Thermodynamic analysis of reciprocating compressors

Investigation of the Thermodynamic Process of the Refrigerator Compressor Based on the m-θ Diagram

“…Sun et al [5] improved the thermodynamic model by considering other factors, such as heat transfer, leakage, gas pulsation and valve motion. Stouffs et al [6] proposed a method to obtain volumetric efficiency based on this model and presented the functional relationship between volumetric efficiency and discharge pressure, which was then verified by the experimental data. In order to calculate the volumetric efficiency of the compressor, Perez-Segarra et al [7] studied the key factors that affect the volumetric efficiency, such as heat transfer and pressure drop, leakages, super-discharging, and supercharging.…”

“…The indicated work is calculated by the integral of p and V in one cycle [6]. It is worth noting that an experimental p-V indicated diagram of a trans-critical CO 2 reciprocating compressor was obtained by Ma et al [4], and the flow losses related to the discharge and suction valves based on the p-V diagram were also presented.…”

Energy, exergy and cost analysis of a micro-cogeneration system based on an Ericsson engine

“…• The pressure variations are realized in reciprocating piston/cylinder machines; so the compression and the expansion are assumed to be isentropic in the cylinders [12]; however the actual pressure ratio in the cylinders is different from the p cr /p k due to pressure losses through the valves. • Pressure losses through the inlet and exhaust valves of the cylinders are modeled by…”

Optimizing natural gas reciprocating expansion engines for Town Border pressure reduction stations based on AGA8 equation of state

“…These compressors have been simulated with different methods. These methods have usually been classified into two sections, global models and differential models, as in all methods the variable depends on crank angle (Stouffs et al, 2000). Using a global model, Stouffs et al (Stouffs et al, 2000) investigated reciprocating compressors thermodynamically.…”

“…These methods have usually been classified into two sections, global models and differential models, as in all methods the variable depends on crank angle (Stouffs et al, 2000). Using a global model, Stouffs et al (Stouffs et al, 2000) investigated reciprocating compressors thermodynamically. In their model five main and four secondary parameters were important and obtained the volumetric effectiveness, the work per unit mass and the indicated efficiency.…”