Techshore Inspection Services -Kochi-Kerala | Vapour Compression Refrigeration System

Techshore Inspection Services -Kochi-Kerala | Vapour Compression Refrigeration System

Mechanical Engineering, Mechanical Engineering, Uncategorized
Techshore Inspection Services -Kochi-Kerala | Vapour Compression Notes Introduction Vapor compression refrigeration cycle is the basic working cycle of a refrigeration system. The vapor-compression refrigeration system uses a circulating medium called refrigerant is the medium which absorbs heat from the space to be cooled and subsequently rejects that heat from the room to outside. Figure describes a typical, single-stage vapor-compression refrigeration system. It have primarily four components: compressor, condenser, thermal expansion valve (also called a throttle valve), and evaporator. Circulating refrigerant enters the compressor in the saturated vapor state and is compressed to a higher pressure, higher temperature vapor. The high temperature, high pressure vapor is then in the superheated vapor and it is at a temperature and pressure at which it can be condensed with cooling water or cooling air flowing across the condenser coil…
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Techshore : Flow

Techshore : Flow

Civil Engineering, Civil Engineering
Introduction Measurement of flow rate and quantity is the oldest of all measurement of process variable in the field of instrumentation. It is made for determining the proportions and quantity of materials flowing in and out of a process. These values are necessary for plant material balancing, quality control, operation of the process and for cost accounting. But flow is the most difficult parameter to measure. In process pressure level temperature are controlled by controlling the flow itself. Flow measurements are made for gases, liquids and solids. Definition: The displacement of any volumetric quantity of fluids from higher potential to lower potential in a particular time period is called flow. Units of flow: gallion/min, litre/hour, tons/hour, pound/minute, kg/sec, cubic foot/hour. Physical Properties Of Flowing Fluids. DENSITY All substances have density.…
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Techshore : Procedure Of Liquid Penetrant Test

Civil Engineering, Civil Engineering, Uncategorized
Introduction Preparing the metal surface This step determines the effectiveness in getting the final result of defects. the surface of the metal to be inspected may contain a lot of impurities such as oil ,water, grease, dust and many other impurities that prevents the penetrant which is applied onto the surface in the coming step. These impurities may prevent the penetrant to get into any defects .so usually the metal surface is cleaned off by using a liquid called as solvent. The solvent is usually available in pressurized spray can which is to be sprayed at an angle of 45 degrees keeping a one feet distance from the metal surface, hence the diluted impurities are cleaned off using a lint free towel in a single direction. Application of penetrant The…
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Techshore : Stress – Strain curve for ductile materials

Techshore : Stress – Strain curve for ductile materials

Civil Engineering, Civil Engineering
Ductile materials Ductile materials, in which includes structural steel and alloys of other metals, are regarded as their ability to yield at normal temperatures. Refer to the Fig.1&2, illustrates the stress-strain relationship and pointed out the deformation of material under stress and regions. The different regions in the curve are, Ultimate strength Yield strength or yield point Rupture Strain hardening region Necking region Apparent stress Actual stress Low carbon steel generally demonstrates a very linear stress–strain relationship up to yield point. The linear portion of the curve is the elastic region and the slope is called the Young’s Modulus or modulus of elasticity. Young's Modulus is defined as the ratio between the compressive stress and longitudinal strain. After the yield point, the curve typically decreases slightly because of dislocations escaping from Cottrell atmospheres. As deformation…
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Techshore : Split Air Conditioning System

Techshore : Split Air Conditioning System

Mechanical Engineering, Mechanical Engineering
Air Conditioning Introduction Air conditioning is the process of altering the properties if air (primarily temperature, pressure and humidity) to more favorable condition.The control of these above conditions should be desirable to maintain the health and comfort of the residents, or to meet the requirements of industrial process irrespective of the external climatic conditions. The split air conditioner The split air conditioner comprises of two parts: the outdoor unit and indoor unit. The outdoor unit, fitted outside the room, houses components like the compressor, condenser and expansion valve. The indoor unit comprises the cooling coil or evaporator and the cooling fan. For this unit no need to make any slot in the wall of the room. Further, the present day split units have artistic looks and add to the prettiness…
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Techshore : Oil And Gas Storage

Techshore : Oil And Gas Storage

Mechanical Engineering, Mechanical Engineering
INTRODUCTION On most of the production units, oil and gas are directly piped to a refinery or tank terminal. It is difficult to store gas locally, but in certain cases underground mines, caverns or salt deposits can be used to store gas. On production units without a pipeline, oil is stored in onboard storage tanks to be transported by shuttle tanker. The oil is stored in storage cells above the shafts on concrete platforms, and in tanks on floating units. On some floaters, a separate storage tanker is used. To balance the buoyancy in both cases when the oil volume varies, the usage of ballast handling is very important. For onshore, fixed roof tanks are used for crude, floating roof for condensate. Special tank gauging systems such as pressure, level…
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Hydraulic Wind Power Transfer Systems

Hydraulic Wind Power Transfer Systems

Electronics & Instrumentation Engineering, Mechanical Engineering, Uncategorized
 INTRODUCTION  There has been a significant improve in wind energy generation systems throughout recent years. However, high capital investments and low capacity factors are still the remaining issues . Holding the stresses applied by the weight of the structure requires reliable foundations which considerably increases the implementation cost. The average lifetime of the conventional wind turbines is almost 20 years. However, their gearboxes should be replaced after the operation period of 5 to 7 years, and this replacement can be as costly as 10 percent of the entire turbine . In the conventional wind farms, each wind turbine is comprised of a gear box, power electronics, and a generator all implemented in nacelle. Recently, new generation of wind turbines is introduced in which a hydraulic system is designed and utilized…
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Ungrounded Generator Operaton In Off-Shore Utility Plant

Electrical & Electronics Engineering, Electronics & Communication Engineering
INTRODUCTION In offshore oil & gas installation, the electrical power system consists of a large distribution network, generally operating in island mode i.e., without grid support. For reliability and a compact utility plate form, power system is designed with multiple gas turbine and diesel generators, directly connected to 11kV switchgear, without generator transformers. Synchronous Generators are installed at Utility Plate form. They are driven by aero derivative gas turbine (aircraft turbine derivative applied to industrial application) and/or industrial gas turbine & diesel engines to supply un-interrupted reliable power to different plate forms to meet process requirement, refer to a typical single line diagram in Fig-1. During normal operation, GTGs supply power to the entire complex while all other DGs are not kept in operation, except for periodical operational testing. VT…
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Modelling And Dynamic Analysis Of Wavespring

Modelling And Dynamic Analysis Of Wavespring

Electrical & Electronics Engineering, Electronics & Communication Engineering, Uncategorized
 INTRODUCTION Among the many types of springs, wave springs have attracted considerable attention this kind of long andreliable source of long lasting durability and considerable effectiveness than rest of the springs. An analytical model for stamped ring wave springs is proposed, Because of the particular shape of the spring in the un deformed configuration, the loaddeflection curve is found to be appreciably bilinear in character. A similar but less pronounced behavior is displayed also by the relationship between load and internal stresses.Wave springs are used to reduce the height of the spring and to produce the same end effect end that of a coilspring andalso obey the principles ofHooke’s law.When the vehicle moves in the high speeds there must also be a requirement to make analysis fatigue and dynamic loading…
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Cost Effective Solar Biogas Hybrid Power Generation System

Cost Effective Solar Biogas Hybrid Power Generation System

Electrical & Electronics Engineering, Electronics & Communication Engineering, Uncategorized
                INTRODUCTION Electricity is a typical form of energy. It is a vital ingredient to upgrade the socio-economic condition and to alleviate poverty. Human civilization has advanced tremendously by versatile use of electricity. Electricity is necessary for all aspects of development. Proper and enough electricity supply results in a positive impact on the gross Domestic product (GDP), which is one of the key measures to understand the economy of a country. Currently about 63% of power generation of Bangladesh is based on natural gas. About 26% of its energy supply is based on imported oil and coal, 8% on diesel and the remaining 3% is hydroelectricity [1]. At present, consumers cannot be provided with uninterrupted and quality supply of electricity due to the…
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