47 research outputs found
Beyond Technique
Some time ago a professor in the field of guidance called me in regard to his little boy, who had a reading problem. After inquiring cautiously as to my qualifications and background, he asked, What measurable degree of progress will you guarantee in six weeks
Compressors for refrigeration equipment
Práca je venovaná problematike kompresorov pre techniku chladenia so zameranĂm na priemyselnĂ© chladenie veÄľkĂ˝ch a strednĂ˝ch vĂ˝konov. ÄŚitateÄľ zĂska základnĂ˝ prehÄľad o konštrukcii, pracovnom cykle, tlakovĂ˝ch a teplotnĂ˝ch javoch v kompresore, moĹľnostiach regulácie vĂ˝konu a oblastiach pouĹľitia troch základnĂ˝ch a v technickej praxi najÄŤastejšie pouĹľĂvanĂ˝ch typov kompresorov: piestovĂ©ho, skrutkovĂ©ho a špirálovĂ©ho kompresora. Popisuje základnĂ© prvky a fungovanie chladiaceho okruhu v rozsahu, ktorĂ© je pre pochopenie ÄŤinnosti kompresora nevyhnutnĂ©. SúčasĹĄou práce je termodynamická analĂ˝za cyklu piestovĂ©ho kompresora a predstavenie a rozbor praktickej aplikácie kompresorovĂ©ho zariadenia v reálnej prevádzke. CieÄľom práce je poskytnúť ÄŤitateÄľovi popis termodynamickĂ˝ch procesov v kompresore, ucelenĂ˝ a systematickĂ˝ prehÄľad pouĹľĂvanĂ˝ch typov kompresorov v praxi a porovnanie ich vlastnostĂ, vĂ˝hod a nevĂ˝hod.The work is devoted to the problematic of compressors for refrigeration equipment with a focus on industrial refrigeration and medium performance output requirements. Reader receives a basic overview of the construction, operating cycle, pressure and temperature process and the compressor performance control options of the three in engineering practice most common types of compressors: reciprocating, screw and scroll. It describes the basic elements and actions of the cooling circuit within the information range most important for understanding the compressor operating cycle. This work includes thermodynamic analysis of the reciprocating compressor working cycle and shows practical application of compression device in real operation. The goal of this work is to provide the reader with a description of the thermodynamic process in the compressor, a comprehensive and systematic overview of the types of compressors used in practice and compare their characteristics, advantages and disadvantages.
Hydraulic rake screen
Diplomová práca HydraulickĂ© shrabovacĂ ÄŤesle sa zaoberá návrhom konštrukÄŤnĂ©ho riešenia hydraulickĂ©ho ÄŤistiaceho zariadenia ÄŤeslĂ so zdvihom 1800 mm, ktorĂ© budĂş umiestnenĂ© v prĂvodnom kanále šĂrky 1000 mm ÄŤistiÄŤky odpadovĂ˝ch vĂ´d. SúčasĹĄou práce je posĂşdenie optimálneho návrhu konštrukcie vzhÄľadom k prevádzkovĂ˝m podmienkam a zaĹĄaĹŁeniu, mechanickĂ© a pevnostnĂ© vĂ˝poÄŤty, vĂ˝kresová dokumentácia zariadenia a potrebnĂ˝ch detailov.This diploma thesis Hydraulic rake screen deals with the design of the hydraulic screen cleaning device with a stroke of 1800 mm, which will be placed in 1000 mm wide flow chanell of the wastewater treatment facility. This paper contains structural optimalization of the structure due to operating conditions and loads, mechanical strength calculations and drawings of the device and its details.
The St. Clair River--a Study In Political Geography.
PhDGeographyUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/182912/2/0001706.pd