Background

Installation shafts increasingly combine multiple piping and duct systems in a confined space, including cold water, heating lines, wastewater, and room exhaust air. This combination can lead to undesirable temperature increases in the cold water, creating hygiene and energy-related challenges. The project investigates the thermal interactions within such shafts.

Project Objectives

The objective of the study is to analyze temperature changes in cold-water pipes when there is no water draw over an eight-hour period. To do so, different simulation scenarios were carried out, systematically varying parameters such as pipe arrangement, insulation materials, and exhaust air temperatures.

Results

The study provides robust data on temperature increases in cold water in combined installation shafts. It shows under which conditions critical threshold values such as 25°C are reached. The findings provide a basis for optimizing future shaft designs and support planners in meeting hygiene standards.