Double glazing systems for greenhouses

Conference · Thu Jan 01 00:00:00 EST 1981 · Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States)

OSTI ID:5776714

Sherry, W J; White, J W

Utilization of double layer greenhouse glazing systems in place of single layer lapped glass significantly reduced heating requirements. Studies involving air-inflated twin layers of polyethylene or polyester, insulating glass, or extruded double layers of polycarbonate or polymethylmethacrylate indicated the potential for fossil fuel energy savings of 35 to 40% annually, compared to single skin lapped glass. Flux densities of solar radiation were also reduced significantly resulting in lower dry weight accumulations of chrysanthemums. Addition of a twin layer air-inflated polyethylene glazing system to existing glasshouses was also shown to be an effective energy conservation measure related to the floor area to exposed surface area ratio. Significant reductions in cut flower rose yields were observed under this glazing system which strongly indicated that this energy conservation technique is not an economically viable alternative for northern growers of high light requiring crops.

• Research Organization: Pennsylvania State Univ., University Park
• OSTI ID: 5776714
• Report Number(s): CONF-810509-(Vol.1)
• Journal Information: Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States), Vol. 4.1; Conference: Annual conference of the International Solar Energy Society, Philadelphia, PA, USA, 26 May 1981
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
GREENHOUSES
ENERGY CONSERVATION
GLAZING MATERIALS
GLASS
PLANTS
PMMA
POLYCARBONATES
POLYESTERS
POLYETHYLENES
SOLAR FLUX
WEIGHT
YIELDS
BUILDINGS
CARBON COMPOUNDS
CARBONATES
ESTERS
MATERIALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
POLYACRYLATES
POLYMERS
POLYOLEFINS
POLYVINYLS
140901* - Solar Thermal Utilization- Space Heating & Cooling