01722nas a2200169   4500008004100000245006100041210006100102260003100163490001600194520115400210100002501364700002901389700002401418700001601442700002201458856007201480       1997                        eng d00aGuidelines for Modeling Projecting Fenestration Products0 aGuidelines for Modeling Projecting Fenestration Products  aSan Francisco, CAc01/19980 v104, Part 13 a<p>Heat transfer patterns in projecting fenestration products (greenhouse windows, skylights, etc.) are different than those with typical planar window products. The projecting surfaces often radiate to each other, thereby invalidating the commonly used assumption that fenestration product interior surfaces radiate to a uniform room air temperature. The convective portion of the surface heat transfer coefficient is also significantly different from the one used with planar geometries, and is even more dependent on geometry and location. Projecting fenestration product profiles must therefore be modeled in their entirety. This paper presents the results of complete cross section, variable film-coefficient, 2-D heat transfer modeling of two greenhouse windows using the next generation of window specific heat transfer modeling tools. The use of variable film-coefficient models is shown to increase the accuracy with which simulation tools can compute U-factors. Simulated U-factors are also determined using conventional constant film coefficient algorithms. The results from both sets of simulations are compared with measured values.</p>1 aArasteh, Dariush, K.1 aFinlayson, Elizabeth, U.1 aCurcija, Dragan, C.1 aBaker, Jeff1 aHuizenga, Charlie  uhttps://facades.lbl.gov/publications/guidelines-modeling-projecting01252nas a2200145   4500008004100000050001400041245008200055210006900137260002800206520072500234100002400959700002500983700001901008856007901027       1995                        eng d  aLBL-3809300aGas Filled Panels: An Update on Applications in the Building Thermal Envelope0 aGas Filled Panels An Update on Applications in the Building Ther  aWashington, DCc11/19953 a<p>This paper discusses the application of Gas-Filled Panels to the building thermal envelope. Gas-Filled Panels, or GFPs, are thermal insulating devices that retain a high concentration of a low-conductivity gas, at atmospheric pressure, within a multilayer infrared reflective baffle. The thermal performance of the panel depends on the type of gas fill and the baffle configuration. We present computer simulation results showing the improvement in thermal resistance resulting from using an argon-GFP in place of glass fiber batt insulation in wood-frame construction. This report also presents estimates of the quantity and cost of material components needed to manufacture GFPs using current prototype designs.</p>1 aGriffith, Brent, T.1 aArasteh, Dariush, K.1 aTurler, Daniel  uhttps://facades.lbl.gov/publications/gas-filled-panels-update-applications