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LisakhanyaSijeku/README.md

Hi, I'm Lisakhanya 👋

I'm a Chemical Engineering student with an interest in using programming, data analysis, and engineering modelling to solve technical problems.

My work spans chemical engineering design and simulation as well as data analytics, with experience using Python, SQL, Power BI, MySQL, and process simulation tools.

Featured Projects

🧪 Cumene Reactor Design

Engineering design and computational analysis of a fixed-bed reactor system for cumene production.

  • Modelled reaction equilibrium, kinetics, and reactor behaviour
  • Evaluated adiabatic reactor staging and operating constraints
  • Used Python for numerical analysis and engineering visualisation
  • Integrated process simulation results with reactor design calculations

Tools: Python · NumPy · Pandas · Matplotlib · COCO Simulator · Chemical Engineering

⚡ Renewable Electricity Analysis

An end-to-end data analytics project investigating global renewable electricity production.

  • Scraped renewable electricity data using Python
  • Cleaned and transformed the collected data for analysis
  • Built an interactive Power BI dashboard
  • Analysed renewable electricity production by country, energy source, and time

Tools: Python · Pandas · BeautifulSoup · Power Query · DAX · Power BI

📊 Layoffs SQL Analysis

Data cleaning and exploratory analysis of a global layoffs dataset using MySQL.

  • Removed duplicates and standardised inconsistent data
  • Handled missing values using SQL and self-joins
  • Analysed layoffs across companies, industries, countries, and funding stages
  • Used CTEs and window functions for rolling totals and yearly rankings

Tools: SQL · MySQL · CTEs · Window Functions · Data Cleaning · EDA

Technical Skills

Programming & Data: Python · SQL · Pandas · NumPy
Data Visualisation: Power BI · Matplotlib
Databases: MySQL
Engineering: Process Simulation · Reactor Design · Numerical Methods
Development: Git · GitHub · Visual Studio Code

Currently

I'm continuing to develop my skills at the intersection of chemical engineering, computation, and data analytics, while building projects that apply these tools to real engineering and data problems.

Pinned Loading

  1. price-drop-monitor price-drop-monitor Public

    Python tool that monitors online product prices, logs price data, and sends email alerts when user-defined thresholds are reached.

    Python

  2. rtd-modelling-zinc-extraction rtd-modelling-zinc-extraction Public

    Python

  3. cumene-reactor-design cumene-reactor-design Public

    Cumene reactor design using Python and COCO for equilibrium, kinetics, adiabatic staging and process simulation.

    Python

  4. renewable-electricity-analysis renewable-electricity-analysis Public

    End-to-end renewable electricity analysis using Python web scraping, Power Query, DAX, and Power BI.

    Python