controlling sutardja dai hall n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Controlling Sutardja Dai Hall PowerPoint Presentation
Download Presentation
Controlling Sutardja Dai Hall

Loading in 2 Seconds...

play fullscreen
1 / 17

Controlling Sutardja Dai Hall - PowerPoint PPT Presentation


  • 97 Views
  • Uploaded on

Controlling Sutardja Dai Hall. Andrew Krioukov Stephen Dawson- Haggerty, Jay Taneja David Culler. Buildings. 40% of US electricity 42% of greenhouse gas footprint Want: Energy Efficiency Flexible Load. Building Power Consumption. 1MW. 883 kW. 11%. Sutardja Dai Hall.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Controlling Sutardja Dai Hall' - adila


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
controlling sutardja dai hall

Controlling Sutardja Dai Hall

Andrew Krioukov

Stephen Dawson-Haggerty, Jay Taneja

David Culler

buildings
Buildings

40% of US electricity

42% of greenhouse gas footprint

  • Want:
    • Energy Efficiency
    • Flexible Load
sutardja dai hall
Sutardja Dai Hall

3 years old

7 floors, 140k sq. feet

Collaboratories, offices, classrooms, auditorium & nanofab

Siemens Controls, WattStopper

> 6000 sensors & actuators

building control network
Building Control Network

Sensors,

Actuators

Controllers

Readings

& Actuation

sMAP/

HTTP

Internet

BACnet/IP

Modem

Siemens P2

over RS-485

Gateway

WattStopper

Server

Siemens

Server

Modem

slide6

Cooling Tower

Chiller

Hot Water

Economizer

Air Handler

VAV

VAV

VAV

problems
Problems

1. Oblivious control loops

  • Increasing thermostat on warm day wastes energy
  • Conflicting controls

2. Oversizing

  • Excess ventilation
  • Oversized chiller

Inefficient, Inflexible Control

slide8
Why?

Modular Building Controller

Motorola 68302

16.67 MHz Processor

3MB RAM

RS-485 @ 300 - 115.2K bps

60 day battery backup

  • Hardware:
    • Resource limited
    • Reliability is the goal
    • Supports independent operation
  • Generic control logic:

Oversizing ensures comfortable operation in most buildings with less effort

  • Historic:

Replacing pneumatic/analog controls

slide9
Goal

Globally-aware control with the same reliability.

  • What is the architecture?
    • How to ensure: robustness, security and safety?
  • What is the control policy?
building control architecture
Building Control Architecture

Sensors &

Actuators

Low-level

Control

High-level

Control

Valve pos,

Damper pos,

Fan speed

Set points,

PID parameters

Weather,

Energy Prices

Internet

Building-wide optimization

PID Loops

How to do “atomic” building configuration changes?

Security model?

Enforcing safety constraints.

policy components
Policy Components
  • Supply air temp
  • Airflow
  • Room set points
  • Cold water pumps
  • Chiller
  • Hot water pumps
variable air volume vav box
Variable Air Volume (VAV) Box
  • Ventilation
  • Maintain temperature

100%

Heating Valve

Cold Airflow

Min airflow

0%

Too Cold

Setpoint

Too Hot

vav control
VAV Control

100% Cooling

Dead band

100% Heating

conflicting vavs
Conflicting VAVs

Max heating

  • S1-9 - Mechanical Room
  • S4-20 - Floor 4 open office
  • S5-9 - Floor 5 hallway
  • S5-21 - Floor 5 open office
  • S5-4 - Floor 5 open office
  • S7-9 - Floor 7 open office
  • S7-3 - Floor 7 open office

Max Cooling

  • S1-1 – Boiler room
  • S4-4 – Floor 4 open office
  • S5-8 - Floor 5 office
  • S5-10 - Floor 5 open office
  • S7-13 - Floor 7 open office
  • S7-10 - Floor 7 open office
  • S7-1 - Floor 7 open office
ventilation
Ventilation
  • TITLE 24:
    • 15 CFM per person of fresh air
    • 900 – 1100 PPM CO2
  • VAVs have static minimum airflow base on:
    • Maximum occupancy
    • Minimum fresh air intake