Master's Thesis

Linde GmbH, Linde Engineering

**Master's Thesis - Numerical Simulation of Instabilities in Water Bath Vaporizers (M/F/d)**

Pullach nearby Munich, Germany | req17736

**What you will enjoy doing**
- We are currently looking for a highly motivated student for an exciting and challenging project in the field of two-phase flow instabilities.
- Water bath vaporizers (WBV) are used in cryogenic and petrochemical plants to vaporize liquefied gases such as oxygen, nitrogen, argon, ethylene or propylene by using hot water. They are usually part of the plant back-up system which comes into operation when there is shortage of product from the main plant.
- The evaporation of cryogenic liquids inside WBV involves a complex interplay of several different types of boiling mechanisms, prone to two-phase flow instabilities. These can reach large amplitudes within a short time, which is critical not just from an operational but also safety point of view.

In this Master Thesis you will
- Analyze characteristics of two-phase flow instabilities in WBV
- Use in-house developed numerical simulation model to solve mass, momentum and energy balances in 1D focused on identifying main influence parameters for equipment design
- Conduct studies on influence parameters to derive basic guidelines for equipment design
- Evaluate potential countermeasures based on their effectiveness and cost impact
- Receive supervision from experts in Equipment Process Design and Computational Mechanics department

**What makes you great**
- You are a student of process engineering, chemical engineering or mechanical engineering or similar with very good study achievements
- You have advanced knowledge in heat and mass transfer, fluid mechanics and thermodynamics
- Experience in numerical modeling and simulation as well as very good programming skills in Matlab, Python, C/C++, or similar is a must
- Knowledge in simulating multi-phase flows with heat and mass transfer using CFD (OpenFoam and/or Ansys Fluent) is beneficial
- You have an interdisciplinary thinking, commitment and ability to work independently

**Why you will love working with us**

At Linde we identify ourselves with our products - either working for the technical or medical gases business. Being a company with a long tradition in the gases business, we not only care about our customers and high-quality products, but most importantly about our employees. While working with us, expect a safe workplace, high safety standards and a true commitment from our managers to safety.

**What we offer you**

We offer you not only an attractive compensation (metal industry tariff) and other social benefits, but also the possibility for further professional and personal education. Furthermore, you can expect great location conditions, an excellent company canteen with a wide range as well as an extensive health management with sports classes and action days.

At Linde, the sky is not the limit. If you’re looking to build a career where your work reaches beyond your job description and betters the people with whom you work, the communities we serve, and the world in which we all live, at Linde, your opportunities are limitless. Be Linde. Be Limitless.

**Have we inspired you? Let´s talk about it**

**Your contact person**

Linde GmbH, Linde Engineering
Monika Kobler
+49 8621 85 6775

Linde GmbH, Linde Engineering acts responsibly towards its shareholders, business partners, employees, society and the environment in every one of its business areas, regions and locations across the globe. The company is committed to technologies and products that unite the goals of customer value and sustainable development.