AIR-CONDITIONING SYSTEM DESIGN:-CURRENT AND COMMON ENGINEERING PROBLEMS & THEIR SOLUTIONS IN INDUSTRY
HVAC (heating, ventilation, and air conditioning) refers to technology of environmental comfort. HVAC system design is a major sub-discipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Refrigeration is sometimes added to the field’s abbreviation as HVAC&R or HVACR.
HVAC is important in the design of medium to large industrial and office buildings such as skyscrapers and in marine environments such as aquariums, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors.
This course is industry designed, to provide a broad understanding of the improvement methodology, concepts, and process. The methodology is presented with case studies and examples drawn from service, business process and manufacturing applications. The integration of manufacturing and maintenance is also addressed. With a heavy practice orientation, as much as a third of your time will be spent working through interactive practical exercises and assessments. This course is designed as an introduction to concepts and methodology.
This training program is designed to provide an understanding of engineering related problems related to industry globally and a clear sense of what is required to effectively structure, establish measurements and solve problems. Participants will learn the goals and deliverables behind the solutions. Methodology as well as the most commonly used tools within each phase will be discussed. Participants will also learn how to support a problem solving initiative within their organization.
On successful completion of this course, the participant should be able to:-
- Understand the benefits and implications of a HVAC engineering problem solving program, and relate the concepts to the overall business mission and objectives.
- Think about his/her organization as a collection of processes, with inputs that determine the output.
- Use the concept of HVAC engineering problem solving to evaluate the capability of a process or organization.
- Recognize the engineering problem solving model used to improve processes.
- Recognize the organizational factors that are necessary groundwork for a successful engineering problem solving program.
- Integrate the HVAC engineering problem solving program effort with other process improvement initiatives.
- The latest educational methods and strategies will be utilized.
- The course is designed to maximize delegate participation.
- Questions and answers are encouraged throughout and at the daily wrap-up sessions. This gives participants the opportunity to discuss with others and the presenter their specific problems and appropriate solutions.
- The course shall be conducted through lectures, case studies, group discussions and exercises to reinforce participant’s learning.
Manufacturing, process, executives, managers, maintenance personnel, operational managers etc.
The course consists of formal content presentation interspersed with content quiz sessions. The presenter’s style involves intensive participant participation.
Thermodynamics, Temperature and Pressure
How heat is transferred; sensible, specific, and latent heat; BTU’s; saturated conditions; superheat; sub-cooling; measuring refrigeration pressure; the compound gauge; Boyle’s and Charles’ Laws.
The Refrigerant System Cycle
The refrigeration cycle; domestic and commercial refrigeration system components; valves; variations in accessory components; the gauge manifold.
Refrigerants and Their Recovery
Refrigerant types and applications; using temperature-pressure charts; determining superheat; pumping ratio problems; safety precautions; ozone layer depletion; recovery and recycling methods.
Refrigerant Blends and Troubleshooting
Fractionation; bubble point; dew point; temperature glide; interpreting temperature-pressure for blends; selecting lubricants; performing a system retrofit to a blend; refrigerant contamination problems; detecting leaks; using refrigerant cylinders; correcting pressure problems; charging a system.
Installing and adjusting automatic and thermostatic expansion valves and capillary tubes; when and how to use equalized valves; multiplexed evaporator operations.
Valves, Troubleshooting Flow Controls
Hand and check valves; installing and troubleshooting solenoid, EPR, and CPR valves; how to install and adjust head pressure control and hot gas bypass valves; diagnosing and repairing AEV and TEV system problems; correcting EPR and CPR valve problems.
Compressors and Their Lubrication
Compressor types and designs; scroll compressors and disc-type valve designs; reciprocating compressors; aligning pulleys and flywheels; how to select, size, and replace V-belts; adding and removing oil; controlling liquid migration; vibration eliminators; the compressor data plate.
Vapor compression, centrifugal, low pressure, and absorption chiller operation; open- and closed-loop systems; ammonia and lithium bromide absorption cycles; refrigerant leaks.
Solenoids, Relays and Motor Controls
Electromagnetic control devices; solenoid valves; relays; connecting and troubleshooting contactors and line starters; reading diagrams; adjusting and troubleshooting motor controls and thermostats; adjusting pump-down cycles and safety controls.
Installing and adjusting time clocks; defrost cycles; connecting and troubleshooting defrost terminator thermostats; temperature and pressure termination adjustment.
Gas and Oil Heat With Air Conditioning
Gas heat system components; adjusting burner flames, fan/limit controls, and heat anticipators; wiring heating and cooling system components; combustion; setting the electrodes; the primary control; the flame safeguard; stack control; oil furnace problems.
Electric Heat With Air Conditioning and Heat Pumps
Components of electric heating systems; wiring connections; two-stage heating systems; isolating low-voltage control circuits from line-voltage circuits; how heat pumps work.
Question &Answer Session
End of Workshop