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What is ultimate bending strength?
It is the maximum stress at which a material will fail when subject to flexural ( moment producing) bending loads. These stresses occur a the material outer fibers.
P-tac unit is not producing heat why not?
If a P-tac (Packaged Terminal Air Conditioner) unit is not producing heat, it could be due to several reasons. Common issues include a malfunctioning thermostat, a dirty or clogged air filter, or an electrical problem such as a blown fuse or tripped circuit breaker. Additionally, if the unit is set to cooling mode or the heat pump is not functioning properly, it may not produce heat. Regular maintenance and troubleshooting can help identify and resolve these issues.
Why is convergent-divergent nozzle generally used in steam turbines?
A convergent-divergent nozzle is generally used in steam turbines. This is because it drives generators in producing electricity with the use of turbine rotors with curved axes.
What is the difference between shear stress and bearing stress?
Sear stress are forces applied in opposition, producing a shearing or tearing force. Bearing stress is a load placed in one direction, such as the weight of a building bearing on the foundation.
Why is carnot cycle not suitable as an ideal cycle for all power producing cyclic devices?
The Carnot Cycle is a prime example of what is possible under the laws of physics however the cycle is impractical to build. The facts that its keeps stepping back and forth from isothermal to adibatic processes make it very hard to construct.
Who invented toshiba?
Revie Hopper invented the Name Toshiba in 1999.
What are The Basic Concept and Principles underlying the process of delivery in basic facial care essential to the producing materials services?
inday kuh kaimu
How many types of Centrifugal pump?
Vertical centrifugal pumpsVertical centrifugal pumps are also referred to as cantilever pumps. They utilize a unique shaft and bearing support configuration that allows the volute to hang in the sump while the bearings are outside of the sump. This style of pump uses no stuffing box to seal the shaft but instead utilizes a "throttle Bushing". A common application for this style of pump is in a parts washer. Froth pumpsIn the mineral industry, or in the extraction of oilsand, froth is generated to separate the rich minerals or bitumen from the sand and clays. Froth contains air that tends to block conventional pumps and cause loss of prime. Over history, industry has developed different ways to deal with this problem. One approach consists of using vertical pumps with a tank. Another approach is to build special pumps with an impeller capable of breaking the air bubbles. In the pulp and paper industry holes are drilled in the impeller. Air escapes to the back of the impeller and a special expeller discharges the air back to the suction tank. The impeller may also feature special small vanes between the primary vanes called split vanes or secondary vanes. Some pumps may feature a large eye, an inducer or recirculation of pressurized froth from the pump discharge back to the suction to break the bubbles. [4] Multistage centrifugal pumpsA centrifugal pump containing two or more impellers is called a multistage centrifugal pump. The impellers may be mounted on the same shaft or on different shafts. For higher pressures at the outlet impellers can be connected in series. For higher flow output impellers can be connected in parallel.A common application of the multistage centrifugal pump is the boiler feedwater pump. For example, a 350 MW unit would require two feedpumps in parallel. Each feedpump is a multistage centrifugal pump producing 150 l/s at 21 MPa.All energy transferred to the fluid is derived from the mechanical energy driving the impeller. This can be measured at isentropic compression, resulting in a slight temperature increase (in addition to the pressure increase).Energy usageThe energy usage in a pumping installation is determined by the flow required, the height lifted and the length and friction characteristics of the pipeline. The power required to drive a pump (), is defined simply using SI units by: Single-stage radial-flow centrifugal pump where: is the input power required (W) is the fluid density (kg/m3) is the standard acceleration of gravity (9.80665 m/s2) is the energy Head added to the flow (m) is the flow rate (m3/s) is the efficiency of the pump plant as a decimalThe head added by the pump () is a sum of the static lift, the head loss due to friction and any losses due to valves or pipe bends all expressed in metres of fluid. Power is more commonly expressed as kilowatts (103 W, kW) or horsepower (kW = hp*0.746). The value for the pump efficiency, , may be stated for the pump itself or as a combined efficiency of the pump and motor system.The energy usage is determined by multiplying the power requirement by the length of time the pump is operating
Which are the companies making Chlorofluorocarbon free air conditioners?
All companies producing residential A/C units are making non-CFC units. R-22 or"Freon"units are HCFC. R-410a or"Puron" units are HFC.
Do portable air conditioners use a lot of electricity?
All air conditioners use a good bit of electricity. There is no way around that. Portable Air Conditioners use more electricity than other types of AC's when compared with actual cooling power. this is due to the fact that all of the heat producing components are located inside the room being cooled. That is not the case when looking at Window Air Conditioners, DPAC's and Split AC's. That is not to say that portables aren't great for cooling your space.. It's just that they tend to use a bit more power in doing so.. You can minimize this issue by buying a dual hose air conditioner and by insulating the exhaust hose with an insulating blanket.
How many types of centrifuges?
Vertical centrifugal pumpsVertical centrifugal pumps are also referred to as cantilever pumps. They utilize a unique shaft and bearing support configuration that allows the volute to hang in the sump while the bearings are outside of the sump. This style of pump uses no stuffing box to seal the shaft but instead utilizes a "throttle Bushing". A common application for this style of pump is in a parts washer. Froth pumpsIn the mineral industry, or in the extraction of oilsand, froth is generated to separate the rich minerals or bitumen from the sand and clays. Froth contains air that tends to block conventional pumps and cause loss of prime. Over history, industry has developed different ways to deal with this problem. One approach consists of using vertical pumps with a tank. Another approach is to build special pumps with an impeller capable of breaking the air bubbles. In the pulp and paper industry holes are drilled in the impeller. Air escapes to the back of the impeller and a special expeller discharges the air back to the suction tank. The impeller may also feature special small vanes between the primary vanes called split vanes or secondary vanes. Some pumps may feature a large eye, an inducer or recirculation of pressurized froth from the pump discharge back to the suction to break the bubbles. [4] Multistage centrifugal pumpsA centrifugal pump containing two or more impellers is called a multistage centrifugal pump. The impellers may be mounted on the same shaft or on different shafts. For higher pressures at the outlet impellers can be connected in series. For higher flow output impellers can be connected in parallel.A common application of the multistage centrifugal pump is the boiler feedwater pump. For example, a 350 MW unit would require two feedpumps in parallel. Each feedpump is a multistage centrifugal pump producing 150 l/s at 21 MPa.All energy transferred to the fluid is derived from the mechanical energy driving the impeller. This can be measured at isentropic compression, resulting in a slight temperature increase (in addition to the pressure increase).Energy usageThe energy usage in a pumping installation is determined by the flow required, the height lifted and the length and friction characteristics of the pipeline. The power required to drive a pump (), is defined simply using SI units by: Single-stage radial-flow centrifugal pump where: is the input power required (W) is the fluid density (kg/m3) is the standard acceleration of gravity (9.80665 m/s2) is the energy Head added to the flow (m) is the flow rate (m3/s) is the efficiency of the pump plant as a decimalThe head added by the pump () is a sum of the static lift, the head loss due to friction and any losses due to valves or pipe bends all expressed in metres of fluid. Power is more commonly expressed as kilowatts (103 W, kW) or horsepower (kW = hp*0.746). The value for the pump efficiency, , may be stated for the pump itself or as a combined efficiency of the pump and motor system.The energy usage is determined by multiplying the power requirement by the length of time the pump is operating
How do air conditioners affect the greenhouse effect?
Any use of electricity to run powerful machinery like air conditioners adds to the greenhouse gases in the atmosphere because most electricity is generated by burning fossil fuels (coal, oil and natural gas). This releases carbon dioxide (CO2), a greenhouse gas, which is causing the enhanced greenhouse effect that is producing global warming. This warming is causing climate change.
What is the application of solar heater?
This question is very general so the answer is.......anytime or anywhere you can change the energy of the sun to useful heat energy you have applied the principles of solar heating. This by far is the easiest and cheapest way to harness the suns energy. Producing heat (solar heating) is 8 xcheaper than producing electricity
What happens when you don't wash your hair for 3 months?
After about a month, your scalp will begin to produce natural oils which will keep your hair looking pretty :) The reason that we are not producing the oils now, is because shampoo and conditioners strip the hair of these oils. However, you will have to survive a month of dirty, smelly, oily hair first!
Who is credited with producing the first truly comprehensive theory of organization?
Henri Fayol is credited with producing the first truly comprehensive theory of organization. In his book "General and Industrial Management," published in 1916, Fayol introduced his theory of management known as the "14 Principles of Management." This theory outlined key principles such as division of work, unity of command, and scalar chain, which are still widely used in organizational management today.
How can gravity be simulated in an orbiting space ship?
Gravity can be simulated in an orbiting spaceship through methods like rotation, producing centrifugal force that mimics the effects of gravity. This can create a feeling of weight and stability for astronauts on board. Additionally, there are artificial gravity systems that use acceleration or magnetism to replicate gravitational forces in space.
What was a challenge for know- nothings elected to office?
producing change in government
