Research

Research

Numerical investigation on the thermal performance of a hospital ward roof incorporating phase change material (PCM)

Contributors: Anika Rahman Riya, Rafe Md. Abu Zayed, Sumaiya Saima Sharmi.

This research aims at analyzing the feasibility of using different phase change materials for providing thermal comfort by reducing the temperature fluctuation in the hospitals of Bangladesh. Initially, the research group discovered potential findings using octadecane as the embedded PCM among the initial three PCMs through a finite difference numerical investigation work performed in the python programming language. In the aforementioned work, the weather condition of Patuakhali, a coastal region of Bangladesh, is chosen and weather data of seven consecutive days were considered as the initial condition for the simulation work.

The next phase of this work aims at simplifying the work through machine learning approaches. The team is working on a realistic approach using finite element analysis as the key tool to produce more accurate result than the previous work.

Modeling Convective Heat Transfer in Leather Drying Process.

• Contributors: Ariful Islam Nahid, Rafe Md. Abu Zayed

The Leather drying process involves several complex and time-consuming processes and a proper modeling approach is required for the proper estimation of time management and improvement of the process. In this work, leather is modeled as a porous wet material and standard heat and mass transfer equations are used to estimate the temperature profile and moisture distribution over the surface. A finite element approach using the COMSOL multiphysics software is adopted to model the natural and forced convective heat and mass transfer process.

Numerical Investigation on the Bio Heat Transfer in Human Breast Cyst

• Contributors: Wasifa Rahman,Rafe Md. Abu Zayed, Anika Rahman Riya,Sumaiya Sayma Sharmi

The thermal properties and behaviour of various malfunctioning tissues in human body varies as compared with normal tissues. Among various cancer tissues one which is commonly diagnosed in women is breast cyst (cancer causing fluid). The aim of present work is to develop one, two and three-dimensional computational models to study bio-heat transfer problems using finite difference method. First of all, a numerical model based on finite difference method is developed to study the thermal behaviour of human breast section embedded with cyst using two-dimensional cylindrical coordinate systems and Pennes’s bio-heat transfer equation.The effect of size, location and presence of multiple cysts on surface temperature is studied. Currently, the team is working towards the extension of this study in three dimensional domain.

Thermodynamic analysis of a biomass power plant using Pteris

• Contributors: Bashirunnisa Ananya, Rafe Md. Abu Zayed

In recent years, the use of biomass in power plant is gaining popularity due to its avalability and cost, specially in South Asia. So , search for potential biomass resources is crucial. In this work, the feasibility and potential of Pteris are investigated using thermodynamic approach.Keeping pollution reduction as the major objective, this work is focusing on investigating the proper working fluid and equipment arrangement of a Pteris fired power plant.

Implementation of a Mobile Dental Vehicle (MDV) service for the oral healthcare of the rural people of Barishal based on realistic data.

Contributors: Rafe Md. Abu Zayed, Ritu Ruman

For lack of dental health-care facilities, the rural people of Barishal suffer a lot. A mobile dental vehicle (MDV) can eliminate this problem. To implement this concept, a systemic assessment of rural oral healthcare, the scope of MDV application, cost consideration, etc., are necessary. This research focuses on building an MDV model assessing these criteria. This abstract of this research proposal was accepted at Bangladesh International Medical Students' Scientific Congress 2020.