AN EXPERIMENTAL EVALUATION OF THE GREENHOUSE-EFFECT IN R22 SUBSTITUTION

The problem of R22 phase-out in a vapour compression plant is analysed . A comparison is performed between R22 and R407C. Attention is paid t o the global evaluation of the environmental impact in terms of greenh ouse effect. The analysis has been performed on the basis of the exper imental results obtained from a vapour compression pilot plant. The co ntribution to the greenhouse effect has been taken into account by eva luating the TEWI values (Total Equivalent Warming Impact) correspondin g to different experimental conditions. (C) 1998 Elsevier Science Ltd. All rights reserved.