Document n9oBvE7E7bGM1r86NDZLNxnbm

ings Insulation Screen* Kaiser Aluminum & Chemical Sales, Inc. Insulation Screens Kaiser Aluminum & Chemical Sales, Inc. General Sales Office, Palmolive Building, Chicago 11, Illinois Executive Office, Kaisbb Building, Oakland 12, California KAISER ALUMINUM SHADESGREEN* KAISER ALUMINUM SHADESCREEN Executive Office, Kaiser Building, Oakland 12, California Typical Calculations of Air Conditioning Economies Functional-- Attractive -- Economical-- Kaiser Aluminum ShadeScreen is a simple, attractive sun control device which screens out insects in addition to providing protection against excessive heat and glare. Combining function, attractiveness and economy, it permits new freedom of design--yet reduces both initial and operating costs. Principle of ShadeScreen--ShadeScreen has 17.5 louvers per inch permanently tilted at a downward angle of 17 from the horizontal. Utilizing the baffle effect of the louver and the inherent reflectivity of aluminum, ShadeScreen stops and blocks the strongest, hottest rays of the sun--outside the window before they pass through the glass. Reduces Air-Conditioning Capacity-- New Buildings--With ShadeScreen ex cessive heat is not allowed to enter the interior--hence does not have to be re moved. When designing air-conditioning systems for new buildings, the capacity of the equipment required may be con siderably reduced by specifying Kaiser Aluminum ShadeScreen for windows. Existing Buildings--Again, heat that does not enter a building does not have to be removed. The addition of Kaiser Alumi num ShadeScreen to existing air-con ditioned buildings increases the effi ciency of air-cooling equipment, thereby reducing operating costs. Admits Comfortable Diffused Light-- Proper light level in work areas of schools, offices and factories makes visual tasks more comfortable; consequently more accurate and efficient. ShadeScreen blocks out most of the undesirable direct sunlight and glare and distributes only reflected and diffused light to the in terior. . 10:00 AJi. Peak Load, 40 North Latitude 12:00 Noon Peak Load, 1P2i 40s North Latitude |g !sBj 4:00 P.M. Peak Load, 40* North Latitude Is ,.9-S s* tons 22 East Windows, 4' x 6' 22 East Windows, 4'x 6' |22 East Windows, 4'x 6 Unshaded Windows >72,336] ShadeScreened Win 18,480 dows Unshaded Windows 19,008 ShadeScreened Win 12,672 dows Unshaded Windows 16,368 ShadeScreened Win 12,144 dows Heat Blocked by S.S. >53,856] 18 South Windows, 4'x 6; Unshaded Windows >31,968 Heat Blocked by S.S. 6,336 18 South Windows, 4'x 6' Unshaded Windows 48,384! . Heat Blocked by S.S. 4,224' 0.35 18 SouthWindows, 4'x6/ ' Unshaded Windows 15,120 ShadeScreened Win 10,368 ShadeScreened Win 16,416 ShadeScreened Win 7,776 dows dows I dows- Heat Blocked by S.S. 20 West Windows, 4' x 6' Heat Blocked by S.S. 31,968 |20 West Windows, 4' x 6' , Heat Blocked by S.S. 7,344] 0.61 120 West Windows, 4'x6` Unshaded Windows 11,520 ShadeScreened Win 6,240. Unshaded-Windows 17,760 ShadeScreened Win 11,520 Unshaded Windows 109,440 ShadeScreened Win 35,040 dows dows dows Heat Blocked by Total Refrigeration S.S. '0.44 Saved--5.73 tons TotHa,,1el RateBfrliog__ce_k_r_ea*dt-iobnyCSSwa~..Swv_e. d. --6,32.4701 0.52i tons IHiceaagt UBloWcfkieud ubyy Total Refrigeration OS..So.l 7f44,4,4U0U0IO6..2U0 Saved--7-16 tons Instantaneous Heat Gain--Btu/hr/sq ft (Ordinary Glass--Clear Atmosphere--August 1) Exposure East Window Time of Day 6 7 8 9 10 11 Noon 1 2 3 4 5 6 unshaded 132 196 210 190 137 75 36 35 34 32 31 ShadeScreened 54 61 52 43 35 28 24 23 23 23 23 22 18 West Window unshaded ShadeScreened 4 8 13 18 24 30 37 77 150 204 228 155 2 3 6 9 13 18 24 36 48 60 73 83 73 Sun's Heat Passes Through Unprotected Windows. Solar radiation penetrates win dow glass--releases considerable heat as rays strike floors, walls, furniture and inhabitants. Glare is annoying. South Window. 48* N. Lat. unshaded ShadeScreened 8 14 31 70 113 143 154 149 123 2 5 11 20 30 37 42 44 43 38 .30 28 20 South Window 44-N. Lat. unshaded ShadeScreened 7 12 25 58 95 123 134 130 108 79 50 0 4 10 19 30 37 41 43 41 36 29 23 20 ft] South Window 40" N. unshaded 6 16 43 74 100 112 107 87 vd Lat. ShadeScreened 4 10 17 24 32 38 40 39 34 18 13 9 South Window 36* N. Lat. unshaded ShadeScreened 6 10 20 38 65 87 97 94 78 2 3 8 15 23 30 36 37 36 32 27 23 20 I South Window 30 N. Lat. unshaded ShadeScreened 5 12 22 39 55 63 62 52 40 31 3 8 13 21 28 33 35 34 32 27 23 17 Shade Screen Blochs Direct Solar Radiation. Tiny louvers block strongest, hottest rays of the sun outside the window. Keep interiors cooler. Reduce glare. * Patented. 486 These instantaneous heat gain measure ments include transmitted direct solar radiation, plus the absorbed heat gained by convection and re-radiation, plus transmission of heat through the glass caused by inside-outside temperature differentials. Kaiser Aluminum ShadeScreen reflects' more heat than other commonly used materials. Thus the screening itself remains cool and emits at a very low rate. These factors of high reflectivity and low emissivity combine with the sun blocking feature of ShadeScreen to pro duce cooler interior temperatures. 1. ASHAE Research Report, "The Shading of Sunlit Glass--An analysis of the effect of Uniformly Spaced Flat Opaque Slats," by G. V. Parmelee and W. W. Aubele, June 1952. 2. ASHAE Research Report, "The Shading of Sunlit Glass--An Experimental Study of Slat-Type Sun Shades;" by G. V. Parmelee, W. W. Aubele, and D. J. Veld.' October 1952. 487