Recovering the Heat Dissipated by the Digital Switching Equipment

With the advent of the Digital Switching Equipment, came the need for year round cooling due to its high heat density. This meant the need for independent systems of heating and cooling within the same building, one consuming energy for heating whilst the other using energy to reject it. This simultaneous use of heating and cooling presented the opportunity for recovering the waste heat from the cooling plant and re-using it for heating other parts of the building instead of rejecting it to the atmosphere, whenever the economics justified it. This paper addresses itself to the economic aspects of energy conservation by limiting the energy used for heating where compression refrigeration is used.