KMITL

Permanent URI for this communityhttps://dspace.kmitl.ac.th/handle/123456789/1

Browse

Settings

Author: search.filters.author.Ananwattanaporn, S.

Search Results

Now showing 1 - 2 of 2
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    A study an impact of daylight with period time on illuminance and uniformity for building
    (2015-01-01)
    Sripramong, S.
    ;
    Ananwattanaporn, S.
    ;
    Ngaopitakkul, A.
    ;
    Jettanasen, C.
    The daylight can be applied for lighting system in building to reduce energy consumption. Although the illuminance on the task area can be increased using the daylight but various factors must be taken into account. This research aims to study an impact of illuminance with daylight in term of each time period. The illuminance is calculated with daylight function in DIALux program. In addition, the fluorescent T5 tube lamp is used in simulation. The case study room without daylight (base case) is compared, in term of illuminance, with the case study room with daylight of each time period. The obtained results show that the daylight can increase the illuminance in the building so the lighting system in many modern buildings has applied daylight in order to achieve specific result of energy savings. The obtained results are useful for design of the interior lighting system.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Impact of multi-distributed generation on key parameter in distribution system
    (2015-01-01)
    Ananwattanaporn, S.
    ;
    Ngaopitakkul, A.
    In recent year Distributed generation (DG) has become a point of interest in many countries due to several advantages such as improvement in power reliability, reduction of loss in transmission system, improved efficiency in network and lower environment impact. With this much benefit many networks working on integrate renewable energy source DG to the grid connection. Although it has many advantages, installation of DG in distribution network create several effect on the system. One of major effect is the fault current during a grid disturbance because DG changes the grid contribution to the fault current depending on the penetration level, locations and type of DGs, the operation of the protective system can be affected. In network that already has DG connected installing a new DG in network result in significant chance in fault current. Many research has been done such as effect of connecting DG in distribution network. This paper proposes an impact of multi-DG on distribution system characteristic when fault occur. System under studied is 22-kv distribution network with photovoltaic (PV) array and Wind Power Generation using PSCAD/EMTP program. Key parameter such as System current, voltage were obtained in simulation. Result from simulation reveal that DG has an effect on distribution system characteristic. Obtaining data from research can be used to design protection system for distribution system in the future.