Vortex tube refrigeration

Vortex tube refrigeration
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Vortex tube refrigeration

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Working: - Vortex tube is simple device of producing cold. A compressed air is passed tangentially through nozzle. Here air velocity increases due to expansion and particular shape of nozzle. A vortex flow is created in the chamber and air flows in spiral motion along periphery of hot side. This flow is restricted by valve. If the pressure of air near valve is increased by partly closing of valve, a reversed axial flow through the core of hot side starts from high pressure to low pressure region. During this process, energy transfer takes place between reversed stream and forward stream through the core gets cooled below the inlet temperature of the air in the vortex tube while air stream in forward direction gets heated. The cold stream is escaped through the diaphragm hole into the cold side, while hot stream is passed through the opening valve.

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When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as (A) Steady flow (B) Turbulent flow (C) Vortex flow

Description : When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as (A) Steady flow (B) Turbulent flow (C) Vortex flow

Last Answer : Answer: Option C

In a forced vortex, the velocity of flow everywhere within the fluid is (A) Maximum (B) Minimum (C) Zero (D) Nonzero finite

Description : In a forced vortex, the velocity of flow everywhere within the fluid is (A) Maximum (B) Minimum (C) Zero (D) Nonzero finite

Last Answer : Answer: Option D

What Is Remote Mount With Mta Option? (in Case Of Dual Sensor Vortex Flowmeter, Rosemount Has Written In Its Catalog Drawings)?

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Last Answer : Remote mount with MTA means MTA connector for mounting remote connection. MTA is the Connector used for connection. Generally we called it MTA Connector. There are many types of MTA connector such as MTA 100connectors, Mta 156 connectors etc.

Nozzle consists of components a) Washer b) Vortex plate c) Strainer d) All of the above

Description : Nozzle consists of components a) Washer b) Vortex plate c) Strainer d) All of the above

Last Answer : All of the above

The movement of air mass in the case of Tornado can be described as : (a) Forced vortex throughout (b) free vortex throughout (c) Forced vortex at the core and free vortex outside (d) Free vortex at the core and forced vortex outside

Description : The movement of air mass in the case of Tornado can be described as : (a) Forced vortex throughout (b) free vortex throughout (c) Forced vortex at the core and free vortex outside (d) Free vortex at the core and forced vortex outside

Last Answer : (c) Forced vortex at the core and free vortex outside

Singing of telephone wires in the wind occurs due to : (a) Vibrations caused by birds as they sit on or get off, the wires (b) Tensioning at the ends (c) Magnus effect (d) Generation of Karman Vortex street

Description : Singing of telephone wires in the wind occurs due to : (a) Vibrations caused by birds as they sit on or get off, the wires (b) Tensioning at the ends (c) Magnus effect (d) Generation of Karman Vortex street

Last Answer : (d) Generation of Karman Vortex street

Under what circumstances are vortex flowmeters the most accurate?

Description : Under what circumstances are vortex flowmeters the most accurate?

Last Answer : The accuracy of vortex flowmeters can be within 1% so long as they’re being operating within their recommended flow range, have a steady stream, and you have 10 pipe diameters of straight pipe behind the in front of the flowmeters. Outside of these parameters, these flowmeters are not accurate.

Which of the following conditions is worst with regard to wake vortex turbulence? a. Lights winds near the surface b. Strong winds near the surface c. Marked vertical wind shear d. Marked atmospheric turbulence near the ground

Description : Which of the following conditions is worst with regard to wake vortex turbulence? a. Lights winds near the surface b. Strong winds near the surface c. Marked vertical wind shear d. Marked atmospheric turbulence near the ground

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When Sally buys Vortex using a channel with only one intermediary, that intermediary is classified as a A)retailer. B)wholesaler. C)broker. D)functional middleman. E)producer.

Description : When Sally buys Vortex using a channel with only one intermediary, that intermediary is classified as a A)retailer. B)wholesaler. C)broker. D)functional middleman. E)producer.

Last Answer : A)retailer.

List the various equipment’s used for liquid mixing and explain how vortex formation can be avoided in liquid mixing.

Description : List the various equipment’s used for liquid mixing and explain how vortex formation can be avoided in liquid mixing. 

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The current spell of cold wave in the US has been a fall out of the : (1) polar vortex (2) biodiversity and habitats (3) climate and energy (4) political administration

Description : The current spell of cold wave in the US has been a fall out of the : (1) polar vortex (2) biodiversity and habitats (3) climate and energy (4) political administration

Last Answer :  polar vortex

What bottled condiment sauces do you believe/know require refrigeration?

Description : What bottled condiment sauces do you believe/know require refrigeration?

Last Answer : I put almost every condiment in the fridge once opened. The only exceptions in my house are balsamic vinegar and oil (I don’t think of oil as a condiment, but I’ll go ahead and list it). Soy sauce is out at restaurants so it seems like it could be left out? I’m not sure.

A question on cooling/refrigeration (details inside)

Description : A question on cooling/refrigeration (details inside)

Last Answer : answer:Food safety guidelines call “freezing” storage at 0 degrees Fahrenheit, and I’m pretty sure refrigeration is storage at 40 degrees Fahrenheit. That freezer is likely colder to mitigate temperature changes caused by opening the doors.

What is refrigeration method or refrigeration ?

Description : What is refrigeration method or refrigeration ?

Last Answer : : The method by which an object or space is cooled and its coolness is maintained is called freezing method or refrigeration. The freezing process absorbs heat from a low temperature and transfers heat to a high temperature.

What is the advantage of cascade refrigeration?

Description : What is the advantage of cascade refrigeration?

Last Answer : Advantage of cascade refrigeration system. This system has the following advantages compared to a two stage compression system. 1.Energy is saved because the system allows use of refrigerants that have ... for each of the higher temperature side. 2. It allows stable ultra low temperature operation.

What is the function of the evaporation in a refrigeration or air conditioning system?

Description : What is the function of the evaporation in a refrigeration or air conditioning system?

Last Answer : The three main functions of the evaporator are to:a. absorb heat from the medium being cooled.b. allow the heat to boil off the liquid refrigerant to a vaporc. allow the heat to superheat the refrigerant vapor

What does the term "true refrigeration" mean?

Description : What does the term "true refrigeration" mean?

Last Answer : "True Refrigeration" is not a term, it is a brand. Refrigerators and freezers manufactured by True Manufacturing use that name.

Are there any varieties of cheese that don't need refrigeration?

Description : Are there any varieties of cheese that don't need refrigeration?

Last Answer : Generally hard cheeses like parmesan last awhile in an air-tight container.