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IKAGA Lab. KEIO
Research
Flowchart
②Building Scale
1
Research on buildings to improve energy saving performance and
to reduce environmental load by measuring surveys and field surveys
Evaluation of buildings in terms of energy
saving and health performance by
simulations and statistic analysis.
Understanding indoor environment states
and current lifestyles by measuring and
questionnaire surveys.
Simulation
Statistic Analysis
Renovation for
Energy Saving
Life Cycle
Carbon Minus
House
School
Construction
IKAGA Lab. KEIO
Comprehensive Assessment of School Environment
2
Background
Purpose
Suggestion of the effective and efficient improving school environment
Concerns about effects of school environment on students
1. Elucidate the effect of various school spaces on students’.
2. Proposal of an assessment system based on ‘CASBEE-school’
Comprehensive assessment of school environmental efficiency
considering students' health and learning performance
GymnasiumLibrary
ClassroomToilet
Schoolground
Corridor
HealthLearning
PerformanceB
uild
En
vir
on
me
nt
Qu
alit
yBuild Environment Load
IKAGA Lab. KEIO
Field Survey on Child’s Physical Activity in Elementary School
3
Background Decline of child’s physical ability and bipolarization of exercise habit
PurposeTo clarify the relationship between school environment
and child’s physical activity
Improvement of school environment in regard to child’s physical activity
Physical Activity of children
(**:p<0.05, *:p<0.10)
Number of days of playing outside during intermission
0.0
1.0
2.0
3.0
4.0
5.0
~1day
(n=10)
2,3
days
(n=10)
4,5
days
(n=16)
6,7
days
(n=18)
8,9
days
(n=7)
more than
10days
(n=6)
Number of days playing outside
during the survey(16days )
**
**
***
Activity a
moun
t[E
x]
School FacilitiesSchool yard area,
Class room arrangement
Program of School
Width of school yard,
Brightness, Dustiness
Satisfaction for Facilities
School Environment
Objective indicator Activity amount
Walking steps
How to spend intermission
Frequency of playing outside
Original programs to encourage
physical activity
IKAGA Lab. KEIO
Study on the Regionally Energy Use
Background
Objective Cost – Benefit assessment of “Smart Energy Network”
taking business continuity into account in case of emergency
Visualizing each benefit will give support to promote installing SEN
◆Cost – Benefit Assessment Result of installing “Smart Energy Network”
To install “Smart Energy Network” is highly required as a disaster countermeasures
0
1
2
3
Initial cost(obtained by dividing installation cost
by durable years (15))
Maintenance cost
Utility expenses’ reduction
Benefit of possibility of business continuity in case of emergency
Cost Benefit
Total cost0.16
Calm
ative C
ost
or
Benefit
(billion y
en /
year)
B/C= 0.90[-]
B/C= 1.4[-]
Total benefit0.23
* Smart Energy Network:Optimum energy system of a regional basis based on “Local production for local consumption” of heat and electricity 4
IKAGA Lab. KEIO
Improvement of Resilience Performance by Introducing a Smart Energy Network
5
Background
・Quantification of business continuity performance
・Estimation of improvement of resilience performance by introducing
a Smart Energy Network (SEN)
The promotion of a Community Energy System with the supply disruptions of energy
Estimation of improvement of resilience performance by introducing a Smart Energy Network
Conducted a questionnaire survey Case Study
Minato-ku,Tamachi surrounding area
⇒Quantification of business continuity performance
Purpose
In the entire district
110 million yen a year
Effect of loss avoidance by introducing SEN
IKAGA Lab. KEIO
-3.24 [t-CO2]
Study for the net zero energy house realization(1/2)
6
-100
0
100
200
300
400
500
600
Accu
mu
lation
CO
2d
isch
arg
e
(LC
CO
2)
[t-C
O2/h
ou
se]
Achievement of LCCM
◆ Result of LCCO2 estimation
Case
General
house
(old-energy
saving
standard)
Keio Co-Evolving house
Additional-
measures
・natural material
・insulation reinforcementSolar heat utilization
system
Control system introductionSolar panel
(3.5kW)
◆Result of temperature simulation
Indoor temperature 28℃+ The ventilation
⇒Reduce the risk of heat stroke
Realization of energy-saving and comfortable net zero energy house
26 32[℃]28 30
Disposal
Energy using
Reform
New construction
IKAGA Lab. KEIO 7
▲Simulation
▼Crowded with visitors
▲Field Validation
▲Wind Velocity Measurement
▲The study is continued
▼Wooden Interior
Study for the net zero energy house realization(2/2)