Effect of Power Saving Measures on Comfort, Productivity and Energy Conservation

Iwahashi, Yuko; Tanabe, Shin‐ichi; Tsushima, Sayana; Nishihara, Naoe; Hiraoka, Masaya; Komoda, Hideharu; Tabuchi, Seiichi

doi:10.3130/aije.79.901

Cited by 4 publications

(3 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But how can we transition from current summertime practices (~22°C) to temperatures more closely aligned with the PMV/PPD comfort model recommendations of 24~27°C? The CoolBiz and Setsuden campaigns (Iwahashi et al, 2014) are precedents for abrupt changes to setpoint temperatures. But given the hypersensitivity of building occupants to changes in their work environments, a sudden step-change in summertime setpoints by as much as 5°C would very likely elicit complaints.…”

Section: Pmv and The Adaptive Model In Air Conditioned Buildingsmentioning

confidence: 99%

Nudging the adaptive thermal comfort model

Parkinson

Dear

Brager

2020

Energy and Buildings

146

View full text Add to dashboard Cite

The release of the largest database of thermal comfort field studies presents an opportunity to perform a quality assurance exercise on the first generation adaptive comfort standards (ASHRAE 55 and EN15251). The analytical procedure used to develop the ASHRAE 55 adaptive standard was replicated on 60,321 comfort questionnaire records with accompanying measurement data. Results validated the standard's current adaptive comfort model for naturally ventilated buildings, while suggesting several potential nudges relating to the adaptive comfort standards, adaptive comfort theory, and building operational strategies. Adaptive comfort effects were observed in all regions represented in the new global database, but the neutral temperatures in the Asian subset trended 1-2 °C higher than in Western countries. Moreover, sufficient data allowed the development of an adaptive model for mixed-mode buildings that closely aligned to the naturally ventilated counterpart. We present evidence that adaptive comfort processes are relevant to the occupants of all buildings, including those that are air conditioned, as the thermal environmental exposures driving adaptation occur indoors where we spend most of our time. This affords significant opportunity to transition air conditioning practice into the adaptive framework by programming synoptic-and seasonal-scale set-point nudging into building automation systems.

show abstract

Section: Pmv and The Adaptive Model In Air Conditioned Buildingsmentioning

confidence: 99%

Nudging the adaptive thermal comfort model

Parkinson

Dear

Brager

2020

Energy and Buildings

146

View full text Add to dashboard Cite

show abstract

“…In addition, support for demand response (DR) 4 and other new energy‐saving functions is becoming a must. On the other hand, excessive energy‐saving measures may have adverse effect on the work environment of building tenants; hence, an urgent need for implementation of sophisticated algorithms to balance energy saving and comfort 5 …”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, excessive energy-saving measures may have adverse effect on the work environment of building tenants; hence, an urgent need for implementation of sophisticated algorithms to balance energy saving and comfort. 5 In this context, building energy management systems (BEMSs) are increasingly introduced into small and medium-sized buildings. The spread of BEMSs has led to explosive diversification of building operation patterns, equipment and systems (e.g., concentrated or distributed heat source schemes for air conditioning).…”

Section: Introductionmentioning

confidence: 99%

BEMS architecture and service modules for realizing sophisticated algorithms

Mega,

Murakami,

Kushiro

2023

Elect Comm in Japan

View full text Add to dashboard Cite

There is a growing interest to introduce energy‐saving algorithms which balance energy efficiency with residents’ comfortability into a building energy management system (BEMS). However, the following issues hinder penetration of the energy‐saving algorithms into markets: difficulties both in embedding the algorithms into the BEMS, and in turning the algorithms suitably to fit varieties of installed equipment in each building. In this paper, A BEMS on micro‐service architecture, and software service modules for the BEMS, were proposed. The micro‐services architecture improves flexibility to introduce newly developed energy‐saving algorithms into the BEMS and software service modules manipulate whole roles (modeling, planning, doing, and action) required for tuning the algorithms on‐line to fit the algorithms to each building. Each software service module was implemented and integrated as elements of BEMS on micro‐service architecture. The BEMS on micro‐service architecture was applied to an actual building for evaluation, and its availability was confirmed through the field test.

show abstract

Study on air-conditioning control system considering individual thermal sensation

Tanaka

Wada

Kikuchi

et al. 2019

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

Increased satisfaction with thermal environments in office significantly affects workplace productivity. Conventional air-conditioning systems are intended to achieve a uniform thermal environment across the entire air-conditioned space. However, due to differences in thermal sensation among individuals, it is difficult to improve occupants’ thermal satisfaction merely by providing a uniform thermal environment. In this study, we developed an air-conditioning system called the Smart Wellness Control System with the aim of realizing air conditioning that responds to individual variance in thermal satisfaction. The system collects data from sensors about the locations of individual occupants and the thermal environments to which they are exposed, records this data together with their votes on their thermal sensation, and modifies and learns their comfort indices accordingly to control the speeds of personal fans and the air temperature setting. We conducted a questionnaire survey of occupants in an actual office building equipped with this system; the results indicated that use of the Smart Wellness Control System increased their satisfaction with the thermal environment by about 50% and increased their productivity by about 25%.

show abstract

Effect of Power Saving Measures on Comfort, Productivity and Energy Conservation

Cited by 4 publications

References 2 publications

Nudging the adaptive thermal comfort model

Nudging the adaptive thermal comfort model

BEMS architecture and service modules for realizing sophisticated algorithms

Study on air-conditioning control system considering individual thermal sensation

Contact Info

Product

Resources

About