International Journal of Theoretical and Applied Mechanics. ISSN 0973-6085 Volume 12, Number 1 (2017) pp. 83-92 © Research India Publications http://www.ripublication.com Interpretive Structural Modeling (ISM) for Recovery of Heat Energy Kuldip Arun Rade 1 , Vilas A. Pharande 2 and Daulat. R. Saini 3 1 Mechanical Engineering Department, B.V.D.U. College of Engineering, Pune-satara Road, Pune-46, Maharashtra, India. 2 Mechanical Engg Department SET, Arvind Gavali college of Engineering, Varye, Satara-15, Maharashtra, India. 3 Chemical Engg Department, National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-08, Maharashtra, India. Abstract In this paper twenty nine factors responsible for heat transfer in the recovery of heat from hot dyeing waste slurry and its Interpretive Structural Modeling (ISM) has been developed. In this systematic approach of ISM, first of all a concept model of the problem has been formulated, followed by the formulations of Structural Self Interaction Matrix (SSIM) and Reachability Matrix. The level of significance of each factor has been derived by level partitioning. The initial digraph is prepared on the basis of the canonical matrix. ISM based model is finalized after checking for conceptual inconsistency and necessary modifications. The MICMAC analysis is also conducted with the help of driving and dependence diagram, which states that factor 4 (mass flow rate of working medium (water)) and factor 5 (Inlet temperature of working fluid (slurry)) are the major parameters for heat recovery and needs more attention. Keywords- Heat transfer; Heat recovery; dyeing slurry; ISM. INTRODUCTION For optimization of energy in dyeing process number of experiments was performed based on the various process parameters in research industry and readings were taken