Method for directly determining tower type parameters of natural ventilation direct air cooling tower according to back pressure

Abstract

The embodiment of the invention provides a method for directly determining tower type parameters of a natural ventilation direct air cooling tower according to back pressure, and relates to the technical field of cooling tower type parameter optimizing.The method comprises the steps that the temperature of condensed water is calculated based on the designed back pressure of the air cooling tower; the number of cooling triangle groups is given, and the head-on wind speed is determined based on the condensation water temperature; calculating the resistance of air passing through the air cooling tower based on the head-on wind speed; and calculating tower type parameters of the air cooling tower based on the resistance according to the suction force and resistance balance principle of the air cooling tower. According to the method, the tower type of the cooling tower can be determined according to the back pressure, and under the condition that the same back pressure is met, a plurality of tower type parameters are given by changing tower type proportion parameters, and proper tower type parameters are determined through comparison, so that the purpose of optimizing the cooling tower type is achieved.

Description

Technical Field

[0001] This application relates to the field of cooling tower type parameter optimization technology, and more specifically, to a method for directly determining the type parameters of a natural ventilation direct air-cooled tower based on back pressure. Background Technology

[0002] Natural Draft Direct Air Cooling (NDC) systems for thermal power plants represent a significant innovation in power plant air cooling technology, combining the advantages of ACC and ISC systems. They demonstrate substantial technological advantages in energy conservation, carbon emission reduction and environmental protection, noise control, susceptibility to environmental and meteorological conditions, and technological innovation and construction. These advantages make NDC technology one of the important directions for the future green and low-carbon development of the thermal power industry.

[0003] When optimizing the configuration of a power plant's cold-end system, based on research into NDC-related design parameters and thermal resistance calculation methods, multiple schemes with different back pressures, tower types, and ITDs should be combined. A techno-economic comparison of these schemes should be conducted to find the optimal match between investment and energy utilization for the air-cooled system. The optimization calculation employs the "minimum annual total cost method." This involves initially selecting several possible schemes based on the project's meteorological and site conditions. Following dynamic economic principles, the initial investment for each scheme is amortized over the economic service life to obtain the annual cost. Then, the power generation for each scheme is calculated, and the difference between the annual investment cost and the power generation cost is added together. The scheme with the minimum annual total cost is considered optimal. Summary of the Invention

[0004] The embodiments of this application provide a method for directly determining the tower type parameters of a natural ventilation direct air-cooled tower based on back pressure. This method determines the cooling tower type based on back pressure. Under the same back pressure, multiple tower type parameters are given by changing the tower type ratio parameters. By comparison, the appropriate tower type parameters are determined to achieve the purpose of optimizing the cooling tower type.

[0005] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0006] According to a first aspect of the embodiments of this application, a method is provided for directly determining the tower type parameters of a natural draft direct air-cooled tower based on back pressure, comprising: Calculate the condensate temperature based on the design back pressure of the air-cooled tower; Given the number of cooling triangle groups, the oncoming wind speed is determined based on the condensate temperature; The resistance of air passing through the air-cooled tower is calculated based on the aforementioned oncoming wind speed; Based on the principle of balance between draft and resistance in air-cooled towers, the tower type parameters of the air-cooled tower are calculated based on the resistance.

[0007] In some embodiments of this application, based on the foregoing scheme, the calculation of condensate temperature based on the design back pressure of the air-cooled tower includes: Obtain the design back pressure of the air-cooled tower and calculate the condensate temperature based on the following formula; ; ; Where T represents Kelvin temperature, Indicates the design back pressure. This indicates the temperature of the condensate.

[0008] In some embodiments of this application, based on the foregoing scheme, determining the oncoming wind speed based on the condensate temperature includes: Obtain the condensate temperature, and calculate the oncoming wind speed using the formula relating the oncoming wind speed and the condensate temperature; The calculation formula includes: Air density calculation formula: ; in, This indicates the air density at the inlet of the air-cooled tower. Indicates the dry-bulb temperature of the air. This indicates that the atmosphere is relatively humid. Indicates temperature Saturated vapor pressure at time; Formula for calculating the thermodynamic characteristics of a radiator: ; ; ; ; ; ; ; in, The heat transfer coefficient is expressed based on the surface area of ​​the radiator facing the wind. This indicates the mass flow rate of the radiator's front side. Indicates the headwind speed. Represents the experimental constant. Indicates the number of heat transfer units. This indicates the area of ​​the radiator's frontal surface. Indicates airflow. This indicates the specific heat capacity of air. Indicates the outlet air temperature. Indicates the condensate temperature. Δθ represents the heat load, and Δθ represents the air temperature rise.

[0009] In some embodiments of this application, based on the foregoing scheme, the calculation of the resistance of air passing through the air-cooled tower based on the oncoming wind speed includes: The resistance of each part of the air-cooled tower is calculated based on the oncoming wind speed, including: louver ventilation resistance, radiator inlet resistance, radiator outlet resistance, radiator resistance, airflow resistance through the tower support, resistance between the air inlet and the bottom section of the air duct, and outlet resistance. The resistance of air passing through the air-cooled tower is determined by the resistance of each part of the air-cooled tower.

[0010] In some embodiments of this application, based on the foregoing scheme, the calculation process for the ventilation resistance of louvers includes: The oncoming wind speed is converted into the wind speed passing through the louvers; Calculate the ventilation resistance of louvers using the following formula; ; In the formula: Indicates the ventilation resistance of the louvers; The ventilation resistance coefficient of the louver is obtained through experiments. Indicates the wind speed passing through the blinds; This indicates the air density outside the tower.

[0011] In some embodiments of this application, based on the foregoing scheme, the radiator inlet resistance calculation process includes: Convert the oncoming wind speed into the oncoming wind speed of the radiator; Calculate the radiator inlet resistance using the following formula; ; ; In the formula: Indicates the inlet resistance of the radiator; This represents the inlet resistance coefficient of the radiator, obtained through experiments. Indicates the frontal airflow speed through the radiator; Indicates the apex angle of the cooling triangle; This indicates the air density outside the tower.

[0012] In some embodiments of this application, based on the foregoing scheme, the calculation process for the airflow resistance through the tower support includes: Convert the oncoming wind speed to the upstream oncoming wind speed of the tower support, and use the following formula to calculate the airflow resistance through the tower support. ; ; ; In the formula: This indicates the resistance of airflow through the tower support; This indicates the drag coefficient of airflow through the tower support; Indicates the air density across the cross-section; This indicates the upstream wind speed of the tower support; This indicates the total cross-sectional area of ​​the air inlet column; Indicates the total air intake area; This indicates the width of the tower support parallel to the aerodynamic direction; Indicates the width of the tower support column in the direction of airflow; Represents the Reynolds number; This indicates the dynamic viscosity of the airflow through the tower support.

[0013] In some embodiments of this application, based on the foregoing scheme, the calculation process for the resistance between the air inlet and the bottom section of the air duct includes: The oncoming wind speed is converted into the average airflow velocity of the cross section of the upper edge of the air duct at the air inlet; The resistance between the air inlet and the bottom section of the air duct is calculated using the following formula; ; ; ; ; In the formula: This indicates the resistance at the air inlet of the cooling tower as it bends and contracts upwards; This indicates the resistance coefficient of the air inlet of the cooling tower due to its bend and upward contraction. This indicates the average air velocity at the cross-section of the air duct at the upper edge of the air inlet; Indicates the diameter of the upper edge of the tower at the air inlet; Indicates the height of the air inlet; This indicates the effective utilization coefficient of the cooling tower.

[0014] In some embodiments of this application, based on the foregoing scheme, the outlet resistance calculation process includes: The oncoming wind speed is converted into the wind speed at the outlet of the air-cooled tower; Calculate the outlet resistance using the following formula; ; In the formula: Indicates the outlet resistance of the air-cooled tower; This indicates the wind speed at the outlet of the air-cooled tower; This indicates the air density at the outlet of the air-cooled tower.

[0015] In some embodiments of this application, based on the foregoing scheme, the step of calculating the tower type parameters of the air-cooled tower based on the resistance according to the principle of balance between air-cooled tower draft and resistance includes: Calculate the effective exhaust height of the air-cooled tower based on the formula for balancing the exhaust force and resistance of the air-cooled tower. Formula for balancing draft and resistance in air-cooled towers: ; ; In the formula: DF Indicates the air-cooled tower's suction force; This indicates the resistance to airflow through the air-cooled tower; Indicates the effective exhaust height of the air-cooled tower; This indicates the inlet air density of the air-cooled tower; This indicates the air density at the tower's outlet; The tower height is calculated using the following formula based on the effective exhaust height of the air-cooled tower; ; In the formula: Indicates the height of the tower. Indicates the height of the air inlet; Based on the tower type ratio parameters, other tower type parameters are determined according to the tower height.

[0016] The technical solution of this application can quickly calculate the tower type parameters of the air-cooled tower based on the back pressure, providing technical support for power plant design.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings: Figure 1 A flowchart is shown of a method for directly determining the tower type parameters of a natural ventilation direct air-cooled tower based on back pressure according to one embodiment of this application. Detailed Implementation

[0019] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0020] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0021] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0023] The following detailed description of some embodiments of this application will be provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0024] See Figure 1 The diagram shows a flowchart illustrating a method for directly determining the tower type parameters of a natural ventilation direct air-cooled tower based on back pressure according to an embodiment of this application.

[0025] like Figure 1 As shown, a method for directly determining the tower type parameters of a natural ventilation direct air-cooled tower based on back pressure is illustrated, specifically including steps S100 to S400.

[0026] refer to Figure 1 Step S100: Calculate the condensate temperature based on the design back pressure of the air-cooled tower.

[0027] In some feasible embodiments, based on the foregoing scheme, step S100 includes: Obtain the design back pressure of the air-cooled tower and calculate the condensate temperature based on the following formula; ; ; Where T represents Kelvin temperature, Indicates the design back pressure. This indicates the temperature of the condensate.

[0028] Continue to refer to Figure 1 In step S200, given the number of cooling triangle groups, the oncoming wind speed is determined based on the condensate temperature.

[0029] It should be noted that in indirect air-cooling systems in places such as thermal power plants, the cooling triangle is the basic heat exchange unit.

[0030] In some feasible embodiments, based on the foregoing scheme, determining the oncoming wind speed based on the condensate temperature includes: Obtain the condensate temperature, and calculate the oncoming wind speed using the formula relating the oncoming wind speed and the condensate temperature; The calculation formula includes: Air density calculation formula: ; in, This indicates the air density at the inlet of the air-cooled tower. Indicates the dry-bulb temperature of the air. This indicates that the atmosphere is relatively humid. Indicates temperature Saturated vapor pressure at time; Formula for calculating the thermodynamic characteristics of a radiator: ; ; ; ; ; ; ; in, The heat transfer coefficient is expressed based on the surface area of ​​the radiator facing the wind. This indicates the mass flow rate of the radiator's front side. Indicates the headwind speed. Represents the experimental constant. Indicates the number of heat transfer units. This indicates the area of ​​the radiator's frontal surface. Indicates airflow. This indicates the specific heat capacity of air. Indicates the outlet air temperature. Indicates the condensate temperature. Δθ represents the heat load, and Δθ represents the air temperature rise.

[0031] Understandably, in the specific calculation process, a face wind speed can be assumed first, and a condensate temperature can be calculated by combining the air density calculation formula and the radiator's thermodynamic characteristics calculation formula. When the condensate temperature is equal to the condensate temperature corresponding to the back pressure, this face wind speed is the face wind speed required for the corresponding back pressure.

[0032] Continue to refer to Figure 1 Step S300: Calculate the resistance of air passing through the air-cooled tower based on the oncoming wind speed.

[0033] In some feasible embodiments, based on the foregoing scheme, the calculation of the air resistance passing through the air-cooled tower based on the oncoming wind speed includes: The resistance of each part of the air-cooled tower is calculated based on the oncoming wind speed, including: louver ventilation resistance, radiator inlet resistance, radiator outlet resistance, radiator resistance, airflow resistance through the tower support, resistance between the air inlet and the bottom section of the air duct, and outlet resistance. The resistance of air passing through the air-cooled tower is determined by the resistance of each part of the air-cooled tower.

[0034] In some feasible embodiments, based on the aforementioned scheme, the calculation process for the ventilation resistance of louvers includes: The oncoming wind speed is converted into the wind speed passing through the louvers; Calculate the ventilation resistance of louvers using the following formula; ; In the formula: Indicates the ventilation resistance of the louvers; The ventilation resistance coefficient of the louver is obtained through experiments. Indicates the wind speed passing through the blinds; This indicates the air density outside the tower.

[0035] In some feasible embodiments, based on the aforementioned scheme, the radiator inlet resistance calculation process includes: Convert the oncoming wind speed into the oncoming wind speed of the radiator; Calculate the radiator inlet resistance using the following formula; ; ; In the formula: Indicates the inlet resistance of the radiator; This represents the inlet resistance coefficient of the radiator, obtained through experiments. Indicates the frontal airflow speed through the radiator; Indicates the apex angle of the cooling triangle; This indicates the air density outside the tower.

[0036] In some feasible embodiments, based on the aforementioned scheme, the radiator outlet resistance calculation process includes: Obtain the air density inside the air-cooled tower and use the following formula to calculate the radiator outlet resistance; ; ; In the formula: This indicates the radiator outlet resistance, in Pa. This represents the radiator outlet resistance coefficient, obtained experimentally, and is set to 0.6 in the program. This indicates the air density inside the air-cooled tower, in kg / m³. 3 .

[0037] in, The calculation formula is as follows: .

[0038] In some feasible embodiments, based on the aforementioned scheme, the radiator resistance calculation process includes: Calculate the radiator resistance using the following formula; ; In the formula: This indicates the radiator resistance, in Pa. This represents the radiator's drag coefficient, obtained experimentally. This indicates that the index was obtained through experiments.

[0039] In some feasible embodiments, based on the aforementioned scheme, the calculation process for the airflow resistance through the tower support includes: Convert the oncoming wind speed to the upstream oncoming wind speed of the tower support, and use the following formula to calculate the airflow resistance through the tower support. ; ; ; In the formula: This indicates the resistance of airflow through the tower support; This indicates the drag coefficient of airflow through the tower support; Indicates the air density across the cross-section; This indicates the upstream wind speed of the tower support; This indicates the total cross-sectional area of ​​the air inlet column; Indicates the total air intake area; This indicates the width of the tower support parallel to the aerodynamic direction; Indicates the width of the tower support column in the direction of airflow; Represents the Reynolds number; This indicates the dynamic viscosity of the airflow through the tower support.

[0040] In some feasible embodiments, based on the aforementioned scheme, the calculation process for the resistance between the air outlet and the bottom section of the air duct includes: The oncoming wind speed is converted into the average airflow velocity of the cross section of the upper edge of the air duct at the air inlet; The resistance between the air inlet and the bottom section of the air duct is calculated using the following formula; ; ; ; ; In the formula: This indicates the resistance at the air inlet of the cooling tower as it bends and contracts upwards; This indicates the resistance coefficient of the air inlet of the cooling tower due to its bend and upward contraction. This indicates the average air velocity at the cross-section of the air duct at the upper edge of the air inlet; Indicates the diameter of the upper edge of the tower at the air inlet; Indicates the height of the air inlet; This indicates the effective utilization coefficient of the cooling tower.

[0041] In some feasible embodiments, based on the aforementioned scheme, the outlet resistance calculation process includes: The oncoming wind speed is converted into the wind speed at the outlet of the air-cooled tower; Calculate the outlet resistance using the following formula; ; In the formula: Indicates the outlet resistance of the air-cooled tower; This indicates the wind speed at the outlet of the air-cooled tower; This indicates the air density at the outlet of the air-cooled tower.

[0042] It is understandable that the resistance to air passing through the air-cooled tower is the sum of all the resistances mentioned above, that is: ; in, This indicates the resistance of air passing through the air-cooled tower.

[0043] Continue to refer to Figure 1 Step S400: Based on the principle of balance between air-cooled tower suction and resistance, calculate the tower type parameters of the air-cooled tower based on the resistance.

[0044] In some feasible embodiments, based on the foregoing scheme, the step of calculating the tower type parameters of the air-cooled tower based on the resistance according to the principle of balance between air-cooled tower draft and resistance includes: Calculate the effective exhaust height of the air-cooled tower based on the formula for balancing the exhaust force and resistance of the air-cooled tower. Formula for balancing draft and resistance in air-cooled towers: ; ; In the formula: DF Indicates the air-cooled tower's suction force; This indicates the resistance to airflow through the air-cooled tower; Indicates the effective exhaust height of the air-cooled tower; This indicates the inlet air density of the air-cooled tower; This indicates the air density at the tower's outlet; The tower height is calculated using the following formula based on the effective exhaust height of the air-cooled tower; ; In the formula: Indicates the height of the tower. Indicates the height of the air inlet; Based on the tower type ratio parameters, other tower type parameters are determined according to the tower height.

[0045] It should be noted that other tower type parameters include: radiator zero-meter diameter, cooling tower zero-meter diameter, outlet diameter, air inlet height, and other key parameters.

[0046] Understandably, after obtaining all the parameters of the cooling tower type, it is possible to calculate whether the height-to-diameter ratio meets the specifications. If it does not, cooling calculations can be performed again by assuming different cooling triangles until the cooling tower type ratio specifications are met.

[0047] Other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. It should be understood that this application is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A method for directly determining the tower type parameters of a natural draft direct air-cooled tower according to the back pressure, characterized in that, The method comprises the following steps: calculating the condensate water temperature based on the design back pressure of the air cooling tower; determining the face wind speed based on the condensate water temperature given the number of cooling triangle groups; calculating the air resistance through the air cooling tower based on the face wind speed; calculating the tower type parameters of the air cooling tower based on the resistance according to the air cooling tower draft and resistance balance principle.

2. The method of claim 1, wherein, The method for calculating the condensate water temperature based on the design back pressure of the air cooling tower comprises the following steps: obtaining the design back pressure of the air cooling tower, and calculating the condensate water temperature based on the following formula: ； ； where T represents the Keltner temperature, represents the design back pressure, represents the condensate temperature.

3. The method of claim 1, wherein, The method for determining the face wind speed based on the condensate water temperature comprises the following steps: obtaining the condensate water temperature, and calculating the face wind speed by using the calculation formula between the face wind speed and the condensate water temperature; The calculation formula comprises the following formula: Air density calculation formula: ; wherein, represents the air density at the inlet of the air cooling tower, represents the dry bulb temperature of the air, represents the relative humidity of the atmosphere, represents the air temperature saturation vapor pressure at the time; Thermal characteristics of the heat sink calculation formula: ; ; ; ; ; ; ; wherein, represents the heat transfer coefficient based on the area of the windward surface of the radiator, represents the mass flow rate of the windward surface of the radiator, represents the wind speed, represents the test constant, represents the number of heat transfer units, represents the area of the windward surface of the radiator, represents the air flow rate, represents the specific heat capacity of air, represents the outlet air temperature, represents the condensation water temperature, represents the heat load, and Δθ represents the air temperature rise.

4. The method of claim 1, wherein, The method for calculating the air resistance through the air cooling tower based on the face wind speed comprises the following steps: calculating the resistance of each part of the air cooling tower according to the face wind speed, including the louvre ventilation resistance, the radiator inlet resistance, the radiator outlet resistance, the radiator resistance, the air flow through the tower cylinder support resistance, the resistance between the air inlet and the bottom section of the air duct, and the outlet resistance; confirming the air resistance through the air cooling tower according to the resistance of each part of the air cooling tower.

5. The method of claim 4, wherein, The calculation process of the louvre ventilation resistance comprises the following steps: converting the face wind speed into the wind speed through the louvre; calculating the louvre ventilation resistance by using the following formula: ； wherein: represents the louvered vent resistance; represents the louvered vent resistance coefficient, which is obtained by experiment; represents the air velocity through the louvered vent; represents the air density outside the tower.

6. The method of claim 4, wherein, The calculation process of the radiator inlet resistance comprises the following steps: converting the face wind speed into the face wind speed of the radiator; calculating the radiator inlet resistance by using the following formula: ； ； where: represents the heat sink inlet resistance; represents the heat sink inlet resistance coefficient, obtained by experiment; represents the face velocity through the heat sink; represents the cooling triangle apex angle; represents the tower outside air density.

7. The method of claim 4, wherein, The calculation process of the air flow through the tower cylinder support resistance comprises the following steps: converting the face wind speed into the upstream face wind speed of the tower cylinder support, and calculating the air flow through the tower cylinder support resistance by using the following formula: ； ； ； where: represents the air flow through the tower leg resistance; represents the air flow through the tower leg resistance coefficient; represents the air density through the cross section; represents the upstream wind speed over the tower leg; represents the total cross sectional area of the inlet leg; represents the total inlet area; represents the width of the tower leg parallel to the aerodynamic direction; represents the width of the tower leg parallel to the aerodynamic direction; represents the Reynolds number; represents the kinematic viscosity of the air flow through the tower leg.

8. The method of claim 4, wherein, The calculation process of the resistance between the air inlet and the bottom section of the air duct comprises the following steps: converting the face wind speed into the average air flow speed of the air duct section at the upper edge of the air inlet; calculating the resistance between the air inlet and the bottom section of the air duct by using the following formula: ； ； ； ； where: Ct = cooling tower air inlet turn and updraft contraction resistance; Ct = cooling tower air inlet turn and updraft contraction resistance coefficient; V = inlet air velocity at the upper edge of the inlet air duct; D = diameter of the tower at the upper edge of the inlet air duct; H = height of the inlet air duct; Ct = cooling tower effective utilization coefficient.

9. The method of claim 4, wherein, The calculation process of the outlet resistance comprises the following steps: converting the face wind speed into the wind speed at the outlet of the air cooling tower; calculating the outlet resistance by using the following formula: ； In the formulae: represents the air cooling tower outlet resistance; represents the air speed at the air cooling tower outlet; represents the air density at the air cooling tower outlet.

10. The method of claim 1, wherein, The method for calculating the tower type parameters of the air cooling tower based on the resistance according to the air cooling tower draft and resistance balance principle comprises the following steps: calculating the effective draft height of the air cooling tower according to the air cooling tower draft and resistance balance formula; The air cooling tower draft and resistance balance formula is as follows: ； ； wherein: DF represents the draft of the air cooling tower; represents the resistance of air passing through the air cooling tower; represents the effective draft height of the air cooling tower; represents the inlet air density of the air cooling tower; represents the outlet air density of the tower; calculating the tower height by using the following formula according to the effective draft height of the air cooling tower; ； In the formula: represents the tower height, represents the inlet height; determining other tower type parameters based on the tower height according to the tower type proportion parameters.

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