Publications

Learning building occupants’ indoor environmental quality complaints and dissatisfaction from text-mining Booking.com reviews in the United States

Learning building occupants’ indoor environmental quality complaints and dissatisfaction from text-mining Booking.com reviews in the United States

Nan Ma, Qi Zhang, Fabricio Murai, William W. Braham, Holly W. Samuelson

The fact that “humans are effective sensors” and are inclined to report their impressions can be leveraged to collect data for a substantial number of buildings. This paper presents a text-mining approach to reveal the relationships between environmental conditions and occupant dissatisfaction in large populations. With a set of 1.2 million Booking.com open-ended reviews (i.e., 71,665 IEQ reviews) of temporary residences (e.g., hotels), we identified the prevalence of IEQ complaints, investigated the climate distributions and seasonal trends of IEQ complaints, and quantified the social benefits of IEQ in economic values.

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Blockchain + IoT sensor network to measure, evaluate and incentivize personal environmental accounting and efficient energy use in indoor spaces

Blockchain + IoT sensor network to measure, evaluate and incentivize personal environmental accounting and efficient energy use in indoor spaces

Nan Ma, Alex Waegel, Max Hakkarainen, William W. Braham, Lior Glass, Dorit Aviv

Electric demand flexibility in buildings is highly dependent on occupant behavior. Evaluating and incentivizing these behaviors can provide grid-responsive support and encourage demand response (DR) participation. To achieve these goals, we developed an infrastructure for connecting Internet of Things (IoT) sensors to a distributed ledger (blockchain network) for long-term monitoring of energy and environmental performance. This Blockchain + IoT Network (BIN) uses Raspberry Pi minicomputers as platforms for connecting sensors to a blockchain network, to provide and analyze real-time indoor environmental quality (IEQ), energy, and carbon intensity data.

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Optimizing the Passive House Planning Package simulation tool: A bottom-up dynamic approach to reduce building performance gap

Optimizing the Passive House Planning Package simulation tool: A bottom-up dynamic approach to reduce building performance gap

Ye Kang, Nan Ma, Victor Bunster, Victor W-C Chang, Jin Zhou

The Passive House Planning Package (PHPP) simulation tool is the only authorized software in Australia for the Passivhaus (PH) certification. Despite its key role in this certification scheme, previous studies have reported significant gaps between the simulated and actual performance. To address this limitation, this study introduces a bottom-up approach to building performance simulation based on a dynamic method combined with advanced appliance profiles. This study uses two-year monitored data in a PH-certified student accommodation building in Australia and validates the proposed bottom-up approach in both annual and monthly granularity.

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The Usability Study of a Proposed Environmental Experience Design Framework for Active Ageing

The Usability Study of a Proposed Environmental Experience Design Framework for Active Ageing

Masa Noguchi, Nan Ma, Catherine Mei Min Woo, Hing-wah Chau, and Jin Zhou

Growing ageing population today may be necessitating building design decision makers to reconsider the indoor environmental quality (IEQ) standards in a way that accommodates senior occupants’ diverse and individual needs and demands. An experience design approach to rationalising and individualising end-user experience on how to utilise tangible products may serve to reflect user perceptions...

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Design lessons from three Australian dementia support facilities

Design lessons from three Australian dementia support facilities

Hing-wah Chau, Clare Newton, Catherine Mei Min Woo, Nan Ma, Jiayi Wang, Lu Aye

There is a significant increase in the number of people with dementia, and the demand for residential support facilities is expected to increase. Providing an appropriate living environment for residents with dementia, which can cater for their specific needs is crucial...

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Structuring the Environmental Experience Design Research Framework through Selected Aged Care Facility Data Analyses in Victoria

Structuring the Environmental Experience Design Research Framework through Selected Aged Care Facility Data Analyses in Victoria

Nan Ma, Hing-wah Chau, Jin Zhou, Masa Noguchi

Humans relate to the living environment physically and psychologically. Environmental psychology has a rich developed history while experience design emerged recently in the industrial design domain. Nonetheless, these approaches have barely been merged, understood or implemented in architectural design practices. This study explored the correlation between experience design and environmental psychology...

Patent CN106593008A: Ecological recyclable large-scale building group energy system

Patent CN106593008A: Ecological recyclable large-scale building group energy system

Nan Ma and Kai She

The invention relates to an ecological recyclable large-scale building group energy system which can be applied to a plurality of building groups in cities. Each building group includes a plurality of buildings. Solar cell panels and solar heat collectors are paved on the roofs and/or walls of the buildings; storage batteries and heat-insulating water storage tanks are arranged.,,

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