A compressor is an automatic gain control effect that scales the output level of a signal based on the input level. If the input level is above a certain threshold, the compressor reduces the gain of the signal based on how high the input signal is above the threshold. The 1176LN is a hardware compressor originally produced in the late sixties. The circuitry has been tweaked several times to de...

This study involves the development of a fmite element model of a hennetic reciprocating compressor for noise prediction applications. Inherent difficulties in developing the finite element model of a complicated structure are discussed and appropriate modeling strategies are evolved. The development of the complete compressor fmite element model is carried out in two stages modeling of the com...

Abstract The enormous cost of transporting oil and gas through pipelines the operational benefits that industry receives optimization has incited analysts for decades to find strategies help pipeline managers operate grids with least expense. paper aims minimize grids' operating costs using an ant colony strategy. article constructs a multi-objective modeling framework natural grid based on dat...

This pape,r describes a flow-visualizatio n technique that was employed to qualitatively evaluate the gas flow pattern inside a small, low side, hermetically sealed, re ciprocating refrigeration compressor. The applicable compressor des igns are those in which the suction gas from the evaporator is dumped into the compressor shell, and is then drawn through a muffler into the suction plenum of ...

This paper presents the construcrion, newly developed design technologies and performance characteristics of a compact horizontal scroll-type compressor for room air conditione~:s. The authors were able lo develop a compacl variable speed horizontal scroll-type compressor with a cooling capacity of I. 8 kW, which necessitated the development of new mechanisms, namely, an alCial compliance mecha...

This paper introduces the high efficiency of a horizontal rolling piston type compressor for household refrigerators. In the rolling piston type compressor, excessive compression loss and leakage loss largely affects the efficiency of the compressor. An experimental analysis of the following three items was made to determine that the performance characteristics of the compressor could be improv...

Suction accumulator in rotary compressor is an important component from standpoints of compressor cost, performance, sound and ability of controlling excess liquid refrigerant. Because of its importance, it deserves its due attention to enhancement of its functions. This paper first defines functions of an accumulator, lists major design parameters and their common ranges. Then, a couple of maj...

Prolonged operation of the gas-transport system in conditions partial loading involves frequent changes volume gas transportation, which necessitates prompt forecasting operation. When modes transport system, main criterion optimality implies maximum pumping. After all, this case, largest profit company is achieved under condition full provision consumers with energy. In incomplete caused by a ...

A dynamic simulation model of a rolling piston type rotary compressor is developed to predict the dynamic characteristics of a variable speed compressor. The model is based on the principles of conservation, real gas equations, kinematics of the crankshaft and roller, mass flow loss due to leakage, and heat transfer. For the computer simulation of the compressor, the experimental data were firs...

Emission sources at airports and compressor stations have the potential to emit pollutants, effects of which can degrade local air quality. In most cases, basis gas pumping units includes either aircraft engines that exhausted their flight life, or targeted modifications fulfill tasks in various transportation systems.
 The methodology for calculating concentration pollutants contained emi...