Development and Demonstration of an Electric Heat Pump for Waste Heat Recovery in Industry. System Design and Test Results. Final Report

摘要

This report details the design of a prototypical unit planned for the recovery of heat from the vapor effluent of a thermomechanical pulping line in a paper mill. A functional and operational description of the heat pump system is given along with a thermodynamic analysis of the cycle. The various subsystems, controls, and major components are also described and an engineering justification for their selection presented. The computer programs used for determining design performance and in data reduction are included as are the thermodynamic property tables for the working fluid (methanol). Test results showing performance capability over a range of operating conditions are also given as are the results of a short endurance run. These results show that the system performed close to design predictions. At a waste steam pressure of 10 psig the measured output capacity of the unit is 33,000 pounds per hour of 63 psig steam with 20 deg F superheated at a COP of 4.6. (ERA citation 11:051136)