Applying heat pumps to utilize municipal solid waste at St. Petersburg TPP

Abstract

In this article, we address an urgent problem of solid waste management. We consider the possibility of applying gasification technology for municipal solid waste disposal at existing TPPs in St. Petersburg in order to produce thermal and electric energy. St. Petersburg Northern TPP-21, facing the problem of undercooling of the circulating water in the cooling towers, is proposed as a possible placement site. Using this water as a source of low-grade heat of a heat pump installation is considered as the possible solution to the problem. The study was carried out by calculating the thermal circuits in the Boiler Designer program, and calculating the heat pump in the Cool Pack program. The efficiency of the installation is achieved by increasing the supply of thermal energy and increasing the environmental friendliness of the installation by reducing thermal pollution. We have also calculated the limits of cost-effective heat pump application.