This document provides information on various equipment used on farms, including feeding, drinking, ventilation, cooling, and environmental control systems. It describes the components and functions of pan feeding systems, including feed delivery tubes and hoppers. Round and bell shaped nipple drinkers are also described. The ventilation system uses exhaust fans and cooling pads to regulate temperature. Sensors and controllers help automate environmental conditions.
Water condensation system based on thermoelectric coller using solar energyIJAAS Team
The main objective of the paper is to develop a water condensation system based on thermoelectric cooler using solar Energy to convert atmospheric moisture directly into usable and even drinking water. This idea can be extended further in future – For large scale implementation, RO and UV water filter can be used for producing such water that meets the standard of WHO and BIS easily. Peltier device has many types of models which are much efficient than TEC1. Those can be used. As the paper aims at producing water from atmosphere and keeping this device handy, large sized scrubbers are not used for better air filtration. Scrubbers can remove all the oxides from the air. For large implementation it can be handled. The concept of this paper can also be used as a better alternative in refrigeration science against conventional systems. It can also be observed in this way i.e. the usage of such low power semiconductor devices are indicating towards more prominent evolution of cooling engineering that is going to alter the whole scenario and myths about the power consumption of refrigeration science. Thus in near future we will be able to use such devices that are now limited within the paper.
microclimatic modeling and analysis of a fog cooled naturally ventilated gree...IJEAB
In the present paper, a thermal model has been presented for predicting the thermal environment inside a fog cooled naturally ventilated greenhouse. Experiments were conducted on a polyethylene covered greenhouse having 250 m2 ground area located at Coochbehar (latitude: 26.2o N, longitude: 89oE), West Bengal, India. The greenhouse was cooled by intermittent fogging with three distinct fogging cycles during the experiments. The greenhouse air temperature profiles as predicted by theoretical model were validated for different fogging cycle configurations. The model prediction and experimental results build up a good match (co-efficient of correlation was in range of 0.85 to 0.97). It was observed that fogging cycle configuration (spray time and spray interval combination) influences greatly the cooling performance of the fogging system. Further analysis revealed that greenhouse temperature could be maintained 2-5oC below the ambient temperature by employing suitable fogging cycle, maintaining the relative humidity within acceptable level.
In an early 19th century, modern refrigeration technologies were introduced to the world. In the last few
decades, the use of refrigeration systems has significantly increased. Currently, Cooling is achieved with vapour
compression system that use a specific refrigerant. In recent years, it has been discovered that conventional
refrigerants affect the environment adversely. For the safety of the environment, it is necessary to avoid the use of
environmentally hazardous refrigerants by developing new alternative refrigeration technologies such as
Thermoacoustic Refrigeration System. This paper describes the variation of hot end temperature and the temperature difference between the stack ends with the various parameters like frequency, mean pressure.
Investigation on Natural Circulation Loop with NanofluidIJERA Editor
Natural circulation loops transport heat from a heat source to a heat sink by natural convection process and
without the aid of pumps to circulate loop fluid to transport the heat. A vertically placed circular pipe loop is
equipped with two heat exchangers placed at its lower end and top end for heating and cooling of the loop
fluid respectively forms the Natural circulation loop. The fluid circulation is the result of buoyancy forces,
which in turn is the result of the density differences induced by the temperature differences existing in the
heat source and sink.
Investigation is carried out with loop fluid as distilled water alone and also with 0.25% concentration of CuO
nanofluids as loop fluid at various temperatures of heat source. It is observed that natural circulation flow
rates are enhanced with the use of nanofluid than with distilled water alone and also with increasing
temperature of hot fluid entering into the heat source.
This paper describes an experimental study of using the waste heat from a Panasonic Under-
Ceiling split room air - conditioner had a rated capacity of 3.51 kW (12,000 Btu/h). An under – ceiling
split type air conditioning for heating domestic water in private homes. Energy recovery improved the
performance, and the recovered energy could replace electricity completely for heating domestic water
use. An extra charge of refrigerant in the air-conditioner could prevent its compressor from over heating
during energy recovery. The experimental conducted on varies capacity of the range from 22.5 litres to
120 litres storage tank. Results show the water temperature increased lies in the range of 50 OC to 65
OC. It was found that, when the initial water temperature in the 22.5 litres storage tank 27 OC, the water
temperature reached 65 OC in 105 minutes. For 120 litres water, temperature increased from 27 OC to 62
OC,5 in 240 minutes.
Water condensation system based on thermoelectric coller using solar energyIJAAS Team
The main objective of the paper is to develop a water condensation system based on thermoelectric cooler using solar Energy to convert atmospheric moisture directly into usable and even drinking water. This idea can be extended further in future – For large scale implementation, RO and UV water filter can be used for producing such water that meets the standard of WHO and BIS easily. Peltier device has many types of models which are much efficient than TEC1. Those can be used. As the paper aims at producing water from atmosphere and keeping this device handy, large sized scrubbers are not used for better air filtration. Scrubbers can remove all the oxides from the air. For large implementation it can be handled. The concept of this paper can also be used as a better alternative in refrigeration science against conventional systems. It can also be observed in this way i.e. the usage of such low power semiconductor devices are indicating towards more prominent evolution of cooling engineering that is going to alter the whole scenario and myths about the power consumption of refrigeration science. Thus in near future we will be able to use such devices that are now limited within the paper.
microclimatic modeling and analysis of a fog cooled naturally ventilated gree...IJEAB
In the present paper, a thermal model has been presented for predicting the thermal environment inside a fog cooled naturally ventilated greenhouse. Experiments were conducted on a polyethylene covered greenhouse having 250 m2 ground area located at Coochbehar (latitude: 26.2o N, longitude: 89oE), West Bengal, India. The greenhouse was cooled by intermittent fogging with three distinct fogging cycles during the experiments. The greenhouse air temperature profiles as predicted by theoretical model were validated for different fogging cycle configurations. The model prediction and experimental results build up a good match (co-efficient of correlation was in range of 0.85 to 0.97). It was observed that fogging cycle configuration (spray time and spray interval combination) influences greatly the cooling performance of the fogging system. Further analysis revealed that greenhouse temperature could be maintained 2-5oC below the ambient temperature by employing suitable fogging cycle, maintaining the relative humidity within acceptable level.
In an early 19th century, modern refrigeration technologies were introduced to the world. In the last few
decades, the use of refrigeration systems has significantly increased. Currently, Cooling is achieved with vapour
compression system that use a specific refrigerant. In recent years, it has been discovered that conventional
refrigerants affect the environment adversely. For the safety of the environment, it is necessary to avoid the use of
environmentally hazardous refrigerants by developing new alternative refrigeration technologies such as
Thermoacoustic Refrigeration System. This paper describes the variation of hot end temperature and the temperature difference between the stack ends with the various parameters like frequency, mean pressure.
Investigation on Natural Circulation Loop with NanofluidIJERA Editor
Natural circulation loops transport heat from a heat source to a heat sink by natural convection process and
without the aid of pumps to circulate loop fluid to transport the heat. A vertically placed circular pipe loop is
equipped with two heat exchangers placed at its lower end and top end for heating and cooling of the loop
fluid respectively forms the Natural circulation loop. The fluid circulation is the result of buoyancy forces,
which in turn is the result of the density differences induced by the temperature differences existing in the
heat source and sink.
Investigation is carried out with loop fluid as distilled water alone and also with 0.25% concentration of CuO
nanofluids as loop fluid at various temperatures of heat source. It is observed that natural circulation flow
rates are enhanced with the use of nanofluid than with distilled water alone and also with increasing
temperature of hot fluid entering into the heat source.
This paper describes an experimental study of using the waste heat from a Panasonic Under-
Ceiling split room air - conditioner had a rated capacity of 3.51 kW (12,000 Btu/h). An under – ceiling
split type air conditioning for heating domestic water in private homes. Energy recovery improved the
performance, and the recovered energy could replace electricity completely for heating domestic water
use. An extra charge of refrigerant in the air-conditioner could prevent its compressor from over heating
during energy recovery. The experimental conducted on varies capacity of the range from 22.5 litres to
120 litres storage tank. Results show the water temperature increased lies in the range of 50 OC to 65
OC. It was found that, when the initial water temperature in the 22.5 litres storage tank 27 OC, the water
temperature reached 65 OC in 105 minutes. For 120 litres water, temperature increased from 27 OC to 62
OC,5 in 240 minutes.
An overview of stack design for a thermoacoustic refrigeratoreSAT Journals
Abstract A thermoacoustic refrigerator utilizes the thermal interactions of the sound waves with the medium while they travel to produce refrigeration. Sound energy propagates in longitudinal fashion through the medium, thus resulting in compressions and rarefactions in the medium and hence heating and cooling the medium subsequently. The stack acts as a medium to transfer the heat from one point in the system to another. The stack is thus the heart of any thermoacoustic refrigeration system. This paper provides a brief overview of the construction and working of the thermoacoustic refrigerator and focusses on the stack of a thermoacoustic refrigeration system. The desired thermal properties of the stack material like the thermal conductivity and specific heat have been discussed. An optimum spacing obtained from previous works based on the thermal and viscous penetration depths has been briefly discussed. Various stack geometries like the parallel plate type, the spiral type, pin type and porous stacks made of reticulated vitreous carbon have been elaborated. Keywords: Thermoacoustic refrigerator, Stack, Thermal penetration depth, Stack geometry, Stack spacing.
STUDY ON THE BEHAVIOUR OF CUO NANO PARTICLES IN RADIATOR HEAT EXCHANGER FOR A...P singh
In this present study, the forced convective heat transfer performance of automobile radiator has been studied experimentally by using Nano fluid (CuO-Water) as a coolant for an automobile radiator.. Experimental works were conducted to investigate the effect of Copper-Oxide (CuO) nanoparticles volume concentration and the operating temperatures on the rate of Nano fluids heat transfer in a radiator heat Exchanger. CuO nanoparticles were mixed with the base fluid water and also Sodium Lauryl Sulphate (SLS) powder was added to enhance the mixing process and stabilize the dispersion of the Nano fluids. Experimental runs were conducted at varying operating temperatures which include that, CuO-water at different temperature such as 40℃, 50℃, 60℃, 70℃, 75℃, 78℃, 80℃, 83℃. Among the operating temperatures selected for study 80℃, gives the best performance in heat transfer and the convection heat transfer coefficient. The results of the current work generally indicate that Nano fluids have the potential to enhance the heat transfer of a compact heat exchanger. Results indicate that, best overall heat transfer coefficient for the radiator is obtained at a hot fluid inlet temperature of 80℃, and at a flow rate of 0.075kg/sec.
Predicting the amount of electricity produced in a power plant is very important for today’s economy.
Oven Power (MW), Boiler Input Gas Temperature, Superheated Steam Amount, ID-Fan Speed, Feeding
Water Tank data affect the electricity production.
Ventilation is necessary in modern controlled poultry houses to provide fresh air into the house and to expel noxious gasses from the house to keep the environment fresh and birds healthy.
There are different types of ventilation depends on the weather like minimum ventilation in cold weather, transitional ventilation in optimum weather and tunnel ventilation in extreme weather.
A novel approach to design and fabrication of thermo-acoustic refrigerator us...IOSR Journals
The basic object of this paper is compression of refrigerant by the consumption of high amplitude
sound waves that results the generation thermal Energy. For generation of sound waves a loud speaker (or
common audio speaker) has been employed for creating high amplitude sound waves which compresses
refrigerant (helium) by the well Known thermodynamics process of heat absorption. A Thermo acoustic
refrigerator is fabricated with a cooler and loud speaker. The acoustic power produced by a loud speaker as a
sound waves reaches to heat the pump. The cooler works on a reverse Carnot cycle by incorporating a compact
acoustic network to create the travelling wave phasing necessary to operate. As the acoustic wave propagates
temperature difference occurs at the ends of stack, heat and cold is trap by the heat exchangers regenerator
from a cold heat exchanger to an ambient one. Instead of using co-axial topology network, the toroidal is used.
The design, construction and performance measurement of the cooler are also discussed. Finally, at 80 C a
coefficient of performance 7.0 is achieved.
An overview of stack design for a thermoacoustic refrigeratoreSAT Journals
Abstract A thermoacoustic refrigerator utilizes the thermal interactions of the sound waves with the medium while they travel to produce refrigeration. Sound energy propagates in longitudinal fashion through the medium, thus resulting in compressions and rarefactions in the medium and hence heating and cooling the medium subsequently. The stack acts as a medium to transfer the heat from one point in the system to another. The stack is thus the heart of any thermoacoustic refrigeration system. This paper provides a brief overview of the construction and working of the thermoacoustic refrigerator and focusses on the stack of a thermoacoustic refrigeration system. The desired thermal properties of the stack material like the thermal conductivity and specific heat have been discussed. An optimum spacing obtained from previous works based on the thermal and viscous penetration depths has been briefly discussed. Various stack geometries like the parallel plate type, the spiral type, pin type and porous stacks made of reticulated vitreous carbon have been elaborated. Keywords: Thermoacoustic refrigerator, Stack, Thermal penetration depth, Stack geometry, Stack spacing.
STUDY ON THE BEHAVIOUR OF CUO NANO PARTICLES IN RADIATOR HEAT EXCHANGER FOR A...P singh
In this present study, the forced convective heat transfer performance of automobile radiator has been studied experimentally by using Nano fluid (CuO-Water) as a coolant for an automobile radiator.. Experimental works were conducted to investigate the effect of Copper-Oxide (CuO) nanoparticles volume concentration and the operating temperatures on the rate of Nano fluids heat transfer in a radiator heat Exchanger. CuO nanoparticles were mixed with the base fluid water and also Sodium Lauryl Sulphate (SLS) powder was added to enhance the mixing process and stabilize the dispersion of the Nano fluids. Experimental runs were conducted at varying operating temperatures which include that, CuO-water at different temperature such as 40℃, 50℃, 60℃, 70℃, 75℃, 78℃, 80℃, 83℃. Among the operating temperatures selected for study 80℃, gives the best performance in heat transfer and the convection heat transfer coefficient. The results of the current work generally indicate that Nano fluids have the potential to enhance the heat transfer of a compact heat exchanger. Results indicate that, best overall heat transfer coefficient for the radiator is obtained at a hot fluid inlet temperature of 80℃, and at a flow rate of 0.075kg/sec.
Predicting the amount of electricity produced in a power plant is very important for today’s economy.
Oven Power (MW), Boiler Input Gas Temperature, Superheated Steam Amount, ID-Fan Speed, Feeding
Water Tank data affect the electricity production.
Ventilation is necessary in modern controlled poultry houses to provide fresh air into the house and to expel noxious gasses from the house to keep the environment fresh and birds healthy.
There are different types of ventilation depends on the weather like minimum ventilation in cold weather, transitional ventilation in optimum weather and tunnel ventilation in extreme weather.
A novel approach to design and fabrication of thermo-acoustic refrigerator us...IOSR Journals
The basic object of this paper is compression of refrigerant by the consumption of high amplitude
sound waves that results the generation thermal Energy. For generation of sound waves a loud speaker (or
common audio speaker) has been employed for creating high amplitude sound waves which compresses
refrigerant (helium) by the well Known thermodynamics process of heat absorption. A Thermo acoustic
refrigerator is fabricated with a cooler and loud speaker. The acoustic power produced by a loud speaker as a
sound waves reaches to heat the pump. The cooler works on a reverse Carnot cycle by incorporating a compact
acoustic network to create the travelling wave phasing necessary to operate. As the acoustic wave propagates
temperature difference occurs at the ends of stack, heat and cold is trap by the heat exchangers regenerator
from a cold heat exchanger to an ambient one. Instead of using co-axial topology network, the toroidal is used.
The design, construction and performance measurement of the cooler are also discussed. Finally, at 80 C a
coefficient of performance 7.0 is achieved.
An overview of Inclusion body hepatitis-hydropericardium syndrome (IBH-HPS) a...Dr.Kedar Karki
IBH/HPS is an acute infectious disease characterized by typical hydropericardium, severe anaemia, necrotic hepatitis and high mortality. In natural outbreaks, the affected birds may not exhibit any clinical signs (Jaffery, 1988) except sudden heavy mortality (Ravikumar et al., 1997). Mortality rates in various outbreaks range from 15- 60% (Asrani et al., 1997).
Textile fabric may be define as an assembly of fiber, yarn or combination of these. There are several ways to manufacture a fabric.To produce woven fabric yarn preparation is essential.Good preparation means good weaving,Good weaving =Quality fabric.
Testing is the process or procedure to determines the quality of a product.The testing of textile products is an expensive business. A textile commercial laboratory has to be set up and furnished with a range of test equipment.Textile Testing & Quality Control (TTQC) is very important work or process in each department of export oriented industry. Buyers want quality but not quantity. In every department of textile industry quality maintained of each material, because one material’s quality depend on another’s quality. For example, if qualified fiber is inputted then output will be good yarn.
Thermal plant instrumentation and controlShilpa Shukla
Detail working description of each components used in A Thermal or Coal based Plant for generation of electricity. Controlling and automation is described.
This report of mine includes all the major details about the instruments, various important experiments from the field of biotechnology. The major highlight of this report is "PLANT TISSUE CULTURE" which includes banana culture in it.
Development of liquid (water) cooling systemUtsash Sarker
In this slide show we describe the required materials and working procedure of liquid(water) cooling system with its objective, advantages, dis-advantages, limitations, end uses, scopes/modification, summery and so on.
If anyone is helped by our slideshow than its our pleasure. and we get encourage to do like this type of work in future. The main purpose of this slideshow is to help others.
Following point included in this presentation
1. Types of System (Dry Sprinkler System,Wet Sprinkler System,Pre-action Sprinkler System,Deluge Sprinkler System,
2.Sprinkler system Head Types(Upright,Sidewall,Concealed,Pendent)
The instruments used in laboratory be it Autoclave, Water Bath, Incubator, Spectrophotometer, Oven, Laminar Air Flow, Vortex Mixer, Colony counter, pH Meter, Colorimeter and Centrifuge Machine.
ROLE OF CONTROL AND INSTRUMENTATION IN THERMAL POWER PLANTGaurav Rai
Role of control and instrumentation in thermal power plant.
Use of various instruments for the measurements of flow, pressure and temperature in industries.
Introduction to Farm Equipment, Fittings, Gadgets and Their Working
1.
2.
3. There are many equipment used in farm.
List of farm equipment
1. Feeding system
2. Drinking system
3. Ventilation system
4. Cooling pad
5. Brooder
6. House environmental controller
7. Generator
4.
5. Pan feeding system with centralized feed level adjustment represents
a major technological innovation in modern environment controlled
houses. This helps in minimizing feed waste, labor and helps
maintain excellent hygienic conditions for the birds.
The feeding system consist of
Drive system (Taiwan Motor) capacity of 0.75 kw. The highly
efficient gear motor drive is designed for consistent operation and
uniform feed distribution.
Feed delivery tube Galvanized tube diameter is 44, 45 mm, tube
length is 305 cm. The tube has 2, 3 or 4 holes every 3m/unit.
6. Feed Pan Capacity: Approx. 50-60 birds per pan feeder,
Material: Plastic. The height is 7.8CM, contain more feeds for
adult birds and prevent feed spillage. The bottom pan can be
opened for clean-up.
Winch Use for curtain and feeding line suspension.
Feed Hopper Light, durable, fully electrifying feed line
hoppers are available in the standard 120 pound (54 kg)
capacity or larger 200 and 300 pound (91 and 135 kg)
capacities.
Steel Wire
11. Bell Shape The Drinker Bell is made of smooth, high
impact polypropylene which allows no rust, corrosion, or
bacteria build up.
Capacity : 75 Breeders/Broiler
Round Drinker is especially designed for growers. Tests
have proved that chicks are attracted to this particular
shape and color. As feed and manure does not adhere to it,
it minimizes the spread of diseases in the farm.
Capacity/bird : 60 Broilers
12. The drinking system consist of
Pressure Regulator Material: Plastic
1) Water pressure adjustable.
2) Water flush valve.
3) Capable to replace other regulators.
Support and water tube is 3.2 mm, 3M long each tube
and support tube is 2.6MM, 3M long each tube
Nipple Drinking System Capacity: Approx. 15-20
chicken per nipple drinker.
13. End Flush Kit: Drinking line can be flushing by itself,
simply open the valve on regulator, the water will flush
and come out from end flush kit, easy to maintain.
Water Pressure Indicator Tube: The tube includes a
plastic ball to indicate the water level inside the tube,
which shows the water pressure.
Power Winch
Steel wire
17. Tunnel ventilation
The system is basically consist of two major items, the
exhaust fans and cooling pads.
The exhaust fans bring the inside air to outside, to create
negative pressure so the fresh air can come into the room
from cooling pads.
When the fresh air go through the wet cooling pads, this
process reduces the air temperature, so the room
temperature can be reduced also.
18. Cone fan is mostly used in the house that requires more CFM or Air
velocity .
Motor: 1.5HP
The shutters can automatically open and close.
20. Cooling pads are made from a specially formulated
cellulose paper. The cross-fluted design makes Cooling
pads a strong self-supporting pad with high evaporative
efficiency and low resistance to air flow.
A distribution pad placed on the top of the cooling pad
ensures a uniform supply of the water to the cooling pad
and minimizes the risk of dry spots.
The pad 5-6 inch in thickness and with a height of
maximum 6-6.5 feet.
21. The cooling pad the complete system consist of:
Gutter system consists of a top distribution gutter
where water is being supplied to the distribution pad.
Water tank with a floater to keep the water at the
correct level.
Recirculation pump to provide a continuous supply
of water to the pad.
24. Air Inlets supply fresh air to the birds without
causing cold drafts over them, a process commonly
known as minimum ventilation.
Connecting Rope & Accessories
Side Wall Winches
25. During the first days of the life of birds, warmth is
one of the most important management parts.
The proper housing temperature right from the first
day has a decisive influence on the future
developments of the birds, and also on their growth,
health and performance.
26.
27. Control Panel can operate variable speed fans, tunnel
fans , heaters ,and foggers, by measuring temperature
and humidity, to keep the conditions as close as
possible to those which are recommended.
Temperature Sensor
Humidity Sensor
28. Generator is the combination of a diesel/petrol
engine with an electrical generator (often called an
alternator) to generate electric energy. Generating sets
are used as emergency power-supply if the grid fails.
29.
30. Infrared Thermometer
A thermometer is a device which measures temperature. The
two important fundamental components of this device are
the sensor and indicator.
Sensor is the component which senses the temperature of a
body.
Indicator shows the value of temperature in a calibrated
scale.
Infrared thermometers measure the temperature of an object
by measuring the infrared energy emitted by that object.
31.
32. Infrared light can be focused, reflected or absorbed like visible
light.
Infrared thermometers employ a lens to focus infrared light
from an object onto a detector known as a thermopile.
The function of the thermopile is to absorb infrared radiation
and convert it to heat.
The thermopile gets hotter as it absorbs more and more infrared
energy.
The excess heat is converted into electricity, which is
transmitted to a detector which determines the temperature of
the object.
33. TDS defined as the total amount of ions, including
minerals, salts or metals dissolved in a given volume of
water, expressed in units of mg per unit volume of water
(mg/L), also referred to as parts per million (ppm). TDS is
directly related to the purity of water.
How a TDS Meter Works
TDS meters are, in reality, conductivity meters.
TDS meters work by applying a voltage between two or
more electrodes.
34.
35. TDS meters work by applying a voltage between two
or more electrodes.
Positively charged ions (e.g., sodium, Na+; calcium,
Ca++; magnesium, Mg++; hydrogen ion, H+; etc.) will
move toward the negatively charged electrode.
Negatively charged ions (e.g., chloride, Cl-; sulfate,
SO4--; bicarbonate, HCO3-; etc.) will move toward the
positively charged electrode.
Ions are charged and moving, they constitute an
electrical current.
36. The meter then monitors how much current is passing
between the electrodes as a gauge of how many ions
are in solution.
TDS meters will only detect mobile charged ions.
They will not detect any neutral (uncharged)
compounds.
TDS meter do not detect macroscopic particulates.
Bacteria and viruses also won’t be detected.
37.
38. Any solution is like a small battery. It can generate
voltage depending on Hydrogen ion (H+)
concentration. pH meter measure pH by measuring
the voltage or potential difference of the solution in
which it is dipped.
How does a pH meter work?
Acidic solution has more Hydrogen ion concentration
than alkaline solution.
It has greater potential to produce an electric current.
A pH meter works like a voltmeter.
39. It measures the voltage (electrical potential) produced
by the solution whose acidity we're interested in,
compares it with the voltage of a known solution, and
uses the difference in voltage (the "potential
difference") between them to deduce the difference in
pH.
40. The CO2 Meter is a very flexible and easy to use.
The meter works perfect for measuring the indoor air
quality parameters CO2, Temp and RH%.
Carbon dioxide has been acknowledged as a good
indicator that adequate “fresh“ outside air is being
supplied to the occupants for acceptable indoor air
quality.
Response Time >30 seconds
41.
42. The air velocity meter can measure air flow, humidity,
temperature and light.
The displays the flow rate in meters per second,
kilometers per hour, miles per hour, feet per minute.
The meter relies upon a low-friction ball bearing
mounted wheel design to provide high accuracy at
high and low air velocity.
The humidity sensor measures to 95% relative
The Light measurement uses an exclusive photo diode
and color correction filter light sensor.