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What is the difference between the burning temperature of diesel and petrol?
The burning temperature of diesel is higher than that of petrol. Diesel ignites at a higher temperature compared to petrol.
What is the relation between melting temperature and GC content in DNA?
Higher GC content in DNA is associated with a higher melting temperature, as GC base pairs have three hydrogen bonds compared to two in AT base pairs, making them more stable. Therefore, DNA sequences with higher GC content require higher temperatures to denature during melting compared to sequences with lower GC content.
Which would freeze at a higher temperature the great salt lake or Lake Tahoe?
The Great Salt Lake would freeze at a higher temperature than Lake Tahoe because it has a higher salinity level. The salt in the water lowers the freezing point, making it more resistant to freezing than fresh water.
What does the vapor pressure vs temperature graph reveal about the relationship between vapor pressure and temperature?
The vapor pressure vs temperature graph shows that as temperature increases, the vapor pressure also increases. This indicates that there is a direct relationship between vapor pressure and temperature, where higher temperatures lead to higher vapor pressures.
Which has higer rate of reaction the one with higher temperature or not?
The greater the temperature, the faster the rate of reaction. This is due to the fact that increasing temperature increases the activation energy, which is the amount of energy needed to get a reaction started.
What is relation between mass flow rate and discharge pressure in reciprocating compressor?
The mass flow rate and discharge pressure in a reciprocating compressor are directly related. As the discharge pressure increases, it can result in a higher mass flow rate through the compressor. This relationship is important for determining the performance and efficiency of the compressor in various operating conditions.
What would be considered a higher than normal temperature for a discharge gas line on a reciprocating compressor?
A higher than normal temperature for a discharge gas line on a reciprocating compressor typically exceeds 250°F (121°C). Operating temperatures above this threshold can indicate inefficiencies, potential overheating, or issues such as excessive compression, inadequate cooling, or mechanical malfunctions. It’s essential to monitor these temperatures closely to prevent damage and ensure optimal performance. Regular maintenance and checks can help mitigate risks associated with elevated temperatures.
Reciprocating compressors have?
Reciprocating compressors are positive displacement in machines. However, separable compressors have higher maintenance costs.
How does the compressor amperage react to an increase in discharge pressure?
An increase in discharge pressure will generally lead to an increase in compressor amperage, as the compressor will have to work harder to maintain the higher pressure. This could indicate that the compressor is working harder and consuming more energy to meet the increased demand. Monitoring compressor amperage can help in understanding the system performance and identifying any potential issues.
What is difference between vacuum pump and centrifugal pump?
A compressor is a piece of equipment that compresses gas either to transfer to a specific location or for a certain process requirement. Compressor are manufactured depending on application and can be class into two basic types; positive-displacement and centrifugal. Integrally geared centrifugal compressors can operate at many times higher speeds than reciprocating compressors. The higher speeds ultimately result in smaller package sizes, requiring a smaller footprint as compared to a reciprocating compressor. The operating speed of a reciprocating compressor is very slow due to mechanical and dynamic limitations. Furthermore, the lower speed of reciprocating compressor lends itself to larger compressor size, heavier weight, and larger plot plan size. Whereas the centrifugal compressor with higher operating speeds results in smaller overall compressor package sizes such as smaller gearing, bearings, seals, lubrication system, and foundation. Smaller packages ultimately lend themselves to saving in lower overall installations as well as lower capital and spare parts costs. Higher reliability is fully attainable with centrifugal compressors. The rotating aerodynamic components (impellers) have no physical contact with the stationary parts (inlet shroud). On the contrary, the reciprocating compressor moving components such as the piston and valves are physically in contact with the cylinder and other stationary components during operation. The physical contact causes wear and tear of both moving and stationary components, which requires constant maintenance. However, a centrifugal compressor operates for many years with continuous service without overhaul maintenance, resulting in less power plant down time. This eliminates loss of product, provides more profit, lowers risk, and results in lower maintenance cost. Overhaul periods are more predictable by analyzing characteristic efficiency and vibration trends. A typical centrifugal compressor overhaul inspection period is more than 7 years as compared to less than 2 years for most reciprocating compressors. In addition to the economical advantages of implementing a centrifugal compressor over a reciprocating compressor, many technical advantages are also evident. The centrifugal compressor discharge pressure can be regulated to less than 0.5% per second. The well-regulated compressor discharge pressure provides very steady supply of fuel to the gas turbine. This is an advantage since it does not cause additional burden to the turbine controls. On the other hand, a reciprocating compressor at best can provide 2% or more of pulsating pressure. Unsteady supply of fuel may cause hardship on the turbine control system. A reciprocating compressor would require an impractically over-sized pulsation bottle to minimize supply pressure pulsation to the level as steady as a centrifugal compressor. Considering there is no physical contact between the centrifugal compressor aerodynamic components, the need for lubrication within the compression components is not required; thus it will not add oil or other contaminants to the process gas. However, a reciprocating compressor requires oil lubricant for the piston rings. This oil eventually ends up in the process gas or it has to be separated to protect the gas turbine. Due to physical contact between the piston rings and the cylinder, the wear of the rings and packing causes particle contamination of the fuel gas. Hence, this contamination could cause premature wear on the turbine blades and other turbine fuel gas passages
Which is best Rotary compressor or reciprocating compressor?
Receip or Piston type compressor are used for large duty cycle work (A/c or other equipments), energy hungry but last longer (Heavy Duty). Where as rotary compressor are energy efficient with higher ( Energy Efficiency Ratio) but lower duty cycle and shorter life. Selection of compressor are based on the nature of application. Normally, for room A/Cs with capacity less than 3 ton, most companies offer rotary compressor due to it's EER and less duty cycle. For heavy duty A/Cs, recip or piston compressor best suited.
What is the effect of high gas suction pressure in a gas compressor?
High gas suction pressure in a gas compressor can lead to increased power consumption, reduced compressor efficiency, and potential damage to the compressor components due to excessive load. It can also result in higher discharge temperatures and potential overheating of the compressor.
Discharge line temperature with increase in super heat?
As superheat increases, the discharge line temperature is likely to also increase. This is because superheat represents the temperature rise of the refrigerant vapor above its saturation temperature, which results in higher temperatures in the system. The discharge line temperature tends to follow the trend of superheat in the system.
What happens when you have a bad air conditioner compressor?
A Typical Air Compressor used in an air conditioning system is used to compress the vapor refrigerant to a higher pressure. If your compressor is not good enough to compress to the required pressure then your air con. will not provide a good cooling effect. P.S. : The temperature when changed on the main panel will directly change the pressure of your compressor which will affect the room temperature.
What happens to the compressor superheat when the outdoor ambient temperature increases?
When the outdoor ambient temperature increases, the compressor superheat tends to decrease. This is because higher ambient temperatures cause the refrigerant to evaporate at a lower temperature, leading to lower superheat levels. This could potentially lead to overloading the compressor. Regular maintenance and adjustments may be needed to ensure optimal system performance.
How will and overcharged condenser run?
An overcharged condensor will run poorly. It will have a higher discharge temperature, high condensor subcooling, higher condensor splits and a high compression ratio.
What is high pressure triplex plunger pump?
Its a mechanical equipment which operates with higher output pressure relatively high temperature. In simplified terms it can defined as, A reciprocating pump with three pistons or plungers
