PROGRAM DAY ONE, TUESDAY 26TH OCTOBERSESSION A – WATER DEMAND AND SUPPLY I
Session Chair: Bart Bleys
7am (UK)

Opening Remarks – Professor Lynne Jack

7.10am (UK)

Verification on the dynamic calculation method for cold and hot water supply loads,
and a simple calculation method for the instantaneous maximum flow rates
Saburo Murakawa, Daisuke Ikeda, Kazuhiko Sakamoto, Hiroshi Takata
Estimation of water supply loads in a general hospital by the dynamic calculation
methodDaisuke Ikeda, Saburo Murakawa, Takehiko Mitsunaga
A Study of Hot Water Consumption for Residential Building in Taiwan
Yi-Ting Wang, Cheng-Li Cheng, Sadahico Kawamura
Design of water supply systems in buildings based on the estimation of instantaneous
flow rates by the dynamic calculation method
Kazuhiko Sakamoto, Saburo Murakawa, Daisuke Ikeda, Hiroshi Takata
The prediction method of supply water temperature for energy simulation of hot watersupply systems. Part 4 Prediction methods of supply water temperature based on
measurements in purification plants of 52 cities in Japan
Shizuo Iwamoto, Ayano Dempoya, Renon Ohnishi, Kyosuke Sakaue
Q&A/Panel discussion

BREAK (8.40am – 9.00am) (UK)
SESSION B – DRAINAGE AND SANITATION I
Session Chair: C. Pimentel-Rodrigues
9.00am (UK)

Research on the performance evaluation of the drainage system in residential buildings

Yu-Lun Zhu, Cheng-Li Cheng, Wan-Ju Liao
Network integration between above and below ground drainage systems
K.S. Sharif, M. Gormley
Study on Experiments and Estimation Methods for Fixture Discharge Characteristics
and Carrying Performance when Horizontal Drainage Pipe of Various Pipe Diameters
are connected to Water-saving Toilets
Kazuya Akiyama, Masayuki Otsuka, Yusuke Kubota, Takumi Yamashiro, Hiroshi Shigefuji
Prediction of the air pressure distribution in the building drainage and vent systemusing Artificial Neural Network Model
I. Mahapatra, M. Gormley
Development and Drainage Performance Evaluation of Disposable Underwear Shredder
System Applicable Caring Facilities
Ayaka Kimura, Masayuki Otsuka, Michitaro Maki, Yusuke Kubota
Q&A/Panel discussion
BREAK (10.30am – 10.50am) (UK)
SESSION C– PUBLIC HEALTH AND HYGIENE I
Session Chair: Professor Cheng-Li Cheng
10.50am (UK)

Public Health Engineering in the context of COVID-19: Assessing Risk and Preparing For
the Future
M. Gormley
Consideration of the thermal environment in the sanitary space and the elderly's
thermal sensation
H.Yamaguchi
Research trends and issues regarding Covid-19 infection risks in toilet spaces
Masayuki Otsuka, Ayaka Kimura, Yusuke Kubota
Q&A/Panel discussion

BREAK (11.50am – 12.10pm) (UK)

SESSION D – WATER CONSERVATION
Session Chair: Dr M.C. Jeffery. Lee
12.10am (UK)The integration of water efficiency requirements in the new Portuguese regulation forwater supply and drainage for buildings
A. Silva-Afonso, C. Pimentel-Rodrigues
Research of Nearly Zero Water Consumption Evaluation Method for Elementary School
Yen-Chi Chan, Cheng-Li Cheng, Sadahico Kawamura
Evaluation Method and System of Nearly Zero Water Consumption for Residential
Building
Sadahico Kawamura, Cheng-Li Cheng

Short break

15 minutes
Water consumption and behavioural demand patterns of young people in Scotland
D.A. Kelly, M. Gjerull, and A. Darve
Factor analysis of precipitation characteristics and water demand in net zero waterbuilding evaluation
Toyohiro Nishikawa
A financial analysis of water conservation technologies in residential dwellings of theFederal District, Brazil
J.T.D.S. Vianna, D. Sant’Ana

Q&A/Panel discussion
CLOSE 2.10pm (UK)PROGRAM DAY TWO, WEDNESDAY 27TH OCTOBERSESSION E– PUBLIC HEALTH AND HYGIENE IISession Chair: Professor Vranayova
7am (UK)

Legionella development in sanitary heat exchangers
B. Bleys, K. Dinne, M. Guarini, M. Roger
Visualization of Contaminant Spreading through Building Drainage System
Yen-Yu. Lin, Cheng-Li. Cheng
The health risk assessment of the dissolved plasticizer from uPVC water supply pipes
M.C. Jeffery. Lee, Y.C. Yeu, C.C. Chen, C.Y. Chen
The Detection of Bacterial and Viral Aerosols in a Full-Scale Building Drainage Test Rig –Implications for Disease Transmission
T. Dight & M. Gormley
Q&A/Panel discussion

BREAK 8.15-8.35am (UK)
SESSION F – DRAINAGE AND SANITATION II
Session Chair: Professor Gormley
8.35am (UK)

Measurement of positive air pressure in a ventilation section of a 150-mm diameterstack during a branch pipe discharge
L.T. Wong, K.W. Mui, C.H. Yeung
Development and Drainage Performance Evaluation of Drainage Stack System
Applicable to Mid-rise Apartment Houses Built Using ALC Construction Method
Kanako Ishii, Masayuki Otsuka, Toya Abe, Koji Matsumura, Ryota Oba

Understanding of Drainage Performance and Examining Repair Methods in Waste Pipe
Systems for High-rise Apartment Housing Stock
Natsuki Ono, Masayuki Otsuka, Toshihiko Shinozuka, Shingo Yamazaki
Case Study and Evaluation of Siphonic Drainage System for Waste Water in Apartment
Building
Takehiko Mitsunaga, Kyosuke Sakaue, Satoshi Sasaki
Q&A/Panel discussion
BREAK 9.50 – 10.10am (UK)
SESSION G – ROOF DRAINAGE/GREEN ROOFS/HYDROLOGY
Session Chair: Professor S Murakawa
10.10am (UK)

Evaluation Model for Water Balance between Supply and Demand in Extensive Green
Roof
Lin,Ying-Chun, Cheng,Cheng-Li
Transformation of an administrative building into a sponge structure element
M.Vertal, Z. Vranayova, Vargova A., Kaposztasova, D.
Field investigation of the hydrological characteristics of an experimental raingarden
designed for flood alleviation in Scotland
A. Kalaichelvam and D.A. Kelly
A study on management of the rooftop biotope
Takahiko Suzuki, Shigeru Kuriki, Masayuki Otsuka
Q&A/Panel discussion

BREAK 11.25am-11.45am (UK)
SESSION H – WATER DRAINAGE AND SUPPLY II
Session Chair: Professor M Otsuka
11.45am (UK)

Summary of research on flow rates and water consumption in residential buildings inCzech Republic
J. Vrana, J. Mostek

Calculation of the loads of hot water consumption in Japanese hot spring hotel
Hiroshi Takata, Seiji Shimada, Saburo Murakawa, Daisuke Ikeda

Evaluation of the Power Saving Performance of Water Supply Pump. Part 2: PowerSaving Performance Depending on the Water Supply SystemShigekazu Okauchi, Kyosuke Sakaue, Takehico Mitsunaga, Guangzheng Wu
Estimating the Probability of Use for Efficient Fixtures in Commercial Buildings
T. Omaghomi, Tao Li and Steven Buchberger
Stochastic simulation model of water demand in residential buildings
Tiago de Vasconcelos Gonçalves Ferreira, Orestes Marraccini Gonçalves
Q&A/Panel discussion
Closing Remarks – Professor Lynne Jack
CLOSE 1.25pm (UK)