| ABSTRACT |
Public awareness towards green energy are on the rise and this can be prove by many product being manufactured or pre-required to be made as energy saving devices mainly to save consumer from spending more on utility billing. These schemes are popular nowadays and many homemade appliances are turned into energy saving gadget which attracts the attention of consumers. Knowing the public demands and pattern towards purchasing home appliances thus the idea of ¿energy saving suction hood (ESSH)¿ is proposed. The ESSH can be used in many places that require smoke ventilation or even to reduce the room temperature as many conventional suction hoods (CSH) do, but this device works automatically by the usage of sensors that detects the smoke/temperature and automatically spins the exhaust fan. As it turns, the mechanical rotation rotates the AC generator which is coupled together with the fan and then charges the battery. The innovation of this product is, it does not rely on the utility supply as it is also hook up with a solar panel which also charges the battery, Secondly, it generates energy as the exhaust fan mechanically rotates. Thirdly, an energy loop back feature is introduced to this system which will supply for the ventilator fan. Another major innovation is towards interfacing this device with an in house production of generator. This generator is produced by proper design on stator as well as rotor to reduce the losses. A comparison is made between the ESSH and the CSH and result shows that the ESSH saves 259.2kWh/year of utility supply which is used by CSH. This amount of energy can save RM 4.70 from monthly utility bill and a total of RM 56.40 per year. In fact this product can generate 175 Watt of power from generator(75W) and solar panel(100W) that can be used either to supply other household appliances and/or to loop back to supply the fans motor. The minimum selling price of this item is approximately RM1, 000.00 compared to the CSH model which is RM 1,221.84. The price is applied at the convenience of the consumer. Based on this project, if a business estimation of 1000 unit is sold, it can save up to 259.2MWh from utility and up to RM1 Million income can be generated. The innovation of this system is essential for future production of other equipment by using the loopback energy method and turning most equipment into a stand alone system.
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