Thermal Comfort for Office Occupants in Air Temperature of 28℃ in Summer

Okuma, Ryoko; Ishino, H.; Nakayama, Satoshi

doi:10.3130/aije.72.31_4

Cited by 8 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The most well-known catchphrase of the COOL BIZ campaign is "28 C," which is the upper limit to invoke cooling, set by the "Act on Maintenance of Sanitation in Buildings" [3]. The effect of removing jackets and ties was reported to be equivalent to lowering air temperature by 2 K [4]. The Energy Conservation Centre, Japan (ECCJ) reported that 1.2% of the annual energy consumption of an HVAC (heating, ventilation, and air conditioning) system can be saved by raising the temperature set point during summer from 26 C to 28 C. Since the annual primary energy consumption of a typical office building in Japan is 2225 MJ/ (m 2 $yr), the reduction under the COOL BIZ campaign was estimated to be 26.7 MJ/(m 2 $yr) [5].…”

Section: Introductionmentioning

confidence: 99%

Workplace productivity and individual thermal satisfaction

Tanabe

Haneda

Nishihara

2015

Building and Environment

111

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Workplace productivity and individual thermal satisfaction

Tanabe

Haneda

Nishihara

2015

Building and Environment

111

View full text Add to dashboard Cite

“…Accumulated satisfactory hours when indoor room temperature is below 25℃ and 28℃, which can guarantee a barely satisfactory environment (Okuma et al, 2007) as to save energy, are utilized for the determination of non-air-conditioning period. From Figure. 6, we can conclude that hours when indoor temperature is within 25℃ can be increased from 1000 to 3000 hours by applying PDSF in office room.…”

Section: Effect Of Extending Non-air-conditioning Periodmentioning

confidence: 99%

A state-space based method to predict thermal performance of pipeembedded double skin façade: case study in Guangzhou

Yan¹,

Lv²,

Shen³

et al. 2018

Healthy, Intelligent and Resilient Buildings and Urban Environments

View full text Add to dashboard Cite

Pipe-embedded double skin facade, which arranges pipes in shading device, is an alternative to reduce indoor demand and save energy. To simulate annual performance of this system, a simplified approach based on optical and thermal property is proposed at first, in which dynamic performance is acquired through state-space method. Then the model is validated with former investigation and shows good accuracy. Indoor room temperature with the pipe-embedded double skin façade is analyzed under different types of room in Guangzhou at last. Results show that the pipe-embedded double skin façade could guarantee a barely satisfactory indoor environment where indoor heat gain is small in most time. Besides, superiority would be obvious when solar radiation is strong, indicating the applicability in some typical region with abundant sunshine. KEYWORDS natural energy, pipe-embedded window, double skin facade, heat gain, free-running temperature NOMENCLATURE DSF double skin façade PDSF pipe-embedded double skin façade CFD computational fluid dynamics LMTD logarithmic mean temperature difference

show abstract

Analysis of brain activity during local hot-cold stimulus using near-infrared spectroscopy (Analysis of brain activity during pain stimulus by cold stimulus)

Hou

Watanuki

Sotoike

2015

Transactions of the JSME (In Japanese)

View full text Add to dashboard Cite

Methods such as the Predicted Mean Vote and Standard New Effective Temperature were developed to evaluate thermal comfort. However, radiation and convection of heat due to factors such as sunlight or air cycle are strong in indoor environments. Moreover, the thermal environment in such indoor environment is non-uniform and locally inhomogeneous, which makes evaluation thermal comfort difficult. We aim to evaluate the local thermal environment by analyzing brain activity. The final goal is to develop an air conditioning control system in non-uniform and locally inhomogeneous thermal environment by brain activity. In this paper, we describe analysis of brain activity during local cold stimulation. We measured oxyhemoglobin (oxyHb) levels in the prefrontal cortex and the primary somatosensory cortex while subjects touched aluminum plates that were cooled or heated to different temperatures. The results show that oxyHb changes in the prefrontal cortex vary according to the temperature of the aluminum plates.

show abstract

Thermal Comfort for Office Occupants in Air Temperature of 28℃ in Summer

Cited by 8 publications

References 2 publications

Workplace productivity and individual thermal satisfaction

Workplace productivity and individual thermal satisfaction

A state-space based method to predict thermal performance of pipeembedded double skin façade: case study in Guangzhou

Analysis of brain activity during local hot-cold stimulus using near-infrared spectroscopy (Analysis of brain activity during pain stimulus by cold stimulus)

Contact Info

Product

Resources

About