Optimization of a District Heating Network with the focus on heat loss

In the Netherlands most houses and buildings are connected to a gas network since the nineteen seventies to heat our houses and cook. In march of this year the new Dutch government announced that to meet the climate accord of Paris all dutch household should be of the gas net in 2030. To do this multiple alternatives to heat homes are available...

Solving Vapor-Liquid Flash Problems Using Artificial Neural Networks

Vapor-liquid phase equilibrium (flash) calculations largely contribute to the total computation time of many process simulation models. As a result, process simulations, especially dynamic cases, are limited in the amount of detail that can be included due to time restrictions. In addition, under certain conditions flash calculations can fail to...

Generalized Additive Models on Estimation of Newbuilding Prices and Lead Times for Bulk Carriers

When placing orders of new vessels, shipowners are most concerned about two things: how much they need to pay and how long they need to wait, and the estimation of newbuilding prices and lead times for new vessels is important to both shipowners and shipbuilders. This thesis introduces the generalized additive model (GAM) as the specific...

Absorption of ammonia in an ammonia - ionic liquid solution: A detailed experimental and numerical study of the absorption process

Excessive consumption of non - renewable resources in the recent times has negative effects on the environment, one of the important of which include global warming. This suggests an urgent need for adaption to the sustainable use of the resources, for which the thermal technologies show a lot of scope. Absorption heat pump is a type of heat...