ktp hospital green technologies

7/28/2019 KTP Hospital Green Technologies

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CNA Group Ltd

23 Mar 2009

KHOO TECK PUAT HOSPITAL

Creating A Green HealthcareFacility


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Unique Green IAQ

Enhancement Technologies


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Complete Sterilization of Hospital Indoor Air First

Hospital in Singapore

Concealed Ceiling Fan Coil

Units are Difficult to Clean

All ducted FCU units are fitted withUVC emitters and radiometerswhich are tracked by IHEMS.

Continuously Running AHUs with

Compact Fins are Difficult to Clean

Large Spacing

Between Coil Fins

Small Spacing

Between Coil Fins

All AHUs are fittedwith UVC emitters

and radiometerswhich are tracked byIHEMS.

All Exhaust Air from Operating Theatres are

Treated with Double Layer of UVC Emitters

UVC-irradiated

sterilized New Air

from OT exhaust isreused to cool thecourtyards toprovide free cooling.


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HVAC System - Habitat for Mould and Microbial Growth

Cooling Coil Completely Blocked

With Fungal Cocktail. Air

Hardly Able To Pass Through.

Concoction ofdirt, bioaerosoland moisture on cooling coil

provide nutrient for mouldand bacteria to grow


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Harnessing the Power of Nature UV Light from the Sun

The suns UVC rays act as a natural outdoor air

purification system, inhibiting the growth of bacteria,viruses, fungi and moulds.

Germicidal UV light from UVC emitters destroys mouldsand microbial growth on wet cooling coils.

Bring crucial improvement to cooling coil heat transfer

efficiency and energy savings.

Improve IAQ and enhance healing and workplaceproductivity.

Eliminate coil washing save water and manpower,

extend coil life.

UVCEmittersInstalledAtAnAHU LethalMagneticWaveforms

EnhancedHealingEnvironment

NaturalSunlight


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Titanium Dioxide Photocatalyst Treatment of

Cooling Coils 1st Application in Singapore

Titanium dioxide when activated byUV lights becomes a powerfuloxidizing agent which:

Converts harmful VOCs (e.g.

formaldehyde) into harmlesssubstances.

Removes odours (e.g. ammoniafrom toilets, musty smell frommoulds).

Kills bacteria, viruses and mould.

Titanium Dioxide Coating on Cooling Coil

Unique Titanium Dioxide (PMI)photocatalytic treatment for thecooling coils to remove harmfulbioaerosol and odours to create afresh, clean and healthy hospital

environment.


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Energy Enhancement

Strategies


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Innovative Control Strategies

Interactive Multi-System Control

Weather-Responsive Strategies Rain Sensing , Daylight Sensing

Demand-Controlled Ventilation CO and CO Sensing

Night Cycle

Night Purge

Occupancy Sensing

Daylight Harvesting

Load Shedding


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Interactive Multi-System Control (IMSC)

FacilityBookingSystem MeetingRoom IHEMS

IMSC involves the use of high-level computer interfaces and business

rules between the various IT systems of the hospital to enhance operationalefficiency and eliminate energy wastage.

One such use of IMSC entails integrating the Facility Booking System withthe IHEMS so that the air-conditioning and lighting systems for all the facilities

(meeting rooms, training rooms, conference rooms and auditorium) will only beturned on during the booked period of the facilities.

In the event that the duration of usage of the rooms is cut short, occupancysensors installed in these rooms will turn off the lights and air-conditioning toprevent energy wastage.


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Weather Responsive Strategy Rain Sensing

A special weather programme will be incorporated into the IHEMS so that on a raining day therain sensor and the weather programme will work hand-in-hand to increase the temperature

setpoint of the indoor spaces to conserve energy and to enhance occupant comfort.

The raising of1C of temperature during raining days will help save between 7% to 8% of the air-conditioning energy.

The IHEMS will also send a signal to the irrigation system to cut off water supply to prevent the

irrigation system from discharging water to the vegetation when it is raining.

IHEMS

Rain Sensor PLC Controller

Adjust Space Temp Higher to

Improve Comfort and Save Energy

Cut off Water Supply to the Irrigation

System When it is Raining

Rain


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Weather Responsive Strategy Photocells and

Daylight Harvesting

KTPH exploits its full daylight harvesting potential by installing photocells invarious parts of the hospital to keep the street, landscape and other exteriorlighting off as long as possible.

The photocells work better than time clocks or time schedules due to the varianceof daylight caused by weather or cloud cover. Photocells save energy bystretching the off time of the exterior lighting.

PLC Controller

IHEMS

Photocell

Landscape and Exterior

Lighting


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Integrated CO and Night Purge System

CO sensors will used to control theamount of fresh air into the hospitalspaces based on the measured COlevel (Maintain at 900 to 1,000 ppm).

This system will be integrated to theNight Purge System to improve IAQas the same OA dampers and exhaustair fans will be used.

PLC Controller

Outside

CO Sensor

OA Damper ActuatorStale Air from Hospital is

Expelled


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Night Cycle

KTPH operates round-the-clock and to keep its energy consumption low,the hospital will operate on an economy mode at night by raising thenight temperature setpoint by 1C from 11 pm to 6 am during which

time the hospital is expected to be lightly occupied.


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Ventilation Control of Car Park Fans

At KTPH the IBMS will deploy smart controls using carbon monoxide (CO)sensors to shorten the operating hours of the car park ventilation fans.

The fans will only come on at CO level of15 ppm and above.


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Occupancy Sensing

Occupancy sensors will be installed in rooms which are sporadically occupied(meeting rooms, training rooms, gyms, etc) to automatically turn off lightswhen the rooms are vacated.

Ultrasonic Infrared


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Low-Energy Green Operating Theatres

Traditional method

Continual state of readiness

15-20 air changes / hour

High energy cost

New method adopted at KTPH

Heat recovery via heat pipe technology

Variable air volume fan control

Lower air changes / hourand highertemperature during non-usage

Full / Economy operation

HEPA and UVC air sterilizers

Unique double-UV irradiated newexhaust air for free cooling ofcourtyard first in Singapore.


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Innovative VAV Control Strategy First in Singapore

Fan Pressure Optimization for VAV Systems

As cooling loads change, VAV terminals modulate to vary airflowsupplied to the zones.

This causes the pressure inside the supply ductwork to change. In manysystems, a pressure sensor is located approximately two-thirds of the

distance along the main supply duct.

The AHU varies the capacity of the supply fan to maintain the staticpressure in this location at a constant set point.

With this approach, however, the system usually generates more static

pressure at part load than necessary.


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Fan Pressure Optimization for VAV Systems at KTPH

When communicating controllers are used on VAV boxes, it is possible tooptimize this static-pressure control function to minimize duct pressureand save fan energy.

Each VAV-unit controller knows the current position of its air-modulationdamper. The IHEMS continually polls these individual controllers, looking forthe VAV terminal with the damper that is open the widest.

The supply fan's set point then is reset to providejust enough pressureso that at least one damperis nearly wide open. This results in the supplyfan generating only enough static pressure to push the required quantity of

air through this "critical" VAV-terminal unit.


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Fan Pressure Optimization for VAV Systems at KTPH

Reduced supply-fan energy use. At part-load conditions, the supply fan is able tooperate at a lower static pressure and consume less energy.

Lower sound levels.The supply fan does not generate as much static pressure

and typically generates less noise. In addition, with lower pressures in the supplyduct, the dampers in the VAV boxes open wider, resulting in less regeneratednoise.

Reduced risk of fan surge. With the fan operating at a lower pressure whendelivering reduced airflow, the fan operating point is kept farther away from thesurge region.


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Fuel Cells Green Back-up Power Solution for IHEMS

Cabinet Housing for

Hydrogen Cylinders

Fuel Cell

Fuel cells are cost-effective, reliable and emit no pollutants. Unlikebattery-backed UPS, fuel cells are environmental friendly no toxicbattery waste polluting the environment. As fuel cells are powered byhydrogen, back-up power duration can be stretched indefinitely witha continuous supply of hydrogen, a distinct advantage over batteries.

Green Back-up Power

for Integrated Hospital

Energy Management

System


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State-of-the-Art Converged

Network, IT and InfocomTechnologies


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Creation of A Hassle-Free Hospital

PlannedOutpatient

Patient

Admission

PatientCall

SentinelEvents

PatientTracking &Resource

Optimisation

Medication

&Discharge

Patient-Centric Workflow


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Creation of A Hassle-Free Hospital

Admissions

OutpatientFacility

InpatientFacility

ClinicalServices

(Radiology, etc.)

DataCenter

EmergencyFacility

ConnectedHealth Environment

Converged

Network

Surgery

Pharmacy

Energy Efficiency

Patient Convenience

Process Integration

Resource MaximisationHi-touch

Flexibility

First Hospital in Singapore to Adopt the Converged Network Platform


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End-Point Devices for A Hassle-Free Hospital

Infocomm Devices

Building Systems Clinical Systems

Laptops/PCs IP Phone

(As a point-of-care device) Wireless IP Phone Nokia Dual-mode Video Conferencing

SmartBed Patient Monitoring Devices Kiosks

Digital Signage

Video Surveillance Kiosks Carpark Door Access/Alarms Lighting Air-con Elevators


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Smart IT Applications

ServiceCenter

BroadbandUnified

Communications

WiFi

IPSurveillance

IPSecurity

RadioNetwork

AccessServices

SelfhelpKiosks

DigitalSignage

MealOrder&

Delivery

IntegratedFacility&

EnergyManagement

AudioVisualSystems

forSurgical

Training

SmartPowerMeters


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Point of Care IP Telephony

We have engineered and extended an IP phones

functionality to include selecting food menu,adjusting air-conditioning or lighting settings,receiving signals from biomedical monitoringdevices or even extracting a patients clinicalinformation.

This opens up opportunities for KTPH to servepatients better, faster, at lower costs andhigher levels of convenience.


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Facilities Management

Web-based Building

Management

HVAC Control

Temperature

Monitoring & Fire

Alarm Systems

Sustainability /

Energy Management

Automated Event

Management &

Escalation

Metering & Billing

Intelligent Lighting

Control


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Benefits of Converged Integrated KTPH

CAPEX Reduction

One backbone, cabling

Optimization of resources

OPEX Reduction

Enhanced energy performance

Maintenance optimization

Interoperability, Scalability and Expandability Reduce cost of changes

Improved Business Performance

Facilitate transformation ofdata to informationto knowledge to wisdomto action toimprovement

Optimum comfort and healthy environment

ktp hospital green technologies

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