Live support chatHeat Rejection Options in HVAC Systems
In Heat Rejection Options in HVAC Systems, you'll learn ...
- The concept of total heat of rejection (THR), its derivation and how it applies to the process of air conditioning
- Five prominent methods of heat rejection
- Importance of sub-cooling and super-heat in air-cooled condensers
- Types, rating and selection of air cooled condensers
Overview
Preview a portion of this course before purchasing it.
Credit: 4 PDH
Length: 42 pages
One of the basic requirements of the air conditioning and refrigeration system is to reject heat to the outdoors. Air conditioning chillers come in two different forms:
- An air-cooled chiller uses the flow of outside air across the condenser to remove or reject heat from the chiller. Air-cooled chillers typically have the condenser mounted on the roof or somewhere outside the facility while the evaporator can either be inside or outside the facility.
- Water-cooled chillers are typically 100 tons or greater and use water to remove the heat from the condenser. Water-cooled chillers are typically more efficient than air-cooled chillers. The condenser water is kept cool by a cooling tower, or water from the city main or well water is used. A water-cooled chiller will typically have the condenser and evaporator inside a facility while the cooling tower is located outside.
The range of chillers and associated heat rejection equipment is wide ranging. This 4-hour course provides a comprehensive description of the five prominent heat rejection methods as applicable to air conditioning systems.
This course is applicable to architects, air-conditioning engineers, controls engineers, contractors, environmentalists, energy auditors and loss prevention professionals. It is assumed that all the readers know the basic functioning of the air-conditioning system.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- The concept of total heat of rejection (THR), its derivation and how it applies to the process of air conditioning
- Five prominent methods of heat rejection
- Importance of sub-cooling and super-heat in air-cooled condensers
- Types, rating and selection of air cooled condensers
- Operating principle of wet cooling towers
- Types of cooling towers, cross-flow, counter-flow, induced draft and forced draft
- Capacity control of air cooled and water cooled systems
- Closed circuit fluid coolers v/s evaporative condensers
- Energy performance of air-cooled chiller v/s water cooled systems
- Effectiveness of adiabatic cooling technology
- Benefits and limitations of various heat rejection methods
- The selection of appropriate method on capital costs and environment criteria
Certificate of Completion
You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 20 questions. PDH credits are not awarded until the course is completed and quiz is passed.
| This course is applicable to professional engineers in: | ||
| Alabama (P.E.) | Alaska (P.E.) | Arkansas (P.E.) |
| Delaware (P.E.) | District of Columbia (P.E.) | Florida (P.E. Area of Practice) |
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| Illinois (S.E.) | Indiana (P.E.) | Iowa (P.E.) |
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| Maine (P.E.) | Maryland (P.E.) | Michigan (P.E.) |
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| Ohio (P.E. Self-Paced) | Oklahoma (P.E.) | Oregon (P.E.) |
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| Vermont (P.E.) | Virginia (P.E.) | West Virginia (P.E.) |
| Wisconsin (P.E.) | Wyoming (P.E.) | |
Preview a portion of this course before purchasing it.
Credit: 4 PDH
Length: 42 pages
