Field experiments on energy consumption and thermal comfort in the office environment controlled by occupants’ requirements from PC terminal

Murakami, Yasuyuki; Terano, Masaaki; Mizutani, Kana; Harada, Masayuki; Kuno, Susumu

doi:10.1016/j.buildenv.2006.05.012

Cited by 95 publications

(45 citation statements)

References 1 publication

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“…At the same time, much research has been conducted to develop technology to support energy-saving behavior. An interactive system to use occupants' requests for controlling the air-conditioning system and providing a variety of feedback was developed by Murakami et al [16]. Al-Mumin et al [10] suggested that occupancy-sensed lighting and occupancy sensing setback thermostats should be encouraged.…”

Section: Introductionmentioning

confidence: 99%

Field investigation on consumer behavior and hydraulic performance of a district heating system in Tianjin, China

2009

Building and Environment

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Section: Introductionmentioning

confidence: 99%

Field investigation on consumer behavior and hydraulic performance of a district heating system in Tianjin, China

2009

Building and Environment

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“…To analyze the same issue, another important research effort concerned the awareness and cooperation of occupants, in order to achieve the best results in terms of energy saving [25]. In particular Murakami et al in [26] proposed a new system to control HVAC and lighting systems through implementation of occupants' requests. They found that an interactive control system based on occupants' requests was able to produce a 20% energy savings with respect to traditional air conditioning control strategies.…”

Section: Research Backgroundmentioning

confidence: 99%

“…In the upper floors there are more than 100 high-technology classrooms and research facilities, faculty and administrative offices, conference rooms, lounge areas, and several students' centers, such as additional computer labs and multipurpose rooms ( Figure 2). Due to this complexity and variety of devices, the Baruch College building (also named Newman Vertical Campus) was honored by the American Institute of Architects with the highest award that the College offers to an individual building [26]. The architectural characterization of the internal and external walls, the ceilings, the roof and the transparent envelope are described in Table 2, and the main energy equipment schemes are reported in Figure 3.…”

Section: Building Characterizationmentioning

confidence: 99%

A Building Energy Efficiency Optimization Method by Evaluating the Effective Thermal Zones Occupancy

2012

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Abstract:Building energy efficiency is strongly linked to the operations and control systems, together with the integrated performance of passive and active systems. In new high quality buildings in particular, where these two latter aspects have been already implemented at the design stage, users' perspective, obtained through post-occupancy assessment, has to be considered to reduce whole energy requirement during service life. This research presents an innovative and low-cost methodology to reduce buildings' energy requirements through post-occupancy assessment and optimization of energy operations using effective users' attitudes and requirements as feedback. As a meaningful example, the proposed method is applied to a multipurpose building located in New York City, NY, USA, where real occupancy conditions are assessed. The effectiveness of the method is tested through dynamic simulations using a numerical model of the case study, calibrated through real monitoring data collected on the building. Results show that, for the chosen case study, the method provides optimized building energy operations which allow a reduction of primary energy requirements for HVAC, lighting, room-electricity, and auxiliary supply by about 21%. This paper shows that the proposed strategy represents an effective way to reduce buildings' energy waste, in particular in those complex and high-efficiency buildings that are not performing as well as expected during the concept-design-commissioning stage, in particular due to the lack of feedback after the building handover. OPEN ACCESSEnergies 2012, 5 5258 Keywords: building energy efficiency; dynamic simulation and validation; post-occupancy evaluation; equipment operations and management

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“…Their results show 8-27% energy-saving potential if the VAV system with varying supplies air is used instead of the constant supply air system. Murakami et al [26] proposed a new energy management system to control the VAV system at the request of building occupants. A series of cooling experiments were conducted in an open-plan office where about 50 people worked.…”

Section: Introductionmentioning

confidence: 99%

Analysis of energy and carbon dioxide emission caused by power consumption

Sung

Tsai

Wang

et al. 2010

Int. J. Energy Res.

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SUMMARYThe main objective of this on-site study is to use a full-scale Heating, Ventilating, and Air-Conditioning (HVAC) system installed in an office building in Taiwan for comparing the power consumption, energy-saving, and carbon dioxide (CO 2 ) reduction of two different strategies for controlling the HVAC. These strategies are the Constant Volume (CV) system [Constant Air Volume1Constant-flow], and the Variable Volume (VV) system [Variable Air Volume 1Variable-flow]. The on-site experimental results indicate that average power consumptions are 164 kW for the CV system, and 88 kW for the VV system; the average electric current drops from 469 A for the CV system to 258 A for the VV system. Approximately 46% of the average energy-saving can be achieved if the HVAC system is operated as a VV system. Additionally, the reduced quantity of accumulated CO 2 emission varies from 67 to 3687 kg with 0.637 kg CO 2 kwh À1 emission factor during the office hours of 08:30 (a.m.)-17:00 (p.m.). The results demonstrate that switching the operation of an office building HVAC system from CV to VV will significantly enhance energy-savings and CO 2 reduction. This studywill offer useful information for evaluating an indoor environmental policy with respect to energy-savings and CO 2 emission reduction for office HVACs used in subtropical regions.

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Field experiments on energy consumption and thermal comfort in the office environment controlled by occupants’ requirements from PC terminal

Cited by 95 publications

References 1 publication

Field investigation on consumer behavior and hydraulic performance of a district heating system in Tianjin, China

Field investigation on consumer behavior and hydraulic performance of a district heating system in Tianjin, China

A Building Energy Efficiency Optimization Method by Evaluating the Effective Thermal Zones Occupancy

Analysis of energy and carbon dioxide emission caused by power consumption

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