<> Y��K7ޡ� In this work, the performance of louver shading devices applied to east, west and south façades is evaluated for different latitudes. Disadvantages of Sun Shading Devices Difficulties can be experienced in handling the internal shading devices like curtains and blinds. In conclusion, the use of shading devices is more effective in achieving cooling energy savings compared to the use of high performance glazing under the hot-humid climate of Malaysia.Peer review under responsibility of The Gulf Organisation for Research and Development.We use cookies to help provide and enhance our service and tailor content and ads. Applying shading devices on the West and East façades will result in higher annual cooling energy savings compared to North and South façades under hot-humid climates. Case Study: California Energy Commission East Façade uses movable vertical fins. Adjustable shading, such as external blinds, is the optimum solution for these elevations. [�^�,װZrW����Hk�F8|���N�%3Y�a����
r�*�R����u�R4��p��;���[eqp+U>E��ʎq�>oIm�ZM���9?�-�bɷ��Om;����[���86�{��Wg�����|��e�_ _1?��K��k9ĸkVI�B}�?�C�� ��3Eq9ט�v��A�YŲ��h��Y���(gJ'7+/���>J�V.�C��l�S�sJn��UƆ�T�� /�ir�&�#@����#PԚ�c�.��'0�`� Under the hot-humid climatic conditions in Malaysia, high-rise office buildings with large or fully glazed façades are facing a major problem of overheating due to high solar radiation through the glazed façades. ScienceDirect ® is a registered trademark of Elsevier B.V.Potential of shading devices and glazing configurations on cooling energy savings for high-rise office buildings in hot-humid climates: The case of Malaysia© 2016 The Gulf Organisation for Research and Development. The aim also extends to investigations on different cooling energy savings when shading devices are applied on façade glazing with different configurations and thermal performances. Twenty simulation building models were applied with different shading devices at different façade orientations and with high and low performance façade glazing. The simulation results indicate that high-rise office buildings in Malaysia use approximately 45.9% of total building energy for cooling purposes. Since a building may have glazed facades that are not south-oriented, the effect of shading devices in other orientations must be studied. The estimated annual cooling energy savings increase to between 5.0% and 9.9% when the shading devices are applied to all orientations of low-e double glazed façades. Horizontal shading devices, such as awnings, overhangs or recessed windows, are usually applied in the south orientation, but also have some impact on east and west facades. Rapid growing of energy use has raised critical concerns over energy supply difficulties and negative environmental impacts globally and among ASEAN countries. Egg-crate shading devices are able to result in higher annual cooling energy savings compared to vertical shading and horizontal shading under hot-humid climates. [����۸�M This has caused high cooling energy requirements. 4. %�쏢 ... East and West facades use movable exterior blinds. x��Y_o7�O�om�����c���P^h��I�����h��_��]{����ޅP���m����o�xf��W�6�J?������y����N
6��a�((��J�X��0x��~}�}��~ݥ}�wQ8偅�95��eL ��N�L{��Od����E;8��6g�����_?J�/�ߖ�������_"�+R�0/����d �o`۳UE�&�����1ј=�fK�?3�D���i3wh�f�`t
�Jl@F4^�����z2�;�ɗ�^eZ��Ms��!r{|%�E�/��Ho�~�t9��^Č&R3�0~�����;g�m�����Y$�7b~�k}���. stream It is recommended to use shading devices on low performance glazing compared to high performance glazing since the energy savings are more significant when shading devices are used on low performance glazing.
Malaysia is experiencing a high average annual energy demand growth rate of approximately 2.3% which large portion of that energy is used by office buildings. In South Korea, the evaluation criteria for installing shading devices are defined by regulations, but the standards of design methods are not clearly established.