- Photovoltaic System Optimization Techniques
- Solar Thermal and Photovoltaic Systems
- Solar Radiation and Photovoltaics
- Photovoltaic Systems and Sustainability
- solar cell performance optimization
- Greenhouse Technology and Climate Control
- Energy and Environment Impacts
- Light effects on plants
- Coconut Research and Applications
- Thermal Radiation and Cooling Technologies
- Hybrid Renewable Energy Systems
- Food Chemistry and Fat Analysis
- Postharvest Quality and Shelf Life Management
- Phytochemicals and Antioxidant Activities
- Oil Palm Production and Sustainability
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Nanocomposite Films for Food Packaging
- Advanced Battery Technologies Research
- Solar-Powered Water Purification Methods
- Electric Vehicles and Infrastructure
- Energy Load and Power Forecasting
- Energy Harvesting in Wireless Networks
- Advanced Thermodynamic Systems and Engines
- Leaf Properties and Growth Measurement
- Refrigeration and Air Conditioning Technologies
Universiti Putra Malaysia
2015-2024
Serdang Hospital
2023
Abstract This study was carried out to compare the antioxidant and nutritional properties of coconut ( Cocos nucifera L.) sap with other natural sources sugar such as palm Borassus flabellifer ) sugarcane Saccharum officinarum L.). Coconut juice from were analyzed for proximate composition, pH total soluble solid (TSS), color, profile, vitamin (total phenolic contents, DPPH, FRAP, ABTS), mineral content. The results indicated that possesses high DPPH (23.42%), FRAP (2.09 mM/ml), ABTS...
Solar Photovoltaic (PV) system is one of the most significant forms renewable energy resources, and it requires accuracy to assess, design, extraction its parameters. Several methods have been extensively applied mimic nonlinearity multi-model behavior PV system. However, there no method date that can guarantee extracted parameter model accurate one. Therefore, this paper presents a unique approach known as Hybridized Arithmetic Operation Algorithm based on Efficient Newton Raphson (HAOA...
PV–TEG hybrid system is widely discussed nowadays, as an alternative way to maximize solar radiation energy which from both of its light and heat. In recent years, the idea using thermoelectric generators (TEGs) extract heat waste has increased with applications varying milliwatts kilowatts. To form a circuit, numbers TEG modules can be connected in series and/or parallel configuration produce required voltage current. systems, due operating environments, each module's power generation...
Coconut sugar has a caramel color with taste like brown sugar. It is commonly used as natural sweetener. However, coconut been produced from sap using traditional method that involves heating the at high temperature (>100 °C) in an open pan for long period (3-5 h). This conventional results over-cooked sugar, which leads to quality deterioration terms of both its physical and chemical properties. The current study aimed investigate processing into syrup alternative techniques such rotary...
This paper presents the field measured data of ambient temperature profile and heat stress occurrences directly underneath ground-mounted solar photovoltaic (PV) arrays (monocrystalline-based), focusing on different levels. A previous study has shown that a 1 °C increase in PV cell results reduction 0.5% energy conversion efficiency; thus, factor is critical, especially to farm operators. The transpiration process also plays an important role cooling green plants where, average, it could...
Summary Coconut ( Cocos nucifera L.) sugar is a more nutritious alternative source as compared to palm Borassus flabellifer ) and sugarcane Saccharum officinarum L . ). This work was aimed investigate the browning index (BI), vitamin profile antioxidant properties of coconut sap syrups, which were produced by different processing methods: rotary evaporation (RE), microwave (ME) open‐heat (OHE). The results obtained showed that syrup RE‐60 contained high activities [DPPH (36.71%) ABTS...
Photovoltaic farms in Malaysia are being developed tremendously as a form of supporting fossil fuel setbacks power generation. An important parameter the PV installation is (Watts) accumulated over sunlight retrieval. Considerable losses may arise from conversion, where efficiency typically 15% to 23%, with remainder becoming heat under array or panel installations. dissipation dependent on solar radiation, air convection and cell conduction. Dye Sensitized Solar Cell (DSSC) has been applied...
Pepper berry (Piper nigrum L.) is known as the king of spices and has sharp, pungent flavour aroma. In this study, physical properties (weight, dimensions, sphericity, volume, surface area, projected area) were measured, mass pepper berries Kuching variety at different maturity levels (immature, mature, ripe) was predicted using four models: linear, quadratic, s-curve, power. When models based on volume could be with maximum precision. The Quadratic model best fitted for prediction all...
Electrical energy is the highest set-up and operation cost in agricultural greenhouse crop production most of moderate or extreme temperature climate country. The consumes mostly for cooling, heating, ventilation, lighting, irrigation pumps, automation system. This paper proposed a theoretical approach conceptual design hybrid photovoltaic (PV) system by coupling PV panel thermoelectric generator (TEG) modules which to be applied an Automated Greenhouse project. improved efficiency compared...
The main challenge facing greenhouse designers is to achieve environment-appropriate greenhouses, especially in tropical regions. excess radiant energy transmitted into the predisposes plants photo-inhibition and consequently reduces crop production. Lately, photovoltaic (PV) modules are equipped as a rooftop minimize level of irradiation air temperature greenhouse, simultaneously improving its consumption. Nevertheless, due low irradiation, denser conventional PV internal shading would...