Simulating life cycle cost for indoor climate systems

The indoor climate system, which serves a building with a proper indoor air quality and thermal comfort, has been predominantly designed based on the initial cost. A life cycle approach could improve both the economic and environmental performance. For example, the energy use could decrease. There has been a lack of knowledge, models and simulation tools for determining the life cycle cost (LCC) for an indoor climate system. The objective of this paper is to present a model for calculating the LCC for indoor climate systems. Focus is on indoor climate systems for premises and dwellings. Prices are from Sweden. The model is a result from a research project reported in a doctoral thesis where the LCC model is presented in detail and input data and indoor climate system design is analyzed.