Short Summary
Control of On-Off
Equipment in Buildings
David Auslander
99-03
EISG Project
Title: Control of On-Off
Equipment in Buildings
EISG Grant Number: 99-03
PIER Area: Building End-Use Efficiency
Principal Investigator: David Auslander
Contact Information: (510) 642-4930 dma@euler.me.berkeley.edu
Organization: University of California, Berkeley
Grant Amount: $75,000
Grant Term: 16 Months
Project Description:
The purpose of this project is to research the feasibility of using a new control strategy for the operation of on-off HVAC systems and subsystems within commercial buildings. Control logic would be designed to minimize start-stop cycling frequency while ensuring that the variation in the process remains within acceptable limits.
Proposed Outcomes:
· Computer simulation that establishes the energy efficiency, temperature variation and maintenance impact of the proposed control strategy that incorporates state transition logic of multi-stage HVAC equipment and capacity control logic.
· Performance comparison of the new control logic with existing level-crossing logic.
Anticipated Benefits:
· Increase the operating efficiency and reduce maintenance costs of HVAC and refrigeration systems through improved control logic that reduces the cycling frequency.
· Potential to reduce energy consumption in California by .15 quads (1 quad = 2.93 X 1012 kWh) of which .084 quads would be related to reduced electrical consumption which is equivalent to $1.97 billion per year.