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What is the purpose of multiple passes in an evaporator in a chiller?
The purpose of multiple passes in an evaporator in a chiller is to enhance the heat transfer efficiency and optimize the cooling performance. By allowing the refrigerant to flow through the evaporator multiple times, the system can achieve greater heat absorption from the surrounding medium, which improves the overall cooling capacity. Additionally, multiple passes help to reduce the temperature difference between the refrigerant and the fluid being cooled, leading to more effective thermal exchange. This design ultimately contributes to better energy efficiency and system performance.
What should be the suction pressure for the ammonia compressors?
The suction pressure for ammonia compressors typically ranges between 10 to 20 psi (pounds per square inch) depending on the specific application and system design. However, optimal suction pressure can vary based on factors such as the temperature of the evaporator and the desired cooling capacity. It's important to consult manufacturer specifications and system requirements for precise values. Regular monitoring and adjustments may be necessary to ensure efficient operation.
How will you draw the block flow diagram of production of ammonia?
It depends on the process design.
What is equilibrium conversion how does it effect design of reactor?
equilibrium conversion is that which is at equilibrium concentration
what design formulas of water tube boiler?
The design formulas for a water tube boiler primarily involve calculations for heat transfer, pressure drop, and thermal efficiency. Key formulas include the heat transfer equation ( Q = U \cdot A \cdot \Delta T ), where ( Q ) is heat transfer rate, ( U ) is the overall heat transfer coefficient, ( A ) is the surface area, and ( \Delta T ) is the temperature difference. Additionally, boiler efficiency can be calculated using ( \eta = \frac{Q_{output}}{Q_{input}} ), while pressure drop can be estimated using Darcy-Weisbach or Hazen-Williams equations, depending on the fluid flow characteristics. Proper material selection and structural integrity must also be ensured through stress analysis based on operating pressures and temperatures.
What is the difference between rated cooling capacity and the nominal cooling capacity of an air conditioner?
Rated cooling capacity represents the actual cooling output that the air conditioner can provide under specific conditions, while nominal cooling capacity is the manufacturer's stated maximum capacity in ideal conditions. The rated cooling capacity is a more accurate representation of a unit's performance in real-world scenarios.
What is the difference between design capacity and effective capacity?
Design capacity is the maximum theoretical output of a system. Normally expressed as a rate Effective capacity is the capacity a firm expects to achieve given current operating constraints. Often lower than design capacity
What is the difference between effective capacity and design capacity?
Design capacity is the maximum theoretical output of a system. Normally expressed as a rate Effective capacity is the capacity a firm expects to achieve given current operating constraints. Often lower than design capacity
What is nominal cooling capacity?
Nominal cooling capacity is the suppliers or manufactures equipment rated capacity based on the test conditions. Test conditions always varies to design conditions, therefor in most cases the Nominal cooling capacity is more than the design or actual cooling capacity.
When do you use a chi-squared test?
When your results are nominal When it is an independent group design When the hypothesis predicts a difference.
What is difference between nominal and terminal voltage?
The rated voltage of a motor listed on the nameplate is called the terminal voltage. This indicates the actual voltage on the motors terminals at which at which the manufacturer designed to operate. Whereas, Nominal voltage is the design or configuration voltage of the electricity distribution system.
Difference between detailed design and system design?
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What is the difference between design and technique.?
The difference between design and technique is quite elaborate. Design is the development and documentation of an idea while technique is the strategy that is used to do something.
What is the difference between green design and sustainability?
green design is sustainability and sustainbility is what green design is .
What is the difference between a design pipeline engineer and a design piping engineer?
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What are the difference between a compiler design and a compiler?
In Compiler there is no design word ,whereas in compiler design there is design word
What is the difference between enginering and designing?
There is quite a difference between industrial design and design engineering. Industrial design is an applied art where the usability of products can be improved. Design engineering is a discipline that creates and transforms ideas to satisfy the requirements of a customer.
