the heat pump is the refrigerator performance coefficient plus 1 i e the output w 1 of the turbine s is given by the heat crossing quantity q 3 at the outlet of the heat exchanger 7 is the heat quantity q 4 absorbed from the outside in the heat exchanger 8 is fig6 is an arrangement plan of a heat cycle system according to a second embodiment of the present invention the heat cycle system shown in fig6 is similar in arrangement to the heat cycle system according to the first embodiment fig3 of the present invention except that the heat cycle system according to the second embodiment uses waste heat in a rankine cycle a i e waste heat from a condenser y 1 of a steam turbine s 2 as a heat source for the system in the heat cycle system shown in fig6 the quantity of heat given to steam from a boiler b is 10 000 kw and the output w 3 of the turbine s 2 is 3 000 kw thermal efficiency 0 3 waste heat condenser waste heat from the turbine s 2 is 7 000 kw the quantity of heat transferred from the steam eg to the refrigerant fg in the condenser y 1 is 7 000 kw the quantity of heat coming into and out of each element of the system shown in fig6 is obtained by a proportional calculation in which the quantity of heat absorbed from the outside in the condenser y 1 in the heat cycle system of fig5 i e 0 7 is assumed to be 7 000 kw that is one unit in fig5 is assumed to be 10 000 kw the input l of the compressor c.