|
|
On-going Research Projects (as PI) 11/2012 – 10/2015 ECS/UGC
(PI), 738.087K HK$, Enhancing the
thermal comfort and energy efficiency of air-conditioning systems for
large-scale rooms by integrating robust MIMO control and wireless sensor
network, No. 124012,
City University of Hong Kong Abstract: This research will investigate how to
improve the thermal comfort and energy efficiency of the air-conditioning
systems of large-scale rooms by capitalizing a wireless sensor network and advanced
control techniques. At least one sensor node will be installed at the
occupied level in each area served by a single VAV supply air box. All of the
sensor nodes and receivers constitute a wireless sensors network, which will be
deployed to measure and transfer the temperature to a new control scheme. The
new control scheme will be designed to realize a demand-based temperature
control, which will supply cooling only to areas with requirement and no
cooling will be supplied if the areas have no requirement (e.g. no occupants).
10/2012 – 03/2014 ECF
(PI), 442K HK$, Study the energy saving
opportunities and potentials of using wireless sensor network to monitor the
indoor climate of large-scale rooms in Hong Kong, No. 40/2011, City University of Hong
Kong Abstract: Wireless sensor network (WSN) for building applications has been
considered by many HVAC experts as an efficient tool to promote building energy
efficiency. However,
this conclusion has not been supported by enough experimental results in Hong
Kong (even worldwide). Currently, there is no WSN test bed constructed for
studying how to deploy WSN to enhance the building energy efficiency by
considering the building characteristics and the unique climate of Hong Kong.
Allowing for the importance of building energy saving for the
environmental protection and conservation in Hong Kong, this project
aims to build the first WSN test bed in Hong Kong to improve the indoor
climate monitoring performance for large-scale rooms. Most importantly, this
project will develop a systematic and analytic approach to explore the energy
saving opportunities and potentials offered by the WSN-based monitoring
system. 01/2012 – 12/2014 GRF/UGC (PI), 658.605K HK$, Development of a new approach of total cooling load based chiller sequencing control to deal with uncertainties systematically, No. 114011(9041665), City University of Hong Abstract: This research will investigate uncertainties
associated with total load based chiller sequencing
control, which may significantly affect the energy performance of chiller plants. Two types of uncertainties will be
considered: measurement uncertainties associated with the cooling load
estimation and model uncertainties associated with online estimation of chiller maximum cooling capacity. Data fusion will be investigated
and developed to reduce the measurement uncertainties. A model-based method
will be employed to online estimate the chiller
maximum cooling capacity; and uncertainties associated with the model will be
evaluated using field data. A method of online tuning the model parameters will
be developed to reduce the model uncertainties. Decision making under
uncertain information will be reviewed and a suitable approach will be
developed for chiller staging operations. Completed Research Projects (as
PI)
|
