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Theoretical Estimation of the Performance of a Photovoltaic-Thermal Collector (PV/T) System Coupled with a Heat Pump in a Sustainable House in Toronto 多伦多可持续住宅中光伏集热器(PV/T)系统与热泵耦合性能的理论估算
在这项研究中,进行了一项分析,以评估将光伏集热器(PV/T)与阿托伦托的两级变容量空气源热泵(TS-VCASHP)和多伦多的区域保护局(TRCA)原型可持续住宅(ASH)相结合的潜在效益。已经进行了综合分析,以预测PV/T系统布置配置ns×NR(Rowsrn和系列中的PV/T系统数量)、空气质量流量和管道深度对热能生产、电能生产、热泵性能系数(COP)、热泵耗电量和光伏/T系统总效率的影响。发现COP可以从2.74增加到最大值3.45。结果表明,将PV/T系统与空气源热泵相结合,供暖用热泵能耗降低了20.2%。 在总质量流量为1.2kg/s(2.64lb/s)的情况下,5×3、5×4和5×5布置的最大系统效率分别为54%、50%和47%。对于一个阵列中使用的相同总数量的PV/T板和相同的总质量流量,为了产生更多的热能,最好使用大于NR的避风港。这种考虑对总发电量影响不大。研究发现,每个光伏电池板产生的电能量取决于电池板在一排中的位置。第一块光伏板的效率最高(14.16%),发电量为763Wh(2603 Btu/h),而第五块光伏板的效率最低(14.06%),发电量为756Wh(2580 Btu/h)。引文:ASHRAE交易——第120卷,第一部分,纽约州纽约
In this study, an analysis has been conducted to estimate the potential benefits of integratingaphotovoltaic thermal collector (PV/T) with a two-stage variable capacity air-source heat pump (TS-VCASHP) in aToronto and Region ConservationAuthority (TRCA) archetype sustainable house (ASH) in Toronto. A comprehensive analysis has been conducted to predict the effect of PV/T system arrangement configurationNS ×NR (number of PV/T systems in rowsNR and seriesNS), air mass flow rate and duct depth on thermal energy production, electrical energy production, heat-pump coefficient of performance (COP), electricity consumed by the heat pump, and overall PV/T system efficiency. It was found that COP could be increased from 2.74 to a maximum value of 3.45. The results show that the heat pump electricity consumption for heating purpose was reduced by 20.2% with combining PV/T systems with air-source heat pumps. The maximum achieved system efficiencies for the arrangements 5 × 3, 5 × 4, and 5 × 5, with total mass flow rate of 1.2 kg/s (2.64 lb/s)were54%,50%,and47%,respectively.For the same total number of PV/T panels used in one array and same total mass flow rate, it is better to haveNS greater thanNR in order to produce more thermal energy. This consideration has slight effect on the total electricity production. It is found that the amount of electrical energy produced from each PV panel depends on the panel position in a row. The first PV panel has the highest efficiency (14.16%) and produces 763Wh(2603 Btu/ h) of electricity, while the fifth PV panel has the lowest value of efficiency (14.06%) and generates 756Wh (2580 Btu/h) of electricalenergy.
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