Direct Digital Control Of Building Systems From a brief historical look at the evolution of DDC to some thoughts on the future uses of artificial intelligence and fuzzy logic, this practical new work provides a systematic discussion of the theory and application possibilities of: a Sensors and actuatorsaafor temperature, humidity, pressure, flow, and indoor air quality; a DDC hardwareaaincluding microprocessors, microcomputers, and microcontrollers; a DDC softwareaaoperating system, utility, and applications software and the methods of configuring DDCs; a The operatoramachine interfaceaafor field devices, workstations, and multivendor displays; a Data communication systems for DDCaahardware, software, protocols and the ISOa²s Open Systems Interconnection 7alayer architecture; a BACnetaaASHRAEa²s building automation and control networking protocol, from its design philosophy and the communication services it provides, to issues of extensibility, conformance, and specification; a DDC design methodologyaaa complete case study, showing how to build system schematics, I/O and mode summaries, and logic flow diagrams; a DDC implementationaaissues of design, specification, installation, commissioning, training, and operation and maintenance.For our case study we will design the controls for a single-zone, constant-volume air handler. ... 8.1 SYSTEM DIAGRAM For the purposes of this example, leta#39;s assume that the HVAC engineer has already designed the air handler in terms of anbsp;...
|Title||:||Direct Digital Control of Building Systems|
|Author||:||H. Michael Newman, Morton Dan Morris|
|Publisher||:||John Wiley & Sons - 1994|