This document covers chapter 16 on fire streams from a firefighter training manual. It discusses the properties of water and steam that make them effective extinguishing agents. It also addresses factors that impact fire stream pressure, including friction loss and elevation changes. Additionally, it describes the different types of fire stream patterns - solid, fog, straight, and broken streams - and the nozzles used to produce each type. Finally, it provides guidance on selecting, operating, and maintaining various handline nozzles.
Study of Tumble Measurement on a Steady State Flow Rigpaperpublications3
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Abstract: This paper deals with the study of Tumble flow on a Steady State Flow Rig. Recently stratified charge lean burn engines and gasoline direct injection engines (GDI) are being developed in order to reduce CO2 emission. In these combustion concept, tumble or inclined axis swirl is required not only to enhance turbulence intensity before combustion but, also to control mixture stratification and air-fuel concentration distribution. Tumble flow is the flow of charge along a line perpendicular to the vertical axis of the cylinder. Its mainly depend upon inlet port design, piston head design shrouding of valve and orientation of inlet port. There are various methods used to calculate the tumble flow, which are PIV (Particle Image Velocimetry), PTV (Particle Tracking Velocimetry), LDA (Laser Doppler Anemometry) and Steady State Flow Rig. Here we are concentrating on the Steady State Flow Rig with a paddle wheel arrangement. This test rig helps in designing suitable intake ports. This test rig measures the tumble in terms of paddle wheel RPM in accordance with the valve lift. Working principle of this test rig and its limitations are studied.
Study of Tumble Measurement on a Steady State Flow Rigpaperpublications3
Β
Abstract: This paper deals with the study of Tumble flow on a Steady State Flow Rig. Recently stratified charge lean burn engines and gasoline direct injection engines (GDI) are being developed in order to reduce CO2 emission. In these combustion concept, tumble or inclined axis swirl is required not only to enhance turbulence intensity before combustion but, also to control mixture stratification and air-fuel concentration distribution. Tumble flow is the flow of charge along a line perpendicular to the vertical axis of the cylinder. Its mainly depend upon inlet port design, piston head design shrouding of valve and orientation of inlet port. There are various methods used to calculate the tumble flow, which are PIV (Particle Image Velocimetry), PTV (Particle Tracking Velocimetry), LDA (Laser Doppler Anemometry) and Steady State Flow Rig. Here we are concentrating on the Steady State Flow Rig with a paddle wheel arrangement. This test rig helps in designing suitable intake ports. This test rig measures the tumble in terms of paddle wheel RPM in accordance with the valve lift. Working principle of this test rig and its limitations are studied.
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Types of compressor and application in oil and gas industryajichemix
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This presentation covers the type of compressors, its application, capacity control methods, surge control, cooling system, advantage and disadvantage of compressors.
Compressor Selection in Refrigeration Systems (Example)Ali Faizan Wattoo
Β
selection of a compressor for a given refrigeration system, explained with a solved example,,,, rotary vane compressors,,,, r 717 ammonia refrigerant,,,,, compressor sizing,,,, compressor rating
A century and nearly two decades later there has been immense progress in the field of IC engines, though many phenomenon taking place are still to be understood physically. This blog aims at comprehension of some of the astonishing research that has been done in this field restricting our interest to combustion with some amusing facts.
Know Everything you want to know about steam nozzles(Turbine Excluded).Know more about De-Laval Nozzles and How we achieve Supersonic velocity from nozzles.Also get to know about other essentials such as Critical pressure ratio and Saturated Flow.You can use this ppt in your projects,journals.It is not copyright protected.
Types of compressor and application in oil and gas industryajichemix
Β
This presentation covers the type of compressors, its application, capacity control methods, surge control, cooling system, advantage and disadvantage of compressors.
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44. The design of smooth bore nozzles
reduce the shape of water in the
nozzle.
16β44
CourtesyElkhartBrassManufacturingCompany,Inc.
CourtesyofTaskForceTips
CourtesyofAkronBrassCompany
69. REVIEW QUESTION
What are the main factors to
consider when operating and maintaining
a handline nozzle?
16β69
70. β’ Firefighters must know the
extinguishing properties of water, and
the properties of the nozzles available
in their departments.
β’ They must understand the factors
affecting fire streams.
β’ They must know how to select,
operate, and maintain the nozzles
available in their department.
Summary
16β70
71. Operate a fog-stream nozzle.
This objective is measured in Skill
Sheet 16-I-1.
Learning Objective 8
16β71
72. Operate a broken-stream nozzle.
This objective is measured in Skill
Sheet 16-I-2.
Learning Objective 9
16β72
73. Operate a solid stream nozzle.
This objective is measured in Skill
Sheet 16-I-3.
Learning Objective 10
16β73