Prototype of a computer method for designing and analyzing heating, ventilating, and air-conditioning proportional, electronic-control systems. Master's thesis
The Air Force needs a better method of designing new and retrofit heating, ventilating and air conditioning (HVAC) control systems. Air Force engineers currently use manual design/predict/verify procedures taught at the Air Force Institute of Technology, School of Civil Engineering, HVAC Control Systems course. These existing manual procedures are iterative and time-consuming. The objectives of this research were to: (1) locate and, if necessary, modify an existing computer-based method for designing and analyzing HVAC control systems that is compatible with the HVAC Control Systems manual procedures; or (2) develop a new computer-based method of designing and analyzing HVAC control systems that is compatible with the existing manual procedures. Five existing computer packages were investigated in accordance with the first objective: MODSIM (for modular simulation), HVACSIM (for HVAC simulation), TRNSYS (for transient system simulation), BLAST (for building load and system thermodynamics), and Elite Building Energy Analysis Program. None were found to be compatible or adaptable to the existing manual procedures, and consequently, a prototype of a new computer method was developed in accordance with the second research objective. The prototype method developed the architecture needed to meet the manual procedure compatibility requirements and modeled three electronic components: a sensor, controller, and hi signal selector. The method incorporates four programs, written in BASIC, and copies of the programs, flowcharts, and sample runs are included.
- Research Organization:
- Air Force Inst. of Tech., Wright-Patterson AFB, OH (USA). School of Systems and Logistics
- OSTI ID:
- 6817471
- Report Number(s):
- AD-A-174617/1/XAB; AFIT/GEM/DET-86S-1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320106* -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
CIVIL ENGINEERING
COMPUTER-AIDED DESIGN
COMPUTERIZED CONTROL SYSTEMS
COMPUTERIZED SIMULATION
CONTROL SYSTEMS
ELECTRONIC EQUIPMENT
ENERGY SYSTEMS
ENGINEERING
EQUIPMENT
HEATING
RETROFITTING
SIMULATION
SPACE HVAC SYSTEMS
THERMODYNAMICS
TRANSIENTS