Indoor Soil Deposition Chamber

Evaluating Effectiveness of Antisoiling Coatings

Praveen Ravi, Mathew Muller, Lin J. Simpson, Darshan Choudhary, Shanmukha Mantha, Sai Subramanian, Shalaim Virkar, Telia Curtis, Govindasamy Tamizhmani

Research output: Contribution to journalArticle

Abstract

An indoor soil deposition method has been developed to simulate natural soil deposition on glass coupons or one-cell and multicell photovoltaic (PV) modules. This method uses variable ambient humidity, coupon/module temperature, and dust composition within a single custom-made chamber to create a natural and uniform soil deposition layer. Antisoiling (AS) coatings from two different manufacturers were applied on two one-cell monocrystalline silicon modules. Three layers of Arizona road dust have been deposited on the one-cell modules with AS coatings and an uncoated one-cell reference module at varied humidity levels. The soiled modules were exposed to an open-circuit subsonic wind tunnel at varying speeds and the effectiveness of AS coatings have been quantified using the transmittance gain. Transmittance loss resulting from the AS coating has been measured and compared with the transmittance of the uncoated reference module using a reflectance spectrophotometer. Reflectance measurements have also been taken to compare the transmittance loss of Arizona road dust and soil collected from PV modules’ superstrates. The soiled one-cell modules were then exposed to rain from a rain simulator. The transmittance gain due to rain exposure is quantified using a rain gain and rain coefficient. These tests cumulatively may be used to help develop a test standard for evaluating the effectiveness of AS coatings.

Original languageEnglish (US)
JournalIEEE Journal of Photovoltaics
DOIs
StateAccepted/In press - Jan 1 2018

Fingerprint

Rain
soils
modules
chambers
Soils
coatings
Coatings
rain
Dust
transmittance
Atmospheric humidity
cells
Monocrystalline silicon
dust
Reflectometers
Spectrophotometers
roads
humidity
subsonic wind tunnels
Wind tunnels

Keywords

  • Antisoiling (AS) coating
  • Coatings
  • Humidity
  • Loss measurement
  • Rain
  • rain coefficient
  • rain gain
  • Roads
  • Soil
  • Soil measurements
  • soiling loss
  • transmittance
  • wind coefficient
  • wind gain

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Indoor Soil Deposition Chamber : Evaluating Effectiveness of Antisoiling Coatings. / Ravi, Praveen; Muller, Mathew; Simpson, Lin J.; Choudhary, Darshan; Mantha, Shanmukha; Subramanian, Sai; Virkar, Shalaim; Curtis, Telia; Tamizhmani, Govindasamy.

In: IEEE Journal of Photovoltaics, 01.01.2018.

Research output: Contribution to journalArticle

Ravi, Praveen ; Muller, Mathew ; Simpson, Lin J. ; Choudhary, Darshan ; Mantha, Shanmukha ; Subramanian, Sai ; Virkar, Shalaim ; Curtis, Telia ; Tamizhmani, Govindasamy. / Indoor Soil Deposition Chamber : Evaluating Effectiveness of Antisoiling Coatings. In: IEEE Journal of Photovoltaics. 2018.
@article{353c387e87894c05abdeb99910b87580,
title = "Indoor Soil Deposition Chamber: Evaluating Effectiveness of Antisoiling Coatings",
abstract = "An indoor soil deposition method has been developed to simulate natural soil deposition on glass coupons or one-cell and multicell photovoltaic (PV) modules. This method uses variable ambient humidity, coupon/module temperature, and dust composition within a single custom-made chamber to create a natural and uniform soil deposition layer. Antisoiling (AS) coatings from two different manufacturers were applied on two one-cell monocrystalline silicon modules. Three layers of Arizona road dust have been deposited on the one-cell modules with AS coatings and an uncoated one-cell reference module at varied humidity levels. The soiled modules were exposed to an open-circuit subsonic wind tunnel at varying speeds and the effectiveness of AS coatings have been quantified using the transmittance gain. Transmittance loss resulting from the AS coating has been measured and compared with the transmittance of the uncoated reference module using a reflectance spectrophotometer. Reflectance measurements have also been taken to compare the transmittance loss of Arizona road dust and soil collected from PV modules’ superstrates. The soiled one-cell modules were then exposed to rain from a rain simulator. The transmittance gain due to rain exposure is quantified using a rain gain and rain coefficient. These tests cumulatively may be used to help develop a test standard for evaluating the effectiveness of AS coatings.",
keywords = "Antisoiling (AS) coating, Coatings, Humidity, Loss measurement, Rain, rain coefficient, rain gain, Roads, Soil, Soil measurements, soiling loss, transmittance, wind coefficient, wind gain",
author = "Praveen Ravi and Mathew Muller and Simpson, {Lin J.} and Darshan Choudhary and Shanmukha Mantha and Sai Subramanian and Shalaim Virkar and Telia Curtis and Govindasamy Tamizhmani",
year = "2018",
month = "1",
day = "1",
doi = "10.1109/JPHOTOV.2018.2877021",
language = "English (US)",
journal = "IEEE Journal of Photovoltaics",
issn = "2156-3381",
publisher = "IEEE Electron Devices Society",

}

TY - JOUR

T1 - Indoor Soil Deposition Chamber

T2 - Evaluating Effectiveness of Antisoiling Coatings

AU - Ravi, Praveen

AU - Muller, Mathew

AU - Simpson, Lin J.

AU - Choudhary, Darshan

AU - Mantha, Shanmukha

AU - Subramanian, Sai

AU - Virkar, Shalaim

AU - Curtis, Telia

AU - Tamizhmani, Govindasamy

PY - 2018/1/1

Y1 - 2018/1/1

N2 - An indoor soil deposition method has been developed to simulate natural soil deposition on glass coupons or one-cell and multicell photovoltaic (PV) modules. This method uses variable ambient humidity, coupon/module temperature, and dust composition within a single custom-made chamber to create a natural and uniform soil deposition layer. Antisoiling (AS) coatings from two different manufacturers were applied on two one-cell monocrystalline silicon modules. Three layers of Arizona road dust have been deposited on the one-cell modules with AS coatings and an uncoated one-cell reference module at varied humidity levels. The soiled modules were exposed to an open-circuit subsonic wind tunnel at varying speeds and the effectiveness of AS coatings have been quantified using the transmittance gain. Transmittance loss resulting from the AS coating has been measured and compared with the transmittance of the uncoated reference module using a reflectance spectrophotometer. Reflectance measurements have also been taken to compare the transmittance loss of Arizona road dust and soil collected from PV modules’ superstrates. The soiled one-cell modules were then exposed to rain from a rain simulator. The transmittance gain due to rain exposure is quantified using a rain gain and rain coefficient. These tests cumulatively may be used to help develop a test standard for evaluating the effectiveness of AS coatings.

AB - An indoor soil deposition method has been developed to simulate natural soil deposition on glass coupons or one-cell and multicell photovoltaic (PV) modules. This method uses variable ambient humidity, coupon/module temperature, and dust composition within a single custom-made chamber to create a natural and uniform soil deposition layer. Antisoiling (AS) coatings from two different manufacturers were applied on two one-cell monocrystalline silicon modules. Three layers of Arizona road dust have been deposited on the one-cell modules with AS coatings and an uncoated one-cell reference module at varied humidity levels. The soiled modules were exposed to an open-circuit subsonic wind tunnel at varying speeds and the effectiveness of AS coatings have been quantified using the transmittance gain. Transmittance loss resulting from the AS coating has been measured and compared with the transmittance of the uncoated reference module using a reflectance spectrophotometer. Reflectance measurements have also been taken to compare the transmittance loss of Arizona road dust and soil collected from PV modules’ superstrates. The soiled one-cell modules were then exposed to rain from a rain simulator. The transmittance gain due to rain exposure is quantified using a rain gain and rain coefficient. These tests cumulatively may be used to help develop a test standard for evaluating the effectiveness of AS coatings.

KW - Antisoiling (AS) coating

KW - Coatings

KW - Humidity

KW - Loss measurement

KW - Rain

KW - rain coefficient

KW - rain gain

KW - Roads

KW - Soil

KW - Soil measurements

KW - soiling loss

KW - transmittance

KW - wind coefficient

KW - wind gain

UR - http://www.scopus.com/inward/record.url?scp=85056179161&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85056179161&partnerID=8YFLogxK

U2 - 10.1109/JPHOTOV.2018.2877021

DO - 10.1109/JPHOTOV.2018.2877021

M3 - Article

JO - IEEE Journal of Photovoltaics

JF - IEEE Journal of Photovoltaics

SN - 2156-3381

ER -