Masterclass Articles as featured in the magazine

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational
grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information covering both air conditioning and refrigeration. This on-going source of technical reference is for experienced personnel and also provides a solid educational grounding for newcomers to the industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information covering both air conditioning and refrigeration. This on-going source of technical reference is for experienced personnel and also provides a solid educational grounding for newcomers to the industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration.

"GLOBAL warming is perhaps the most common and well publicised topic currently under discussion by politicians, scientists and environmentalists throughout the world" says Mike Creamer of Business Edge, the author of the Masterclass articles.

LAST month we started to look at the reverse cycle water source heat pump and how the unitary equipment operated. This month we will be looking closer at the system as a whole.

THE reverse cycle water source heat pump system provides an energy efficient, environmentally friendly system.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an ongoing source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

In this month's article we complete the series of close control air conditioning articles by looking at close control for industrial and medical applications.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an ongoing source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.In this month's article we complete our series on close control by looking at its use in industrial and medical applications.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an ongoing source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an ongoing source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

STATIC cooling devices are a commonly used method of providing mechanical cooling to occupied spaces. The static cooling device is a viable alternative to active cooling devices such as fan coil units.

DUE to design and size restrictions, fan coils can very often end up as a compromise and can only meet consultant/contractor requirements within a band of reasonable tolerances and base requirements.

IN LAST month’s article we looked at the need to specify various elements of a fan coil unit based system together with the precautions and considerations the specifier, contractor or manufacturer must bear in mind if a successful installation is to be achieved. We now continue in more detail with these important criteria in mind in our coverage of this increasingly popular and important approach to comfort conditioning.

In last month's article we covered fan coil units in more detail following our simple introduction. We now continue with this subject with the intention of providing more information on this important approach to air conditioning.

Mike Creamer of Business Edge in the previous Masterclass article, described the various types of fan coil units (FCUs) in terms of being fitted with either direct expansion (DX) evaporators or chilled water coils.

In last month's article we concluded our study of textile based distribution systems. This month we commence the next module dedicated to fan coil units.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

IN last month’s article we completed a three-part study of air handling technology and the relevant air handling equipment. This month we commence the next module dedicated to a form of air distribution technology that is steadily gaining increasing acceptance throughout the hvacr industries.

In last month's article, we completed Part 2 of a three-part study of air handling and the relevant air handling equipment. This month we finish with Part 3 which considers the design, specification, selection, performance and application of air handling units. It considers application, installation, commissioning, operation and maintenance.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an on-going source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry

To recap on the last chapter, the definition of psychrometrics can be said to be the study of dry air and water vapour mixtures. The only source of cooling on any air conditioning system is the evaporator coil. Therefore, in order to remove heat from the space the heat must be transported in some way to the evaporator and the obvious medium used is the air contained by the room which is recirculated through the evaporator coil by the fan within the air handling unit.

In last month's article we reviewed various approaches to capacity control. This month we continue with other approaches to this important aspect of air conditioning products and systems within the category of control, safety and protection devices used in the vapour compression cycle. We also introduce the study of psychrometrics.

The Masterclass series of articles have covered a wide range of topics, some related to specialised applications and some to standard components. However, in some instances, the principles behind their selection have not been covered. Therefore, before proceeding further into capacity control and the specific aspects of refrigeration and ac, we will now look at a complete system to summarise the content of certain preceding articles.

Last month completed our review of compressor lubrication. We now move on the subject of Capacity Control - matching system capacity to varying load conditions.

In the last article we completed our study of low ambient control methods. This month we will concentrate on compressor protection devices with the emphasis on lubrication and its associated control devices for system protection.

In last month's article we continued with our study of low ambient control methods under the current category of our review of Control, Safety & Protection Devices used in the Vapour Compression Cycle in which we covered plant room damper control, multiple fan and fan speed control. This month we complete this element by looking at Head Pressure Control of Water Cooled Systems.

In the last article we looked at low ambient control for air and water-cooled systems. We now continue our study of the various means of providing low ambient control for single and multiple fan condensers on air-cooled systems.

In this month's article we continue our study of low ambient control methods for air and water cooled systems.

In the last article we continued our study of control, safety and protection devices used in the vapour compression cycle by covering the low pressure and high pressure cut-out switches. This month we move on to low ambient control.

In the last article we started a study of control and safety devices used in the vapour compression cycle by covering the thermostatic switch and the low pressure cut-out. This month we continue with the application of the low pressure cutout and move on to the high pressure cutout and other devices.

The last article covered liquid refrigerant receivers. The containment of refrigerant in vessels and refrigerant lines demands that safety be given due consideration to eliminate risk to persons due to refrigerant release or explosion and to minimise refrigerant losses thereby avoiding environmental damage and financial loss associated with replacement. This month we review various methods to meet the aforementioned requirements.

In the last article we looked at shell and tube water chillers and other types of water chiller evaporators. This month we conclude our study of the major refrigeration components by looking at Baudelot coolers and liquid refrigerant receivers.

In the last article we studied the construction, testing and protection of shell and tube evaporators. Part 16 continues with information on shell and tube water chillers and other types of water chiller evaporators

In the last article we completed our review of BPHE’s. This month we move on to direct expansion water to refrigerant evaporators. These are often referred to as shell & tube evaporators or chillers.

In the last article we studied fin and tube evaporators. A study of the increasingly popular brazed plate heat exchanger (BPHE) as an evaporator now follows. It is interesting to note that BPHEs are also extensively applied as condensers in order to reject heat energy from refrigerant to water, particularly in reverse cycle heat pump applications.

In this month’s article we complete our review of expansion devices and commence a study of air to refrigerant and water to refrigerant evaporators.

In the last article we completed our review of thermostatic expansion valves. The following continues our study of expansion devices and distributors.

In part 10, capillary tubes, restrictor expansion devices and the thermostatic expansion valve (TEV) were studied. In this month’s article we continue our study of the range of expansion devices available.

IN PART 8 and 9, the methods of heat rejection utilising air cooled and water cooled condensers were studied including the fundamentals of cooling towers. Following the flow of refrigerant around the vapour compression cycle circuit now takes us to the expansion device.

This month we continue our study of air-cooled condensers, looking at various forms of control, materials, unit selection, system design and energy conservation.

Over the last three months we have studied various compressor types. Following compression, the high-pressure refrigerant vapour is passed to the condenser where the latent heat of condensation is rejected thus returning the refrigerant to liquid form. As this step follows compression, a study of condensers now follows.

In parts 5 and 6 we studied reciprocating and scroll compressors. Rotary vane, screw and centrifugal compressors are covered here in part 7.

This month we continue our study of compressors and the alternatives to the reciprocating compressor.

In the last article we looked at refrigeration cycles. We shall now move on to the key components of the vapour compression cycle starting with the heart of the system – the compressor.

In the last article we looked at the vapour compression cycle and the behaviour of the recirculating refrigerant (R22) as it passes through the evaporator, compressor and condenser. In this month’s article we continue with the expansion device and move on to describe the absorption refrigeration cycle.

THE PRIMARY refrigerant used in air conditioning for decades is R22 (HCFC22). Whilst its ozone depletion potential (0.05) is much less than other less friendly earlier refrigerants (ODP 1.0), it is still necessary to phase this refrigerant out. Accordingly, the majority of new air conditioning systems now use R410a. However, there are still many systems operating on R22 and this will be the case for some years to come.

Mike Creamer of Business Edge revisits his Masterclass series of articles, updating and adding to the information which proved so useful to readers when the series was first published ten years ago. In this reincarnation, the series will cover both air conditioning and refrigeration and serve as an ongoing source of technical reference for experienced personnel as well as providing a solid educational grounding for newcomers to our industry.