Review of automated fault detection and diagnostic tools in air handling units

Bruton, Ken; Raftery, Paul; Kennedy, B. W.; Keane, Marcus; O’Sullivan, Dominic

doi:10.1007/s12053-013-9238-2

Cited by 69 publications

(33 citation statements)

References 39 publications

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“…Many of these adversely affected the results (of both the baseline and intervention control strategies) until the faults were identified and resolved prior to the start of the study period. For future projects, we recommend using automated fault detection methods for AHUs and VAV terminal units [29][30][31][32][33], to identify and resolve these issues prior to implementing either supply air temperature reset strategy.…”

Section: Practical Implementation Notesmentioning

confidence: 99%

Evaluation of a cost-responsive supply air temperature reset strategy in an office building

Raftery

Jin

et al. 2018

Energy and Buildings

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This paper describes a new supply air temperature control strategy for multi-zone variable air volume systems. We developed the strategy with the intent that it is simple enough to implement within existing building management systems. At 5-minute intervals, the strategy estimates the cost of fan, heating and cooling energy at three different supply air temperatures (current, higher, lower), and chooses the one with the lowest cost as the setpoint. We then implemented this strategy in a seven floor, 13,000 m 2 office building and compared the energy costs to the industry best practice control strategy in a randomized (daily) controlled trial over a 6-month period. We showed that the new control strategy reduced total HVAC energy costs by approximately 29%, when normalized to the typical annual climate data for this location and operating only during typical office hours. These findings indicate that the current industry best practice control strategy does not find the optimal energy cost point under most conditions. This new control strategy is a valuable opportunity to reduce energy costs, at little initial expense, while avoiding more complex approaches, such as model predictive control, that the industry has been hesitant to adopt. We describe the new control strategy in language common to the industry (see sequence of operations included as supplemental material) so that readers may easily specify and implement this immediately, in new construction or controls retrofit projects.

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Section: Practical Implementation Notesmentioning

confidence: 99%

Evaluation of a cost-responsive supply air temperature reset strategy in an office building

Raftery

Jin

et al. 2018

Energy and Buildings

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“…Bruton et al detailed the main methods and subcategories of FDD while also outlining the advantages and disadvantages of each along with their potential for market implementation in the short to medium term (Bruton et al 2013). Based on their research, Bruton et al arrived at the conclusion that if it were possible to combine the most applicable FDD methods into a single method that took key operational parameters into account, one would ensure that the least possible quantity of data was required for effective AFDD.…”

Section: How Can Afdd Tools Improve Ahu Maintenance and Hence Performmentioning

confidence: 99%

“…As no AHU-specific AFDD tool has still to proliferate through the building services sector due a number of issues ranging from excessive setup times to their failure to cross the proprietary system divided with a generic cross platform solution (Bruton et al 2013), Bruton et al developed a new rule-based expert system AFDD tool for AHUs named AHU Intelligent Fault Optimisation or "AHU InFO" (Bruton et al 2014). The development and overlying architecture of the AHU InFO tool is detailed in section AHU InFO Development of this paper, before its effectiveness at detecting and diagnosing AHU faults is compared to that of APARs in the section Comparison Study using both derived static faults and logged field test data across a number of different AHUs on various pilot industrial manufacturing sites.…”

Section: How Can Afdd Tools Improve Ahu Maintenance and Hence Performmentioning

confidence: 99%

Comparative analysis of the AHU InFO fault detection and diagnostic expert tool for AHUs with APAR

et al. 2014

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The contribution of buildings towards total worldwide energy consumption in developed countries is between 20 and 40 %. This is expected to rise by an average rate of 1.5 % per annum over the next 20 years. Heating ventilation and air conditioning (HVAC) and more specifically air handling units (AHUs) energy consumption accounts on average for 40 % of an industrial site's energy consumption. Building systems rarely perform as well in practice as anticipated during design due to improper equipment selection or installation, lack of commissioning, or improper maintenance to cite but a few reasons. Studies have indicated that 20-30 % energy savings are achievable by recommissioning HVAC systems, and more specifically AHU operations, to rectify faulty operation.

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“…In 2011, the International Organization for Standardization (ISO) produce the publication ISO 50001:2011 BEnergy management systems: Requirements with guidance for use^ (Fiedler and Mircea 2012). Generally, standards for energy management can potentially support energy management in production processes and the creation of mechanisms to measure, control and continuously improve energy efficiency (Bruton et al 2014;Bunse et al 2011). Böttcher and Müller (2014) stated that ISO 50001 has a narrow focus on energy and carbon efficiency.…”

Section: Introductionmentioning

confidence: 99%

Toward greener supply chains: is there a role for the new ISO 50001 approach to energy and carbon management?

et al. 2016

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Considering the increased interest of stakeholders in climate change and a low-carbon economy, this article has investigated and identified several contributions of the ISO 50001 in support of the adoption of green supply chain management (GSCM). In this context, energy efficiency and reduced CO 2 emissions are critical. Therefore, the proposal for and the requirements of ISO 50001 can generate useful insights on how to structure green and low-carbon supply chains, hence helping to address the challenges posed by climate change.

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Review of automated fault detection and diagnostic tools in air handling units

Cited by 69 publications

References 39 publications

Evaluation of a cost-responsive supply air temperature reset strategy in an office building

Evaluation of a cost-responsive supply air temperature reset strategy in an office building

Comparative analysis of the AHU InFO fault detection and diagnostic expert tool for AHUs with APAR

Toward greener supply chains: is there a role for the new ISO 50001 approach to energy and carbon management?

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