Halderman ch020 lecture
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The document discusses coolant types, testing, and fundamentals. It describes various coolant types including inorganic acid technology (IAT), organic acid technology (OAT), and hybrid organic acid technology (HOAT). It discusses how to test coolants using a hydrometer, refractometer, pH meter or strips, and to check for galvanic activity or electrolysis using a voltmeter. The freezing and boiling points of coolant mixtures are outlined along with the purpose of coolant to transfer heat and protect the cooling system.
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0 INTRODUCTION/PURPOSE
1 SCOPE
2 FIELD OF APPLICATION
3 DEFINITIONS
4 CHOICE OF COOLANT
5 LAYOUT CONSIDERATIONS
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5.2 Other Process Condensers
6 CONTROL
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6.2 Water Cooled Condensers
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7 GENERAL DESIGN CONSIDERATIONS
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BIO3.0 Biodiesel Performance and Vehicle Maintenance
National Biodiesel Board's Diesel Technician Training Program:
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Icerie 2017 096
Quality Control Analysis of Natural Gas Condensate Products through Refining Process
Sarker, K., Faruque, M.O. (2017).Quality Control Analysis of Natural Gas Condensate Products through Refining Process.In International Conference on Engineering, Research, Innovation and Education.Shahjalal University of Science and Technology, Sylhet, Bangladesh, January 13-15. Sylhet, Bangladesh: School of Applied Sciences and Technology. 529-534.
CRI - TCBiomass2011
The document discusses CRI's use of high-throughput tools to rapidly optimize catalysts and processes for biofuel production. It provides examples of successfully developing improved catalysts for ethylene oxide production and dehydrogenation reactions within 5-18 months versus 12-18 months using conventional methods. For biofuel applications, CRI screened over 150 conditions using 0.1-0.4mL of catalyst to develop a process to convert mixed alcohols to gasoline using solid acid catalysts within 3 months. This helped their partner arrive at a process design and economics more quickly. CRI's high-throughput approach can help deploy application-specific biofuel catalysts and processes faster.
Air conditioning diagnosis service and repair v2
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Building blocks for formulators - Selector guide
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Hydrates petro teach-free webinar-5 august 2020
he Pdf version of the presentation for the completed ONLINE webinar on “Gas Hydrate, Theory, And Practice” by Professor Bahman Tohidi
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International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
Heating and Cooling of Batch Processes
Heating and Cooling of Batch Processes
0 INTRODUCTION/PURPOSE
1 SCOPE
2 FIELD OF APPLICATION
3 DEFINITIONS
3.1 units
4 STATEMENT OF THE PROBLEM
5 DEVELOPMENT OF THE METHOD
5.1 Assumptions
5.2 Basic Equations
6 APPLICATION OF THE METHOD
6.1 Determining the Behavior of an Existing System
6.2 Specifying the Heat Transfer Duty for a New System
APPENDICES
A DERIVATION OF THE EQUATIONS
B WORKED EXAMPLES
FIGURES
1 CASES CONSIDERED
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The document discusses engine cooling systems, including:
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2) Common cooling system components like the radiator, water pump, thermostat, and hoses, as well as their functions.
3) The importance of maintaining proper coolant levels and mixtures to prevent overheating or freezing while providing effective heat transfer. Issues that can occur with improper coolant are explained.
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This document summarizes a presentation on battery thermal management in electric and hybrid electric vehicles. It discusses how battery temperature affects performance and life, and why thermal management systems are needed. It describes different thermal management approaches including active vs. passive and using air or liquid for cooling. The document also provides data on heat generation rates and thermal properties of different battery types to inform thermal management system design. Overall it aims to help vehicle manufacturers design effective battery thermal management systems.
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Chap70
The document provides information about various components in hydraulic brake systems, including:
1) A residual check valve keeps slight pressure in the system to prevent air leaks, while proportioning valves limit rear brake pressure to improve balance during hard stops.
2) A pressure-differential switch lights the brake warning light if pressure is lost in one circuit, while a brake fluid sensor does the same for low fluid level.
3) Common valves like metering valves and electronic proportioning systems work to properly time and balance brake pressure between the front and rear.
Chap71
The document discusses brake fluid types and specifications. It explains that brake fluid is made from polyglycol and comes in different DOT classifications (DOT 3, DOT 4, DOT 5, DOT 5.1) with varying characteristics like moisture absorption and boiling points. DOT 3 is most commonly used but DOT 4 provides better protection against corrosion. DOT 5 is silicone-based and doesn't absorb water. The document emphasizes the importance of changing brake fluid regularly to prevent issues from low boiling points caused by absorbed moisture.
Chap72
The document provides instructions for bench bleeding a master cylinder and describes the proper brake bleeding sequence. It discusses various brake bleeding methods including manual bleeding, gravity bleeding, and pressure bleeding. Key terms related to brake bleeding such as bleeder valve, brake bleeding, and surge bleeding are defined. The bleeding sequence of starting with the rear wheel farthest from the master cylinder and working inward is described. Methods for loosening stuck bleeder valves like using an impact wrench or applying heat are also outlined.
Chap73
The document discusses wheel bearings, including the types of antifriction bearings used in automotive applications and their components. It describes ball bearings, roller bearings, tapered roller bearings, and sealed front wheel drive bearings. It also covers bearing inspection procedures, greases used for lubrication, and seals used to prevent lubricant leakage and contamination.
Chap74
The document provides information about drum brake components and operation for an ASE certification exam. It discusses drum brake parts like the backing plate, shoes, anchors, and wheel cylinders. It explains how drum brakes work, including self-energizing action and servo brakes. It also outlines advantages like use as parking brakes, and disadvantages such as susceptibility to brake fade from heat.
Chap75
The document discusses drum brake diagnosis and repair procedures. It describes removing the brake drum, inspecting components like the backing plate and brake linings, and overhauling the wheel cylinders. The key steps are removing the drum, inspecting parts for wear, lubricating contact surfaces on the backing plate, and replacing worn springs and hardware.
Chap76
The document provides information about disc brake systems, including:
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2) The main parts of a disc brake system are the caliper, brake pads, rotor, and splash shield. Disc brake pads contain a friction material bonded or riveted to a steel backing plate and may have wear indicators.
3) While disc brakes perform better than drum brakes, they also have some disadvantages like producing more brake dust and less self-energizing than drum brakes.
Chap77
The document provides instructions for visually inspecting and servicing disc brake calipers. It describes how to disassemble a caliper, check components for wear, clean and lubricate parts, and reassemble the caliper. Key steps include removing the caliper, inspecting pads and pistons, cleaning the caliper bore, replacing seals, lubricating with brake fluid, and reinstalling the caliper. Common issues like worn caliper mounts and stuck pistons are also discussed.
Chap78
The document provides information about parking brake systems, including:
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- Systems must be properly adjusted and inspected for wear like swollen cables.
Chap80
The document provides information about vacuum brake boosters, including:
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Chap81
The document discusses antilock braking systems (ABS) and their components and functions. It explains that ABS uses wheel speed sensors and electrohydraulic components to monitor wheel slippage and modulate brake pressure to prevent locking and maintain vehicle control during braking. It describes different ABS configurations including four-channel, three-channel, and single-channel systems and how they control braking for different wheels. The purpose of ABS is to allow braking and steering control under slippery conditions.
Chap82
The document provides information to prepare for an ASE Brakes certification test, including describing normal ABS dash lamp operation, visually inspecting ABS systems, retrieving trouble codes, clearing trouble codes, bleeding ABS, and diagnosing ABS-equipped vehicles. It discusses the operation of brake warning lamps, performing diagnostic procedures, diagnosing common ABS components like wheel speed sensors, and investigating various ABS systems from manufacturers like Bosch, Teves, and Delphi.
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The document discusses electronic stability control (ESC) systems. ESC uses sensors and individual wheel braking to help drivers maintain control of their vehicle during maneuvers like sharp turns or on slippery roads. It works by applying brakes when it detects loss of traction or if the vehicle is not following the driver's intended path. Traction control is similar but focuses on preventing wheel spin during acceleration. Both systems use wheel speed, steering, lateral acceleration and yaw rate sensors along with anti-lock braking to keep the vehicle stable.
Halderman ch107 lecture
The document discusses ABS diagnosis and repair procedures. It outlines the steps to diagnose an ABS problem which include verifying the customer concern, performing a visual inspection, checking for diagnostic trouble codes, completing the repair, and verifying the repair. It also discusses retrieving and clearing diagnostic trouble codes, diagnosing wheel speed sensors, and using scan tools for OBD-II ABS diagnosis.
Halderman ch106 lecture
The document discusses the components and operation of antilock braking systems (ABS). ABS uses wheel speed sensors to monitor wheel slippage and an electronic controller to modulate brake pressure and prevent wheel lockup. It controls wheel slippage through electrohydraulic units to maintain optimal tire traction and braking force. The document describes various ABS configurations, components, functions, and limitations to provide maximum vehicle control and stopping power.
Halderman ch105 lecture
The document discusses vacuum brake boosters, including how they operate and can be tested. It describes the key components of a vacuum booster like the diaphragm, control valve, and check valve. It explains how vacuum from the intake manifold is used to multiply brake pedal force. Tests are outlined to check for booster leaks and proper operation. Adjustment of the pushrod between the booster and master cylinder is also covered.
Halderman ch103 lecture
The document discusses parking brake operation, diagnosis, and service. It describes how parking brakes work on rear drum and disc brake systems. Parking brakes are activated through foot pedals, levers, or handles using cables or rods. The document explains different types of parking brake mechanisms for drum brakes, rear disc auxiliary drum brakes, and caliper-actuated disc parking brakes. Adjustment and service procedures are also covered.
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This document provides an overview of disc brake systems, including:
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Halderman ch099 lecture
The document discusses drum brakes, including their components, operation, advantages, and disadvantages. It describes drum brake parts such as the backing plate, shoe anchors, wheel cylinders, brake shoes, and linings. It explains the differences between primary and secondary brake shoes and how drum brakes use self-energizing and servo action to provide stopping power. The document also discusses drum brake fade issues and methods for adjusting drum brakes.
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The document discusses various methods for bleeding hydraulic brake systems, including:
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Halderman ch020 lecture
- 1. COOLANT 20
- 6. Figure 20-1 Graph showing the relationship of the freezing point of the coolant to the percentage of antifreeze used in the coolant.
- 8. Figure 20-2 Graph showing how the boiling point of the coolant increases as the percentage of antifreeze in the coolant increases.
- 13. TYPES OF COOLANT
- 17. Figure 20-3 Havoline was the first company to make and market OAT coolant. General Motors uses the term DEX-COOL.
- 24. Figure 20-4 Coolant used in Fords that use Mazda engines and in Mazda vehicles. It requires the use of a PHOAT coolant which is dark green.
- 25. Figure 20-5 Not all embittered coolant is labeled embittered.
- 28. WATER
- 32. COOLANT FREEZING/ BOILING TEMPERATURES
- 40. COOLANT TESTING
- 45. (Include "Tech Tip" page 179.)
- 46. Figure 20-6 Checking the freezing temperature of the coolant using a hydrometer.
- 51. Figure 20-7 Using a refractometer is an accurate method to check the freezing point of coolant.
- 58. Figure 20-8 A meter that measures the actual pH of the coolant can be used for all coolants, unlike many test strips that cannot be used to test the pH of red or orange coolants.
- 60. Figure 20-9 Galvanic activity is created by two dissimilar metals in contact with a liquid, in this case coolant.
- 74. Figure 20-10 A test strip can be used to determine the pH and percentage of glycol of the coolant. The percentage of glycol determines the freezing and boiling temperatures, as shown on the bottle that contains the test strips.
Editor's Notes
- Figure 20-1 Graph showing the relationship of the freezing point of the coolant to the percentage of antifreeze used in the coolant.
- Figure 20-2 Graph showing how the boiling point of the coolant increases as the percentage of antifreeze in the coolant increases.
- Figure 20-3 Havoline was the first company to make and market OAT coolant. General Motors uses the term DEX-COOL.
- Figure 20-4 Coolant used in Fords that use Mazda engines and in Mazda vehicles. It requires the use of a PHOAT coolant which is dark green.
- Figure 20-5 Not all embittered coolant is labeled embittered.
- Figure 20-6 Checking the freezing temperature of the coolant using a hydrometer.
- Figure 20-7 Using a refractometer is an accurate method to check the freezing point of coolant.
- Figure 20-8 A meter that measures the actual pH of the coolant can be used for all coolants, unlike many test strips that cannot be used to test the pH of red or orange coolants.
- Figure 20-9 Galvanic activity is created by two dissimilar metals in contact with a liquid, in this case coolant.
- Figure 20-10 A test strip can be used to determine the pH and percentage of glycol of the coolant. The percentage of glycol determines the freezing and boiling temperatures, as shown on the bottle that contains the test strips.