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Heating, Ventilating and Air Conditioning Electrohydraulic Components and
Systems: Sizing and Design Systems
PD027 PD772
FLUIDS AND HEAT TRANSFER � PUBLIC COURSES This course explores the design of HVAC systems that deliver comfort, The introductory part of the course presents a qualitative comparison
energy efficiency and economic value. It starts with a brief review of between the electrical and the hydraulic power transmission and
heat transfer, refrigeration, and basic concepts of heating, cooling, and control systems. The course examines the benefits of merging both the
dehumidification. These concepts are extended to a variety of design electrical controls with the hydraulic drives in an Electro-hydraulic control
methods and tools. system. Participants are presented with several examples of how to
convert the classical hydro-mechanical solutions into electro-hydraulic
Topics include HVAC equipment selection and specification, comfort solutions.
and indoor air quality (IAQ), heat transfer in building assemblies, cooling
load and heat loss calculations, air distribution system design, water The course also compares the concepts of open loop versus closed
distribution system design, design for energy efficiency, applicable loop to control position, speed, and load of hydraulic actuators. The
industry standards and economic evaluation. Several complementary core part of the course covers the construction and the principle of
spreadsheet programs – which incorporate design and computation operation of the electrohydraulic valves, including solenoid operated
procedures – are used during session workshops and will be available valves, proportional valves, and servo valves. Participants delve into the
to participants. basic functions that are contained by the electrical control units that are
associated with these valves to improve the system performance; such
In addition to access to the computer programs, each participant will as gain adjustor, overload protection, null adjustment, ramp generator,
receive a complimentary copy of the textbook, HVAC Simplified by Steve dead-band eliminator, dither and pulse width modulation. The course
Kavanaugh. concludes by presenting examples of electro-hydraulic control systems
and some commissioning and maintenance guidelines for such systems.
Special Requirements
Participants are encouraged to bring a laptop computer to each session You Will Learn To
• Identify the difference in construction, principle of operation and
You Will Learn To
• Explain how to determine calculate and analyze cooling and heating characteristics between ON/OFF valves, proportional valves and
servo valves
loads • Explain how to build electrical circuits to drive an On/Off valve to
• Select a variety of heating and cooling equipment to provide comfort perform various switching control functions that operate, safely
• Interpret the basic electronic schematics of the proportional/servo
and IAQ valve amplifiers
• Design HVAC ductwork and piping systems including fan and pump • Build an open or a closed loop position, speed, or load EH control
system
selection • Tune an EH system to minimize the steady state error, overcome
• Evaluate the system efficiency and economic value the shortcoming of overlapped proportional valves, and control the
acceleration and deceleration rate of a hydraulic actuator
Who Should Attend
Designers, contractors, manufacturers, architects, and engineers who Course attendees will receive the textbook, Electro-Hydraulic
wish to enhance their knowledge of the fundamentals of equipment Components and Systems, its accompanying workbook and free
sizing and energy estimating for heating and air-conditioning systems. Animated Circuits Files.
Instructor Stephen Kavanaugh Who Should Attend
3 Days, 2.3 CEUs, 23 PDHs Application engineers, system integrators, motion control engineers,
Member $1,990 / List Price $2,090 sales engineers, field engineers and end users of electrohydraulic
components
Instructor Medhat Khalil
4 Days, 3 CEUs, 30 PDHs
Member $2,365 / List Price $2,465
36 For complete course descriptions and to register, visit go.asme.org/NAtraining or call 1.800.843.2763
