的舒适性。然而，如果隔热水平得到显着提高，并在加热系统中加入大量的热缓冲，则可以实现高达6小时的相当大的时移，而不会对空间或热水温度产生显着影响。
In a future power system featuring significant renewable generation, the ability to manipulate domestic demand through the flexible operation of heat-led technologies such as heat pumps and micro-combined heat and power could be a critical factor in providing a secure and stable supply of electrical energy. Using a simulation-based approach, this study examined the linkage between the thermal characteristics of buildings and the scope for flexibility in the operating times of air source heat pumps. This was assessed against the resulting impact on the end-user’s comfort and convenience. A detached dwelling and flat were modelled in detail along with their heating system in order to determine the temporal shift achievable in the heat pump operating times for present-day and future dwellings. The simulation results indicated that the scope for shifting heat pump operating times in the existing building stock was limited, with time shifts of only 1–2 h achieved before there was a serious impact on the comfort of the occupant. However, if insulation levels were dramatically improved and substantial levels of thermal buffering were added into the heating system, sizable time shifts of up to 6 h were achievable without a significant impact on either space or hot water temperatures.