Absorption of high concentration NH3/H2O in a plate heat exchanger

High concentration NH3/H2O is suitable for Kalina cycles used for the recovery of low grade heat. Plate heat exchangers (PHEs) are compact and reduce the charge of working fluid. This work investigates the absorption of NH3/H2O in a PHE, which has a weight concentration of 96%. Being different from normal absorption systems, the concentration...

Compliance checking on building models with the Gherkin language and Continuous Integration

In this paper we document our approach on applying Behaviour-Driven Development (BDD) and Continuous Integration (CI) from the software industry to the construction sector. We have provided a freely available open software toolset for the application of rules in the Gherkin syntax to an IFC building model. A prominent aspect of BDD and contrary...

Product-Service System Design Approach for the Base of the Pyramid Markets: Practical Evidence from the Energy Sector in the Brazilian Context

In Emerging Markets, the product-service system (PSS) design approach may represent a promising solution as a socially and environmentally sound path to economic development. In addition, the energy sector has a major role for the social-economic development and is central to poverty alleviation. Therefore, this study aims to analyse the...

Die Entmischung bei der Schüttung von Wellenbrecherkernen mit Hinterkippern

Rubble mound breakwaters are built since centuries to protect harbours and coastlines. Very basic construction methods were commonly used. The designed structure is mostly a resut of long-term non-scientific experience. Storm events are repeatedly leading to failure of these structures resulting in costly rehabilitation measures. The focus of...