Heat exchangers with unique specifications are administered in the food industry, which has expanded its sphere of influence even to the automotive industry due to this feature. It has been used for convenient maintenance and much easier cleaning. In this study, two different nanomaterials, such as Cu-based nanoparticles and an organic nanoparticle of Chloro-difluoromethane (R22), were used as nanofluids to enhance the efficiency of heat transfer in a turbulator. It is simulated by computational fluid dynamics software (Ansys-Fluent) to evaluate the Nusselt number versus Reynolds number for different variables. These variables are diameter ratio, torsion pitch ratio, and two different nanofluids through the shell tube heat exchanger. It is evident that for higher diameter ratios, the Nusselt number has been increased significantly in higher Reynolds numbers as the heat transfer has been increased in turbulators. For organic fluids (R22), the Nusselt number has been increased significantly in higher Reynolds numbers as the heat transfer has been increased in turbulators due to the proximity of heat transfer charges. At higher torsion pitch ratios, the Nusselt number has been increased significantly in the higher Reynolds number as the heat transfer has been increased in turbulators, especially in higher velocities and pipe turbulence torsions.

/pdf/use-of-organic-and-copper-based-nanoparticles-on-the-47fe3ifz4v.pdf

Use of Organic and Copper-Based Nanoparticles on the Turbulator Installment in a Shell Tube Heat Exchanger: A CFD-Based Simulation Approach by Using Nanofluids

Solar power, being a noteworthy wellspring of sustainable and renewable energy source, is critical in satisfying the future vitality need. However, collection of fine particles, dust and water from the air above the solar panel will prevent sunlight from reaching the surface of the solar cell. This is a noteworthy issue since the light block materials present as external impedance that lower the solar based photovoltaic execution. In this study, a flexible cleaning gadget is developed, which ventures to every part of the whole length of the solar panel. The technique presented is also able to monitor the electrical power generated from the solar cells and instructions for cleaning solar cell photovoltaic surfaces can be activated when required by using Internet of Things (IOT) mobile applications. The results revealed that the external resistance could reduce the performance of the solar panel up to 22%.

Design and Development of Smart Self-Cleaning Solar Panel System

This paper is to describe the implementation of temperature monitoring system for large halls which helps in improving the condition of the surrounding temperature by monitoring the temperature readings using a specified portal. This system includes multiple temperature sensing devices located in different temperature monitoring zones to produce temperature output readings proportional to the corresponding zones. The temperature monitoring system automatically and sequentially collects and records temperature output readings into the database. Besides that, a portal then displays the temperature readings generated by the temperature sensing devices proportional to the corresponding zones together with the technician details that are in-charged for those particular devices. In addition, the portal also displays colour status bars that differentiates the surrounding temperature whether its too hot, too cold or its at optimum state. Being said by that, if the temperature readings exceeds its threshold limits, alert notifications will be sent to the technician’s mobile phone through the BLYNK Application.

Large Hall Temperature Monitoring Portal

Nowadays, vaccination for kids has been a necessity for them and it is one of the responsibilities of parents to give all the vaccines for their appropriately on the right date as well. In order to that, the objective of this is project is to make an easier way of reminder for the parents to have an online vaccination planner website. Other than that, it also helps to keep record of the vaccinations which has been given earlier and it’s easier to view the record anytime. Moreover this web-based has google cloud backup as an extra feature. The methodology that is used to develop this web-based system is by using Agile Unified Process (AUP) it consists of four phases which are inception, elaboration, construction and transition. As an outcome of the observation and survey, there are few difficulty takes place and the resolution can be done by developing this Parental Reminder and Planner for Children Vaccination. According to the observation, most of the users are keeping record of the vaccination given to their kids in a notebook or diary and they seems not to have any reminder for the upcoming vaccines. As a conclusion, by developing this Kids Vaccination Planner it will become a good initiative to help the parents to keep track of their kids vaccines and this web-based system also have some enhancement to be made for the future works.

Parental Reminder and Planner for Children Vaccination

Theoretical analysis for miscellaneous soliton waves in metamaterials model by modification of analytical solutions

Nowadays, Sudden Infant Death Syndrome (SIDS) is one of the causes of infant mortality that have been taken seriously. This is due to the baby is having difficulty in breathing while in prone position sleeping. Moreover, this mostly occurs during the unsupervised period especially at night when both parents are sleeping. Moreover, accidentally suffocation strangulation in bed (ASSB) is another cause that needs to look into seriously. Therefore, an effective sudden infant death syndrome baby alert system must be developed to curb and shorten respond time to save the baby from drowning. This paper proposes a conceptual framework with two (2) stages that consist of monitoring the body orientation of the baby as well as the heart rate of the baby, send the immediate alert to parents. By having an effective real-time SIDS baby alert system, fast response can be carried out in order to save the baby and raise awareness about the dangers of SIDS towards Malaysians’ parents.

Afiq Aiman Zamri

Papers

Conceptual Framework for SIDS Alert System