Outdoor Performance of PV Technologies in Simulated Automotive Environments

Wheeler, Aaron; Leveille, Michael; Antón, Ignacio; Limpinsel, Moritz; Kurtz, Sarah

doi:10.1109/pvsc40753.2019.8981352

Cited by 11 publications

(8 citation statements)

References 6 publications

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“…3b Six modules were chosen for study including two monocrystalline modules, two multi-crystalline modules and two gallium arsenide modules. These modules have been described in detail elsewhere in these proceedings [11].…”

Section: Measurement Methodsmentioning

confidence: 99%

“…Fig. 5 shows application of King's analysis for back-of-module temperatures measured for the modules mounted in the black box in the open and closed configurations (SC1 and SC2 are large cSi, MC1 and MC2 are small mSi, and GA1 and GA2 are small GaAs modules, as described in [11]). The intercept and slope of the linear fit are the a and b coefficients (Eq.…”

Section: B Determining Nmot At Black-boxmentioning

confidence: 99%

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Determining the Operating Temperature of Solar Panels on Vehicles

Wheeler

Leveille

Antón

et al. 2019

2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)

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A technical basis for measurement of the operating temperatures of PV modules in vehicle-integrated applications is explored. Convective and radiative heat transfer are modeled to elucidate the methodology. Data reported for sister modules mounted in an experimental black box and in the sun roof of a car show very similar temperatures. The box provides a uniform environment in the closed configuration, but can be adjusted to explore a wider range of operating environments by opening or closing the sides and by insulating the back.

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Section: Measurement Methodsmentioning

confidence: 99%

Section: B Determining Nmot At Black-boxmentioning

confidence: 99%

Determining the Operating Temperature of Solar Panels on Vehicles

Wheeler

Leveille

Antón

et al. 2019

2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)

Self Cite

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show abstract

“…The measured values of the Si module [13] in the case of wind speed of 3 m s −1 are also shown. Temperature rise differences in Si and GaAs modules are attributed mainly to the difference in module size [14]. The measured results indicate that the module temperature depends on many parameters, such as solar irradiance, wind speed, type and size of modules and others (wind direction, module structure, module mounting configuration, shape and operating mode of car) as shown in figure 2.…”

Section: Analysis Of Tcs Of Solar Cell Modules Towards Development Of...mentioning

confidence: 96%

Analysis of temperature coefficients and their effect on efficiency of solar cell modules for photovoltaics-powered vehicles

Yamaguchi¹,

Masuda²,

Araki³

et al. 2021

J. Phys. D: Appl. Phys.

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Development of vehicles that are powered by photovoltaics (PV) is desirable, and is crucial for reduction in CO 2 emissions from the transport sector to realize a decarbonized society. Our investigations show that the majority of the passenger cars that cruise only with solar energy can be realized by installing a high-efficiency PV module. Although the Toyota Prius demonstration car, which is equipped with a 860 W rated-output power PV module, has shown a 36.6 km d −1 PV-powered driving range at solar irradiance of 6.2 kWh m −2 d −1 , practical driving ranges of PV-powered vehicles are shown to be shorter than the estimated values due to some losses of solar cell modules, such as temperature rise under sunny conditions. In this paper, we conduct a systematic analysis of the effects of these losses on the PV-powered driving range in order to obtain guidelines for the development of highly efficient solar cell modules for vehicle integrated applications. The analytical results show that the III-V compound solar cell modules have more suitable properties compared to other cells because of their higher potential conversion efficiencies of 37% with a smaller temperature coefficient of −0.19% • C −1 compared to −0.29% • C −1 for Si back contact solar cell modules and −0.26% • C −1 for Si heterojunction solar cell modules. Our theoretical calculations that take these losses into account suggest that installing the III-V-based triple-junction solar cell modules provides a potential PV-powered driving range of 30 km d −1 on average, and more than 50 km d −1 on a sunny day under the irradiation conditions in Japan.

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“…The temperature of a PV module affects its power-generation performance and longterm reliability [5,6]. The conversion efficiency of a solar cell decreases with the increase in cell temperature [7,8], and the PV module undergoes a temperature cycle owing to changes in solar radiation, ambient temperature, and wind velocity.…”

Section: Introductionmentioning

confidence: 99%

Measurement of the Convective Heat Transfer Coefficient and Temperature of Vehicle-Integrated Photovoltaic Modules

2022

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To improve the thermal design of vehicle-integrated photovoltaic (VIPV) modules, this study clarifies the characteristics of the convective heat transfer coefficient h between the vehicle roof surface and the surrounding air with respect to vehicle speed. Experiments on two types of vehicles with different body shapes indicate that h is strongly affected by vehicle speed, and it is also affected by body shape depending on the position on the roof. Empirical equations for approximating h as a function of vehicle speed and position on the vehicle roof are derived from the experimental datasets, and the differences between the equations derived herein and traditional equations that have been used for the heat transfer analysis of conventional stationary photovoltaic (PV) modules are clarified. Furthermore, the temperature change characteristics of the VIPV module were measured experimentally, confirming that h is the dominant factor causing the high temperature change rate of the VIPV module under driving conditions. In sunny summer conditions, the measured temperature change rate reaches up to 16.5 °C/min, which is approximately 10 times greater than that in the standard temperature cycle test for conventional stationary PV modules.

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Outdoor Performance of PV Technologies in Simulated Automotive Environments

Cited by 11 publications

References 6 publications

Determining the Operating Temperature of Solar Panels on Vehicles

Determining the Operating Temperature of Solar Panels on Vehicles

Analysis of temperature coefficients and their effect on efficiency of solar cell modules for photovoltaics-powered vehicles

Measurement of the Convective Heat Transfer Coefficient and Temperature of Vehicle-Integrated Photovoltaic Modules

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