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Saving energy in residential and commercial buildings is of great interest due to diminishing resources. Heating ventilation and air conditioning systems, and electric lighting are responsible for a significant share of energy usage, which makes it desirable to optimise their operations while maintaining user comfort. Such optimisation requires accurate(More)
Technological advances in real-time data collection, data transfer and ever-increasing computational power are bringing simulation assisted control and on-line fault detection and diagnosis closer to reality than was imagined when Building Energy Management Systems were introduced in the 1970s. This paper describes the development and testing of a prototype(More)
A wide range of events in buildings occur at sub-hourly frequencies. Notable examples include daylight-sensing control and manual adjustment of blinds and lights in response to sub-hourly illuminance variations. Such short-term changes can produce notable shifts in instantaneous solar and equipment loads, in turn affecting electrical energy demand. Although(More)
There are two main issues to be resolved in order that design tools can be used in cooperative mode, each communicating with the other. Firstly, there is a need to put in place a consistent product model of a building and its systems from which disparate design tools can obtain their inputs and return their outputs. Secondly, there is the requirement to(More)
  • J Ash, J Hand, Ed Category, Standards Track, At&t A Malis, Ed Verizon Communications
  • 2007
This specification defines how to use Multi-Protocol Label Switching (MPLS) to route Header-Compressed (HC) packets over an MPLS label switched path. HC can significantly reduce packet-header overhead and, in combination with MPLS, can also increases bandwidth efficiency and processing scalability in terms of the maximum number of simultaneous compressed(More)
As introduced in a paper in Building Simulation ’93, the training of users of simulation based thermal performance assessment tools is central to the efficacy of such tools within professional practice. A willstructured training facility can act as a ‘virtual laboratory’ for researchers and students. It is now possible to report on the results of the(More)
  • J W Hand
  • Frontiers of medical and biological engineering…
  • 1992
High quality thermometry is needed in hyperthermia to (1) ensure safe delivery of adequate therapy and (2) provide the quantitative information needed to develop prognostic parameters which will aid research into planning and dosimetry. Currently, only invasive thermometry which is subject to several sources of artifact is available to address these(More)
Progressive design practices are increasingly cognisant of the potential of building energy simulation to assist the delivery of energy efficient, sustainable buildings. However, the success of any building performance assessment hinges on the capabilities of the tool; the collective competences of the team formed to apply it; and, crucially, the existence(More)