Glass Industry News

Cardinal Glass Case Study: Fort Wayne Project

, Cardinal Glass

In the Midwest comfort comes at a high price. During winter, icy winds and sub-zero temperatures can run up heating bills. The same can be said for the summer months, when homeowners cope with solar heat gains and 90-degree temperatures. In order to maintain comfortable homes, both heating and air-conditioning units under go excessive peak loads.

Energy efficient glass like Cardinal’s LoĒ² glass can make a year-round difference. It controls solar heat gains during the summer and winter seasons. Cardinal commissioned a two-year study in Fort Wayne, Indiana and the results confirmed our calculations. Energy efficient glass such as Cardinal LoĒ² reduces heating and cooling energy usage up to 15%.

TEST PROTOCOLS

The tests were conducted in 4 identical houses. Two were facing south and two were facing west. All houses had the following configurations:

  • Wood frame windows
  • 4.0 ton A/C unit in clear double-pane window houses
  • 4.0 ton A/C unit in high solar gain low-e houses
  • 3.0 ton A/C unit in LoĒ² houses


Following the tests, the results from the houses using LoĒ² were as follows:

  • $600 A/C equipment savings
  • Heating and cooling energy savings vs. both clear and high solar gain low-e
  • Improved comfort over both

ENERGY SAVINGS AND COMFORT

The chart below shows the difference in the energy consumption based on the location of the houses as well as glass type. The heating and cooling costs for a west-facing house are about 12% greater than the south. A house with west exposure has less beneficial solar gain in winter and more harmful gain in the summer.

In both orientations, there were heat savings with the high solar gain low-e. However, after air-conditioning costs were added, LoĒ² provided the maximum energy savings and comfort.

 

THE BOTTOM LINE: MEASURED TEMPERATURES SUPPORT THE COMFORT MESSAGE.

The profiles on the chart below show a comparison of LoĒ² and clear double-pane glass on a sunny winter day.

Throughout this 24-hour period, the heating energy consumption for the two glass types was nearly equal but not the comfort level inside the house.

At night, the clear glass starts out at 12°F colder than LoĒ². In order to match the comfort of LoĒ², the thermostat in this house should have been raised by 2°F.

During the day, the high solar gain that comes through the clear glass heats the room and the glass surface. The clear glass house sees a 40°F fluctuation in room side glass temperature (cold at night and hot during the day). Discomfort concerns will prompt the homeowner to intervene, e.g. closing the blinds, opening the window to vent heat, and certainly challenges the notion that passive gains are “free heat”.

, © Cardinal Glass

Notícias sobre o material do site é copyright e pertence à empresa ou ao seu fornecedor de terceiros notícia, e todos os direitos reservados. Qualquer usuário que acessa esse material poderá fazê-lo apenas para seu próprio uso pessoal, bem como a utilização desse material é de risco exclusivo do Utilizador. A redistribuição ou exploração comercial de material tal notícia é expressamente proibida. Se tal notícia material é fornecido por um terceiro, cada utilizador concorda em observar e estar vinculado aos termos específicos de utilização aplicáveis a material notícia. Nós não representamos nem endossamos a precisão ou confiabilidade de qualquer informação contida em qualquer notícia ou sites externos referidos na notícia.

Should the content or the design of these sites violate third parties rights or legal prescriptions, we kindly ask you to send us a respective message without invoice or cost. We guarantee that passages where the claim is considered as justified will be removed immediately, without any necessity to involve any lawyer into this issue. We will reject any claim caused by submission of a honorary note in this regard without any prior contact and confirmation of the issueby us and we reserve the right ssue counter claim ourselves because of violation of aforesaid conditions.



Info Grid

Glass studies

Updated worldwide glass study 2024

plants.glassglobal.com

Updated hollow glass study 2024

Request more information

Updated float glass study 2024

Request more information

Further glass market studies

Request more information

Perfil da Empresa



Updated worldwide glass market study 2024 available now for flat, container glass and tableware

We have updated our international studies on flat glass, container glass and tableware for 2024.

This unique software provides a global overview about glass producers and technical details. Easy to use and clear tables summarize information and data about glass makers such as: Glass types: flat glass, container glass, tableware, production capacities in regions and countries, number of furnaces, furnace types, year of construction, glass types and sub-types, products, project information, special news and downloads.

Further databases supplying demoscopic data and import and export data complete the market survey. Based on these data, prepare individual country profiles with information about local production capacities, local market sizes and expected demand in the future.

Request your offer via plants.glassglobal.com.

Updated container glass study 2024

X

Updated float glass study 2024

X

Further glass studies and reports 2024

X