|
|
Steam Turbine for the Waste to Energy
Janata, Petr ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
The master thesis deals with the design of a condensing steam turbine for a waste incineration plant with regulated take for a heat exchanger, which has a heat output of 15 MWt and a temperature gradient of 60/90 °C. In the thesis, a thermal scheme was first designed, which was based on the required design parameters. The maximum mass flow of steam into the turbine is 38 t/h. The pressure and temperature of the admission steam is 37 bar and 440 °C. The degassing temperature is 105 °C and the cooling water temperature at the condenser inlet is 20 °C. The following is the design and thermodynamic calculation of the turbine flow channels. The first stage of the turbine is designed as a regulatory with equal pressure blades. The rest part of the turbine is designed with overpressure blades and is divided into 6 cones, in which there are a total of 27 stages. The strength inspection of the designed blade profiles was performed. A compensating piston and a gland system were designed. Finally, bearings for the rotor were designed and then the operating diagram of the turbine was constructed. The work is supplemented by a structural drawing of the longitudinal section of the turbine.
|
|
|
The role of male external glands in sexual behaviour of insect
Dvořák, Tomáš ; Kotyková Varadínová, Zuzana (advisor) ; Hanus, Robert (referee)
The body of some insect's males is covered by glands, which females are interested in during or after courtship and copulation. Female can palpate this glands or feed on their secretion. My bachelor thesis describes these glands in five orders of insect, where they are known: Zygentoma, Zoraptera, Coleoptera and especially Orthoptera and Blattodea. In the introduction i describe briefly their histology, morphology and ontogeny. But the main part of the work deal with their ethological and ecological function. This glands have four main functions. They can serve to maneuver female into proper position and allow the male to clasp her genitalia. Another function is prolonging of copulation, which enable the male to transfer more sperm. Glands can also provide nutritious secret, through it the male directly affects the female fitness. The last function is simple signal of male quality, which through the production of secret demonstrates his good condition. The role of the glands is often uncertain and their functions are often overlaping.
|
|
|
Steam Turbine for the Waste to Energy
Janata, Petr ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
The master thesis deals with the design of a condensing steam turbine for a waste incineration plant with regulated take for a heat exchanger, which has a heat output of 15 MWt and a temperature gradient of 60/90 °C. In the thesis, a thermal scheme was first designed, which was based on the required design parameters. The maximum mass flow of steam into the turbine is 38 t/h. The pressure and temperature of the admission steam is 37 bar and 440 °C. The degassing temperature is 105 °C and the cooling water temperature at the condenser inlet is 20 °C. The following is the design and thermodynamic calculation of the turbine flow channels. The first stage of the turbine is designed as a regulatory with equal pressure blades. The rest part of the turbine is designed with overpressure blades and is divided into 6 cones, in which there are a total of 27 stages. The strength inspection of the designed blade profiles was performed. A compensating piston and a gland system were designed. Finally, bearings for the rotor were designed and then the operating diagram of the turbine was constructed. The work is supplemented by a structural drawing of the longitudinal section of the turbine.
|
|
|
The role of male external glands in sexual behaviour of insect
Dvořák, Tomáš ; Kotyková Varadínová, Zuzana (advisor) ; Hanus, Robert (referee)
The body of some insect's males is covered by glands, which females are interested in during or after courtship and copulation. Female can palpate this glands or feed on their secretion. My bachelor thesis describes these glands in five orders of insect, where they are known: Zygentoma, Zoraptera, Coleoptera and especially Orthoptera and Blattodea. In the introduction i describe briefly their histology, morphology and ontogeny. But the main part of the work deal with their ethological and ecological function. This glands have four main functions. They can serve to maneuver female into proper position and allow the male to clasp her genitalia. Another function is prolonging of copulation, which enable the male to transfer more sperm. Glands can also provide nutritious secret, through it the male directly affects the female fitness. The last function is simple signal of male quality, which through the production of secret demonstrates his good condition. The role of the glands is often uncertain and their functions are often overlaping.
|
guest ::
