Analysis of a hybrid solar window for building integration

Tejas Ulavi, Tim Hebrink, Jane H Davidson

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

The technical performance of a hybrid 'solar window' that provides heating in addition to daylighting is evaluated. A wavelength selective film is coupled with a compound parabolic concentrator (CPC) to reflect and concentrate the infrared portion of the solar spectrum onto a tubular absorber while transmitting the visible portion of the spectrum into the interior space. The optical performance of the CPC/selective film is predicted using a Monte Carlo Ray- Tracing model. An adaptive concentrator geometry based on asymmetrical truncation of CPCs is analyzed for vertical windows. The predicted visible transmittance is 0.61 to 0.67 for double glazed windows. The solar heat gain coefficient and the U-factor are comparable to existing glazing technology. The annual thermal efficiency for double glazed windows based on use in Minneapolis, MN is 19-24%.

Original languageEnglish (US)
Pages (from-to)1941-1950
Number of pages10
JournalEnergy Procedia
Volume57
DOIs
StatePublished - Jan 1 2014
Event2013 ISES Solar World Congress, SWC 2013 - Cancun, Mexico
Duration: Nov 3 2013Nov 7 2013

Fingerprint

Daylighting
Ray tracing
Infrared radiation
Heating
Wavelength
Geometry
Hot Temperature

Keywords

  • Building integration
  • Hybrid
  • Solar window
  • Wavelength selective film

Cite this

Analysis of a hybrid solar window for building integration. / Ulavi, Tejas; Hebrink, Tim; Davidson, Jane H.

In: Energy Procedia, Vol. 57, 01.01.2014, p. 1941-1950.

Research output: Contribution to journalConference article

Ulavi, Tejas ; Hebrink, Tim ; Davidson, Jane H. / Analysis of a hybrid solar window for building integration. In: Energy Procedia. 2014 ; Vol. 57. pp. 1941-1950.
@article{9af633d55ed849deb9bef32b40c024cc,
title = "Analysis of a hybrid solar window for building integration",
abstract = "The technical performance of a hybrid 'solar window' that provides heating in addition to daylighting is evaluated. A wavelength selective film is coupled with a compound parabolic concentrator (CPC) to reflect and concentrate the infrared portion of the solar spectrum onto a tubular absorber while transmitting the visible portion of the spectrum into the interior space. The optical performance of the CPC/selective film is predicted using a Monte Carlo Ray- Tracing model. An adaptive concentrator geometry based on asymmetrical truncation of CPCs is analyzed for vertical windows. The predicted visible transmittance is 0.61 to 0.67 for double glazed windows. The solar heat gain coefficient and the U-factor are comparable to existing glazing technology. The annual thermal efficiency for double glazed windows based on use in Minneapolis, MN is 19-24{\%}.",
keywords = "Building integration, Hybrid, Solar window, Wavelength selective film",
author = "Tejas Ulavi and Tim Hebrink and Davidson, {Jane H}",
year = "2014",
month = "1",
day = "1",
doi = "10.1016/j.egypro.2014.10.058",
language = "English (US)",
volume = "57",
pages = "1941--1950",
journal = "Energy Procedia",
issn = "1876-6102",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Analysis of a hybrid solar window for building integration

AU - Ulavi, Tejas

AU - Hebrink, Tim

AU - Davidson, Jane H

PY - 2014/1/1

Y1 - 2014/1/1

N2 - The technical performance of a hybrid 'solar window' that provides heating in addition to daylighting is evaluated. A wavelength selective film is coupled with a compound parabolic concentrator (CPC) to reflect and concentrate the infrared portion of the solar spectrum onto a tubular absorber while transmitting the visible portion of the spectrum into the interior space. The optical performance of the CPC/selective film is predicted using a Monte Carlo Ray- Tracing model. An adaptive concentrator geometry based on asymmetrical truncation of CPCs is analyzed for vertical windows. The predicted visible transmittance is 0.61 to 0.67 for double glazed windows. The solar heat gain coefficient and the U-factor are comparable to existing glazing technology. The annual thermal efficiency for double glazed windows based on use in Minneapolis, MN is 19-24%.

AB - The technical performance of a hybrid 'solar window' that provides heating in addition to daylighting is evaluated. A wavelength selective film is coupled with a compound parabolic concentrator (CPC) to reflect and concentrate the infrared portion of the solar spectrum onto a tubular absorber while transmitting the visible portion of the spectrum into the interior space. The optical performance of the CPC/selective film is predicted using a Monte Carlo Ray- Tracing model. An adaptive concentrator geometry based on asymmetrical truncation of CPCs is analyzed for vertical windows. The predicted visible transmittance is 0.61 to 0.67 for double glazed windows. The solar heat gain coefficient and the U-factor are comparable to existing glazing technology. The annual thermal efficiency for double glazed windows based on use in Minneapolis, MN is 19-24%.

KW - Building integration

KW - Hybrid

KW - Solar window

KW - Wavelength selective film

UR - http://www.scopus.com/inward/record.url?scp=84922330549&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84922330549&partnerID=8YFLogxK

U2 - 10.1016/j.egypro.2014.10.058

DO - 10.1016/j.egypro.2014.10.058

M3 - Conference article

VL - 57

SP - 1941

EP - 1950

JO - Energy Procedia

JF - Energy Procedia

SN - 1876-6102

ER -