Designing And Fabricating Prototype Heat Exchangers Engineering Essay

A research company, planing and manufacturing paradigm heat money changers has late found that compact coiling shell and tubing type heat money changers are preferred now a twenty-four hours. So now the company should hold to work on the paradigm of this type of heat money changers. In the past the company was researching on the simple shell and tubing type heat money changers. However, a recent study has shown that compact coiling shell and tubing type heat money changers are replacing the simple shell and tubing heat interchanging devices. The study besides shows that recent industrial demands of heat money changers include economic system, simple designs, efficiency and effectivity. In most of the well known industries concentration of this heat interchanging device i.e. heat money changer is required. And the coiling tubing used is thought to be really efficient in interchanging heat because of its belongings of leting two types of flows at the same time.

1.1.2 ) Design BERIEF: –

It is fundamentally a survey of more compact heat money changer as compared to the Shell and Tube heat money changer. For fiction the first consideration is the choice standards for the material demand. Coil stuff selected is Cu and the shell and frame stuff is GI sheet. The insularity stuff selected is foam and aluminum foil. The Cu tubing of length 1400 centimeter is to be dead set into coiling form with no pitch to 21.5 centimeter length. Then coiling spiral and the shell will be assembled. The assembly will so be decently insulated. Hot and cold H2O containers and several aggregators will be designed and fabricated. In the terminal the complete assembly of the setup will be done. The measurement devices require for the computations are laboratory thermometers, beaker and halt ticker. For analysis the recess and mercantile establishment temperature difference is to be measured and besides the volumetric flow rates, so that Nusselt figure and entire heat transportation can be measured. Main accent should be on design economic system and optimisation, design proof, material choice and paradigm fiction and testing.

1.3 ) PRELIMINARY PRODUCT DESIGN SPECIFICATIONS: –

1.3.1 ) Material USED: –

Material of spiral Copper Alloys C12200

Material of shell Best gage available of GI sheet

Material of base Best gage available of GI sheet

Material of H2O containers Normal gage available of GI sheet

Material for insularity froth and an outer covering of

Aluminum foil

1.3.2 ) STANDARD FOLLOW FOR COIL MATERIAL SELECTION: –

ASTM

1.3.3 ) Copper: –

Chemistry Data: –

Includes Ag and Phosphorus ( 0.015 – 0.04 )

1.3.4 ) PRINCIPAL DESIGN FEATURES:

Copper, DHP, Phosphorus-Deoxidized, High Residual Phosphorus. Deoxidization gives improved embrittlement opposition during welding. Has conduction 85 % IACS ( International Annealed Copper Standard ) .

1.3.5 ) GI sheet SELECTION CRITERIA: –

GI SHEET is available in the market in different thickness called gage ( in not proficient linguistic communication ) .

1.3.6 ) Measuring Instruments: –

Thermometers: Laboratory Glass Thermometer with Alcohol, holding a scope of ( 0 -110 ) oC

Beakers AND STOPWATCH: –

Beaker holding a scope of ( 100 aa‚¬ ” 600 ) milliliter.

1.3.7 ) Some normally used thermal belongingss for H2O: –

Maximal denseness at 4 oC – 1,000 kg/m3, 1.940 slugs/ft3

Specific Weight at 4 oC – 9.807 kN/m3, 62.43 Lbs./Cu.Ft, 8.33 Lbs./Gal. , 0.1337 Cu.Ft./Gal.

Freezing temperature – 0 oC ( Official Ice at 0 oC )

Boiling temperature – 100 oC

Latent heat of runing – 334 kJ/kg

Latent heat of vaporization – 2,270 kJ/kg

Critical temperature – 380 oC – 386 oC

Critical force per unit area – 221.2 saloon, 22.1 MPa ( MN/m2 )

Specific heat capacity H2O – 4.187 kJ/kgK

Specific heat capacity ice – 2.108 kJ/kgK

Specific heat capacity H2O vapor – 1.996 kJ/kgK

Thermal enlargement from 4 oC to 100 oC – 4.2×10-2

Bulk modulus snap – 2.15 ten 109 ( Pa, N/m2 )

1.3.8 ) Water pump: –

Type: Centrifugal pump

Maximum discharge = Qmax = 40 l/min

Maximum height up to which can pump = Hmax = 40 m

Voltage = 220 V

Frequency = 50 Hz

Revolutions per minute = r.p.m = 2850 rev/min

Current = 1.25 A

Power = 0.25 HP = 0.18 KW ( 275 W soap )

1.3.9 ) Working Conditions: City industries

1.3.10 ) Heat Transportation: –

Q = 4315.93 W

1.3.11 ) Merchandise Cost: –

3000A?

1.3.12 ) PRODUCT LIFE SPAN: –

Merchandise will be on the market for 10-15 old ages.

Q No.1 ( portion B )

1.1 ) Technology Design PROBLEM: –

In recent old ages both the size of air current turbine blades and the volume of commercial production has been steadily increasing. It is estimated that over 60 million kgs of finished fibreglass laminate were used for the production of air current turbine blades in the twelvemonth 2002.

In add-on, there is more and more concern about the economical designing. Therefore, the authorities is presently funding for the research and development of originative and advanced merchandises and intelligent integrated systems that could assist cut downing the energy ingestion every bit good as utilizing the renewable energy beginnings.

Design suggestion: –

A well-designed blade should be made that carry through both the economical every bit good as latest design demand.

1.2 ) Design BERIEF: –

A company of air current turbine fabrication is traveling to plan and manufacture latest and economical blades of a air current turbine.

The blades will be prototype and will be to the full tested before being manufactured for possible clients. The blades will be big in size harmonizing to the demand of the modern industries.

The blades will non be dearly-won to fabricate and be dependable and will be supplied

with 2 old ages warrant.

1.3 ) Preliminary merchandise design specifications: –

Identify issues and restraints for the design, industry and usage of big air current turbine blades

Identify and measure alternate stuffs, fabrication procedures, and structural constellations that may get the better of those restraints

Develop design specifications for big blades ( 1.5 MW to 5.0 MW size scope )

Develop recommendations for proving of stuffs, sub-component and/or sub-scale blades to decide cognition spreads

Document the projectaa‚¬a„?s advancement and consequences in a mode that makes the information readily available.

Q No 2 ( portion a )

2.1 )

Need

No

Customer demand statements

Interpretation of demands

Importance

( 1-5 )

1

Desire a simple design

Heat money changer has simple design so as to ease functionality nothingness of jobs

4

2

Desire a compact one

Heat money changer minimizes infinite demand

4

3

Can interchange heat expeditiously and efficaciously

Heat money changer is really efficient and works in a really utile mode

4

4

Heat money changer should be decently insulated

Heat money changer is decently insulated to forestall any escape of heat

4

5

Has easy care

Heat money changer has really easy care

4

2.2 )

Metric No

Need No

Prosodies

Unit of measurements

Marginal value

Ideal value

1

1

Goals scored subtractions conceded ends

Goals

& gt ; 0

& gt ; 2

2

2

Length of the coiling tubing

centimeter

1500

1200

3

2

Length of the shell

centimeter

150

100

4

3

Number of mensurating instruments

Instruments

5

3

5

3

Number of containers

containers

4

5

6

4

Time for heat exchange

s

240

180

2.3 )

Prosodies

1

2

3

4

5

6

Needs

Goals scored subtractions conceded ends

Length of the coiling tubing

Length of the shell

Number of mensurating instruments

Number of containers

Time for heat exchange

1

Goals scored subtractions conceded ends

.

2

Length of the coiling tubing and spiral

.

.

3

Number of instruments

.

.

4

Time for heat exchange

.

Q No 2 ( portion B )

2.1 )

Need

No

Customer demand statements

Interpretation of demands

Importance

( 1-5 )

1

Desire a simple design

Blades have simple design so as to ease functionality nothingness of jobs

4

2

Desire a larger size

Blades are of big size to carry through latest design demands

4

3

Can bring forth electricity expeditiously and efficaciously

Blades are really efficient and works in a really utile mode

4

4

Blades should be made up of any dependable stuff

Blades are made up of finished fibreglass laminate

4

5

The design must carry through all the recent demands

The design of blades is carry throughing all the basic demands of a latest design

4

2.2 )

Metric No

Need No

Prosodies

Unit of measurements

Marginal value

Ideal value

1

1

Goals scored subtractions conceded ends

Goals

& gt ; 0

& gt ; 2

2

2

weight of the blades

Million kilogram

& gt ; 40

& gt ; 60

3

2

stuff of the blades

Material

fibreglass laminate

finished fibreglass laminate

4

3

Number of material choices trials

Trials

5

3

5

4

Size scope

MW

1.5

5

2.3 )

Prosodies

1

2

3

4

5

Needs

Goals scored subtractions conceded ends

weight of the blades

stuff of the blades

Number of material choices trials

Size scope

1

Goals scored subtractions conceded ends

.

2

Blades

.

.

3

Number of material choices trials

.

4

Size scope

.

Q No 3

3.1 ) PRELIMINARY PRODUCT DESIGN SPECIFICATIONS: –

It is a compact multi-gym with different weight capacities and is portable.

3.1.1 ) GENERAL FEATURES: –

Over 25 exercisings! 60kg of Power RodAA® Resistance standard – upgradeable to up to 70kg

Lat tower with angled lat saloon – construct back and shoulder musculuss rapidly with this integrated tower

Upper & A ; lower pulley/squat station – usage this station to make knee bends and construct your glutes, hamstrings and quads

Leg extension/leg curl attachment – to develop strong, muscular legs

Gym-style perpendicular exercise place

Adjustable, speedy release place with Polyurethane shock absorber

Reinforced “ Ten ” -shaped base for maximal stableness

Compact size for smaller exercise infinites

Ternary map hand-grip/ankle turnups

3.1.2 ) DIMENTIONS: –

Size: cubic decimeter x tungsten x H: 90 x 46 x 78

Sum of weight attached: 68-75kg

3.1.3 ) Resistance: –

The opposition provided is adequate for a novice

3.1.4 ) Biotechnology: –

The size of the multi- gym is adjustable and so it can be used easy for adolescents every bit good as grownups

3.1.5 ) Merchandise Cost: –

3.1.6 ) Exercise: –

Number of exercisings which can be performed scopes from 25-30

3.1.6 ) Motion: –

Number of motions which can be performed = 12

3.1.7TYPES OF Motions: –

Shoulder imperativeness

Chest imperativeness

Leg raisers

Leg/thigh extension

Leg coil

Latissimus pulldown

Tricepss pulldown

Bicepss pulldown

3.1.8 ) PRODUCT LIFE SPAN: –

Merchandise will be on the market for 10 old ages.

3.1.9 ) Care: –

No particular tools should be required for care

Spare parts are available easy in the market

Care is besides non dearly-won

3.2 )

Need

No

Customer demand statements

Interpretation of demands

Importance

( 1-5 )

1

Desire a simple design

Multi- gym has simple design so as to ease functionality nothingness of jobs

4

2

Desire a compact one

Multi- gym minimizes infinite demand

4

3

Incorporates all basic motions

Multi- gym Incorporates all basic motions as offered by little multi- gym

4

4

Multi-gym should be little and comfy place equipment

Multi-gym is a little and comfy place equipment

4

3.3 )

Metric No

Need No

Prosodies

Unit of measurements

Marginal value

Ideal value

1

1

Goals scored subtractions conceded ends

Goals

& gt ; 2

& gt ; 3

2

2

Sum of weight attached

kilogram

68

& gt ; 70

3

2

Number of weight fond regard

weights

5

7

4

3

Resistance for the novice

opposition

plenty

More than plenty

5

4

Number of exercisings

exercisings

25

& gt ; 30

6

4

Number of motions

motions

& gt ; 8

& gt ; 10

3.4 )

Prosodies

1

2

3

4

5

6

Needs

Goals scored subtractions conceded ends

Weight attached

Number of weight fond regard

Resistance for the novice

Number of exercisings

Number of motions

1

Goals scored subtractions conceded ends

.

2

Weight fond regard

.

.

3

Resistance for the novice

.

4

Number of motions and exercisings

.

.

Q No. 4

PRODUCT FUNCTIONS AND MORPHOLOGICAL CHART WITH THE HELP OF MIND MAPING TECHNIQUE OF A SNOWMOBILE: –

Functions

Solution 1

Solution 2

Solution 3

Solution 4

Power

Electric

Gasoline

Diesel

Ethyl alcohol

Support

Wheels

Path

Air shock absorber

Slides

Steering

Turning wheel

Air push

Railing

Front frame is of

Aluminum

Steel

Cu

Stoping

Brake systems

Reverse push

Ratchet

Electronic contrary

Engine

Engine of a motorcycle

Engine of a small auto

Power TEK engine

Q No. 5

PRODUCT DESIGN SPECIFICATIONS OF A SNOWMOBILE: –

5.1.1 ) Feature: –

It is driven by a new cleansing agent firing Power TEK engine which offers: –

Better fuel economic system

Better oil economic system

Less fume and odor

It has really high public presentation characteristics

5.1.2 ) DIMENTIONS: –

Weighing: 200kg

Engine: 800R Power TEK

5.1.3 ) Function: –

It is an ultimate mountain machine

It has aluminum front frame

It has dazes and race type brake tablets

It has rushing place

It has multifunctional digital gage with show

It has low air current shield

It has riser block

It has electronic contrary

5.2 ) SCHEMATIC DIAGRAM OF SNOWMOBILE: –

Q No. 6

6.1 ) PRODUCT FUNCTIONS AND MORPHOLOGICAL CHART WITH THE HELP OF MIND MAPING TECHNIQUE OF A MICROWAVE THAT CAN COOK PIZZA AS WELL: –

Functions

Solution 1

Solution 2

Solution 3

Solution 4

Display

Liquid crystal

Vacuum fluorescent

Analogue dial clip timer

LED

A high electromotive force power beginning

Simple transformer

Power convertor

Any incorporate circuit

Frequencies

5.8 GHz

24.125 GHz

433.92 MHz

Components added for cookery of pizza

Addition of convection oven

Addition of high power quartzHYPERLINK “ hypertext transfer protocol: //en.wikipedia.org/wiki/Halogen_bulb ” halogen bulbs

Addition of browning tray

Puting device

Conveyor belt

Rake

Tray

Revolving mover

6.2 ) SCHEMATIC DIAGRAM OF THE MICROWAVE: –

A magnetron with subdivision removed ( magnet is non shown )

6.3 ) FMEA TABLE OF THE MICROWAVE: –

Severity ( S )

Happening ( O )

Detection ( D )

RPN

Recommended

Action

Procedure

stairss or

Input signals

Potential failure

manner

Potential Failure

Effectss

Second

Potential Causes

Oxygen

Current Control

Procedures, Inspections & A ; Trials

Calciferol

What is the

process measure and input under probe?

In what manner does

the cardinal input or procedure go incorrectly?

What is the key

consequence on the key

end product variables

( Customer demands ) ?

What cause

the key inputs

to travel incorrect?

What are the bing

controls and processs

( Inspection and Test ) that prevent either the cause or failure manner?

Precedences

What are the actions

to cut down the

happening of the cause or bettering sensing?

Cooking of pizza

Improperly cooked

Destruction of some foods in the nutrient

10

Improper sum of H2O

7

Ocular review

9

630

Train employees/replace oven

Unevenly baked

8

faded degree marked on oven

3

Ocular review

9

128

Replace oven

Oven non clean

Foreign objects in the pizza

10

Oven non washed

4

None

4

160

Appoint an inspector before storage

Bad gustatory sensation

10

Oven store improperly

7

Training

5

320

Create storage bin

and train employees

6.4 ) Cause AND EFFECT DIAGRAM OF THE MICROWAVE: –

Temp of pizza

Taste

Foods

Procedure End products

8

10

6

Importance

Process Step

— – Procedure input — –

— — – Correlation of Input to Output — — —

— Sum —

0

Clean oven

0

3

1

36

Put uncooked pizza in the pan

0

9

9

144

Topographic point the pan in the oven

0

3

1

36

Turn oven on

3

0

0

24

Choice temperature puting

9

3

3

120

Choice clip puting

9

2

7

134

Takeout pizza pan

3

1

3

52

July 25, 2017