COOL CURTAIN
18Pages

JAPAN TESTING CENTER FOR CONSTRUCTION MATERIALS CENTRAL TEST LABORATORY 5-21-20, INARI, SOKA CITY, SAITAMA, 340-0003, JAPAN TELEPHONE: +81-48-935-1991 TELEFAX: +81-48-931-8323 NOTE: This is an English version report translated from the original test report. Client Address 1285 Yabutuka-cho, Ota-shi, Gunma, Japan Firm Name Sakailace limited Company Designation of Test Performance test for curtain lace This is to certify that the entitled test result is true and correct as written in this test report. JAPAN TESTING CENTER FOR CONSTRUCTION MATERIALS CENTRAL TEST LABORATORY Takatsugu Mano...

Performance test for curtain lace

1. Description of test The tests were performed on the curtain lace submitted by Sakailace limited Company to measure the following items: (1) Ultraviolet transmittance (2) Solar heat gain coefficients 2. Test specimens The outline of the test specimens is described in Table 1. The outline of the test specimens is based on the document submitted by the client. Table 1 Test specimen outline Name Curtain lace Trade name Cool curtain Test item Ultraviolet transmittance Solar heat gain coefficients 1000 mm in width and 1000 mm in length (When the specimen is set) 3. Test method The tests were...

300 nm to 380 nm, and the ultraviolet transmittance was obtained. (2) Solar heat gain coefficients The test was performed in accordance with JSTM K 6101. Figure 1 shows the outline of the test equipment, Photo 1 shows the test equipment, Photo 2 shows the installation state of the specimen, and Photo 3 shows the testing status. The surface heat transfer coefficients for the inside and outside of the room were set at the following values: - Surface heat transfer coefficient for the indoor side Surface heat transfer coefficient for the outdoor side Based on the measurement result, the solar...

Solar simulator Air curtain Reflection board Photo 1 Test equipment Photo 2 Installation state of the specimen (outdoor side)

Photo 3 Testing status

4. Test results (1) Ultraviolet transmittance The test result is shown in Table 2, and the spectral transmittance measurement result is shown in Figure 2. Table 2 Ultraviolet transmittance test result (trade name: cool curtain) Item Ultraviolet transmittance (Wavelengths ranging from 300 to 380 nm) Spectral transmittance (%) Figure 2 Spectral transmittance measurement result (trade name: cool curtain)

(2) Solar heat gain coefficients The test result is shown in Table 3. The explanations of the terms partially quoted from JIS A 5759, JIS R 3106 and JIS R 3209 are shown in Appendix Table 1. Table 3 Solar heat gain coefficient test result (trade name: cool curtain) Item Air temperature inside the calorimeter box Solar heat gain amount Air temperature inside the calorimeter box Solar heat gain amount Shading coefficient Solar heat gain coefficient a) Solar heat removal rate Note a) The solar heat gain coefficient η was calculated with the solar heat gain coefficient η3 of FL3mm being 0.88.

Appendix Table 1 Explanations of terms (partially quoted from JIS A 5759, JIS R 3106 and JIS R 3209) Term Ultraviolet transmittance Shading coefficient Solar heat gain coefficient Solar heat removal rate Explanation The ultraviolet wavelengths ranging from 300 to 380 nm are in parts of UVB and UVA bands. The ultraviolet transmittance is the ratio of the ultraviolet ray passing through a specimen to the total ultraviolet ray incident on the specimen. The shading coefficient is the rate of the solar heat passing through a specimen and entering a room and is represented by the ratio of a float...