Low-order model for the simulation of a building and its heating system
- 1 August 2000
- journal article
- research article
- Published by SAGE Publications in Building Services Engineering Research and Technology
- Vol. 21 (3), 199-208
- https://doi.org/10.1177/014362440002100308
Abstract
Signifirant progress has been made in recent years on the development of modular and generic simulation programs for investigating the thermal behaviour of buildings and associated HVAC plant and controls. However, many of these programs are inflexible for the specific analysis of HVAC plant and control systems over short time scales. The nature of this inflexibility is discussed and a remedy is sought through the development of a low-order lumped-capacity thermal model of a building space. This is expressed as a linear time-invariant state-space description. A non-linear dynamic model of a hot water heating system with feedback control has been added and results under open-loop conditions are presented. The model has the advantage of simplicity and computational efficiency. Results are compared with field-monitored data obtained from a building in use and an excellent agreement between the two is demonstrated, though this comparison is restricted to a north-facing building space with high thermal capacity.Keywords
This publication has 7 references indexed in Scilit:
- Flow characteristics in circuits using three-port modulating control valvesBuilding Services Engineering Research and Technology, 1995
- Validation of dynamic thermal modelsEnergy and Buildings, 1988
- Advances in building energy simulation in the U.K. - The science and engineering research council's programmeEnergy and Buildings, 1988
- A model for the diffuse fraction of hourly global radiationSolar Energy, 1987
- Empirical validation of dynamic thermal computer models of buildingsBuilding Services Engineering Research and Technology, 1985
- Computer applications in the design of energy-conscious buildingsComputer-Aided Design, 1982
- The long-term average performance of flat-plate solar-energy collectors: With design data for the U.S., its outlying possessions and CanadaSolar Energy, 1963