Este documento fornece uma visão geral dos medidores de fluxo térmico de dispersão. Eles usam um elemento de sensor de temperatura aquecido para medir o fluxo com base na taxa de resfriamento, oferecendo maior confiabilidade e vida útil em comparação com medidores de fluxo mecânicos. Os medidores de fluxo térmico de dispersão são omnidirecionais e causam menor queda de pressão.
Volvo XC90 Overheating Problems Causes and Symptoms by Auto Experts of Marlb...Professional Automotive
The excess heat generated by combustion can melt or warp the engine block of your Volvo XC90. When your Volvo XC90 engine starts to overheat, the first thing to check is signs of leaks, blockages and oil level. Some signs of an overheated engine are steam from hood, thumping noises and reduced engine power. For more details on causes and symptoms of overheating problems in your Volvo XC90, see this slideshow.
What Causes Volkswagen Tiguan Exhaust to Rattle While AcceleratingSolo Motorsports
Malfunctions in the exhaust system could adversely affect the performance and fuel economy of your Volkswagen Tiguan. So, early signs of a failing exhaust in your vehicle should not be overlooked. Detect and repair the faults in the system as soon as possible. Please go through this slide to get a better awareness in this regard.
Types of Medical Tests You Can Get Done At Your HomeAishakapoor67
Getting regular health check-ups can not only help in the detection of potentially life-threatening health conditions, but also help in the early diagnosis of an illness. One can always opt for home sample collection or home health check-ups and get the procedure done without any hassle.
Volvo XC90 Overheating Problems Causes and Symptoms by Auto Experts of Marlb...Professional Automotive
The excess heat generated by combustion can melt or warp the engine block of your Volvo XC90. When your Volvo XC90 engine starts to overheat, the first thing to check is signs of leaks, blockages and oil level. Some signs of an overheated engine are steam from hood, thumping noises and reduced engine power. For more details on causes and symptoms of overheating problems in your Volvo XC90, see this slideshow.
What Causes Volkswagen Tiguan Exhaust to Rattle While AcceleratingSolo Motorsports
Malfunctions in the exhaust system could adversely affect the performance and fuel economy of your Volkswagen Tiguan. So, early signs of a failing exhaust in your vehicle should not be overlooked. Detect and repair the faults in the system as soon as possible. Please go through this slide to get a better awareness in this regard.
Types of Medical Tests You Can Get Done At Your HomeAishakapoor67
Getting regular health check-ups can not only help in the detection of potentially life-threatening health conditions, but also help in the early diagnosis of an illness. One can always opt for home sample collection or home health check-ups and get the procedure done without any hassle.
The flywheel acts as an angular momentum conservator and helps to stabilize the power output of an internal combustion engine. However, a cracked or damaged flywheel fails to do its job which could adversely affect the performance of a vehicle. So, signs of a worn-out flywheel should not be neglected. This slide might help you to get a better understanding in this regard.
Are You Nuts? Why You Should Eat More of This Healthy SnackSandeep Baweja
Sandeep Baweja is a father of three in California. Since Sandeep lives a busy life, he makes his health one of his top priorities and cites nuts as a healthy snack he lives by.
O n t h e o c c a s i o n o f t h e W o r l d N a t i o n a l
D a y o f H a p p i n e s s , o u r E n g l i s h t e a c h e r
s u g g e s t e d t h a t w e t a k e t h e o p p o r t u n i t y
t o d o a p r o j e c t . T h e o b j e c t i v e ? t o m a k e
a s m a n y s t u d e n t s a s p o s s i b l e h a p p y b y
g i v i n g t h e m a m o m e n t o f p l e a s u r e .
D o y o u w a n t t o k n o w w h a t h a p p e n s
n e x t ? T h e n f o l l o w u s i n t h i s
a d v e n t u r e . . .
Luxury Home for Sale | 2297 Oceanside Ct Atlantic Beach, FL 32233Janie Coffey
Luxury Home for Sale | 2297 Oceanside Ct Atlantic Beach, FL 32233
http://janiecoffey.com/p/8816/luxury-home-for-sale-2297-oceanside-ct-atlantic-beach-fl-32233
Don’t miss this stunning luxury home with breathtaking water views in Atlantic Beach FL!
What is an average remodeling budget? How to estimate costs? What mistakes to avoid? Check out this simple guide to creating a budget for your remodeling project
Exemplo de organograma de hotel de grande porte. Alguns cargos podem deixar de existir, alguns podem acumular outras funções, dependendo da categoria do estabelecimento, do modo de gestão ou das diretrizes da cadeia hoteleira
A identidade visual foi pensada para uma clínica de fisioterapia jovem e moderna que busca tranquilizar e cuidar de seus pacientes com responsabilidade. O logotipo possui as cores verde e azul que significam saúde e tranquilidade, tais cores quando unidas ao desenho e a tipografia moderna simbolizam a transformação da vida através da saúde e demonstram preocupação e seriedade.
We provides a wide range of Air Dryers for Different Application as per your Requirement. Refrigerator Dryer, Heat of Compress Dryer, and Heatless Type Air Dryers, Internal Heater Dryer, Split-Flow Dryer, Biogas Dryer are the main type of Air Dryers.
The flywheel acts as an angular momentum conservator and helps to stabilize the power output of an internal combustion engine. However, a cracked or damaged flywheel fails to do its job which could adversely affect the performance of a vehicle. So, signs of a worn-out flywheel should not be neglected. This slide might help you to get a better understanding in this regard.
Are You Nuts? Why You Should Eat More of This Healthy SnackSandeep Baweja
Sandeep Baweja is a father of three in California. Since Sandeep lives a busy life, he makes his health one of his top priorities and cites nuts as a healthy snack he lives by.
O n t h e o c c a s i o n o f t h e W o r l d N a t i o n a l
D a y o f H a p p i n e s s , o u r E n g l i s h t e a c h e r
s u g g e s t e d t h a t w e t a k e t h e o p p o r t u n i t y
t o d o a p r o j e c t . T h e o b j e c t i v e ? t o m a k e
a s m a n y s t u d e n t s a s p o s s i b l e h a p p y b y
g i v i n g t h e m a m o m e n t o f p l e a s u r e .
D o y o u w a n t t o k n o w w h a t h a p p e n s
n e x t ? T h e n f o l l o w u s i n t h i s
a d v e n t u r e . . .
Luxury Home for Sale | 2297 Oceanside Ct Atlantic Beach, FL 32233Janie Coffey
Luxury Home for Sale | 2297 Oceanside Ct Atlantic Beach, FL 32233
http://janiecoffey.com/p/8816/luxury-home-for-sale-2297-oceanside-ct-atlantic-beach-fl-32233
Don’t miss this stunning luxury home with breathtaking water views in Atlantic Beach FL!
What is an average remodeling budget? How to estimate costs? What mistakes to avoid? Check out this simple guide to creating a budget for your remodeling project
Exemplo de organograma de hotel de grande porte. Alguns cargos podem deixar de existir, alguns podem acumular outras funções, dependendo da categoria do estabelecimento, do modo de gestão ou das diretrizes da cadeia hoteleira
A identidade visual foi pensada para uma clínica de fisioterapia jovem e moderna que busca tranquilizar e cuidar de seus pacientes com responsabilidade. O logotipo possui as cores verde e azul que significam saúde e tranquilidade, tais cores quando unidas ao desenho e a tipografia moderna simbolizam a transformação da vida através da saúde e demonstram preocupação e seriedade.
We provides a wide range of Air Dryers for Different Application as per your Requirement. Refrigerator Dryer, Heat of Compress Dryer, and Heatless Type Air Dryers, Internal Heater Dryer, Split-Flow Dryer, Biogas Dryer are the main type of Air Dryers.
Making the kitchen a place you love being in is vital because it is where many everyday duties take place. Whether you like soft neutrals or vividly saturated colours, adding colour to your kitchen makes it feel more welcome and personal. You should try out different colours but make sure that those colours are your favourite and makes you feel welcoming into the kitchen.
There are a variety of materials available for pipes, but people often prefer glass because it allows them to enjoy different flavors of pure smoke. With glass pipes alone, you have different types that have different functions.
Focusing on the quality of mobile app is important how to go about itJai Mehta
As new android application development and designing trends keep on changing it makes the task of the developers even more challenging. You must know that customers today are very selective and their mood swings within no time. And they are in hunt for new trends and designs. The users nowadays aren’t prepared to compromise on the quality of the product or services whether it is a physical item or a mobile application.
It's 2023, and the fashion world is abuzz about the newest trend: matching bracelets. From sleek and minimalistic pieces to bold and eye-catching designs, there's something for everyone in this stylish trend. Whether you're looking for something to match your work look or a special gift for your loved one, there's sure to be a pair of matching bracelets that will make a statement. In this blog post, we'll explore the different types of matching bracelets available in 2023 and offer tips on how to choose the perfect pair.
This had been the bible of my journey as a sales professional across from F&B, direct sales to clientele management. Where most quantifiable measurements will be provided by CRM softwares, we just have to shine forth with our essence...
Beyond best!
L S P 2 0 0 - 3 2 0 , s p r i n g 2 0 2 0 , w r i t i n g JospehStull43
L S P 2 0 0 - 3 2 0 , s p r i n g 2 0 2 0 , w r i t i n g a s s i g n m e n t s p o l i c y a n d e x p e c t a t i o n s :
P l e a s e n o t e : w h i l e w e w i l l n o t b e “ m e e t i n g ” a s u s u a l a t a s e t t i m e i n a p h y s i c a l
c l a s s r o o m , t h e o f f i c i a l “ m e e t i n g ” t i m e f o r t h i s c l a s s i s 2 : 4 0 P M C e n t r a l T i m e
( C h i c a g o T i m e ) o f e a c h M o n d a y a n d W e d n e s d a y . T h i s m e a n s t h a t I w i l l h a v e a n y
n e w i n f o r m a t i o n f o r t h e c l a s s p o s t e d b y 2 : 4 0 P M .
* A T T E N D A N C E : Y o u m u s t l o g i n t o o u r D 2 L c l a s s s i t e b e t w e e n 2 : 4 0 P M a n d 5 : 0 0 P M
o n M o n d a y a n d W e d n e s d a y . Y o u r l o g - i n t i m e w i l l b e a v a i l a b l e t o m e . I a m n o t
c o n c e r n e d w i t h “ a t t e n d a n c e ” s o m u c h b u t h a v i n g a f i x e d t i m e w h e n y o u l o g - i n w i l l
h e l p u s a l l t o f i n d s o m e s o r t o f r h y t h m . A n d , i t w i l l h e l p m e k e e p t r a c k o f y o u r
w o r k a n d m a k e s u r e t h a t y o u r e c e i v e p r o p e r c r e d i t . I f y o u a r e i n a r a d i c a l l y
d i f f e r e n t T i m e Z o n e p l e a s e c o n t a c t t o m a k e o t h e r p o s s i b l e a r r a n g e m e n t s .
* W h e n y o u l o g - i n y o u s h o u l d S u b m i t a n y w r i t t e n a s s i g n m e n t s t h a t a r e d u e , a n d
l o o k i n C o n t e n t f o r a n y n e w I n f o , R e a d i n g s a n d A s s i g n m e n t s . I a m t r y i n g t o m a k e
s u r e t h a t I ’ m g i v i n g y o u a l l t h e i n f o r m a t i o n y o u n e e d , s o i f y o u h a v e a q u e s t i o n
p l e a s e l o o k i n C o n t e n t t o s e e i f y o u c a n f i n d a n a n s w e r b e f o r e e m a i l i n g m e .
* A l l w r i t i n g a s s i g n m e n t s s h o u l d b e t y p e d a n d f o r m a t t e d a s d e s c r i b e d i n t h e L S P
2 0 0 F o r m a t S h e e t ( s e e s e p a r a t e s h e e t ) , a n d s h o u l d b e S u b m i t t e d a s D o c , D o c x o r
P D F f i l e s . D O N O T S U B M I T Y O U R W O R K A S G O O G L E D O C S . M a k e s u r e t o g i v e y o u r
f i l e s a n a m e t h a t i s r e l e v a n t t o t h e a s s i g n m e n t .
* A l l d u e w r i t i n g a s s i g n m e n t s m u s t b e S u b m i t t e d b e t w e e n 2 : 4 0 P M a n d 5 : 0 0 P M
C e n t r a l T i m e ( C h i c a g o T i m e ) o f t h e n e x t c l a s s “ m e e t i n g ” d a y . F o r e x a m p l e , i f t h e
a s s i g n m e n t i s p o s t e d b y t h e I n s t r u c t o r o n M o n d a y , t h e ...
Semelhante a Thermal Dispersion Flow Switches (20)
The Model DAFA Air Flow Indicator and Alarm alerts users of low or no air flow conditions in pipes utilizing a thin, field trimmable vane to sense the air flow rate. An 85 dB audible buzzer alternates with a bright red LED to alert users when the air flow rate drops, indicating low or no flow in the pipe. The DAFA is battery powered to provide versatility for where it can be installed, and offers a yellow LED to indicate a low battery. This device is ideal for monitoring radon mitigation systems by detecting a loss of air flow in the pipe and providing a signal to homeowners if the fan has stopped operating.
To place an order or learn more, please visit the Dwyer website at https://dwyer-inst.com/modeldafa.html
The Series PMT2 is a transmitting device that senses the current generated by particles as they pass by the sensing probe. The current level is correlated to the amount of particles in the air stream, and thus the PMT2 output (4-20mA loop signal) can provide a representation of the particulate in the duct.
Learn more or order at https://dwyer-inst.com/series-pmt2-particulate-transmitter.html
The Series WE08 incorporates a full port 2-piece brass ball valve for great flow rates with minimal pressure drop. The valve features a blowout proof stem for added safety, reinforced PTFE seats and seals for longer life, and a brass ball for better performance. Actuators are direct mounted creating a compact assembly for tight spaces. The Series WE08 can be configured with either an electric or pneumatic actuator. Electric actuators are available in weatherproof or explosion-proof, a variety of supply voltages, and two-position or modulating control. Two-position actuators use the supply voltage to drive the valve open or closed, while the modulating actuator accepts a 4 to 20 mA input for valve positioning. Actuators feature thermal overload protection and permanently lubricated gear train.
The pneumatic double acting actuator uses an air supply to drive the valve open and closed. The actuator has two supply ports, with one driving the valve open and the other driving the valve closed. Spring return pneumatic actuators use the air supply to open the valve and internally loaded springs return the valve to the closed position. Also, between the air supply ports for opening and closing the valve, actuators are constructed of anodized and epoxy coated aluminum for years of corrosion free service.
To place an order or learn more, please visit the Dwyer website at https://dwyer-inst.com/serieswe08.html
Series DP3 Wireless Differential Pressure ManometerDwyer Instruments
The Series DP3 Wireless Differential Pressure Manometer is a compact, highly accurate, auto-ranging differential pressure manometer ideal for low flow applications. The Series DP3 is used in conjunction with the Dwyer Mobile Meter® application software to view pressure drop across filters, static pressure in ducts, and velocity pressures from pitot tubes or air flow stations.
Learn more or order at https://dwyer-inst.com/series-dp3.html
Series IS/PX/TX Insite™ Air/Liquid In-Line FlowmeterDwyer Instruments
The Series IS/PX/TX Insite™ Air/Liquid In-Line Flowmeter is available in a variety of materials including PVC, Aluminum, Brass, or 316 stainless steel. The variety of optional materials allows the flowmeters to be used in many different applications. The Series INSITE Flowmeters are also available with an optional field adjustable reed switch for high and low alarms.
To learn more about the Series IS/TX/PX INSITE™ Flowmeter, please visit the Dwyer website at: https://www.dwyer-inst.com/Product/SeriesIS-PX-TX
Dwyer Carbon Dioxide and Temperature Transmitters accurately monitor the CO2 concentration and temperature in indoor environments to help achieve energy savings. For increased sensor accuracy, a single beam dual wavelength nondispersive infrared (NDIR) sensor is used to automatically correct the measurement in both occupied and unoccupied buildings against light source aging effects. The single beam dual wavelength sensor technology provides the highest level of accuracy compared to Automatic Baseline Correction methods which can unintentionally shift the calibration based on CO2 levels and barometric pressure conditions.
To place an order or learn more, please visit http://www.dwyer-inst.com/Product/AirQuality/CarbonDioxideTransmitters
The Series PMI Particulate Matter Transmitter is designed to measure indoor air quality by detecting particulate matter in an office environment or HVAC duct. Using laser scattering technology, the Series PMI can measure particles as small as 0.3 µm, making it an essential component of any indoor air quality monitoring system. The optional relay combined with the settable alarm and control parameters allow the Series PMI to be a stand-alone controller.
To learn more or order, please visit https://www.dwyer-inst.com/Product/AirQuality/IndoorAirQualityTransmitter/SeriesPMI
Series RSMC StabiliSENSE™ Critical Room Status MonitorDwyer Instruments
The Series RSMC StabiliSENSE™ Critical Room Status Monitor is designed for critical low differential pressure applications that require stringent pressure monitoring and alarming. It can be configured to monitor positive or negative pressure in clean rooms, hospital isolation rooms, school nurses offices, laboratories, and vivariums. The RSMC is a complete system with a touchscreen graphical user interface which enables access to pressure, humidity, temperature, air change, security, door status, calibration, and alarm setup. The graphical display color changes allow a clear determination of when the parameters are operating within the acceptable range (green), caution range (yellow), or have gone outside the acceptable operating range (red). The RSMC StabiliSENSE™ critical room status monitor comes standard with BACnet MS/TP and Modbus® RTU communications.
To learn more or order, please visit https://www.dwyer-inst.com/Product/SeriesRSMC#literature
The Series RSME Room Status Monitor is designed for low differential pressure applications that require stringent pressure monitoring and alarming. It can be configured to monitor positive or negative pressure in clean rooms, hospital isolation rooms, laboratories, and vivariums. The RSME is a complete system with a touchscreen graphical user interface which enables access to pressure, humidity, temperature, air change, security, door status, calibration, and alarm setup. The graphical display color changes allow a clear determination of when the parameters are operating within the acceptable range (green), caution range (yellow), or have gone outside the acceptable operating range (red). The RSME room status monitor comes standard with BACnet MS/TP and Modbus® RTU communications.
To learn more or order, please visit https://www.dwyer-inst.com/Product/Pressure/RoomStatusMonitors/SeriesRSME
Series MSX and MSX Pro Magnesense® Differential Pressure TransmittersDwyer Instruments
The Series MSX and MSX Pro Magnesense® differential pressure transmitters are ideal for monitoring building control applications. With enhanced accuracy and stability, the MSX Pro is also suitable for high performance, critical environments.
To learn more or order, please visit https://info.dwyer-inst.com/msx-msxpro
Model CMS300 Carbon Monoxide Transmitter and SwitchDwyer Instruments
The Carbon Monoxide Transmitter and Switch, Model CMS300, provides a field selectable current or voltage output that is proportional to the carbon monoxide concentration in underground parking garages, vehicle maintenance facilities, or mechanical rooms. An integral relay can be used for alarm conditions and is configured with preset jumper selectable ranges of 25, 60, or 150 PPM. Field calibration can be done by using calibration gas, a calibration adapter, and the on board zero and span potentiometers.
Learn more or order at http://www.dwyer-inst.com/Product/AirQuality/CarbonMonoxideTransmitters/ModelCMS300
Series RHPLC Wall Mount Humidity/Temperature TransmitterDwyer Instruments
The Series RHPLC Wall Mount Humidity/Temperature Transmitter is a compact economical sensor for the building automation market space. The stylish housing is well vented to provide air flow across the sensor to improve measurement accuracy. Each unit utilizes a capacitive polymer sensing element to deliver a proportional analog output. A combination humidity and temperature model can be configured with current, voltage, RTD, or thermistor output. A wide selection of passive RTD or thermistor temperature sensors are available in this series.
Learn more or order at www.dwyer-inst.com/Product/AirQuality/Humidity-TemperatureTransmitters/SeriesRHPLC
AE02 - ESTUDO CONTEMPORÂNEO E TRANSVERSAL COMUNICAÇÃO ASSERTIVA E INTERPESSOA...Consultoria Acadêmica
A interação face a face acontece em um contexto de copresença: os participantes estão imediatamente
presentes e partilham um mesmo espaço e tempo. As interações face a face têm um caráter dialógico, no
sentido de que implicam ida e volta no fluxo de informação e comunicação. Além disso, os participantes
podem empregar uma multiplicidade de deixas simbólicas para transmitir mensagens, como sorrisos,
franzimento de sobrancelhas e mudanças na entonação da voz. Esse tipo de interação permite que os
participantes comparem a mensagem que foi passada com as várias deixas simbólicas para melhorar a
compreensão da mensagem.
Fonte: Krieser, Deise Stolf. Estudo Contemporâneo e Transversal - Comunicação Assertiva e Interpessoal.
Indaial, SC: Arqué, 2023.
Considerando as características da interação face a face descritas no texto, analise as seguintes afirmações:
I. A interação face a face ocorre em um contexto de copresença, no qual os participantes compartilham o
mesmo espaço e tempo, o que facilita a comunicação direta e imediata.
II. As interações face a face são predominantemente unidirecionais, com uma única pessoa transmitindo
informações e a outra apenas recebendo, sem um fluxo de comunicação bidirecional.
III. Durante as interações face a face, os participantes podem utilizar uma variedade de sinais simbólicos,
como expressões faciais e mudanças na entonação da voz, para transmitir mensagens e melhorar a
compreensão mútua.
É correto o que se afirma em:
ALTERNATIVAS
I, apenas.
III, apenas.
I e III, apenas.
II e III, apenas.
I, II e III.
Entre em contato conosco
54 99956-3050
Experiência da EDP na monitorização de vibrações de grupos hídricosCarlosAroeira1
Apresentaçao sobre a experiencia da EDP na
monitorização de grupos geradores hídricos apresentada pelo Eng. Ludovico Morais durante a Reunião do Vibration Institute realizada em Lisboa no dia 24 de maio de 2024
AE01 -ESTUDO CONTEMPORÂNEO E TRANSVERSAL -COMUNICAÇÃO ASSERTIVA E INTERPESSOA...Consultoria Acadêmica
Ingedore Koch (1996, p. 17) propõe que a linguagem deve ser compreendida como forma de ação, isto é,
“ação sobre o mundo dotada de intencionalidade, veiculadora de ideologia, caracterizando-se, portanto,
pela argumentatividade”. Com base nessa afirmação, todas as relações, opiniões, interações que são
construídas via linguagem são feitas não apenas para expressar algo, mas também para provocar alguma
reação no outro. Dessa forma, fica explícito que tudo é intencional, mesmo que não tenhamos consciência
disso.
Fonte: FASCINA, Diego L. M. Linguagem, Comunicação e Interação. Formação Sociocultural e Ética I.
Maringá - Pr.: Unicesumar, 2023.
Com base no texto fornecido sobre linguagem como forma de ação e suas implicações, avalie as afirmações
a seguir:
I. De acordo com Ingedore Koch, a linguagem é uma forma de ação que possui intencionalidade e
argumentatividade, sendo capaz de provocar reações no outro.
II. Segundo o texto, todas as interações construídas por meio da linguagem são feitas apenas para expressar
algo, sem a intenção de provocar qualquer reação no interlocutor.
III. O texto sugere que, mesmo que não tenhamos consciência disso, todas as ações linguísticas são
intencionais e visam provocar algum tipo de reação no outro.
É correto o que se afirma em:
ALTERNATIVAS
I, apenas.
II, apenas.
I e III, apenas.
II e III, apenas.
I, II e III
Entre em contato conosco
54 99956-3050
2. Thermal Dispersion
O v e r v i e w
D w y e r I n s t r u m e n t s o f f e r s s e v e r a l f l o w m e a s u r i n g p r o d u c t s t h a t
u s e a t h e r m a l s e n s i n g e l e m e n t
3. Thermal Dispersion
O v e r v i e w
T h e r m a l d i s p e r s i o n f l o w s e n s o r s u s e a t e m p e r a t u r e e l e m e n t t h a t
i s h e a t e d u p b e y o n d t h e m e d i a t e m p e r a t u r e
B a s e d o n c a l o r i m e t r y, t h e f l o w m o v i n g p a s t
t h e s e n s o r w i l l h a v e a c o o l i n g e f f e c t t h a t i s
d i r e c t l y p r o p o r t i o n a l t o t h e f l o w v e l o c i t y
T h e h e a t i s c o n v e c t e d f r o m t h e h e a t e d p r o b e
s u r f a c e t o t h e b o u n d a r y l a y e r o f t h e f l u i d
f l o w i n g o v e r t h e h e a t e d s u r f a c e
4. Thermal Dispersion
O v e r v i e w
T h e r e a r e s e v e r a l t h e r m a l d i s p e r s i o n t e c h n i q u e s u s i n g e i t h e r
s i n g l e o r m u l t i p l e t e m p e r a t u r e s e n s o r s
C o m m o n l y, R T D ’s a r e u s e d a s t h e s e n s o r
M u l t i p l e t e m p e r a t u r e s e n s o r m o d e l s u s e a t e m p e r a t u r e d i f f e r e n c e
b e t w e e n t h e t w o s e n s o r s t o c a l c u l a t e f l o w
5. Thermal Dispersion
O v e r v i e w
T h e T D F S f l o w s e n s o r u s e s a s i n g l e p l a t i n u m R T D s e n s o r t h a t i s
h e a t e d a n d c o o l e d o v e r s e v e r a l s t e p s
F i r s t , t h e R T D m e a s u r e s m e d i a t e m p e r a t u r e
a s a r e f e r e n c e
S e c o n d , t h e R T D i s h e a t e d t o a f i x e d
d i f f e r e n t i a l t e m p e r a t u r e a b o v e t h e m e d i a
t e m p e r a t u r e c r e a t i n g a t e m p e r a t u r e
g r a d i e n t a n d s t o r i n g t h e r m a l e n e r g y
6. Thermal Dispersion
O v e r v i e w
T h i r d , t h e p r o b e i s a l l o w e d t o c o o l d o w n f r o m t h e f l o w t o a n o t h e r
f i x e d d i f f e r e n t i a l t e m p e r a t u r e a b o v e t h e
m e d i a t e m p e r a t u r e
A t h e r m a l d e c a y t i m e c o n s t a n t i s t h e n
c a l c u l a t e d
L a s t , t h e p r o b e i s a l l o w e d t o c o o l b e f o r e
t h e n e x t c y c l e o f m e a s u r e m e n t s
7. Thermal Dispersion
O v e r v i e w
T h e r m a l d i s p e r s i o n f l o w s w i t c h e s h a v e m a n y a d v a n t a g e s o v e r
m e c h a n i c a l f l o w s w i t c h e s s i n c e t h e r e a r e n o m o v i n g p a r t s , s u c h
a s p a d d l e s o r v a n e s , o f f e r i n g b e t t e r l o n g t e r m r e l i a b i l i t y a n d l i f e
e x p e c t a n c y
T h e r e a r e n o m o v i n g p a r t s t o w e a r t h a t c o u l d c r e a t e l e a k s o r
s w i t c h f a i l u r e s
N o p a r t s t o g e t j a m m e d o r s t u c k f r o m p a r t i c u l a t e i n t h e m e d i a
A n d n o p a r t s t h a t c a n b r e a k o f f i n t o t h e f l o w c a u s i n g d o w n s t r e a m
d a m a g e i n p u m p s o r v a l v e s
8. Thermal Dispersion
O v e r v i e w
T h e r m a l d i s p e r s i o n f l o w s w i t c h e s a r e o m n i - d i r e c t i o n a l , o f f e r i n g
e a s i e r i n s t a l l a t i o n w i t h o u t c o n c e r n s o n f l o w a l i g n m e n t
A d d i t i o n a l l y, s i n c e a t h e r m a l s w i t c h o n l y n e e d s t o b e i n s e r t e d
1 0 % i n t o t h e f l o w, t h e p r e s s u r e d r o p i s m u c h l o w e r