Loads and forces affecting the condition of piston rods in recip compressors

Piston rod load – Principle and calculation Major damages on compressors based rod load For this reason engineers must understand the loads while selecting/using a reciprocating compressor Mass forces / Inertia forces Inertia force is the force resulting from the acceleration of the reciprocating mass Force from the motor, through the crankshaft to the connection rod will move the crosshead/piston/piston rod Gas load At the beginning of a revolution high pressure is in HE and low pressure in CE In TDC the high pressure on HE is “supporting” the piston to move to TDC until it decrease But CE pressure will increase and works “against” piston when it increase Vise versa it happens after BDC The resulting force is a combination of HE and CE pressure Combines loads Fcombined = F gas load + F inertia Next Video about the best sensor positions on Reciprocating Compressors:    • What are the best sensor positions on Reci...   More videos on our YouTube-Channel:    / prognost2000   Visit our website and social media channels: Website: https://prognost.com Facebook:   / prognost   Instagram:   / prognost_systems   Linkedin:   / prognost-systems-gmbh   About PROGNOST: The systems and services of PROGNOST Systems are based upon many years of technical experience and competence in the acquisition, automated evaluation, and interpretation of condition data for reciprocating machinery. Asset Performance Management systems from PROGNOST Systems are the world-leading technology for the safe, reliable and economical operation of reciprocating machinery.