Energy Efficiency & Sustainability the Cleanliness Management Role of Components and System in Automotive and Hydraulics

홍정희,마이크데이,Hong, J.H.,Day, Mike The Korean Society for Fluid Power and Constructio 2012 드라이브·컨트롤 Vol.13 No.4

This paper explains how eliminating contamination from the manufacturing processes will lead to better product quality and hence the need for reworking, a trouble free commissioning period and greatly improved production efficiency. All of these will reduce costs and energy usage. It will also ensure that the product is delivered to the customer in a condition that will ensure improved reliability and longer life, again reducing both energy and other operating costs. Correctly designing the contamination control measures will achieve and maintain the level of fluid cleanliness that is required by the end user. The filter is critical to cleanliness management and should be selected with the same degree of thought and consideration as for other major components. This paper explains the role that Cleanliness Management plays in the reducing the carbon footprint of systems and processes by making them perform more efficiently for longer periods. It also examines two differing ways of selecting filters to incorporate the features of newer designs, and shows how significant savings in the costs of ownership can be achieved using these approaches.

Energy Efficiency & Sustainability the Cleanliness Management Role of Components and System in Automotive and Hydraulics

홍정희(J. H. Hong),마이크데이(Mike Day) 유공압건설기계학회 2012 드라이브·컨트롤 Vol.9 No.4

This paper explains how eliminating contamination from the manufacturing processes will lead to better product quality and hence the need for reworking, a trouble free commissioning period and greatly improved production efficiency. All of these will reduce costs and energy usage. It will also ensure that the product is delivered to the customer in a condition that will ensure improved reliability and longer life, again reducing both energy and other operating costs. Correctly designing the contamination control measures will achieve and maintain the level of fluid cleanliness that is required by the end user. The filter is critical to cleanliness management and should be selected with the same degree of thought and consideration as for other major components. This paper explains the role that Cleanliness Management plays in the reducing the carbon footprint of systems and processes by making them perform more efficiently for longer periods. It also examines two differing ways of selecting filters to incorporate the features of newer designs, and shows how significant savings in the costs of ownership can be achieved using these approaches.

Electrostatic Discharge in Hydraulic and Lubricating Applications

J. H. Hong(홍정희),Mike Day(마이크데이) 유공압건설기계학회 2013 유공압건설기계학회 학술대회논문집 Vol.2013 No.10

Electrostatic charge generation occurs in fluid systems as a result of friction between both the fluid and system components and also the hydraulic fluid and other fluids, notably air and additives. Electrostatic Charging (ESC) is a well-known problem in systems using hydrocarbon fluids, predominantly fuels and lubrication oils but less is known about its generation in hydraulic fluid power oils. In liquid hydrocarbon filtration, whether the charge generated on the fluid is positive or negative will depend on the fixed charge of the filter material and the fluid used. The paper explains that the new electrostatic dissipative (ESD) filter was developed to eliminate potential ESC problems in filtration of hydrocarbon fluids by preventing or significantly reducing both charge generation and its accumulation, and field trials showed successful performance of the ESD filter material, and correlated well to the laboratory tests.

Energy Efficiency & Sustainability - the Cleanliness Management Role of Components and System in Hydraulics and Lubricants

Jeong-hee. Hong(홍정희),Mike Day(마이크데이) 한국트라이볼로지학회 2016 한국트라이볼로지학회 학술대회 Vol.2016 No.4

This paper explains how eliminating contamination from the manufacturing processes will lead to better product quality and hence the need for reworking, a trouble free commissioning period and greatly improved production efficiency. All of these will reduce costs and energy usage. It will also ensure that the product is delivered to the customer in a condition that will ensure improved reliability and longer life, again reducing both energy and other operating costs. Correctly designing the contamination control measures will achieve and maintain the level of fluid cleanliness that is required by the end user. The filter is critical to cleanliness management and should be selected with the same degree of thought and consideration as for other major components. This paper explains the role that Cleanliness Management plays in the reducing the carbon footprint of systems and processes by making them perform more efficiently for longer periods. It also examines two differing ways of selecting filters to incorporate the features of newer designs, and shows how significant savings in the costs of ownership can be achieved using these approaches.

Energy Efficiency & Sustainability - the Cleanliness Management Role of Components and System in Automotive and Hydraulics

마이크 데이,홍정희,Day, Mik,Hong, Jeong-Hee The Korean Society for Fluid Power and Constructio 2012 드라이브·컨트롤 Vol.9 No.2

This paper explains how eliminating contamination from the manufacturing processes will lead to better product quality and hence the need for reworking, a trouble free commissioning period and greatly improved production efficiency. All of these will reduce costs and energy usage. It will also ensure that the product is delivered to the customer in a condition that will ensure improved reliability and longer life, again reducing both energy and other operating costs. Correctly designing the contamination control measures will achieve and maintain the level of fluid cleanliness that is required by the end user. The filter is critical to cleanliness management and should be selected with the same degree of thought and consideration as for other major components. This paper explains the role that Cleanliness Management plays in the reducing the carbon footprint of systems and processes by making them perform more efficiently for longer periods. It also examines two differing ways of selecting filters to incorporate the features of newer designs, and shows how significant savings in the costs of ownership can be achieved using these approaches.

The AS4059 HYDRAULIC SYSTEM CLEANLINESS CLASSIFICATION SYSTEM

마이크 데이(Mike Day),홍정희(Jeong-hee Hong) 유공압건설기계학회 2011 유공압건설기계학회 학술대회논문집 Vol.2011 No.6

The NAS 1638 cleanliness classification system was originally developed in 1966 by the US Aircraft Industries of America to both simplify reporting of particle count data and to control the introduction of dirt during the assembly of aircraft fluid systems. The numbers of particles at stated sizes arerepresented by broad bands where the interval was generally a doubling of contamination. A number of systems have been introduced since this to suit differing requirements. NAS 1638 and AS4059 are used in other industrial sectors such as the Off-shore & Sub-Sea and the Primay Metal industries. The changes to ISO contamination measurement standards controlled by ISO/TC131/SC6 in 1999 meant that a revision of most of these classification systems was necessary. The body responsible for NAS 1638 decided to withdraw it for installations and replace it with an update of an existing standard, SAE AS 4059. This paper details the philosophy behind the contamination coding systems, the reasons for the changes to the ISO contamination standards and explains the workings of AS 4059, the replacement for NAS 1638. It goes on to detail the latest changes to this standard.

The AS4059 Hydraulic System Cleanliness Classification System: Replacement of NAS1638

마이크 데이,홍정희,Day, Mik,Hong, Jeong-Hee The Korean Society for Fluid Power and Constructio 2012 드라이브·컨트롤 Vol.9 No.2

The NAS 1638 cleanliness classification system was originally developed in 1966 by the US Aircraft Industries of America to both simplify reporting of particle count data and to control the introduction of dirt during the assembly of aircraft fluid systems. The numbers of particles at stated sizes are represented by broad bands where the interval was generally a doubling of contamination. A number of systems have been introduced since this to suit differing requirements. NAS 1638 and AS4059 are used in other industrial sectors such as the Off-shore & Sub-Sea and the Primary Metal Industries. The changes to ISO contamination measurement standards controlled by ISO/TC131/SC6 in 1999 meant that a revision of most of these classification systems was necessary. The body responsible for NAS 1638 decided to withdraw it for new installations and replace it with an update of an existing standard, SAE AS 4059. This paper details the philosophy behind the contamination coding systems, the reasons for the changes to the ISO contamination standards and explains the workings of AS 4059, the replacement for NAS 1638. It goes on to detail the latest changes to this standard.

Energy Efficiency & Sustainability - the Cleanliness Management Role of Components and System in Automotive and Hydraulics

Mike Day(마이크 데이),Jeong-Hee Hong(홍정희) 유공압건설기계학회 2012 드라이브·컨트롤 Vol.9 No.2

This paper explains how eliminating contamination from the manufacturing processes will lead to better product quality and hence the need for reworking, a trouble free commissioning period and greatly improved production efficiency. All of these will reduce costs and energy usage. It will also ensure that the product is delivered to the customer in a condition that will ensure improved reliability and longer life, again reducing both energy and other operating costs. Correctly designing the contamination control measures will achieve and maintain the level of fluid cleanliness that is required by the end user. The filter is critical to cleanliness management and should be selected with the same degree of thought and consideration as for other major components. This paper explains the role that Cleanliness Management plays in the reducing the carbon footprint of systems and processes by making them perform more efficiently for longer periods. It also examines two differing ways of selecting filters to incorporate the features of newer designs, and shows how significant savings in the costs of ownership can be achieved using these approaches.

The AS4059 Hydraulic System Cleanliness Classification System

Mike Day(마이크 데이),Jeong-Hee Hong(홍정희) 유공압건설기계학회 2012 드라이브·컨트롤 Vol.9 No.2

The NAS 1638 cleanliness classification system was originally developed in 1966 by the US Aircraft Industries of America to both simplify reporting of particle count data and to control the introduction of dirt during the assembly of aircraft fluid systems. The numbers of particles at stated sizes are represented by broad bands where the interval was generally a doubling of contamination. A number of systems have been introduced since this to suit differing requirements. NAS 1638 and AS4059 are used in other industrial sectors such as the Off-shore & Sub-Sea and the Primary Metal Industries. The changes to ISO contamination measurement standards controlled by ISO/TC131/SC6 in 1999 meant that a revision of most of these classification systems was necessary. The body responsible for NAS 1638 decided to withdraw it for new installations and replace it with an update of an existing standard, SAE AS 4059. This paper details the philosophy behind the contamination coding systems, the reasons for the changes to the ISO contamination standards and explains the workings of AS 4059, the replacement for NAS 1638. It goes on to detail the latest changes to this standard.

Monitoring of Cleanliness Level in Hydraulic Systems: Obtaining Reliable On-Line data

홍정희,마이크 데이,Hong, Jeong-Hee,Day, Mike The Korean Society for Fluid Power and Constructio 2012 드라이브·컨트롤 Vol.9 No.2

Monitoring of system cleanliness levels and counting of particulate contaminant are fundamental to achieving hydraulic system reliability as any departure from the specified cleanliness level is often a precursor to future failures. On-line monitoring of cleanliness levels has the advantage of giving data both very quickly and accurately as environmental influences are eliminated. In this way, corrective actions can be promptly implemented. Most on-line instruments are sensitive to system conditions to a greater or lesser extent, but Automatic Particle Counters (APCs) working on light extinction principles are especially sensitive to the presence of optical interfaces caused by such conditions as fluid mixtures, emulsions, free water and air bubbles. These conditions give erroneous data and can result in drawing incorrect conclusions, wasting maintenance time and ultimately, reduced user confidence in cleanliness monitoring. This paper describes such conditions and shows how the correct selection of the analysis technique can result in reliable cleanliness level data.