热效率组合实验报告.pdf

热效率组合实验
某某某
应用物理 **********
摘要:本次实验主要是借助 pasco 系列实验的热效率实验仪进行实验。在实验
中,将热效率实验仪分别作为热机和热泵进行实验。将实验仪作为热机时,研究
热机的实际效率和卡诺效率是运行温度的函数和研究热机的实际效率,卡诺效率
及调整效率,并将卡诺效率和调整效率进行比较。将实验仪作为热泵时,研究热
泵的实际制冷系数,最大制冷系数和调整制冷系数,最后将最大制冷系数与调整
性能进行比较。
关键词:热效率实验仪,热机,热泵,效率,制冷系数

THERMAL EFFICIENCY APPARATUS
moumoumo u
Applied Physics 12345566
Abstract: This experiment is mainly with the help of thermal efficiency apparatus in the
PASCO series lab for experiments. In the experiment, the thermal efficiency apparatus regards as
heat and heat pump experiments. As the heat engine, we determine the actual efficiency and the
Carnot efficiency of the heat engine as a function of the operating temperatures and determine the
actual efficiency and the Carnot efficiency of the heat engine and pensate for the energy
losses to show that pensated actual efficiency approaches the Carnot efficiency. When
running the apparatus as a heat pump, we determine the actual coefficient of performance and the
maximum coefficient of performance and the adjusted coefficient of performance.
Keywords: Thermal Efficiency Apparatus, Heat Engine, Heat Pump, Efficiency, Coefficient
of Performance

负载电阻做功。热机效率的实验值可
1 引言
与理论值做比较。当仪器作为热泵使
在热力学中,热效率是与热能有用时,热泵将冷端的热量想高温传输,
关设备的无量纲制冷系数,如内燃机、此时就可以得到实际制冷系数和理论
制冷机等。对于动力循环,热效率通最大制冷系数。
常是指消耗的热能转换为净输出功的
2 实验原理
比率。在制冷或热泵循环中,热效率
是指消耗的机械能转换为净输出热能 热机