The trigeneration systems for production of cold use sorption refrigeration machines: absorption and adsorption types. Absorption systems are characterized namely by better cooling coefficient of performance, while the adsorptive systems are characterized by the ability to operate at lower temperatures. The driving heat source temperature can be as low as 60-70 °C. Such temperature of the driving heat source allows to use them in district heating systems. The article focuses on the presentation of the research results on the adsorption devices designed to work in trigeneration systems.
 Grzebielec A.: Experimental study on adsorption heat pump. Arch. Therm. 30(2009), 4, 189-200.
 Henninger S.K., Munz G., Ratzsch K.-F., Schossig P.: Cycle stability of sorption materials and composites for the use in heat pumps and cooling machines. Renew. Energy 36(2011), 3043-3049.
 Hernandez-Santoyoa J., Sanchez-Cifuentes A.: Trigeneration: an alternative for energy savings. Appl. Energy 76(2003), 219-227.
 PolySMART: Poligeneration in Europe - A technical report. POLYgeneration with advanced Small and Medium scale thermally driven Air-conditioning and Refrigeration Technology, 2008-07-31.
 Rusowicz A., Ruciński A.: The mathematical modelling of the absorption machines used in energy systems. Environ. Eng. 1-3(2011), 802-806.
 Smyk A., Pietrzyk S.: Heat losses of the district heating network during different operational conditions. Rynek Energii 103(2012), 6, 46-51.
 Srivastava N.C., Eames I.W.: A review of adsorbents and adsorbates in solidvapour adsorption heat pump systems. Appl. Therm. Eng. 18(1998), 9-10, 707-714.
 Wang D.C., Li Y.H., Li D., Xia Y.Z., Zhang J.P.: A review on adsorption refrigeration technology and adsorption deterioration in physical adsorption systems.Renew. Sust. Energy Rev. 14(2010), 344-353.
 Wang L.W., Bao H.S., Wang R.Z.: A comparison of the performances of adsorption and resorption refrigeration systems powered by the low grade heat. Renew.Energy 34(2009), 2373-2379.
 Yeo T.H.C., Tan I.A.W., Abdullah M.O.: Development of adsorption airconditioning technology using modified activated carbon - A review. Renew. Sust.Energy Rev. 16(2012), 3355-3363.